异常高压会压裂地层吗？

doi:10.3969/j.issn.1673-8926.2009.02.020

Lithologic Reservoirs ›› 2009, Vol. 21 ›› Issue (2): 99-102.doi: 10.3969/j.issn.1673-8926.2009.02.020

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Can abnormal high pressure fracture the reservoir itself?

LI Chuanliang¹, CAO Jianjun²

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Southwest Petroleum University， Chengdu 610500， China； 2. Qiudong Oil Production Plant， Tuha Oilfield Company， PetroChina， Shanshan 838202， China

Online:2009-06-16 Published:2009-06-16

Abstract

Abstract:

Abnormal high pressure reservoir is one with a pressure coefficient over 1.2. The possibility of formation fracturing by the pore pressure of itself is discussed. The result shows that due to the pressure pressing between pores, pore pressure can never fracture the formation itself. The fractures in formations, if possible, are all resulted from the change of external pressure acting on the formations. The rock of highly abnormal pressure reservoir is quite tight, so the rock compressibility is not very high as researchers think usually, but takes quite lowvalue.

Key words: accumulation model, above-generation and below-storag, favorable area, overpressure, fault, the second member ofQuantou Formation, Shangjia region

LI Chuanliang, CAO Jianjun. Can abnormal high pressure fracture the reservoir itself?[J].Lithologic Reservoirs, 2009, 21(2): 99-102.

References

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