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ISSN 2063-5346
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TORQUE AND DRAG MODELLING FOR THE WELL F-10

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Dharmik Pandya, Dr. Shailendra J. Naik
» doi: 10.31838/ecb/2023.12.si6.618

Abstract

Many oil and gas companies now drill horizontal and deviated wells for a variety of reasons. Horizontal wellbores are very helpful in unconventional reservoirs such gas shale and tight formations, allowing for increased production from these sources. One technological problem that must be thoroughly investigated throughout the design phase is the uptick in torque and drag forces downhole in deviated borehole trajectories. Torque and drag in business have historically been represented using a number of different approaches. The use of viscous fluid flow and soft string, stiff string approaches are among them. Since the drill string is modelled as a cable and is always assumed to be against the low side of the wellbore in the soft string model, drill string stiffness is disregarded. Stiff string models take into consideration the radial clearance in the wellbore in addition to the drill string's stiffness and bending moment. The normal component of fluid pressure on the drill string varies during drilling because fluid flow is not constant. The tangential component of the fluid flow is caused by the viscous drag on the drill string. Study was conducted to identify the best approach to modelling torque and drag for the F-10 well in the Volve field and comparable wells in the future, and the results of that research are presented here. The F-10 well was drilled in a northwesterly direction to confirm the presence of petroleum in Middle Jurassic reservoir rocks, thereby revealing further potential resources for the Volve field (the Hugin formation). Studies into both soft and stiff string methods will be conducted. The importance of taking viscous drag into consideration will also be evaluated.

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