开发技术对气藏阶段采收率影响的灰色关联分析

doi:10.3969/j.issn.1673-8926.2011.01.019

Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (1): 107-110.doi: 10.3969/j.issn.1673-8926.2011.01.019

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Application of grey relational analysis to confirm influencing factors for gas reservoir recovery

YANG Qianqian¹， LI Xiangfang¹， WU Qiong²

1. Key Laboratory of Petroleum Engineering， Ministry of Education， China University of Petroleum， Beijing 102249， China； 2. Research Institute of Petroleum Engineering Technology， Sinopec， Beijing 100101， China

Online:2011-02-20 Published:2011-02-20

Abstract

Abstract:

The stage gas reservoir recovery is closely related to its ultimate recovery. In order to analyze the effects of production wells, formation pressure drop, gas production rate and annual output on the stage recovery, the gray relational analysis method is introduced and applied to confirm the influence of all selected factors. The factor affecting gas reservoir recovery is mainly development technique, and the grey relational analysis theory is a suitable method for it. The grey slope correlation degree method is chosen to compute the correlation degree, make them in sequence, and then determine the primary and secondary influencing factors. Case analysis result shows that the grey relational analysis method can be applied to quantitatively analyze the influencing factors for stage gas reservoir recovery. The method is simple in principle and calculation, and has no special requirements for the types of data distribution and the types of variables. The analysis result provides a certain basis for further optimizing gas reservoir development technologies and realizing advisable and efficient development of the gas reservoir.

Key words: deep natural gas, natural gas exploration, hydrocarbon source rocks, reservoir condition, Liaohe Depression

YANG Qianqian， LI Xiangfang， WU Qiong. Application of grey relational analysis to confirm influencing factors for gas reservoir recovery[J].Lithologic Reservoirs, 2011, 23(1): 107-110.

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