大庆石油地质与开发2024，Vol.43Issue(6)：155-162,8.DOI:10.19597/J.ISSN.1000-3754.202307021
考虑压裂诱导效应的页岩储层工程可压裂性评价
Engineering fracability evaluation of shale reservoirs considering fracturing induced effect
摘要
Abstract
Engineering fracability is an important evaluation index for staged clusters selection of shale gas horizon-tal well fracturing.Current evaluation methods usually consider the influence of rock brittleness,fracture toughness and horizontal well principal stress,but ignore the influence of operation parameters on fracability.Based on evalua-tion of rock brittleness,considering the influence of irregular bifurcated natural fractures on rock fracture tough-ness,dimensionless net pressure index is established by introducing net pressure of operation fracture and coupling horizontal stress difference of reservoir,forming engineering fracability evaluation method that couples reservoir rock fragmentation,fracture extension and induced effect of operation parameters.The results show good consisten-cy of evaluation results by established fracability model with microseismic monitoring events number and stimulated volume,indicating that established model can effectively characterize the capability of fracturing to form complex fracture network.The research provides basis for selection of perforation locations for staged fracturing of shale hori-zontal wells.关键词
脆性指数/分叉天然裂缝/断裂韧性/无因次净压力/可压裂性评价Key words
brittleness index/bifurcated natural fractures/fracture toughness/dimensionless net pressure/fraca-bility evaluation分类
能源科技引用本文复制引用
邹清腾,曹博文,王永红,陈钊,舒东楚,尚立涛,侯腾飞..考虑压裂诱导效应的页岩储层工程可压裂性评价[J].大庆石油地质与开发,2024,43(6):155-162,8.基金项目
四川省自然科学基金"深层页岩储层多簇射孔压裂竞争扩展多目标协同智能优化与调控"(2023NSFSC0424) （2023NSFSC0424）
浙江油田公司项目"浙江页岩气水平井体积改造技术提升攻关与现场试验"(2022ZS0609) （2022ZS0609）
国家自然科学基金面上项目"大数据驱动的深层页岩压裂参数协同优化与实时调控研究"(52374045). （52374045）
