Drill pipe
Effect of Extrusion Texture on Corrosion Behaviour of D16T Drill Pipe in 3.5% NaCl Solution
... Fig. 5 shows the recrystallized distributions of the A1 and A2 specimens. The A1 specimen contains 14.81% fully recrystallized grains (blue colour in Fig. 5a), 60.51% deformed grain (red colour in Fig. 5a) and 24.68% ...
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Examination of drill pipe corrosion in water-based drilling fluids under wellbore conditions
... mimic drill-pipe corrosion for both the static and dynamic tests under high-pressure, high-temperature (HPHT) working ...typical pipe material, ...the drill pipe were analysed to ...
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Effect of pre−corrosion on Electrochemical Corrosion and Fatigue Behavior of S135 High−Strength Drill Pipe Steel in Marine Environment
... The pre−corrosion on electrochemical corrosion and fatigue behaviors of S135 drill pipe steel were tested in simulated marine environment. The results shows that no passivation can be observed. With the ...
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Corrosion Behavior of Drill Pipe Steel in CO2-H2S Environment
... Sci., 12 2017 6705 – 6713, doi: 10.20964/2017.07.81 International Journal of ELECTROCHEMICAL SCIENCE www.electrochemsci.org Corrosion Behavior of Drill Pipe Steel in CO2-H2S Environment [r] ...
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Study on Drilling Parameters Optimization of Aluminum Alloy-Steel Hybrid Drill Pipe
... alloy drill pipe gradually receives good graces because of its light weight, high strength to mass ratio and strong corrosion ...alloy drill pipe by nonlinear finite element ...alloy ...
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Electrochemical Analysis of the Corrosion Behavior of Drill Pipe Steel under Oil/Water Emulsion Condition
... hydro-transport pipe steel immersed in oil sands slurry were considered sophisticated due to the synergistic effects of operating parameters and the varying components of steel ...
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Field Failure Analysis of DTH Hammer Bit
... transition pipe and drill pipe. The first section, BHA including drill collar that is a rock breaking tool and drill bit where the BHA is heavy with a thick walled hollow tube used for ...
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Two-phase Simulation of Well Control Methods for Gas Kicks in Case of Water and Oil-based Muds
... displays drill pipe pressure versus time whose general trend is similar to Figure ...on drill pipe fluid is negligible, and consequently on the surface pipe ...
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Analysis of Operability Envelopes for Subsea Production Tree Installation
... of drill pipe obtained by OrcaFlex simulation and the proposed model have the same variation during the SPT installation process, shown as in Figure ...the pipe increased obviously at shallow water ...
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Gap element method of longitudinal vibration of drill string
... overall drill string in this article, this is, the whole drill string from the wellhead to the bottom as research subjects, it can be any combination of the drill collars, drill pipe, ...
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String hydraulics in oil wells
... the drill pipe when being stuck in the well; relates the force to the pressure and determines the way to find the string load in the well considering the buoyancy effect due to fluid ...
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Theoretical Study on the While Drilling Electromagnetic Signal Transmission of Horizontal Well
... The electromagnetic wave transmission in horizontal wells is shown in the figure 3. The horizontal well model is more complex than the vertical well, in order to facilitate study, we assume that the formation is ...
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Simulation of steady-state cuttings transport through a horizontal annulus channel
... section. Drill pipe rotates in fixed eccentric ...without drill pipe rotation and with drill pipe ...the drill pipe significantly changes the flow structure: ...
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The Drill Geometry Influence on PCB Drilling Performance
... improved drill from wear test is made which geometry parameters are ...PCB drill proves better performance by measuring the flank ...standard drill from the wear test results in Figure ...between ...
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Petrophysical Investigations of the Marathon Cu-PGE Deposit, Marathon, ON
... Barrie et al. (2002) published results of a relogging and assaying study of the drill cores from the Marathon deposit, observing that the primary magmatic textures are common in all of the mineralized zones. They ...
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Volume 26, Number 5 (September 1973)
... JERRY E. Highlight: A deep-furrow drill-arm assembly for a Rangeland drill was developed, tested, and evaluated. Horizontal disk angle was the single most important f[r] ...
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A Study on Derivation of Parametric Cutting Force Equations In Drilling of GFRP Composites
... the drill machine spindle was set at a constant speed of 265 ...ythe drill dynamometer was fixed to the table of the machine table rigidly without distorting the sensitive parts of the ...made. Drill ...
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Measurements of bone tunnel size in anterior cruciate ligament reconstruction: 2D versus 3D computed tomography model
... the drill sizes (0.899 of ICC) and a mean difference of 0.07 mm to the drill sizes, comparable to 2D CT method with a ...the drill size (0.745 of ICC), and the closest mean difference to the ...
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Delamination in Fiber Reinforced Plastics: A Finite Element Approach
... The fiber reinforced plastics offers many advantages over traditional materials such as high strength to weight ratios, flexibility in design, dimensional stability, corrosion resistance [1-2]. Drilling of FRPs is often ...
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Design and Analysis of Pipe Rack System using STAAD PRO V8i Software
... unit. Pipe racks are main artery of the Oil & Gas Plants and hence detail planning and study are essential for any industrial ...The Pipe racks have to be designed for majority of the loads like primary ...
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