雪峰山西侧盆山过渡带震旦系—下古生界油气远景区预测与评价

Prediction and evaluation of the Sinian-Lower palaeozoic oil-gas prospective areas in the basin-mountain transitional region on the western side of the Xuefeng Mountain

摘要: 通过油气地质调查和综合研究认为，雪峰山西侧盆山过渡带震旦系—下古生界可能发育3套主要的生储盖组合及1套次要生储盖组合；可能存在原生型油气藏等4种油气藏。依据生储盖及其组合发育特征、保存条件、油气显示、构造圈闭及油气系统分析，初步优选出利川—恩施、石门—桑植、仁怀—金沙、武隆—道真4个有利含气远景区，以及湄潭—思南、黄平—麻江2个较有利含气远景区。这些认识成果，为深入开展雪峰山西侧地区有利油气勘探目标区块优选和评价奠定了重要的基础。

Abstract: Based on the above-mentioned work and the available information, this paper proposes four oil-gas favorable zones(Lichuan-Enshi, Shimen-Sangzhi, Renhuai-Jinsha and Wulong-Daozhen) and two relatively promising gas districts(Meitan-Sinan and Huangping-Majiang). The achievements obtained by the authors have laid important foundation for further petroleum geological survey and target block evaluation on the western side of the Xuefeng Mountain.