Fracturing method and apparatus

Details Fracturing method and apparatus Fracturing method and apparatus

1992-07-01

1994-03-22

Warden, Robert J.

Measuring and testing

Borehole or drilling

Downhole test

166271, E21B 4700

Patent

active

052953939

ABSTRACT:
A method of fracturing an underground formation traversed by a borehole comprising: a) placing an inflatable member inside the borehole in the formation to be fractured, b) inflating the member so as to exert stress on the formation while monitoring the pressure of a fluid used to inflate the member so as to determine the pressure at which fracture initiates; c) isolating the portion of the borehole containing the fracture; d) propagating the fracture by pressurizing the interval with fluid; and e) monitoring the pressure of the fluid in the interval during propagation.

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C. Ljunggren, O. Stephanson "Sleeve Fracturing--A borehole technique for in-situ determination of rock deformability and rock stress", Proceedings of the International Symposium on Rock Stress and Rock Stress Measurements, pp. 313-322 3 Sep. 1-3, 1986 / Stockholm.

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