Manual Well Plan

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Using WELLPLAN

R2003.11.0.1

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This publication has been provided pursuant to an agreement containing restrictions on its use. The publication is also protected by Federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed,

stored in a retrieval system, or translated into any human or computer language, in any form or by any means, electronic, magnetic, manual, or otherwise, or disclosed to third parties without the express written permission of:

Landmark Graphics Corporation

Building 1, Suite 200, 2101 CityWest, Houston, Texas 77042, USA P.O. Box 42806, Houston, Texas 77242, USA

Phone:713-839-2000 Help desk: 713-839-2200

FAX: 713-839-2401 Internet: www.lgc.com

Trademark Notice

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Note

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Contacting Support

Landmark operates Technical Assistance Centers (TACs) in Houston, Texas, Leatherhead, UK and Perth, Australia. Additional support is provided through district support offices around the world. If problems cannot be resolved at the district level, our escalation team is called to resolve your incidents quickly.

Support information is always available on the Landmark Graphics Support internet page located at:- http:\\www.lgc.com\customersupport.

Technical Assistance Centers

North America

7:30 am - 5:30 pm Central Standard Time Monday - Friday, excluding holidays

713-839-2200 (Houston, TX, USA) Toll Free 1-877-435-7542

(1-877-HELP-LGC)

Fax: 713-839-2168 (Houston, TX) Fax: 512-292-2200, 2220 (Austin, TX) Fax: 907-275-2655 (Anchorage, AK) Fax: 303-796-0807 (Denver, CO) Fax: 403-262-1929 (Calgary, Canada) Email: [email protected]

Latin America

(Spanish, Portuguese, English)

7:00 am - 5:00 pm Central Standard Time Local normal business hours

1-713-839-3405 (Houston,TX,USA) Fax: 713-839-3646

Email: [email protected] Toll Free from:

Argentina: 0800-800-5263 Brazil: 0800-891-0837 Chile: 800-201-898 Colombia: 01800-915-4743 Mexico: 001-888-438-1296 Peru: 0800-51634 Trinidad: 1-888-438-1296 Venezuela: 0-800-526-3627 Toll Free from local area: Ecuador (Quito) (02)226-1908

Europe, Africa, Middle East 8:00 am - 5:30 pm Local Time Monday - Friday, excluding holidays

44-1372-868686 (Leatherhead, UK) Fax: 44-1372-868601 (Leatherhead, UK) Fax: 44-1224-723260 (Aberdeen, UK) Email: [email protected]

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Asia, Pacific

8:00 am - 5:00 pm Local Time Monday-Friday, excluding holidays

61-8-9481-4488 (Perth, Australia) Toll-free 1-800-448-488 Fax: 61-8-9481-1580 Email: [email protected] Toll-Free from: China: 10-800-6100-253 Indonesia: 001-803-61284 Japan: 00531-61-0021 Malaysia 1800-803-687 New Zealand 0800-400-555 Philippines 1800-1611-0207 South Korea 00308-61-0046 Taiwan 00801-61-1350 Thailand 001-800-611-2784 Toll Free from local area:

Vietnam: 84-8-9191901

District Support Offices

Republic de Angola (Luanda) 8:00 am - 5:00 pm Local Time Monday - Friday, excluding holidays

1-817-493-5900 Fax: 1-817-493-560

Email: [email protected]

Argentina (Buenos Aires) 9:00 am - 6:00 pm

Local normal business hours

54-11-4312-8411 Toll Free 0800-800-5263 Fax: 54-11-4311-9566 Email: [email protected] Australia (Perth) 8:00 am - 5:00 pm Local Time Monday - Friday, excluding holidays

61-8-9481-4488 Toll Free 1800-448-488 Fax: 61-8-9481-1580 Email: [email protected]

Brazil (Rio de Janeiro) 8:00 am - 5:30 pm

55-21-3974-4000 or Toll Free 0800-891-0837 Fax: 55-21-3974-4002 Email: [email protected]

Brunei (Bandar Seri Bagawan) 8:30 am - 5:30 pm Local Time Monday - Friday, excluding holidays

67-3-233-5319

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Canada (Calgary)

7:30 am - 5:30 pm Mountain Time Monday-Friday, excluding holidays

Toll Free 1-877-435-7542 (1-877-HELP-LGC)

Fax: 403-262-1929 (Calgary, Canada) Fax: 713-830-2168 (Houston, TX) Email: [email protected]

Chile (TAO TAC, Houston, Texas) Local normal business hours

Toll Free 800-201-898 Fax: 1-713-839-3646 Email: [email protected]

Colombia (Bogota) 8:00 am - 5:00 pm

57-1-326-4000-57-1-326-6710 Toll Free 01800-915-4743 Fax: 57-1-326-6717 Email: [email protected] Ecuador (Quito) 8:00 am - 5:00 pm

59-32-226-1844 (ext 146)

Toll Free from Quito (02)226-1908 Fax: 59-32-226-2590

Egypt (Cairo)

9:30 am - 7:30 pm Local Time

Local Business Days, excluding holidays

20-2-517-3095

(ask for Landmark Technical Support) Fax: 20-2-353-2608

India (New Delhi)

91-11-622-1885 (c/o Samit Enterprises) Fax: 91-11-647-9246 Email:

Indonesia (Jakarta)

7:30 am - 4:30 pm Local Time Monday - Friday, excluding holidays

62-21-3003-9039 or Toll Free 011-803-61284 Fax: 62-21-3003-9088 Email: [email protected]

Malaysia (Kuala Lumpur) 8:30 am - 5:30 pm Local Time Monday - Friday, excluding holidays

603-2164-1121 or Toll Free 1800-803-687 Fax: 603-2164-1135 Email: [email protected] Mexico (Reynosa) 8:00 am - 6:00 pm

52-555-208-3533 52-555-208-3868

Toll Free 001-888-438-1296 Local Office Fax: 52-555-514-7646

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New Zealand (New Plymouth) 8:00 am - 5:00 pm Local Time Monday - Friday, excluding holidays

61-6-755-2318 Toll Free 0800-400-555 Fax: 64-6-755-2407 Email: [email protected] Nigeria (Lagos) 8:00 am - 5:00 pm Local Time Monday - Friday, excluding holidays

234-1-262-0765

People's Republic of China (Beijing) 9:00 am - 5:30 pm Local Time

Monday - Friday, excluding holidays

86-10-8486-4501 Toll Free 10-800-6100-253 Other Phone: 10-800-810-0209 Fac: 86-10-8486-4819 Email [email protected] or [email protected] Peru (Lima)

Toll Free 0800-51634 Fax: 1-713-830-3646 Email: [email protected]

Russia (Moscow)

7-095-755-8300

Taiwan

8:30 am - 5:30 pm Local Time Monday-Friday, excluding holidays

Toll Free 00801-61-1350 Fax:

Thailand (Bangkok) 8:00 am - 5:00pm Local Time Monday - Friday, excluding holidays

66-2-278-8100

Toll Free 001-800-611-2784 Fax: 66-2-278-8199

Trinidad & Tobago (TAO TAC, Houston, TX) 7:00 am - 5:00 pm Central Standard Time (Houston, TX)

Toll Free: 1-888-438-1296 Fax: 1-713-839-3646 Email: [email protected]

United Arab Emirates (Dubai) 7:00 am - 5:00 pm Local Time

+971-4-3313142

(ask for Landmark Technical Support) Fax: +971-4-3315837

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Helpful internet links are shown below.

Venezuela (Caracas) 8:00 am - 5:00 pm

58-212-953-0774

Toll Free 0-800-526-3627 Fax: 58-212-952-3845 Email: [email protected]

Vietnam (Ho Chi Minh City) 8:00 am - 5:00 pm Local Time Monday - Friday, excluding holidays

84-8-910-1901

Toll Free 84-8-9191901 Fax: 84-8-910-1902 Email: [email protected]

Name Website Address

Landmark Graphics home page http://www.lgc.com Landmark Graphics FTP Site ftp://ftp.lgc.com Oracle home page http://www.oracle.com FLEXlm license management software

home page

http://www.macrovision.com/products/ legacy_products/flexlm/index.html Microsoft SQL Server home page http://www.microsoft.com/sql/default.asp Adobe Acrobat Reader http://www.adobe.com

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Landmark WELLPLAN Training Manual

Introduction

... 25

What is WELLPLAN? ... 25

Training Course and Manual Overview ... 25

Licensing ... 26

The Engineer’s Data Model (EDM) Database

... 27

Overview... 27

Logging In To the Database... 28

Starting WELLPLAN ... 28

Describing the Data Structure... 29

Associated Components ... 32

Associated with Designs: ... 32

Associated with Cases: ... 33

Copying and Pasting Associated Items ... 33

Rules for Associating Components ... 34

Common Data ... 35

Data Locking... 36

How Locking Works ... 36

Simultaneous Activity Monitor (SAM) ... 38

Concurrent Use of Same Data By Multiple Users ... 39

How the Well Explorer Handles Concurrent Users ... 39

Same User on Same Computer ... 40

Multiple Users, Different Computers ... 40

Reload Notification ... 40

Importing and Exporting Data ... 42

Importing Data into the EDM Database ... 42

Importing EDM Well Data from Another Database ... 42

Importing a DEX File Into the Database ... 43

Exporting Data From the EDM Database ... 45

Exporting Data in XML Format ... 45

Exporting Well Data in DEX Format ... 46

Using Datums in EDM ... 48

Definition of Terms Associated With Datums ... 48

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WELLPLAN Training Manual Landmark

Changing the Datum ... 51

Using the Well Explorer

... 55

Overview... 55

Describing the Well Explorer ... 56

Components of the Well Explorer ... 57

The Tree ... 57

Associated Data Components ... 57

The Recent Bar ... 60

Displaying/Hiding the Well Explorer and Recent Bar ... 60

Refreshing the Well Explorer ... 60

Positioning the Well Explorer ... 61

Tracking Data Modifications ... 61

Drag and Drop Rules ... 62

Well Explorer Right-Click Menus ... 63

Working at the Database Level ... 64

New Company (Database Level) ... 64

Instant Case (Database Level) ... 65

Export (Database Level) ... 66

Import (Database Level) ... 66

Properties (Database Level) ... 66

Well Name (Database Level) ... 67

Wellbore Name (Database Level) ... 68

Refresh (Database Level) ... 68

Expand All (Database Level) ... 68

Collapse All (Database Level) ... 68

Working at the Company Level ... 68

New Project (Company Level) ... 69

New Attachment (Company Level) ... 70

Paste (Company Level) ... 70

Rename (Company Level) ... 70

Delete (Company Level) ... 70

Export (Company Level) ... 71

Properties (Company Level) ... 71

Expand All (Company Level) ... 74

Collapse All (Company Level) ... 74

Working at the Project Level ... 75

New Site (Project Level) ... 76

New Attachment (Project Level) ... 76

Copy (Project Level) ... 76

Paste (Project Level) ... 76

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Expand All (Project Level) ... 79

Collapse All (Project Level) ... 79

Working at the Site Level ... 79

New Well (Site Level) ... 80

New Attachment (Site Level) ... 81

Copy (Site Level) ... 81

Paste (Site Level) ... 81

Rename (Site Level) ... 81

Delete (Site Level) ... 81

Export (Site Level) ... 81

Properties (Site Level) ... 81

Expand All (Site Level) ... 84

Collapse All (Site Level) ... 84

Working at the Well Level ... 85

New Wellbore (Well Level) ... 85

New Attachment (Well Level) ... 86

Copy (Well Level) ... 86

Paste (Well Level) ... 86

Rename (Well Level) ... 86

Delete (Well Level) ... 87

Export (Well Level) ... 87

Properties (Well Level) ... 87

Expand All (Well Level) ... 92

Collapse All (Well Level) ... 92

Working at the Wellbore Level ... 92

New Design (Wellbore Level) ... 93

New Design/Case from OpenWells ... 94

New Attachment (Wellbore Level) ... 94

Cut (Wellbore Level) ... 94

Copy (Wellbore Level) ... 94

Paste (Wellbore Level) ... 94

Rename (Wellbore Level) ... 94

Delete (Wellbore Level) ... 95

Export (Wellbore Level) ... 95

Properties (Wellbore Level) ... 95

Expand All (Wellbore Level) ... 97

Collapse All (Wellbore Level) ... 97

Working at the Design Level ... 98

New Case (Design Level) ... 98

New Attachment (Design Level) ... 99

Copy (Design Level) ... 99

Paste (Design Level) ... 99

Rename (Design Level) ... 99

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Expand All (Design Level) ... 102

Collapse All (Design Level) ... 102

Working at the Case Level (WELLPLAN Only) ... 102

Open (Case Level) ... 103

Close (Case Level) ... 103

Clear Active Workspace (Case Level) ... 103

New Attachment (Case Level) ... 103

Copy (Case Level) ... 103

Paste (Case Level) ... 104

Rename (Case Level) ... 104

Delete (Case Level) ... 104

Export (Case Level) ... 104

Properties (Case Level) ... 104

Working With Design- and Case-Associated Components ... 108

About Associated Items and Well Explorer ... 108

Working With Catalogs ... 110

Creating a New Catalog ... 111

Copying a Catalog ... 112 Deleting a Catalog ... 112 Exporting a Catalog ... 112 Importing a Catalog ... 113 Opening a Catalog ... 113 Saving a Catalog ... 113 Closing a Catalog ... 114

Catalog Properties Dialog ... 114

Concepts and Tools

... 117

Overview... 117

Accessing Online Documentation and Tools... 118

Using the Main Window... 119

Using the Well Explorer ... 119

Using the Menu Bar ... 120

Working With Units... 122

Configuring Unit Systems ... 122

Converting MD to TVD, or TVD to MD ... 123

Converting Field or Cell Units ... 123

Defining Tubular Temperature Deration, Grade, Material and Class ... 125

Temperature Deration ... 125

Material ... 125

Tubular Grades ... 126

Class ... 127

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Enabling Toolbars ... 132

Using the Standard Toolbar ... 133

Using the Module Toolbar ... 133

Using the Graphics Toolbar ... 134

Using the Wizard Toolbar ... 134

Using Wellpath Plots and Schematics ... 135

Using Well Schematics ... 135

Viewing Wellpath Plots ... 136

Accessing Wellpath Plots ... 136

Printing and Print Preview ... 137

Configuring Plot Properties ... 138

Changing Curve Line Properties ... 138

Using Freeze Line ... 139

Using the Plot Properties Tabs ... 140

Accessing the Plot Properties Tabs ... 140

Changing the Scale ... 141

Configuring the Axis ... 141

Changing the Grid ... 142

Changing the Axis Labels ... 143

Changing the Font ... 143

Changing the Line Styles ... 144

Using Data Markers ... 145

Configuring the Legend ... 146

Changing the Plot Background Color ... 147

Using Libraries ... 148

What is a Library? ... 148

Using String Libraries ... 148

Creating or Deleting a String Library Entry ... 148

Retrieving a String From the String Library ... 149

Using Fluid Libraries ... 150

Importing, Exporting, Deleting, and Renaming a Fluid Library Entry ... 150

Exporting a Library ... 151

Using Workspaces ... 152

What is a Workspace ... 152

Applying a Workspace ... 152

Configuring a User Workspace ... 153

Using a Window ... 153

Using Window Panes ... 154

Using Tabs ... 155

Saving the User Workspace Configuration ... 157

Using Data Status Tooltips and Status Messages ... 158

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Entering Case Data ... 162

Defining the Hole Section Geometry ... 162

Hole Section Editor Menu ... 163

Defining a Work String ... 163

Managing Wellpath Data ... 166

Importing Wellpath Files ... 166

Entering Wellpath Data ... 167

Setting Wellpath Options ... 168

Viewing Wellpaths w/Tortuosity ... 168

Viewing Wellpath w/Interpolation ... 169

Defining the Active Fluid and Fluid Properties ... 169

Defining Drilling Fluids ... 169

Specify Circulating System Equipment ... 171

Specifying Circulating System for Cementing Analysis ... 172

Specifying Pore Pressure Data ... 173

Specifying Fracture Gradient Data ... 173

Specifying Geothermal Gradient Data ... 174

Defining String Eccentricity ... 175

Torque Drag Analysis

... 177

Overview... 177

Workflow ... 178

Introducing Torque Drag Analysis ... 181

Starting Torque Drag Analysis ... 181

Available Analysis Modes ... 182

Defining the Case Data ... 184

Defining Operating Parameters ... 185

Specifying Weight Indicator Corrections, Analytical Models and Reporting of Mechanical Limitations ... 185

Enabling Sheave Friction Corrections ... 185

Why Use Bending Stress Magnification Factor? ... 186

Why Use the Stiff String Model? ... 186

Including Viscous Drag Calculations ... 187

Specifying Multiple Fluids or Surface Pressure ... 187

How does Fluid Flow Change the Forces and Stresses on the Workstring? ... 188

How Does Surface Pressure Change the Forces And Stresses On the Workstring? 189 Using Standoff Devices ... 189

Calibrating Coefficients of Friction Using Field Data... 191

Starting the Calibrate Friction Analysis Mode ... 191

Recording Actual Load Data ... 192

Calibrating Coefficients of Friction ... 192

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Analyzing Drag Chart Results ... 196

Tension Point Chart ... 196

Torque Point Chart ... 197

Using the Sensitivity Plot ... 198

Analyzing Critical Measured Depths... 200

Start Normal Analysis ... 200

Defining Operating Conditions ... 201

Analyzing Normal Analysis Results ... 201

Analyzing Normal Analysis Results Using Plots ... 202

Using Tables to Analyze Results ... 206

Analyzing Results Using Reports ... 208

Analysis Mode Methodology... 209

Normal Analysis ... 209

Calibrate Friction Analysis ... 211

Drag Chart Analysis ... 212

Top Down Analysis ... 214

Supporting Information and Calculations... 217

Additional Side Force Due to Buckling ... 217

Sinusoidal Buckling Mode ... 217

Helical Buckling Mode ... 217

Axial Force ... 218

Buoyancy Method ... 219

Pressure Area Method ... 219

Bending Stress Magnification (BSM) ... 220

Buoyed Weight ... 221

Critical Buckling Forces ... 222

Straight Model Calculations ... 223

Curvilinear Model ... 223

Loading and Unloading Models ... 224

Drag Force Calculations ... 226

Fatigue Calculations ... 228

Establish A Fatigue Endurance Limit For The Pipe ... 229

Derate The Fatigue Endurance Limit For Tension ... 229

Friction Factors ... 232

Models ... 233

Pipe Wall Thickness Modification Due to Pipe Class ... 233

Sheave Friction ... 234

Side Force for Soft String Model ... 235

Soft String Model ... 237

Stiff String Model ... 237

Stress ... 239

Von Mises Stress ... 239

Radial Stress ... 240

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Bending Stress ... 240

Buckling Stress ... 240

Axial Stress ... 241

Stretch ... 242

Stretch due to axial load ... 242

Stretch due to buckling ... 242

Stretch due to ballooning ... 243

Tortuosity ... 244 Torque ... 244 Twist ... 246 Viscous Drag ... 247 References... 250 General ... 250

Bending Stress Magnification Factor ... 250

Buckling ... 250

Fatigue ... 251

Sheave Friction ... 251

Side Force Calculations ... 251

Stiff String Model ... 252

Hydraulics Analysis

... 253

Overview... 253

Workflow ... 254

Introducing Hydraulic Analysis... 257

Starting Hydraulics Analysis ... 257

Optimizing Bit Hydraulics... 261

Using Graphical Analysis Mode ... 261

Entering Pump Specifications ... 261

Analyzing Results ... 262

Numerical Optimization ... 269

Determining the Minimum Flow Rate... 272

Starting the Hole Cleaning Operational Analysis ... 272

Entering Analysis Data ... 273

Analyzing Results Using Plots ... 273

Analyzing Results Using the Operational Report ... 276

Determining the Maximum Flow Rate ... 277

Starting Annular Velocity Analysis Mode ... 277

Defining Pump Rates ... 278

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Starting the Pressure: Pump Rate Range Analysis Mode ... 282

Defining the Pump Rate Range ... 282

Specifying the Nozzle Configuration ... 284

Specifying Depths to Calculated ECD ... 285

Using the Pressure Loss Plot ... 286

Using the Pressure Loss Report ... 287

Fine Tuning Hydraulics ... 288

Starting Pressure Pump Rate Fixed Analysis Mode ... 288

Defining the Pump Rate to Analyze ... 288

Calculating a Tripping Schedule... 293

Starting Swab/Surge Tripping Schedule Analysis ... 293

Defining Analysis Constraints ... 293

Using Reports to Analyze Results ... 294

Analyzing Pressures and ECDs While Tripping... 296

Starting Swab/Surge Pressure and ECD Analysis Mode ... 296

Defining Operations Constraints ... 296

Using Plots to Analyze Results ... 297

Using Reports to Analyze Results ... 298

Backreaming Rate (Maximum) Calculation ... 300

Bingham Plastic Rheology Model ... 300

Bit Hydraulic Power ... 304

Bit Pressure Loss Calculations ... 305

Derivations for PV, YP, 0-Sec Gel and Fann Data ... 305

ECD Calculations ... 306

Graphical Analysis Calculations ... 307

Hole Cleaning Methodology and Calculations ... 307

Bit Impact Force ... 314

Nozzle Velocity ... 315

Optimization Planning Calculations ... 315

Optimization Well Site Calculations ... 316

Power Law Rheology Model ... 319

Pressure Loss Analysis Calculations ... 324

Pump Power Calculations ... 325

Pump Pressure Calculations ... 326

Shear Rate and Shear Stress Calculations ... 326

Swab/Surge Calculations ... 327

Tool Joint Pressure Loss Calculations ... 329

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Bingham Plastic Model ... 331

Coiled Tubing ... 331

Hole Cleaning ... 331

Herschel Bulkley Model ... 332

Optimization Well Site ... 332

Power Law Model ... 332

Rheology Thermal Effects ... 332

Surge Swab ... 333

Tool Joint Pressure Loss ... 333

Well Control Analysis

... 335

Overview... 335

Workflow ... 336

Introducing Well Control Analysis... 338

Starting Well Control Analysis ... 338

Calculating the Expected Influx Volume... 341

Starting Expected Influx Volume Analysis Mode ... 341

Specify Choke and Kill Line Use ... 341

Defining the Circulating Temperature Profile ... 342

Determining the Type of Kick ... 343

Estimating Influx Volume ... 344

Influx Volume Estimation Results Tab ... 347

Using Plots ... 348

Circulating the Kick... 349

Specifying Kill Method, and Choke/Kill Line Data ... 349

Specify Choke and Kill Line Data ... 349

Select Kill Method and Enter Operational Data ... 350

Specify Kill Rate and Kick Data ... 350

Using Plots ... 351

Animation ... 357

Generating a Kill Sheet... 359

Specify Kill Method, Operational Data, Slow Pumps and Choke/Kill Line Use ... 359

Specify Choke and Kill Line Data ... 359

Selecting Kill Method and Entering Operational Data ... 359

Specifying Slow Pump Data ... 360

Entering Kill Sheet Data ... 360

Specifying Kick Analysis Parameters ... 360

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General Assumptions and Terminology ... 364

Initial Influx Volume ... 364

Influx Properties Assumptions ... 364

Influx Annular Volume and Height ... 365

Choke Pressure and Influx Position ... 365

Kill Methods ... 365

Expected Influx Volume ... 366

Kick Tolerance ... 367

Kill Sheet ... 371

Allowable Kick Volume Calculations ... 372

Estimated Influx Volume and Flow Rate Calculations ... 372

Gas Compressibility ... 373

Influx Circulation Model for Kick While Drilling or After Pump Shutdown ... 376

Influx Circulation Model for Swab Kicks ... 380

Kick Classification ... 385

Kick While Drilling ... 385

Kick After Pump Shutdown ... 386

Swab Kick ... 386

Kick After Pump Shut Down Influx Estimation ... 386

Kick While Drilling Influx Estimation ... 389

Kill Sheet ... 392

Pressure at Depth of Interest ... 396

Pressure Loss Analysis ... 396

Steady State Circulation Temperature Model ... 397

Viscosity and Compressibility of Methane ... 400

References... 403

General ... 403

Estimated Influx Volume and Flow Rate ... 403

Gas Compressibility (Z Factor) Model Calculations ... 403

Steady State Temperature ... 403

Surge Analysis

... 405

Overview... 405

Workflow ... 407

Introducing Surge Analysis ... 410

What is the Surge Module? ... 410

What is the Difference Between a Transient and Steady-State Model? ... 410

When Should I use the Transient Surge Model? ... 411

Starting Surge Analysis ... 412

Defining Formation Properties ... 414

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Using Standoff Devices ... 415

Analyzing Surge and Swab Operations ... 416

Selecting the Surge/Swab Analysis Mode ... 416

Defining Analysis Parameters ... 417

Analyzing Surge and Swab Analysis Results ... 418

Using Operation Plots ... 418

Using the Miscellaneous Plots ... 424

Analyzing Results Using the Report ... 426

Analyzing Reciprocating Operations... 427

Selecting the Reciprocation Analysis Mode ... 427

Using Operation Plots ... 429

Using the Miscellaneous Plots ... 436

Analyzing Results Using the Report ... 438

Methodology ... 439

Pressure and Temperature Behavior of Water Based Muds ... 439

Viscosity Correlations of Oil Based Muds ... 440

Surge Analysis ... 440

Two Analysis Regions ... 440

Connecting the Coupled-Pipe/Annulus and the Pipe-to-Bottomhole Regions ... 443

Open Annulus Calculations ... 444

Mass Balance ... 444

Momentum Balance ... 444

Coupled Pipe Annulus Calculations ... 445

Pipe Flow ... 445

Annulus Flow ... 446

Pipe Motion ... 446

Closed Tolerance ... 447

References... 453

Transient Pressure Surge ... 453

Validation ... 453

Pipe and Borehole Expansion ... 453

Frictional Pressure Drop ... 453

Pressure and Temperature Fluid Property Dependence ... 454

Cementing-OptiCem Analysis

... 455

Overview... 455

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Specify the Volume Excess % ... 459

Defining the Cement Job ... 460

Defining the Cement Job Fluids ... 460

Defining Spacers ... 460

Defining Cement Slurries ... 461

Specify the Standoff or Calculate the Centralizer Placement ... 461

Defining the Cement Job ... 462

Defining Temperatures, Depths of Interest and Offshore Returns Information ... 463

Specifying Additional Analysis Parameters ... 464

What is the Circulating Pressure Throughout the Cement Job? ... 465

Is There Free Fall? ... 467

What is the Surface Pressure? ... 467

Automatically Adjusting the Flowrate ... 468

Using Foamed Cement ... 471

References... 476

Critical Speed

... 477

Critical Speed Course Overview... 477

Workflow ... 478

Introducing Critical Speed Analysis ... 479

What is the Critical Speed Module? ... 479

Why Use the Critical Speed Module? ... 479

Critical Speed Limitations ... 480

Using Critical Speed ... 481

Starting the Critical Speed Module ... 481

Determining Critical Rotational Speeds ... 483

Specifying the Boundary Conditions ... 484

Specifying the Mesh Zone ... 484

Analyzing the Results ... 485

What are the Critical Rotational Speeds? ... 485

Non-Converged Solutions ... 486

Where in the BHA are the Large Relative Stresses Occurring? ... 487

What Kind of Stress is Causing the Large Relative Stress? ... 488

How Do I View the Large Relative Stress at Any Position on One Plot? ... 489

Structural Solution ... 491

Vibrational Analysis ... 491

Mass Matrix ... 494

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Bottom Hole Assembly

... 499

Overview... 499

Workflow ... 500

Introducing Bottom Hole Assembly Analysis ... 501

What is the Bottom Hole Assembly Module? ... 501

Why Should I Use the Bottom Hole Assembly Module? ... 501

Bottom Hole Assembly Module Limitations ... 502

Starting Bottom Hole Assembly Analysis ... 502

Analyzing a Static Bottom Hole Assembly ... 505

Defining Analysis Parameters for Static Analysis ... 505

Drillahead Solution ... 505

Specifying the Mesh Zone ... 506

Analyzing Results for the Static (in-place) Position ... 506

Using the Quick Look Section of the BHA Analysis Data Dialog ... 506

Using Plots ... 508

Using Predicted Plots ... 510

Using the BHA Report ... 515

Predicting How a Bottom Hole Assembly Will Drill Ahead... 521

Defining Analysis Parameters for Drillahead Analysis ... 521

Analyzing Drillahead Results ... 522

Using the BHA Analysis Data Quick Look Results ... 522

Analysis Methodology ... 525

Three Fundamental Requirements of Structural Analysis ... 525

Defining the Finite Element Mesh ... 525

Compute the Local Stiffness Matrix and the Global Stiffness Matrix ... 526

Degrees of Freedom ... 531

Boundary Conditions ... 531

Constructing the Wellbore and Bottom Hole Assembly Reference Axis ... 534

Calculating the Solution ... 535

Bit Tilt and Resultant Side Force ... 535

Drillahead Solutions ... 538

Bit Coefficient ... 539

Formation Hardness ... 540

References... 541

Stuck Pipe Analysis

... 543

Overview... 543

Workflow ... 544

Introducing Stuck Pipe Analysis... 546

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Adding a Jar to the Workstring ... 548 Determining the Location of the Stuck Point ... 549 Defining Analysis Parameters and Viewing Results of Stuck Point Analysis ... 549 Determining the Surface Measured Weight Required to Activate the Jar... 550 Describing the Jar Analysis Mode ... 550 Selecting the Jar Analysis Mode ... 551 Defining Analysis Parameters and Viewing Results of Jar Analysis ... 551 Analyzing the Output Section ... 552 Determining if the Required Measured Weight Yields the String... 554 Describing the Yield Analysis Mode ... 554 Selecting the Yield Analysis Mode ... 554 Defining Analysis Parameters and Viewing Results of Yield Analysis ... 554 Analyzing the Output ... 555 Determining if the Required Force at Backoff Connection Can be Achieved ... 558 Describing the Backoff Analysis Mode ... 558 Selecting the Backoff Analysis Mode ... 558 Defining Analysis Parameters and Viewing Results of Backoff Analysis ... 559 Analyzing the Output ... 559 Supporting Information and Calculations... 562 Stuck Point Algorithm ... 562 Stuck Pipe Yield Analysis Algorithm ... 562 Stuck Pipe Jar Analysis Calculations ... 564 Stuck Pipe Backoff Analysis Calculations ... 566 References... 567

Notebook

... 569 Overview... 569 Starting Notebook ... 569 Notebook Analysis Modes ... 570 Miscellaneous Mode ... 572 Linear Weight ... 572 Blockline Cut Off Length ... 573 Leak Off Test ... 573 Fluids Mode ... 574 Mix Fluids ... 574 Dilute /Weight Up ... 574 Fluid Compressibility ... 575 Hydraulics Mode... 576 Pump Output ... 576 Annular ... 576 Pipe ... 577 Nozzles ... 578 Buoyancy ... 578

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Maximum String Length ... 579 String Weight ... 580 Elongation ... 580 Volumes and Heights ... 581 Lag Times ... 582 Spot a Pill ... 583 Block Line Work ... 584 Rig Capacity ... 584 Calculations ... 586 Block Line Cut Off Length ... 586 Dilute/Wt Up Fluid ... 586 Fluid Buoyancy ... 586 Fluid Compressibility ... 587 Leak Off Test ... 587 Mix Fluids ... 587 Pump Output ... 588 Nozzle Area ... 588

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Chapter

Introduction

What is WELLPLAN?

WELLPLAN is a drilling engineering software system to assist with solving engineering problems during the design and operational phases of drilling and completing wells. WELLPLAN is comprised of several modules including Torque Drag Analysis, Hydraulics, Well Control, Surge, OptiCem-Cementing, Bottom Hole Assembly, Critical Speed, Stuck Pipe, and Notebook.

WELLPLAN can be used in the office or at the well site. WELLPLAN can be installed on a network for use by several individuals, or on an individual “stand alone” computer. Regardless of the installation location or type, data can be transferred between installations. In addition, WELLPLAN is integrated with other LANDMARK software and data can be shared between a variety of LANDMARK software packages. Refer to Chapter 2, “The Engineer’s Data Model (EDM) Database” on page 27 for more information.

Training Course and Manual Overview

The purpose of this manual is to provide you a reference for entering data and performing an analysis during the class. Perhaps more importantly, you can refer to it after the class is over to refresh your memory concerning analysis steps. This manual contains technical information concerning the methodology and calculations used to develop this software. If you require more technical information than what is presented in this manual, please ask you instructor. The on-line help is very useful, and may assist you while using the software. This training class is designed to be flexible to meet the needs of the attendees. In this manual, there may be information regarding a module that you do not have.

The training course begins with a quick introduction. Following the introduction, time will be spent covering the concepts and features common to all WELLPLAN modules. In this section you will learn how to navigate the system, enter data, and produce output. After these concepts and features have been reviewed, you will begin to look at the

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Chapter 1: Introduction

Surge, OptiCem-Cementing, Bottom Hole Assembly, Critical Speed, Stuck Pipe, and Notebook.)

Licensing

FLEXlm is a licensing method common to all Landmark products. It provides a single licensing system that integrates across PC and network environments. FLEXlm Licensing files and FLEXlm Bitlocks are supported for Landmark Drilling and Well Services applications. Please refer to the EDT Summary Level Release Notes for more information.

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Chapter

The Engineer’s Data Model (EDM)

Database

Overview

Many of Landmark’s drilling applications use a common database and data structure—the Engineer’s Data Model (EDM) database—to support the different levels of data that are required to use Landmark’s drilling and production software.

The Engineer’s Desktop is Landmark’s Drilling, Well Services, Production, and Economics integration platform. The Engineer’s Desktop applications access the EDM database. EDM provides a common database schema that allows for common data access, enables naturally integrated engineering workflows, and reduces data entry duplication across applications.

A significant advantage of the EDM database is improved integration between Landmark's Drilling and Well Services products, and the Production and Economics products. Integrated Engineering

applications on EDM allow for improved Plan vs. Actual comparisons and complete store of design iterations from Prototype to Plan to Actual.

In this chapter, you will be introduced to: Logging in to the database

Data structure Common data Data locking

Importing and exporting data

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Chapter 2: The Engineer’s Data Model (EDM) Database

Logging In To the Database

Any Landmark drilling software using the Engineer’s Data Model (EDM) will require you to login. This dialog is used to select the database and to provide a user id and password.

Starting WELLPLAN

You can start WELLPLAN in two ways:

z Use the Start Menu. Select WELLPLAN using Landmark Engineer’s Desktop 2003.11 > WELLPLAN.

z Double-click any desktop shortcut you have configured.

The following login screen appears when you launch WELLPLAN:

Select the database you want to use from the drop-down list.

User will default to the

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Describing the Data Structure

The EDM database has a hierarchical data structure to support the different levels of data that are required by different drilling suite applications. EDM uses the following hierarchical levels.

Hierarchical Level Description

Database The Database is the highest level in the Well Explorer hierarchy. You can only work in one database at a time. Refer to “Working at the Database Level” on page 64 for more information.

Company Company is the second highest data level in the hierarchy. You can define several

companies within the database you are using. Each company must have a unique name. If you work for an operator, most likely you may have only one company. If you work for a service company, you may have several companies. Refer to “Working at the Company Level” on page 68 for more information. Company Project Site Well Design Case Wellbore Company Database

Hierarchical database structure of the EDM database.

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Project Project is the data level directly beneath company and each project within a company must have a unique name. A project can be thought of as a field or as a group of sites. A project has one system datum (mean sea level, lowest astronomical tide, etc.) that is used to define 0 TVD for the project. Within the project, wellbores can be referenced to the project level system datum or to additional datums specified at the well level. Refer to“Using Datums in EDM” on page 48 or “Working at the Project Level” on page 75 for more information.

Site Site is the data level directly beneath the Project level and each site within a project must have a unique name. A site is a collection of one or more wells that are all referenced from a local coordinated system centered on the site location. A site can be a single land well, an offshore sub-sea well, a group of well drilled from an onshore pad, or a group of wells drilled from an offshore platform. Refer to “Working at the Site Level” on page 79 for more information.

Well Well is the data level directly beneath the Site level and each well within a site must have a unique name. A well is simply a surface location. A well can have more than one wellbore associated with it. For example, there may be the original wellbore with one or more sidetracks tied on to it at different kick-off depths. Refer to “Working at the Well Level” on page 85 for more information. Wellbore Wellbore is the data level directly beneath the

Well level and each wellbore within a well must have a unique name. A wellbore is a compilation of one or more sections

originating at the surface and continuing to a depth. A wellbore can be the original well drilled from the surface or a sidetrack drilled from a parent wellbore. If a well has an original hole and two sidetracks, the well has three wellbores. Refer to “Working at the Wellbore Level” on page 92 for more information.

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Design Design is the data level directly beneath the Wellbore level and each design within a wellbore must have a unique name. A design can be thought of as a design phase.

Associated with each design are a pore pressure group, a fracture pressure group, a temperature gradient and a wellpath. A design may have several cases associated with it, but each case will use the same pore pressure group, fracture pressure group, temperature gradient and wellpath. A design can be categorized as prototype, planned or actual. You may have several different versions of prototype designs. For example, assume the geologist wants to analyze two different formation fracture gradients. This could easily be accomplished by having two prototype designs that are identical except for the fracture gradient group. Landmark’s StressCheck, Casing Seat and COMPASS applications routinely use designs. Refer to “Working at the Design Level” on page 98 for more information.

Case (WELLPLAN only) Case is the data level directly beneath the Design level and each case within a design must have a unique name. A case can be thought of as a snapshot of the state of the well. For example, you may use two cases to analyze the affects of varying the mud weight or changing the BHA. Associated with each case are an assembly, a hole section and one or more fluids. Cases are commonly used in Landmark’s WELLPLAN application. StressCheck and COMPASS do not use cases.

Note: The Event hierarchy...

In the OpenWells, PROFILE, and Data Analyzer well explorer, you will find the Event level directly beneath the Wellbore level. For more information about Events, refer to the OpenWells online help.

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Associated Components

Additional data components that can be associated ("linked") with Designs and Cases include Wellpaths, Pore Pressure Groups, Fracture Gradient Groups, Geothermal Gradient Groups, Hole Section Groups, Assemblies, Fluids, and Catalogs. These components are used to define the drilling problem that you want to analyze.

All associated items, with the exception of fluids, are automatically created and associated by Well Explorer (you cannot manually create or associate these items) with the design or case. Fluids can be

created/associated in WELLPLAN only, using the Fluid Editor. Catalogs function differently than the other components, primarily because Catalogs are not associated with a Design or Case. Catalogs are used as a selection list to design a casing, tubing, liner, or drillstring. Refer to “Working With Catalogs” on page 110 for more information. There are several additional data components that are associated with Designs or Cases. These are:

Associated with Designs:

Wellpaths

A wellpath is a series of survey tool readings that have been observed in the same wellbore and increase with measured depth. All Cases within the same design use the same wellpath.

Pore Pressure Groups

A Pore Pressure group is a set of pore pressures that define the pore pressure regime over a depth range from surface to some vertical depth. All Cases within the same design use the same pore pressure.

Fracture Gradient Groups

A Fracture Gradient is a set of fracture pressures that define the fracture gradient regime over a depth range from surface to some vertical depth. All Cases within the same design use the same fracture gradient.

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Geothermal Gradient Groups

A Geothermal Gradient is a set of undisturbed earth temperatures that define the temperatures over a depth range from the surface to some vertical depth. All Cases within the same design use the same geothermal gradient.

Associated with Cases:

Hole Section Groups

A Hole Section defines the wellbore as the workstring would see it. For example, a hole section may contain a riser, a casing section, and an open hole section. A hole section can also have a tubing section or a drill pipe section depending on the situation. Multiple cases may use the same hole section.

Assemblies

An Assembly defines the workstring. There are several types of workstrings, including coiled tubing, casing, drillstrings, liners, and tubing strings. Multiple cases may use the same assembly.

Fluids

A Fluid defines a drilling, cementing, or spacer fluid. A Fluid is linked to a Case and a Case can have more than one fluid linked to it. One fluid can be linked to multiple cases.

Copying and Pasting Associated Items

All of these associated items, with the exception of fluids, are

automatically created and associated ("linked") by the Well Explorer to the design or case. (You cannot manually create or link these items.) Fluids can be created/linked in WELLPLAN only, using the Fluid Editor.

All these items are visible in Well Explorer so that you can copy and paste them using the right-click menu. For example, when you copy a wellpath and paste it into a different design, the wellpath that currently exists for the target design is deleted. Well Explorer replaces the old

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Again, fluids are the exception. Only the WELLPLAN Fluid Editor can delete fluids, so after pasting a fluid, the original fluid still exists. The original fluid is no longer linked to anything. This can’t be seen in Well Explorer, but WELLPLAN can access this. Note that if the destination case, or the fluid you are trying to replace is locked, a message appears and the paste is not completed.

Rules for Associating Components

The rules for associating components are listed below.

For Definitive Surveys, Pore Pressure Groups, Fracture Gradient Groups, Geothermal Gradient Groups, Assemblies, and Hole Sections:

• Each component can only be associated with one Design or Case.

• When one component is copied and pasted, an actual copy is made.

• When one component is pasted, the component it replaces will be deleted (unless it is locked).

• If the destination for the paste is locked (Design or Case) or the item to be replaced is locked, a message appears and the paste is not completed.

• If the design is locked, all it’s associated items are also locked.

For Fluids:

• When a fluid is copied and pasted, an actual copy is made. • When a fluid is pasted, the one is replaces will NOT be deleted. • Fluids can only be deleted using the Fluid Editor in

WELLPLAN.

• If the destination case is locked or the fluid to be replaced is locked, a message appears and the paste is not completed.

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Common Data

Common data stored in the EDM database and available for use by

StressCheck, CasingSeat, WELLPLAN, OpenWells, and COMPASS in

database mode include: • Unit system • Pipe catalog • Connections catalog • Pore pressure • Fracture Gradient • Temperature Gradient • Surveys

• All fields in Well Explorer Properties dialogs

• General data, such as Well Name, Well Depth, Vertical Section information

Note: Several additional fields are common to two or more applications, but not all.

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Data Locking

You can prevent other people from making changes to data by locking data at various levels and setting passwords. Users can only open the data item in read-only mode; to keep changes, they will have to use Save As or Export.

How Locking Works

You can lock Company properties only, or you can lock properties for all levels below Company (Project, Site, Well, Wellbore, Design, and Case). Passwords can be set to prevent unlocking.

By default, no passwords are set, and the "locked" check box on all Properties dialogs can be toggled on and off at will with no security to prevent users from doing something they shouldn’t.

In the Well Explorer, if a data item is locked a small blue "key" appears in the corner of its icon. When you open a locked data item, you will see the message "This Design is locked and therefore Read-Only. Changes to this Design will not be saved to the database. To keep your changes, use the Save As or Export options."

Locking Company Properties

In the Properties dialog for the company whose data you want to protect, there are two buttons, Company Level and Locked Data, and a

checkbox, Company is locked.

When you click the Company Level button, you are prompted to set a password to protect Company properties (and only the Company properties). This password will then be required if a user wants to "unlock" company properties and make changes.

Once the password is set, toggle the Company is locked checkbox on to lock the company properties and prevent unauthorized changes to the data.

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required if a user wants to "unlock" any level below the company (projects, sites, wells, wellbores, designs, and cases).

All levels are locked individually—that is, you can lock a Well, but this doesn’t mean that anything below it is locked.

Once the Locked Data password is set, you can lock properties for any data level below Company and prevent unauthorized changes to the data. Open the Properties dialog for the data level you want to lock and toggle the "locked" checkbox on. (For example, to lock a Wellbore, open the Wellbore Properties dialog and toggle Wellbore is locked on.)

Note: Locked Designs...

When a design is locked, all associated items (Pore Pressure, Fracture Gradient, Geothermal Gradient, and Wellpath) are locked with it.

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Simultaneous Activity Monitor (SAM)

The 2003.11 release of EDM (the Engineer's Data Model) supports full concurrency for multiple applications using the same data set through the Simultaneous Activity Monitor (SAM). For in-depth information on SAM, refer to the EDM Administration Utility help.

If the Simultaneous Activity Monitor has not been configured, the following message will appear: "WELLPLAN could not connect to the SAM server. Please verify that the settings are configured correctly in the administration utility, and that the SAM server is running."

The Simultaneous Activity Monitor consists of a Messaging Server that notifies the user with an open application of all data currently open in other applications. The SAM icon appears in the application Status Bar as follows:

If a data item is open, an icon will appear as follows:

z A red SAM icon indicates that one or more users on other PC’s have this item open and the current user is restricted to read-only access.

A blue SAM icon indicates that one or more users on the current PC have this item open but the current user still has full read-write access. A user must be careful when making changes to the date though this method enables data to automatically flow between applications.

Icon Message Description

A green SAM icon in the status bar indicates that the Messenger service is active.

A blue SAM icon with a red X on it indicates that the Messenger Service is not currently active.

No Icon When no icon appears in the application status bar this indicates that the Simultaneous Activity Monitor has not been configured for the application.

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Concurrent Use of Same Data By Multiple Users

The 2003.11 release supports concurrency for multiple users on the same data set. The Simultaneous Activity Monitor (SAM) is the service used to regulate concurrent access to the EDM database.

z By default, the SAM server is enabled and connected and you will see a green "SAM" icon in the status bar of your application.

z If the SAM service is configured but not connected, the "SAM" icon will appear with a red "X" drawn through it. Consult your System Administrator.

z If the SAM service is not configured, there will be no SAM icon in the status bar.

For in-depth information on SAM, refer to the EDM Administration

Utility help.

A good practice for any multi-user environment is to frequently use the F5 refresh key to refresh the Well Explorer contents. Data updates (e.g., inserts, updates, deletions) are not always automatically recognized in other EDT sessions and simultaneously run EDT applications.

How the Well Explorer Handles Concurrent Users

Basically, the Well Explorer and the Simultaneous Activity Monitor handle concurrency like this: If a user on a different machine has a Design open (first one to open the Design gets it in Read/Write mode), then all other users can only open that Design in Read-Only mode. If no one on any other machine has Read/Write access to the Design, then you get Read/Write access.

This is the SAM icon:

The red "SAM" icon indicates that one or more users on other PC’s have this item open and you are restricted to opening it in Read-Only mode. You cannot save any changes to the database, but you can use Save As and rename the item.

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These SAM icons will appear on a Design (COMPASS, WELLPLAN, StressCheck, CasingSeat) or a Well (OpenWells) in the Well Explorer.

Same User on Same Computer

If the same user has a Design open in one EDT application and then opens the same Design in another EDT application on the same machine, the blue "SAM" icon will appear in the Well Explorer of the second application. This indicates that this user has the Design "locked for use in Read-Write mode", and has it open in more than one

application. However, because it IS the same user, he/she can Save changes to the database made from either application.

Multiple Users, Different Computers

The first user to open a Design or Case in that well gets control, and the Design or Case is then "locked for use in Read/Write mode." A red "SAM" icon indicates that more than one user is working with the Design or Case at the same time. However, only the first user can make changes; all other users open the Design or Case in Read-Only mode. They can Save As, but not Save.

After the user who had access to the Design or Case in Read/Write mode closes the Design or Case, the red "SAM" icon goes away, and the Design or Case is available again. Read-only users will have to close the Design or Case and re-open to gain control.

(WELLPLAN only) A user can save Cases under a Design that is currently "locked for Read/Write use" by someone else.

Reload Notification

If you are working with any of the data in the following list, and a user with read/write privileges saves changes to the database, you will receive a notification indicating that another user has changed the data you are working with.

You will have the opportunity to use the changes saved to the database by the other user. You will also have the opportunity to save the data you are working with using the Save As option. If you do not save your data using Save As, your changes will be overwritten by those made by the

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changes you make are only stored in memory and are not written to the database unless you save your data using Save As.

Items that are refreshed in this manner are: Design, Definitive Survey (Wellpath), Pore Pressure, Fracture Gradient, Geothermal Gradient, Assemblies (Casing Scheme)

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Importing and Exporting Data

WELLPLAN provides you with EDM database import and export

functionality, as well as flat file import and export functionality.

Importing Data into the EDM Database

You can import data from one EDM database into another EDM database, or you can import a DEX file.

Importing EDM Well Data from Another Database

To import well data from one EDM database to another, follow these steps:

1. In the Well Explorer, select the EDM database canister. 2. From the Well Explorer right-click menu, select Import. The

following dialog box opens:

Note: Importing WELLPLAN and COMPASS legacy data...

WELLPLAN and COMPASS legacy data must be imported into the EDM database using the Data Migration Toolkit. See the PDF file "Using the Data Migration Toolkit" in the Landmark Engineer’s Desktop 2003.11\Documentation folder for details.

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3. Select the .XML file containing the well data you want to import, and click Open. (Well data can be saved in .XML format using the Export command in the Well Explorer; see page 45 for details.)

4. The well data will be imported into the database.

Importing a DEX File Into the Database

To import a DEX file into the EDM database, follow these steps: 1. Select File > Data Exchange > Import. The following dialog box

opens:

Note: XML file naming...

EDM Data Transfer File imports are not supported from paths containing apostrophes or filenames containing apostrophes. Make sure that you do not use apostrophes in filenames or directory names.

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2. Specify the filename for the well information in DEX format you want to import, and click Open. The following dialog appears.

3. Use the arrow buttons to move the desired data items into the lower list box. Single arrow buttons move the highlighted file(s). Double arrow buttons move all files. (Use the upward facing arrows to remove items from the desired selection.)

4. Click OK to start the import.

5. When you are ready to save the changes to the database, select File > Save. The Save As dialog opens, allowing you to specify where in the hierarchy to place the newly imported design, and to name the design. Click Save. The newly created design will appear in the Well Explorer tree.

Note: Data imported to memory...

The data will be imported into memory and displayed in the main window. The data has not yet been saved to the database. You may make changes now, if you wish.

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Exporting Data From the EDM Database

You can export well data from the EDM database in .XML format; this data can then be imported directly into another EDM database. You can also export data in DEX format.

Exporting Data in XML Format

To export well data for import into another database, follow these steps:

1. In the Well Explorer, select the company, project, site, well,

wellbore, design, or case whose data you want to export and right-click to open the pop-up menu. Select Export. The following dialog box opens:

2. Specify a filename for the information you want to export, and click Save. The parent and child data, and any linked pore pressures, fracture gradients, etc. will be saved to the .XML file you specified.

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Exporting Well Data in DEX Format

1. Select File > Data Exchange > Export from the main menu. The following dialog box opens:

2. Specify a filename for the well information you want to export in DEX format, and click Save. If this is the first time you have saved DEX data using the specified filename, the export is complete at this point. If the specified file already existed, the following dialog opens to allow you to specify which objects you want to export.

3. Use the arrow buttons to move the desired data items into the lower list box. Single arrow buttons move the highlighted file(s). Double arrow buttons move all files. (Use the upward facing arrows to remove items from the desired selection.)

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4. Click OK to start the export. The data will be saved to the .dxd file you specified.

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Using Datums in EDM

Definition of Terms Associated With Datums

Datum terms are defined below, and are grouped by the Properties dialog in which they are found.

Project Properties

System Datum:

The System Datum is set in the Project Properties > General dialog, and represents absolute zero. It is the surface depth datum from which all well depths are measured, and all well depths are stored in the database relative to this datum. Usually the System Datum is Mean Sea Level, Mean Ground Level, or Lowest Astronomical Tide, but it can also be the wellhead, rigfloor, RKB, etc.

Elevation:

The Elevation is set in the Project Properties/General dialog, and represents the elevation above Mean Sea Level. (If Mean Sea Level is selected as the System datum, Elevation is grayed out.)

Well Properties

Depth Reference Datum(s):

The Depth Reference Datum represents zero MD. It is sometimes known as the local datum, and is measured as an elevation from the System Datum. You can define one or more Depth Reference Datums for a well in the Depth Reference Tab (Well Properties Dialog). For each Depth Reference Datum, you must specify the elevation above or below the System Datum.

The selected default Depth Reference datum in the list box will be the viewing datum in all applications (the viewing datum can be changed

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You can’t delete or change the elevation of a Depth Reference datum once it is referenced by a Design.

Offshore check box:

Check to indicate that this is an offshore well; leave unchecked to indicate a land well.

Subsea check box: (offshore well)

Check to indicate that this offshore well is subsea.

Ground Elevation: (land well)

This is the elevation of the ground above the System Datum; it is set in the Depth Reference Tab (Well Properties Dialog).

Water Depth: (offshore well)

This is the total depth of the column of water (MSL to mudline); it is referenced to Mean Sea Level.

Mudline Depth: (only for offshore subsea well)

This is the depth below system datum (MSL/LAT etc.) of the wellhead flange.

Wellhead Depth: (subsea well)

This is the distance from the wellhead to the system datum, and is used in some calculations where this is the hanging depth for casing leads when set. To determine wellhead depth:

Wellhead Depth (to rig floor) = Depth Reference Datum + Wellhead Depth

Wellhead Depth (set in the Well Properties > Depth Reference tab) is positive for offshore subsea and negative for wellheads above MSL (i.e., onshore or offshore platform). So, it does not matter in the above calculation whether it is offshore or subsea. Depth Reference Datum is always positive. Both wellhead depth and wellhead elevation are

Manual Well Plan

Using WELLPLAN

R2003.11.0.1

Contacting Support

Contents

Introduction

The Engineer’s Data Model (EDM) Database

Using the Well Explorer

Concepts and Tools

Torque Drag Analysis

Hydraulics Analysis

Well Control Analysis

Surge Analysis

Cementing-OptiCem Analysis

Critical Speed

Bottom Hole Assembly

Stuck Pipe Analysis

Notebook

Chapter

Introduction

What is WELLPLAN?

Training Course and Manual Overview

Chapter

The Engineer’s Data Model (EDM)

Database

Overview

Logging In To the Database

Starting WELLPLAN

Describing the Data Structure

Associated Components

Common Data

Data Locking

Simultaneous Activity Monitor (SAM)

Concurrent Use of Same Data By Multiple Users

How the Well Explorer Handles Concurrent Users

Reload Notification

Importing and Exporting Data

Importing Data into the EDM Database

Exporting Data From the EDM Database

Using Datums in EDM

Definition of Terms Associated With Datums