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顺9井区应力敏感下合理压差的初探

石油实验地质

2013年 35卷第S1期

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Title

Preliminary study of reasonable pressure difference including stress sensitivity in well block Shun 9

作者

陶杉徐燕东

Authors

Tao Shan Xu Y

单位

中国石油化工股份有限公司西北油田分公司,乌鲁木齐 830011

Organization

SINOPEC Northwest Oilfield Company, Urumqi, Xinjiang 830011, China

摘要

以塔河油田顺9井区砂岩油藏为例，采用3种不同计算方法，分别计算了低孔、低渗、含微裂缝的油藏应力敏感下合理压差，对比3种计算方法的优缺点，优选出适合顺9井区的计算方法并得出应力敏感下合理压差。结果表明：顺9井区临界压差为22.10 MPa。将此结果应用于顺9CH气举时助排深度计算，建议顺9CH气举助排深度不超过888.53 m。

Abstract

Taking the sandstone reservoirs in well block Shun 9 in the Tahe Oil Field as an example, the reasonable pressure difference including stress sensitivity in reservoirs with low porosity, low permeability and microfracture is calculated with 3 different methods. The method which is most favorable for the study area is chosen after comparison. The critical pressure difference in well block Shun 9 is calculated as 22.10 MPa. The result is applied in the gas lift depth calculation in Shun 9CH, that is, under 888.53 m.

关键词：

应力敏感; 合理压差; 裂缝油藏; 顺9井区; 塔河油田;

Keywords:

stress sensitivity; reasonable pressure difference; reservoir with fracture; well block Shun 9; Tahe Oil Field;

基金项目

DOI

https://doi.org/10.11781/sysydz2013S1098