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饶阳凹陷页岩油储层应力敏感规律

王秀影 吴通 蔡军 熊战 郭广峰 张明

王秀影, 吴通, 蔡军, 熊战, 郭广峰, 张明. 饶阳凹陷页岩油储层应力敏感规律[J]. 钻井液与完井液, 2020, 37(2): 185-191. doi: 10.3969/j.issn.1001-5620.2020.02.009
引用本文: 王秀影, 吴通, 蔡军, 熊战, 郭广峰, 张明. 饶阳凹陷页岩油储层应力敏感规律[J]. 钻井液与完井液, 2020, 37(2): 185-191. doi: 10.3969/j.issn.1001-5620.2020.02.009
WANG Xiuying, WU Tong, CAI Jun, XIONG Zhan, GUO Guangfeng, ZHANG Ming. Patterns of Stress Sensitivity of the Shale Oil Reservoirs in Raoyang Depression[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(2): 185-191. doi: 10.3969/j.issn.1001-5620.2020.02.009
Citation: WANG Xiuying, WU Tong, CAI Jun, XIONG Zhan, GUO Guangfeng, ZHANG Ming. Patterns of Stress Sensitivity of the Shale Oil Reservoirs in Raoyang Depression[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(2): 185-191. doi: 10.3969/j.issn.1001-5620.2020.02.009

饶阳凹陷页岩油储层应力敏感规律

doi: 10.3969/j.issn.1001-5620.2020.02.009
基金项目: 

中国石油天然气股份有限公司重大专项“华北油田持续有效稳产勘探开发关键技术研究与应用”(2017E-15)

详细信息
    作者简介:

    王秀影,现在主要从事钻完井技术研究。电话18631768029;E-mail:cyy_wxy@petrochina.com.cn

  • 中图分类号: TE258

Patterns of Stress Sensitivity of the Shale Oil Reservoirs in Raoyang Depression

  • 摘要: 饶阳凹陷页岩油储量丰富,但页岩容易发生应力敏感,需测试该区块的应力敏感程度,寻找应力敏感规律,为生产制度提供基础数据。室内利用X-射线衍射全岩分析、荧光薄片及电镜扫描等方法,分析了储层矿物的组成、微观结构及连通度共11组,储层应力敏感性流动实验3组,利用数据拟合的方法获得该区块的应力敏感在渗透率损失20%时的规律,净应力与黏土及脆性矿物含量的公式为Pc=-0.09796mc+0.2385mb-7.8145;不可逆渗透率伤害率与黏土及脆性矿物含量公式为Ki=93.24+0.2797mc-0.6809mb的关系;其中,不可逆渗透率伤害率为52.09%,在渗透率损失20%时对应的净应力在3 MPa以内,进一步分析其原因是由于不同黏土含量造成不同的微裂缝的开合程度,但是脆性矿物含量决定不可逆渗透率伤害率及渗透率损失20%时对应的净应力值。结果表明,饶阳凹陷地区的页岩油储层应力敏感与与黏土矿物含量呈负相关,与脆性矿物含量呈正相关。同时通过研究页岩油储层应力敏感性规律的拟合方法,为再解决上述类似储层由于岩样样本数量少,利用有限的岩心柱塞表征整个地层的敏感规律,提供一种新的测试方法。

     

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出版历程
  • 收稿日期:  2019-11-27
  • 刊出日期:  2020-04-28

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