深圳大学学报（理工版）2026，Vol.43Issue(5)：549-556,8.DOI:10.3724/SP.J.1249.2026.05549
页岩气地质力学—裂缝扩展—压裂产量预测一体化技术
Shale gas geomechanics-fracture propagation-fracturing production prediction integration technology
摘要
Abstract
The effectiveness of staged fracturing performance and single-well production of horizontal wells in the Longmaxi Formation shale gas reservoirs of the Weiyuan-Changning Block,Sichuan Basin,varies considerably owing to well-developed natural fractures and complex rock mechanical and in-situ stress characteristics.To quantitatively evaluate andoptimize the stimulation effectiveness of individual fracturing stages,guided by the concept of geo-engineering integration,a full-process modeling system integrating 3D geological modeling,multi-scale natural fracture modeling and refined geomechanical modeling was established.The effects of natural fractures on geomechanical behavior and permeability were considered,andnumerical simulations of hydraulic fracture propagation and gas-reservoir flow were coupled to develop an integrated prediction technology linking shale-reservoir geomechanics,fracture propagation and fracturing production,and a quantitative evaluation method for fracturing stages based on fracture-controlled stimulated reservoir volume was subsequently proposed.Typical horizontal wells in the block were used for field validation using actual operational parameters,and the impacts of formation physical properties,natural fracture development degree and rock mechanical properties on stimulated fracture volume and single-well production were analyzed.The results show that the proposed technical workflow has high prediction accuracy and strong applicability.When the length of the horizontal fracturing interval is over 1.6 km,the well production is higher than the block average,with the highest cumulative production achieved for intervals of 1.8-2.2 km.When the number of fracturing stages exceeds 26,a differential"one-stage-one strategy"simulation scheme is recommended,which can increase the 3-year cumulative production of a single well by 10.0%-20.0%,and increase the recovery factor of well groups by up to 6.0%.This proposed technology provides a quantitative basis and technical support for optimizing the fracturing design of horizontal shale gas wells and improving production efficiency in the Sichuan Basin.关键词
页岩气/水平井/分段压裂/裂缝扩展/地质工程一体化/缝控改造体积/产量预测/龙马溪组Key words
shale gas/horizontal well/staged fracturing/fracture propagation/geo-engineering integration/fracture-controlled stimulated reservoir volume/production prediction/Longmaxi Formation分类
能源科技引用本文复制引用
时贤,张博涛,崔帅,车明光,黄浩勇,葛晓鑫,张腾..页岩气地质力学—裂缝扩展—压裂产量预测一体化技术[J].深圳大学学报（理工版）,2026,43(5):549-556,8.基金项目
National Natural Science Foundation of China(52374027,42130803) （52374027,42130803）
National Science and Technology Major Project of China(2025ZD1404101) （2025ZD1404101）
Major Science and Technology Project of PetroChina Company Limited(2019F-31) 国家自然科学基金资助项目(52374027 （2019F-31）
42130803) （）
国家科技重大专项资助项目(2025ZD1404101) （2025ZD1404101）
中国石油天然气股份有限公司重大专项资助项目(2019F-31) （2019F-31）
