四川盆地高石梯-磨溪构造龙王庙组储层差异性及气水分布  

Reservoir difference and gas-water distribution of Longwangmiao Formation in Gaoshiti-Moxi structure,Sichuan Basin

作　　者：田艳红[1] 刘树根[1] 赵异华 孙玮[1] 宋林珂 宋金民[1] 梁锋[2] 尹柯惟 李俊良 王晨霞[1] 吴娟[1] 李泽奇 龙翼[1] 

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059 [2]中国石油西南油气田公司川中油气矿,四川遂宁629001

出　　处：《西安石油大学学报（自然科学版）》2015年第5期1-9,15,共10页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家重点基础研究发展计划“973”项目(编号:2012CB214805);国家科技重大专项(编号:2011ZX05005-003)

摘　　要：利用钻井、测录井、地震和测试资料,结合岩心观察、薄片鉴定和阴极发光分析等,对四川盆地高石梯—磨溪构造龙王庙组气层、水层和干层的颗粒滩微相、储层特征和关键性成岩作用进行对比分析。结果表明,龙王庙组储层非均质性较强,气层和水层颗粒滩储集性能良好,准同生期淡水溶蚀作用和埋藏期烃类(有机酸)充注作用发育;干层颗粒滩体发育较差,建设性成岩作用对其改造较弱。气层储集性能最为优越,水层次之,干层最差。古隆起次级构造高点的迁移控制储集层的气水分布,气层主要分布在古隆起次级构造高部位,水层位于古隆起次级构造斜坡及低部位。The sedimentary grain beach microfacies,the reservoir characteristics and the key diageneses of the gas layers,the water layers and the dry layers in Longwangmiao Formation of Gaoshiti-Moxi structure,Sichuan Basin are comparatively studied according to the analysis of drilling,logging seismic and oil production test data,along with core observation,slice identification and physical property data. The results show that the Longwangmiao reservoir has strong heterogeneity,the sedimentary grain beach microfacies in the gas layers and the water layers has good physical property and constructive diagenesis including penecontemporaneous fresh-water dissolution and hydrocarbons( organic acids) filling. However,the sedimentary grain beach microfacies in the dry layers is poorly developed,and the constructive diagenesis is also weak. The physical property of the gas layers is the best,the water layers' is secondary,and the dry layers' is the worst. The migration of the secondary structure highs of palaeouplift controlled the gas-water distribution in the reservoir,the gas layers mainly distribute in the secondary structure higher parts of palaeouplift,and the water layers locate in the secondary structure slopes and lower parts of palaeouplift.

关 键 词：储层差异性 气水分布 龙王庙组 高石梯—磨溪构造 四川盆地 

分 类 号：TE122[石油与天然气工程—油气勘探]