RESEARCH ARTICLE


Multi-Factor Grey Correlation Analysis of Horizontal Well Development Effect in Chunguang Oilfield



Li Jiqiang1, *, Yuan Yingzhong1, Niu Xiaofeng1, Yang Jianhui2, Ren Jing2
1 School of Oil and Gas Engineering, CQUST, Chongqing, 401331, P.R. China;
2 Xinjiang Exploration Exploitation Centre, Henan Oilfield Branch Company, CNPC, Yanqi, 841100, P.R. China


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© 2015 Jiqiang et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: Address correspondence to this author at the School of Oil and Gas Engineering, Chongqing University of Science Technology, Chongqing, 401331, P.R. China; Tel: +86 023 65022347; Fax: +86 023 65022247; E-mail: lijiqiangcq@163.com


Abstract

Chunguang oilfield is a lithologic trap reservoir with edge water drive, whose horizontal well development effect is influenced by static factors and dynamic factors. In the process of production, the influences of static factors including reservoir physical properties and dynamic factors including working system, liquid production velocity on horizontal well development effects are different, and it is difficult to find main factor influencing horizontal well development effect with conventional single-factor analysis method. Combined with static and dynamic data of Chunguang oilfield, using multi-factor grey correlation analysis method, quantitative relationships between horizontal well development effect and different factors are systematically analyzed. Main factors influencing horizontal well development effect and dynamic influence laws between different factors and horizontal well development effect are clarified. Problems existed in the development process are known and it can provide the direction for future development and adjustment of Chunguang oilfield.

Keywords: Horizontal well, Development effect, Influence factors, Grey correlation, Permeability.