应力敏感效应的气井流量动态特征研究

doi:10.3969/j.issn.1673-8926.2010.04.024

Lithologic Reservoirs ›› 2010, Vol. 22 ›› Issue (4): 130-134.doi: 10.3969/j.issn.1673-8926.2010.04.024

Study on stress sensitivity effect on flow dynamic features of gas wells

FAN Huaicai¹， LI Xiaoping¹， DOU Tiancai²， WU Xinyuan¹

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Southwest Petroleum University， Chengdu 610500， China； 2 . Exploitation Department， Yanchang Oil and Gas Corporation， Yan’an 716001， China

Online:2010-12-15 Published:2010-12-15

Abstract

Abstract:

The rock stress sensitivity will apparently affect the development performance in the process of reservoirs developing, especially in the development of low permeability reservoirs and volcanic reservoirs. The mathematical model is established by using the transient flow theory under the consideration of stress sensitivity and the skin
coefficient, and the solution of the real space is obtained by means of the Stehfest numerical inversion. On the basis of the varying relation between the dimensionless rate and dimensionless time, the influences of skin coefficient, dimensionless stress sensitivity, closed boundary and constant pressure boundary on the dynamic features of gas wells are analyzed. The research result shows that to reasonably develop gas reservoirs with stress sensitivity can make sure of the gas wells and reservoirs producing normally.

Key words: sequence stratigraphy, seismic facies, Gulf of Thailand, Cambodia Sea

FAN Huaicai， LI Xiaoping， DOU Tiancai， WU Xinyuan. Study on stress sensitivity effect on flow dynamic features of gas wells[J].Lithologic Reservoirs, 2010, 22(4): 130-134.

References

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