基于压裂-返排数据驱动的致密储层缝网诊断技术发展现状与展望

doi:10.3969/j.issn.1006-6535.2026.01.001

摘要/Abstract

摘要： 致密储层缝网诊断是压裂效果评估的重要内容之一,诊断结果不仅可以用于评价缝网改造情况,还可以为后续压裂设计优化提供理论依据。针对目前致密储层缝网诊断时压裂-返排数据利用不充分的问题,对基于压裂-返排数据驱动的致密储层缝网诊断技术现状进行了综合调研与分析,并讨论了致密储层压裂缝网诊断技术存在的关键问题,指明了基于压裂-返排数据驱动的致密储层缝网诊断技术重点发展方向。研究表明:致密储层压裂缝网诊断技术存在滞后效应、裂缝非均匀闭合效应、小井距体积压裂井间干扰效应;需要建立压-闷-排全周期缝网诊断技术,发展闷井期间压降曲线缝网诊断技术以及压裂井间干扰影响下的缝网诊断技术。该研究成果可为基于压裂-返排数据驱动的致密储层缝网诊断技术的发展提供新思路和技术支持。

关键词: 压裂, 返排, 缝网诊断, 数据驱动, 致密储层

Abstract: Fracture network diagnosis of tight reservoirs is an important aspect of evaluating fracturing effect.The diagnostic results can not only serve to assess the fracture network transformation,but also provide a theoretical basis for optimizing subsequent fracturing designs.In light of the current insufficient utilization of fracturing-flowback data in tight reservoir fracture network diagnostics,a comprehensive review and analysis of the current situation in fracturing-flowback-based data-driven fracture network diagnostic technology for tight reservoirs was conducted.Key existing issues in tight reservoir fracture network diagnostics were discussed,and the focus areas for future development of data-driven fracture network diagnostic technologies using fracturing and flowback data were identified.The study shows that current tight reservoir fracture network diagnostic techniques exhibit lag effects,non-uniform fracture closure effects,and inter-well interference effects in closely spaced volume-fractured wells.It is necessary to establish a full-cycle(fracturing-shut-in-flowback)fracture network diagnostic method,develop diagnostic techniques based on pressure decline curves during shut-in,and advance fracture network diagnostic techniques under inter-well interference conditions.The results of this study provide new ideas and technical support for the development of fracturing-flowback-based data-driven fracture network diagnostic technology in tight reservoirs.

Key words: fracturing, flowback, fracture network diagnostics, data-driven, tight reservoir

中图分类号:

TE327

张衍君, 徐豪, 蔡文斌, 周德胜, 王鲁瑀, 刘建斌. 基于压裂-返排数据驱动的致密储层缝网诊断技术发展现状与展望[J]. 特种油气藏, 2026, 33(1): 1-10.

ZHANG Yanjun, XU Hao, CAI Wenbin, ZHOU Desheng, WANG Luyu, LIU Jianbin. Current state and prospects of fracturing-flowback-based data-driven fracture network diagnostic technology for tight reservoirs[J]. Special Oil & Gas Reservoirs, 2026, 33(1): 1-10.

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