A lost circulation alam was sounded by the well monitoring equipment just before the cement job,...
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A lost circulation alam was sounded by the well monitoring equipment just before the cement job, and the drillers notice that the hook load slowly increases. A total of 15000 lbm of hook load was gained before the hook load again stabilized. The well contained 12 lbm/gal mud, and the casing string consisted of 9000 ft of Grade C-90 casing with the properties tabulated below. The open hole having a diameter of 12.25-in. Steel has a density of 65.5 lbm/gal. Length, Weight, Body yield strength, klbf Grade OD. ID, Wall ft in in thickness, lbm/ft in 9000 C-90 8.625 7.725 0.450 40 503 a) Calculate the depth of the fluid level in the well. b) If the depth of loss circulation zone is 6000 ft, estimate the formation pressure of the loss zone. A lost circulation alam was sounded by the well monitoring equipment just before the cement job, and the drillers notice that the hook load slowly increases. A total of 15000 lbm of hook load was gained before the hook load again stabilized. The well contained 12 lbm/gal mud, and the casing string consisted of 9000 ft of Grade C-90 casing with the properties tabulated below. The open hole having a diameter of 12.25-in. Steel has a density of 65.5 lbm/gal. Length, Weight, Body yield strength, klbf Grade OD. ID, Wall ft in in thickness, lbm/ft in 9000 C-90 8.625 7.725 0.450 40 503 a) Calculate the depth of the fluid level in the well. b) If the depth of loss circulation zone is 6000 ft, estimate the formation pressure of the loss zone.
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