Question
In a 12 hole, 9.5/8 (40 lb/ft) L80 casing with an ID of 8.835 was run in to a shoe depth of 6,100 ft
In a 12 ¼" hole, 9.5/8" (40 lb/ft) L80 casing with an ID of 8.835" was run in to a
shoe depth of 6,100 ft TVD. The float collar at the 6,020 ft. Hole is assumed to
be in gauge.
Top of Cement at 4,000 ft
Top of Spacer at 5,000 ft
Spacer Weight = 12 ppg
Mud Weight = 10 ppg
Cement Class H:
Yield = 1.15 cuft/sk
Density = 16 lb/gal
Water Requirement 4.5 gal/sk
1 barrel = 5.615 ft3
1 Barrel = 42 gallons
Sack cementing weighs 94 lbs
Calculate:
(i) Volume of cement slurry;
(ii) Number of sacks of cement required;
(iii) Volume of water mix required;
(iv) If the cement is displaced with mud and the plugs bump, what would be
the final displacement pressure.
Other information.
RKB height above MSL = 77 ft
semi-submersible rig to be used
Total depth = 7150 ft TVD RKB, 8260 ft MD RKB
Question 2
Along with the cementing unit what other topsides and downhole equipment are
required to carry out the 9 5/8" primary cementing job?
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Get StartedRecommended Textbook for
Heat Transfer
Authors: Jack Holman
10th edition
73529362, 978-0073529363
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