中国石油大学学报（自然科学版）Issue(4)：34-41,8.DOI:10.3969/j.issn.1673-5005.2014.04.005
吐哈盆地水西沟群“近生近储”型致密砂岩气藏特征及其成藏机制
Discussion on characteristics and accumulation mechanisms of"proximal-generation and proximal-storage" type tight sandstone gas accumulations in Shuixigou Group, Turpan-Hami Basin
摘要
Abstract
Based On field OutcrOps and fine cOre ObservatiOns, as well as cOntrasting regiOnal sedimentary prOfiles, a sedi-mentary mOdel was summarized in the ShuixigOu GrOup, Turpan-Hami Basin by cOmbining a series Of analyses Of a variety Of geOchemical indexes, the statistics and cOntrast Of the relatiOnship between the gas layer and the cOal strata, and the survey Of reservOir physical prOperties. With examples Of gas accumulatiOn prOfiles, the tight sandstOne gas accumulatiOns in the Shuix-igOu GrOup were studied. The results shOw that there are genetic relatiOnships between the Jurassic gas and the cOal series sOurce rOck in the ShuixigOu GrOup. The favOrable accumulatiOn factOrs Of the Jurassic tight sandstOne strata in Turpan-Hami Basin mainly include the direct cOntact Of the sandstOnes with the cOal layers in large areas, as well as sO-called “chimney-like” channels as crevasse splay bOdies and structural fractures︳ serving as an effective cOnnecting medium between sOurces and reservOirs. Tight sandstOne gas accumulatiOns Of ShuixigOu GrOup in Turpan-Hami Basin is a "prOximal-generatiOn and prOximal-stOrage" type in nature whOse generatiOn, migratiOn and accumulatiOn are all cOnfined tO the ShuixigOu GrOup itself.关键词
致密砂岩/煤系烃源岩/决口扇/近生近储/成藏机制Key words
tight sandstOne/sOurce rOcks Of cOal series/crevasse splay/prOximal-generatiOn and prOximal-stOrage/accumu-latiOn mechanism分类
能源科技引用本文复制引用
杨玉平,钟建华,孙玉凯,王劲松,范莉红,倪良田,赵勇生..吐哈盆地水西沟群“近生近储”型致密砂岩气藏特征及其成藏机制[J].中国石油大学学报（自然科学版）,2014,(4):34-41,8.基金项目
国家自然科学基金石油化工重点基金项目(Ul262203) （Ul262203）
国家油气重大专项(20llZX05009-002) （20llZX05009-002）
