论文部分内容阅读
通过对油气运移、生储盖组合、砂体特征、油气藏类型、成岩作用、油水分布等制约和影响油气藏形成因素的分析，探讨了杏子川地区三叠系延长组长；油层组油气藏形成条件。结果表明，本地区为油气运移的长期指向区，具有良好的生、储、盖组合条件，三角洲平原分流河道砂体成为本区主力含油砂体，复杂的成岩特征造就了本区以成岩圈闭油气藏类型为主，油气主要分布于砂体中部物性较好、成岩作用较弱的部位。
Based on the analysis of hydrocarbon migration, reservoir-cap assemblage, sandbody characteristics, reservoir types, diagenesis, oil-water distribution and other factors that affect the formation of oil and gas reservoirs, the author discusses the Yanchang Formation Triassic Yanchang Formation in the Xingzichuan area; Tibetan formation conditions. The results show that the region is a long-term oil and gas migration zone with favorable combination conditions of reservoirs and cap rocks. Triassic distributary channel sand bodies in the delta plain have become the main oil-bearing sand bodies in this area. The complex diagenetic characteristics have resulted in the formation of diagenetic zones The oil and gas reservoirs are mainly oil-gas reservoirs, and the hydrocarbons are mainly distributed in the middle part of the sand body with better physical properties and diagenesis.