a A Production Oil Company plans to run a 22,300-ft string of 47 Ib/ft, P-110 grade, 7.625-in. production casing. The maximum expected burst pressure is 14,000 psi. A 17 Ib/galmud will be used in the well. The tension safety factor is 1.8. Use the following tables toselect the appropriate couplings for this casing string and justify your answer.Burst Rating psi14,400Coupling typeJoint Strength IbLTC1,353,000BTC13,6001,545,000b Discuss the qualitative changes of burst and collapse resistances when the casingstring is become under tension or compression load.c Explain how casing design problems depend heavily on stress analysis techniques, rockmechanics and drilling and production conditions.d An exploration well is to be drilled to a total depth of 14,500 ft. Relevant data are asfollowsDrilling program0-450 ft450-5,000 ftCasing program0-450 t0-5,000 ft12.25-in.hole 0- 10,100 t10,100 - 14,500 nMud program0.465 psift 0- 450 ft0.465 psit o-5,000 ft0.465 psit o- 10,100 ft0.580 psift 0- 14,500 ft26-in. hole20-in. casing16-in. casing18-in. hole9.625-in. casing7-in casing5,000- 10,100 ft10,100-14,500tFormation gradient0-450 ft340- 5,000 ft.5,000- 10,100 t10,100- 14,500 t8.5-in. hole8.7 ppg(651b/t 3)9.5 ppg (70.7 bit3)9.7 ppg (73 Ib/n 3)11.5 ppg (85,6 Ib/ft 3)Size, outside diameter(in.)Nominal weight(Ibift)GradeCoupling type94133J-55К-55K-55N-80L-80LTC20BTCSTC4043.558.49 5/8BTCBTCBTC58.4P-110The 12.25 inch hole experiences a maximum, dog-leg severity of 2"/100 ft, peak shockload velocity are to be included.Consider the following Safety factors:Burst = 1.1,Collapse = 0.85,Tension = 1.8i Design suitable casing string for 20 inch casingLDesign suitable casing string for 9 5/8 inch casing., taking into considerationthe available casing grades (shown in the above table) and maximumexpected pressures.

Since you have posted multiple questions, I will answer the first question for you.

a A Production Oil Company plans to run a 22,300-ft string of 47 lb/ft, P-110 grade, 7.625- in. production casing. The maximum expected burst pressure is 14,000 psi. A 17 lb/gal mud will be used in the well. The tension safety factor is 1.8. Use the following tables to select the appropriate couplings for this casing string and justify your answer. Coupling type LTC BTC Burst Rating psi 14,400 13,600 Joint Strength Ib 1,353,000 1,545,000

a A Production Oil Company plans to run a 22,300-ft string of 47 lb/ft, P-110 grade, 7.625- in. production casing. The maximum expected burst pressure is 14,000 psi. A 17 lb/gal mud will be used in the well. The tension safety factor is 1.8. Use the following tables to select the appropriate couplings for this casing string and justify your answer. Coupling type LTC BTC Burst Rating psi 14,400 13,600 Joint Strength Ib 1,353,000 1,545,000

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter11: Calibrating Instruments

Section: Chapter Questions

Problem 13RQ

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