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10. What is drawdown pressure? 11. Is the effect of drill pipe friction greater

ID: 702939 • Letter: 1

Question

10. What is drawdown pressure? 11. Is the effect of drill pipe friction greater in vertical vs horizontal wells? 12. What is the function of a mud pump? 13. What is the purpose of casing pipe? 14. Why is cement pumped in the annulus surrounding casing? 15. What is the purpose of reservoir simulation? 16. Is the drill string normally in compression or tension? 17. What is a "kick." 18. What is kill mud weight? 19. Is a mud motor directional drilling tool more expensive to operate than a rotary steerable tool? 20. What is the purpose of hydraulic fracturing? 21. What happens to reservoir permeability after hydraulic fracturing? 22. What is a packer? 23. Which valve on a production tree governs well production?

Explanation / Answer

Answer:

20.What is the purpose of hydraulic fracturing?

Hydraulic fracturing (also fracking, fraccing, frac'ing, hydrofracturing or hydrofracking) is a well stimulation technique in which rock is fractured by a pressurized liquid.

15.What is the purpose of reservoir simulation?

Reservoir simulation is an area of reservoir engineering in which computer models are used to predict the flow of fluids (typically, oil, water, and gas) through porous media.