大庆石油地质与开发2025，Vol.44Issue(4)：164-174,11.DOI:10.19597/J.ISSN.1000-3754.202409011
基于地质工程一体化的水平井压裂窜扰成因分析
Cause analysis of horizontal well fracture-driven interactions(FDIs)based on geoscience-engineering integration:Taking tight reservoir in Mahu area of Junggar Basin as an example
摘要
Abstract
Aiming at the unclear understanding of causes of inter-well Fracture-Driven Interactions(FDIs)during the"factory"fracturing operation of horizontal well pattern in Mahu tight reservoir of Junggar Basin,a geomechani-cal model under actual formation conditions is established based on the research idea of integrated geoscience-engi-neering.Finite element method is used to invert and calculate the initial in-situ stress field of the reservoir.More-over,by using attributes fusion method of ant body and seismic body and through the fault automatic-picking tech-nology,a multi-scale deterministic natural fracture model of the reservoir is established,forming an integrated mod-eling and analysis process of"in-situ stress field inversion-natural fracture identification-complex fracture propaga-tion".The influence of combination characteristics of reservoir in-situ stress field and natural fracture zones on FDIs,as well as the fracture network morphology after fracturing and the conection of inter-well fractures of the ac-tual well pattern with interactions are studied and analyzed.The results show that the non-uniform and asymmetrical propagation of multi-clusters fractures is the internal cause for the complex FDIs characterized by"multi-wells con-tiguous distribution and multi-intervals connected"in Mahu area.It is affected by both the induction effect of small faults with lower approach angles and the capture effect of large-scale natural fractures with higher approaching an-gles,which are the main controlling factors.However,small-scale natural fractures and the non-uniform distribu-tion of rock mechanical parameters are the secondary controlling factors,which have relatively small impact on the non-uniform and asymmetrical propagation of multi-clusters fractures.It is concluded that the reasonable utilization of reservoir fault system and the control of fracturing intensity can effectively reduce the risk of FDIs in tight reser-voirs.The research provides technical guidance for fracturing development of horizontal well pattern in tight reser-voirs.关键词
压裂窜扰/复杂裂缝扩展/地质工程一体化/致密油藏/天然裂缝/玛湖地区Key words
Fracture-Driven Interactions(FDI)/complex fracture propagation/geoscience-engineering integra-tion/tight reservoir/natural fracture/Mahu area分类
能源科技引用本文复制引用
闫骁伦,李越,李铭琪,刘会胜,马新仿,张士诚,肖聪..基于地质工程一体化的水平井压裂窜扰成因分析[J].大庆石油地质与开发,2025,44(4):164-174,11.基金项目
安徽理工大学高层次引进人才科研启动基金"断控缝洞型碳酸盐岩储层水力压裂裂缝扩展规律研究"(2024yjrc34). （2024yjrc34）
