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超深层断控碳酸盐岩油藏地质力学建模及其在开发中的应用

蔡振忠 张辉 徐珂 尹国庆 王志民 王海应 钱子维 张禹

蔡振忠, 张辉, 徐珂, 尹国庆, 王志民, 王海应, 钱子维, 张禹. 超深层断控碳酸盐岩油藏地质力学建模及其在开发中的应用[J]. 石油实验地质.
引用本文: 蔡振忠, 张辉, 徐珂, 尹国庆, 王志民, 王海应, 钱子维, 张禹. 超深层断控碳酸盐岩油藏地质力学建模及其在开发中的应用[J]. 石油实验地质.
CAI Zhenzhong, ZHANG Hui, XU Ke, YIN Guoqing, WANG Zhimin, WANG Haiying, QIAN Ziwei, ZHANG Yu. Geomechanics modeling of ultra-deep fault-controlled carbonate reservoirs and its application in development[J]. PETROLEUM GEOLOGY & EXPERIMENT.
Citation: CAI Zhenzhong, ZHANG Hui, XU Ke, YIN Guoqing, WANG Zhimin, WANG Haiying, QIAN Ziwei, ZHANG Yu. Geomechanics modeling of ultra-deep fault-controlled carbonate reservoirs and its application in development[J]. PETROLEUM GEOLOGY & EXPERIMENT.

超深层断控碳酸盐岩油藏地质力学建模及其在开发中的应用

基金项目: 

中国石油天然气股份有限公司科技重大专项(2018E-18)资助。

详细信息
    作者简介:

    蔡振忠(1970-),男,教授级高级工程师,从事石油勘探科研和管理工作。E-mail:caizz-tlm@petrochina.com.cn。

    通讯作者:

    徐珂(1991-),男,高级工程师,从事油气田地质力学科研与生产工作。E-mail:xukee0505@163.com。

  • 中图分类号: P551

Geomechanics modeling of ultra-deep fault-controlled carbonate reservoirs and its application in development

  • 摘要:

    为提高超深断控碳酸盐岩油藏的开发效益,通过开展大尺寸岩样力学实验,揭示高角度-近直立断裂面变形与连通机理;基于高压注水提采的力学与流动耦合原理,通过地质力学建模,明确了断控碳酸盐岩油藏现今地应力场和断裂活动性分布规律;发现不同方位的断裂活动性以及不同部位的缝洞体连通性有明显差异,进而分析了不同井眼轨迹的开发效果,提出了地质工程一体化工作方法,科学指导井眼轨迹设计和注水方案优化。结果表明:①走滑断裂变形中的大尺度破碎体和高角度裂缝系统是影响储层品质的关键因素,高压注水一方面能够激活先存裂缝,一方面还能在先存裂缝基础上发生延伸扩展,甚至可以产生新的裂缝,促进了断控缝洞体在纵横向上的互相连通;②高压注水过程中断裂体内部发生力学与流动之间的耦合变化,渗流环境得到改善,通过循环举升,从而提高油气采收率;③根据断裂体形态、产状以及断裂面动态剪切变形连通性,可优选定向井最佳井点和井眼轨迹,并优化注水方案;④塔里木盆地断控油藏试验区通过高压注水,采收率提高5个百分点,该方法为超深断控型油藏高效开发提供了较好的理论依据和技术支撑。

     

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  • 收稿日期:  2023-08-07
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