中国石油大学学报（自然科学版）2024，Vol.48Issue(3)：15-26,12.DOI:10.3969/j.issn.1673-5005.2024.03.002
四川盆地灯影组多类型流体多期次改造作用下孔隙度演化的定量研究
Quantitative study on porosity evolution under multi-stage reformation of multi-type fluids in Dengying Formation,Sichuan Basin
摘要
Abstract
In this study,the fourth member of Dengying Formation in Sichuan Basin was examined.On the basis of traditional petrological testing,the reactive solute transport simulation technology was utilized to calculate the superposition and transfor-mation of reservoir pores due to multi-stage fluids and quantitatively restore the porosity evolution history.Results indicate that the reservoir experienced influences from atmospheric freshwater,seawater,organic acid,and hydrothermal fluid.The primary diagenetic processes controlling porosity were dissolution,dolomite formation and cementation,with transformed min-erals primarily comprising calcite,magnesium calcite,and dolomite.Different fluid types exhibited varying effects on reservoir reconstruction.Adequate atmospheric fresh water acted as a constructive fluid,while seawater,organic acids,and hydrother-mal fluids had both constructive and destructive impacts.Multi-stage fluids contributed to a superimposed effect on the reser-voir transformation,with the ultimate physical conditions of the reservoir contingent upon the comprehensive transformation of these fluids.Notably,the sequence of fluid modification significantly influenced the evolution of reservoir porosity.Simutane-ously,the sequence of fluid transformation played a pivotal role in shaping the evolution of reservoir porosity.关键词
深层碳酸盐岩储层/多类型流体/叠加改造/孔隙度演化/成岩作用数值模拟Key words
deep carbonate reservoir/multi-type fluids/superimposed transformation/porosity evolution/diagenesis simulation分类
能源科技引用本文复制引用
杨磊磊,魏国,于志超,鲁雪松,周慧,王珊,李昌伟..四川盆地灯影组多类型流体多期次改造作用下孔隙度演化的定量研究[J].中国石油大学学报（自然科学版）,2024,48(3):15-26,12.基金项目
中石油重点实验室开放课题(2023-KFKT-08) （2023-KFKT-08）
国家自然科学基金项目(42372143) （42372143）
中国石油大学(北京)人才基金(2462023BJRC030) （北京）
中国石油天然气股份有限公司重大科技专项(2023ZZ02) （2023ZZ02）
