断层垂向封闭的断-储排替压力差法及其应用

doi:10.7623/syxb201404008

石油学报 ›› 2014, Vol. 35 ›› Issue (4): 685-691.DOI: 10.7623/syxb201404008

断层垂向封闭的断-储排替压力差法及其应用

付广, 王浩然, 胡欣蕾

东北石油大学地球科学学院黑龙江省高等学校"油气藏形成与保存"科技创新团队黑龙江大庆 163318

收稿日期:2014-02-28 修回日期:2014-05-06 出版日期:2014-07-25 发布日期:2014-08-05
通讯作者: 付广，男，1962年11月生，1984年获大庆石油学院学士学位，2006年获大庆石油学院博士学位，现为东北石油大学地球科学学院教授、博士生导师，主要从事油气藏形成与保存研究。Email：fuguang2008@126.com
作者简介:付广，男，1962年11月生，1984年获大庆石油学院学士学位，2006年获大庆石油学院博士学位，现为东北石油大学地球科学学院教授、博士生导师，主要从事油气藏形成与保存研究。Email：fuguang2008@126.com
基金资助:
国家自然科学基金项目“油源断裂转换带优势输导油气条件研究”（No.41372153）、“断层岩水压张裂漏油主控因素及张性破裂压力预测”（No.41372154）资助。

Modification and application of fault-reservoir displacement pressure differential method for vertical sealing of faults

Fu Guang, Wang Haoran, Hu Xinlei

College of Earth Sciences, Northeast Petroleum University; "Oil-Gas Reservoir Formation and Preservation" Technological Innovation Team of Colleges and Universities in Heilongjiang Province, Heilongjiang Daqing 163318, China

Received:2014-02-28 Revised:2014-05-06 Online:2014-07-25 Published:2014-08-05

摘要/Abstract

摘要：

为了更准确地研究油气纵向分布规律，在前人断层垂向封闭的断-储排替压力差法的基础上，考虑了排替压力方向对断层垂向封闭性的影响，建立了一套新的断层垂向封闭的断-储排替压力差法，选取歧口凹陷板桥断裂为例，利用该方法对其在沙河街组一段（沙一段）中部泥岩盖层内的垂向封闭性进行了定量评价，结果表明：歧口凹陷板桥断裂在13条测线处沙一段中部盖层内垂向上均是封闭的，可封闭住的最大油气柱高度为2.3~67.1 m，低于以往方法的评价结果，但与目前勘探确定的油气柱高度吻合关系更好，表明该方法用于断层垂向封闭性定量评价是可行的。

关键词: 断层, 垂向封闭性, 排替压力差, 油气柱高度, 歧口凹陷, 板桥断裂

Abstract:

To accurately study the vertical distribution pattern of oil-gas resources, the existing fault-reservoir displacement pressure differential method for vertical sealing of faults is modified by considering the effect of displacement pressure direction on vertical sealing capability of the fault. The proposed method is then applied for quantitative evaluation of vertical sealing capability of central caprock in the Member 1 of Shajiahe Formation (Es₁), Banqiao Fault, Qikou sag. Results show that the Banqiao Fault is completely sealed in the vertical direction in Es₁ central caprock along 13 survey lines. The maximum height of oil-gas column that can be sealed is 2.3-67.1 m, which is lower than previous evaluation results but better coincides with present exploration measurements. The proposed method is thus applicable for quantitative evaluation of vertical sealing capacity of faults.

Key words: fault, vertical sealing, displacement pressure difference, oil-gas column height, Qikou sag, Banqiao Fault

中图分类号:

TE112

付广, 王浩然, 胡欣蕾. 断层垂向封闭的断-储排替压力差法及其应用[J]. 石油学报, 2014, 35(4): 685-691.

Fu Guang, Wang Haoran, Hu Xinlei. Modification and application of fault-reservoir displacement pressure differential method for vertical sealing of faults[J]. ACTA PETROLEI SINICA, 2014, 35(4): 685-691.

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断层垂向封闭的断-储排替压力差法及其应用

Modification and application of fault-reservoir displacement pressure differential method for vertical sealing of faults

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