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If the total ocean bottom depth is 5500 ft and the first layer depth is 13000 ft and the second layer depth is 15000 ft. The specific gravity of the rock in the first layer is 2.65 gm/cc while the second is 2.71 gm/cc. Calculate the temperature, hydrostatic pressure, lithostatic pressure, and the effective pressure. Assume the temperature gradient is 1.25 °F/100 ft. What is optimum drilling mud density (Ib/ft³) used if an oil well to be drilled to depth of 15000 ft in this formation?

If the total ocean bottom depth is 5500 ft and the first layer depth is 13000 ft and the second layer depth is 15000 ft. The specific gravity of the rock in the first layer is 2.65 gm/cc while the second is 2.71 gm/cc. Calculate the temperature, hydrostatic pressure, lithostatic pressure, and the effective pressure. Assume the temperature gradient is 1.25 °F/100 ft. What is optimum drilling mud density (Ib/ft³) used if an oil well to be drilled to depth of 15000 ft in this formation?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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If the total ocean bottom depth is 5500 ft and the first layer depth is 13000 ft and the second layer depth is 15000 ft. The specific gravity of the rock in the first layer is 2.65 gm/cc while the second is 2.71 gm/cc. Caleulate the temperature, hydrostatic pressure, lithostatic pressure, and the effective pressure. Assume the temperature gradient is 1.25 °F/100 ft. What is optimum drilling mud density (Ib/ſt') used if an oil well to be drilled to depth of 15000 ft in this formation?
Transcribed Image Text:If the total ocean bottom depth is 5500 ft and the first layer depth is 13000 ft and the second layer depth is 15000 ft. The specific gravity of the rock in the first layer is 2.65 gm/cc while the second is 2.71 gm/cc. Caleulate the temperature, hydrostatic pressure, lithostatic pressure, and the effective pressure. Assume the temperature gradient is 1.25 °F/100 ft. What is optimum drilling mud density (Ib/ſt') used if an oil well to be drilled to depth of 15000 ft in this formation?
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