西南石油大学学报（自然科学版）2025，Vol.47Issue(5)：62-74,13.DOI:10.11885/j.issn.1674-5086.2024.12.27.03
基于层次分析法的页岩储层地质甜点优化评价
Geology Sweet Spot of Shale Gas Optimization Evaluation Based on Analytic Hierarchy Process
摘要
Abstract
Shale gas geological sweet spot evaluation is a comprehensive problem involving multiple parameters,and its pre-diction methods are diverse and the definition of the threshold of each index parameter is difficult to be unified.Based on clarifying the petrophysical properties of shale formations and integrating core experimental analysis results,this study syste-matically conducted optimization of geological sweet spot parameters for shale gas reservoirs.The prediction models of TOC content,porosity,gas saturation and gas content were established.And the weight coefficients of each key reservoir parameter were determined by analytic hierarchy process.Finally,the quantitative evaluation model of geological sweet spot index was established.The application results in Luzhou deep shale reservoir and Changning middle deep shale reservoir show that the correlation coefficients between the predicted values and the measured values of the four parameters are all above 0.85,which effectively improves the prediction accuracy of key parameters of shale gas reservoir.Both regions show higher geological sweet spot parameters at the bottom of Longmaxi Formation,which is highly consistent with the actual production situation.This study not only solves the contradiction of multi-parameter difficult to quantify in the evaluation process of geological sweet spot,provides a new comprehensive quantitative evaluation model of shale gas geological sweet spot,but also deepens the understanding and understanding of the complex mechanism of geological sweet spot,and provides scientific basis and theoretical support for the formulation of future shale gas exploration and development strategies.关键词
页岩气/地质甜点/层次分析法/川南地区/龙马溪组Key words
shale gas/geological sweet spot/analytic hierarchy process/southern Sichuan/Longmaxi Formation分类
石油、天然气工程引用本文复制引用
冷钇江,唐洪明,王滢,石学文,刘佳..基于层次分析法的页岩储层地质甜点优化评价[J].西南石油大学学报（自然科学版）,2025,47(5):62-74,13.基金项目
中国石油-西南石油大学创新联合体项目(2020CX020102) （2020CX020102）
