涠西南凹陷涠洲组构造圈闭有效性定量评价技术及应用

doi:10.7623/syxb201812005

石油学报 ›› 2018, Vol. 39 ›› Issue (12): 1370-1378.DOI: 10.7623/syxb201812005

涠西南凹陷涠洲组构造圈闭有效性定量评价技术及应用

陈奎, 李茂, 邹明生, 孙晓晖, 高凌, 朱绍鹏

中海石油(中国)有限公司湛江分公司广东湛江 524057

收稿日期:2018-01-15 修回日期:2018-04-16 出版日期:2018-12-25 发布日期:2018-12-29
通讯作者: 李茂,男,1971年7月生,1995年获江汉石油学院学士学位,2017年获中国地质大学博士学位,现为中海石油(中国)有限公司湛江分公司商务合同部经理、教授级高级工程师,主要从事勘探开发一体化研究、管理工作。Email:lim@cnooc.com.cn
作者简介:陈奎,男,1986年8月生,2009年获哈尔滨理工大学学士学位,2012年获中国海洋大学硕士学位,现为中海石油(中国)有限公司湛江分公司南海西部石油研究院地质工程师,主要从事勘探开发一体化研究工作。Email:chenkui3@cnooc.com.cn
基金资助:
国家科技重大专项"近海大中型油气田形成条件及勘探技术"（2016ZX05024-006）资助。

The validity quantitative evaluation technology and its application to structural trap in Weizhou Formation, Weixinan sag

Chen Kui, Li Mao, Zou Mingsheng, Sun Xiaohui, Gao Ling, Zhu Shaopeng

Zhanjiang Branch, CNOOC China Limited, Guangdong Zhanjiang 524057, China

Received:2018-01-15 Revised:2018-04-16 Online:2018-12-25 Published:2018-12-29

摘要/Abstract

摘要：

北部湾盆地涠西南凹陷是南海西部海域最重要的原油产区，主力含油层系涠洲组断裂发育，主要为构造圈闭。涠洲组勘探开发一体化目标的成藏关键因素为构造圈闭有效性研究，主要存在哪种圈闭形态更有利于成藏，有利圈闭潜在资源量规模两方面的问题。针对这些问题，在潜力目标评价实践过程中，利用统计学方法对圈闭构造特征进行类比分析，解决哪种圈闭形态更有利于成藏的问题；提出了断层侧向封堵性与含油气性分析技术、断层垂向封堵性分析技术及油柱高度定量预测技术，提高了断层封堵性及潜在资源量的预测精度。将圈闭有效性评价技术应用于涠西南凹陷勘探开发一体化潜力目标评价实践中的效果显示，该技术提升了实际评价精度和效率，为凹陷增储上产做出了重要贡献。

关键词: 构造圈闭, 圈闭有效性, 定量评价, 潜在资源量, 涠西南凹陷

Abstract:

Weixinan sag in Beibuwan Basin is the most important crude oil producing region of the western South China Sea. In Weizhou Formation as the main oil-bearing bed, many fractures are developed, dominated by structural trap. Aiming at the integrated exploration and development of Weizhou Formation, the structural trap validity is a key factor for reservoir accumulation. Two problems mainly exist, i.e., it is difficult to determine the type of trap more favorable for accumulation and the potential resources of favorable traps. Thus, an analogy analysis of the trap structural characteristics is conducted using statistical method in evaluation of the potential target, so as to solve the first problem about the type of trap more favorable to accumulation. In addition, this study proposes the lateral fault sealing and oil-bearing property analysis technology, and establishes the vertical fault sealing analysis technology as well as the quantitative prediction technology of oil column height, thus improving the accuracy of predicting fault sealing and potential resources. The evaluation technique of trap validity is applied to assess the potential targets of exploration and development integration in Weixinan sag. The application results indicate that this technology improves the actual evaluation accuracy and efficiency, making an important contribution to the increase of reservoir and production in the sag.

Key words: structural trap, trap validity, quantitative evaluation, potential resources, Weixinan sag

中图分类号:

TE122.3

陈奎, 李茂, 邹明生, 孙晓晖, 高凌, 朱绍鹏. 涠西南凹陷涠洲组构造圈闭有效性定量评价技术及应用[J]. 石油学报, 2018, 39(12): 1370-1378.

Chen Kui, Li Mao, Zou Mingsheng, Sun Xiaohui, Gao Ling, Zhu Shaopeng. The validity quantitative evaluation technology and its application to structural trap in Weizhou Formation, Weixinan sag[J]. Acta Petrolei Sinica, 2018, 39(12): 1370-1378.

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涠西南凹陷涠洲组构造圈闭有效性定量评价技术及应用

The validity quantitative evaluation technology and its application to structural trap in Weizhou Formation, Weixinan sag

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