6,000 ft of 7-in C-75 grade of casing string will be run in a borehole having...
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6,000 ft of 7-in C-75 grade of casing string will be run in a borehole having a diameter of 8.5-1n. The casing has a unit weight of 38 lbm/ft and a wall thickness of 0.540-in. Mud weight used to run the casing into the borehole is 10 lbm/gal (ppg). a) Calculate the weight of casing string in the air. b) Calculate the hook load when the casing is in the borehole. c) Calculate the borehole capacity in terms of bbl/ft. d) Calculate the borehole capacity in terms of bbl. e) Calculate the displacement of the casing in terms of bbl/ft. f) Calculate the displacement of the casing in terms of bbl, g) Calculate the volume of cement slurry to fill the annulus in terms of bbl and cuft assuming a excess volume factor of 1.5) h) Calculate the maximum length of the casing if the rig used for this operation can handle 250,000 lbf of hook load. i) The casing gets stuck at bottom of the borehole while running the string. Calculate the maximum pulling force that the driller can apply at the surface to get free the casing assuming a safety factor of 1.2. 6,000 ft of 7-in C-75 grade of casing string will be run in a borehole having a diameter of 8.5-1n. The casing has a unit weight of 38 lbm/ft and a wall thickness of 0.540-in. Mud weight used to run the casing into the borehole is 10 lbm/gal (ppg). a) Calculate the weight of casing string in the air. b) Calculate the hook load when the casing is in the borehole. c) Calculate the borehole capacity in terms of bbl/ft. d) Calculate the borehole capacity in terms of bbl. e) Calculate the displacement of the casing in terms of bbl/ft. f) Calculate the displacement of the casing in terms of bbl, g) Calculate the volume of cement slurry to fill the annulus in terms of bbl and cuft assuming a excess volume factor of 1.5) h) Calculate the maximum length of the casing if the rig used for this operation can handle 250,000 lbf of hook load. i) The casing gets stuck at bottom of the borehole while running the string. Calculate the maximum pulling force that the driller can apply at the surface to get free the casing assuming a safety factor of 1.2.
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Given Hole size s 85 Casing OD 3D Thick ness 0540 3... View the full answer
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