Problem 4-1 A formation at 9,800 ft in depth exhibited a fracture gradient of 0.7 psi/ft when the formation pressure was 3,480 psi. What is the fracture gradient when the formation pressure has declined to 1,450 psi. Biot's constant (poroelasticity constant) is 1.0 and the tensile stress is 1,100 psi.for the formation. The overburden gradient is 1.1 psi/ft. Assume that Poisson' ratio remains constant as the reservoir pressure decreases. Assume that the area is tectonically relaxed.

Problem 4-1 A formation at 9,800 ft in depth exhibited a fracture gradient of 0.7 psi/ft when the formation pressure was 3,480 psi. What is the fracture gradient when the formation pressure has declined to 1,450 psi. Biot's constant (poroelasticity constant) is 1.0 and the tensile stress is 1,100 psi.for the formation. The overburden gradient is 1.1 psi/ft. Assume that Poisson' ratio remains constant as the reservoir pressure decreases. Assume that the area is tectonically relaxed.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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