首页|深层页岩气储层水力压裂裂缝扩展影响机理

深层页岩气储层水力压裂裂缝扩展影响机理

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
现有中浅层页岩气压裂取得的认识难以解释深层页岩气储层压裂过程中水力裂缝扩展的影响机理.为了研究四川盆地深层页岩气储层水力压裂裂缝扩展机理,文中以泸州深层页岩气区LS1平台为研究对象,进行基于地质-工程一体化的水力压裂裂缝扩展数值模拟与分析.首先,根据泸州区块目标井区储层的地质概况,建立地质模型,明确地质力学属性;然后,基于微地震和蚂蚁体数据,建立符合真实储层构造特性的离散天然裂缝网络;在此基础上,根据现场实际施工数据,建立了基于DFN的水力压裂复杂裂缝扩展模型,并基于微地震监测结果对模型进行了验证;最后,还研究了 4个单因素对储层改造体积的影响特点.研究结果对深层页岩气储层水力压裂复杂缝网研究有一定的指导作用.
Influence mechanism of hydraulic fracturing fracture propagation in deep shale gas reservoirs
It is difficult to explain the influence mechanism of hydraulic fracture propagation in deep shale gas reservoirs based on the current understanding of medium and shallow shale gas fracturing.In order to study the hydraulic fracturing fracture propagation mechanism of deep shale gas reservoirs in Sichuan Basin,LS1 platform in Luzhou deep shale gas area was selected as the research object to conduct numerical simulation and analysis of hydraulic fracturing fracture propagation based on the integration of geology and engineering.First,the geological model was established and geomechanical properties were defined according to the geological characteristics of the target well area reservoir in Luzhou block.Then,a discrete natural fracture network in accord with the structural characteristics of the real reservoir was built based on microseismic and ant body data.On this basis,a complex fracture propagation model is built based on DFN according to the actual construction data.The model is verified based on microseismic monitoring results.The influence characteristics of four single factors on reservoir stimulation volume are studied.The results can be used to guide the research of hydraulic fracturing complex fracture network in deep shale gas reservoirs.

deep shale gasdiscrete natural fracture networkDFNcomplex fracture propagationreservoir stimulation volume

曾波、冯宁鑫、姚志广、杜雨柔、黎俊峰、郑健、衡德、唐煊赫、朱海燕

展开 >

中国石油西南油气田分公司页岩气研究院,四川成都 610051

成都理工大学能源学院,四川成都 610059

成都理工大学油气藏地质及开发工程全国重点实验室,四川成都 610059

深层页岩气 离散天然裂缝网络 DFN 复杂裂缝扩展 储层改造体积

国家自然科学基金面上项目国家自然科学基金重大项目国家自然科学基金联合基金重点项目四川省杰出青年科技人才项目

5187425352192622U20A202652022JDJQ0007

2024

10.6056/dkyqt202402009

断块油气田
中原石油勘探局

断块油气田

CSTPCD北大核心
影响因子：1.493
ISSN：1005-8907
年,卷(期)：2024.31(2)
  • 54