石油物探2026，Vol.65Issue(5)：855-870,16.DOI:10.12431/issn.1000-1441.2026.0059
深层页岩气地质工程一体化压裂效果评价与参数优化
An integrated geology-engineering method for deep shale gas fracturing evaluation and parameter optimization:A case study of Luzhou block in Sichuan Basin
摘要
Abstract
Fracturing performance in deep shale gas is often constrained by complex geological conditions and the presence of natural fractures.Existing evaluation methods lack systematicity and quantitative capability,making it difficult to effectively guide parameter optimization.Taking the Luzhou block in the Sichuan Basin as a case study,this work develops an integrated geology engineering approach for fracturing evaluation and parameter optimization.By integrating geological and engineering data from 24 wells,we establish a"1+27"classification system for geology engineering models.The system incorporates three dimensions—scale,angle,and distance—and enables accurate characterization of the coupling between geological features and engineering responses.Using microseismic inversion together with numerical simulation,we construct a hydraulic fracture morphology model centered on capture rate and interception rate.This model reveals three types of propagation mechanisms:stress controlled,mixed controlled,and fracture controlled.On this basis,fracture propagation simulation and orthogonal productivity analysis define the optimal ranges of fracturing parameters.A differentiated optimization template is also developed,which accounts for the variability in natural fracture characteristics.Furthermore,we combine a form based per stage evaluation with per well Pearson multivariate quantitative analysis to establish a full cycle quantitative evaluation method.This method enables precise identification and quantitative assessment of the factors that influence fracturing performance.The proposed system provides technical support for integrated geology engineering fracturing design in deep shale gas.It also facilitates a shift in parameter optimization from empirical judgment toward a strategy that synergistically combines geological modeling with quantitative analysis.关键词
深层页岩气/地质工程一体化/压裂效果评价/天然裂缝/裂缝扩展/参数优化Key words
deep shale gas/geology-engineering integration/fracturing evaluation/natural fracture/fracture propagation/parameter optimization分类
能源科技引用本文复制引用
胡俊杰,曾波,宋毅,周朗,朱炬辉,周小金,黎俊峰,姚志广,徐尔斯..深层页岩气地质工程一体化压裂效果评价与参数优化[J].石油物探,2026,65(5):855-870,16.基金项目
国家自然科学基金企业联合重点支持项目(U23B20156)和中国石油天然气股份有限公司科技专项(2023ZZ28YJ05)共同资助. This research is financially supported by the National Natural Science Foundation of China(Grant No.U23B20156)and the Science and Technology Special Project of PetroChina(Grant No.2023ZZ28YJ05). （U23B20156）
