a) Discuss the effect that crushing (out of roundness) causedby poor handling will have on the performance properties ofcasing.
b) Explain the following Special Cementing Problems and howthese problems can be solved.
i. Salt Sections Formations
ii. Kicks Following Cementing.
iii. Cement lost circulation.
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c) Explain the advantages and disadvasntages of using a linerrather than a full length casing string.
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d) A well is being planned for the Arab sea. A 16.8-lb/galpore pressure (BHP) is expected at 14,000 ft, which is the targetpay zone. An intermediate casing string is set at 12,000 ft in a17.8-lb/gal fracture gradient formation. The mud weight is expectedto be 0.3 lb/gal heavier than the maximum pore pressure (16.8lb/gal).
The company's philosophy with respect to cementing is tocement the entire annular area to surface with slurry that weighs1.0 lb/gal above the maximum mud weight. Due to pumping timerestrictions in this high-BHT well, the fluid must be displaced at6 bbl /min, which will create an equivalent circulating density of0.4 lb/gal.
i. Can the company's standard cementing philosophies be usedin this well?
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ii. If not, calculate the amount (height) of cement weighing1.0 lb/gal in excess of mud weight that can be used without causinglost circulation
