红台气田中侏罗统油气藏特征及成藏模式

Characteristics and accumulation patterns of Middle Jurassic reservoirs in
Hongtai Gas Field

李雷寿 黄建廷 陈旋 梁芹 刘金华

吐哈油田分公司开发处，新疆 鄯善 838202 中国石油大学隐蔽油气藏与剩余油山东重点实验室，山东 东营 257061 中国石油大学地球资源与信息学院，山东 东营 257061 吐哈油田分公司勘探开发研究院，新疆 哈密 839009

在综合分析了吐哈盆地红台地区三间房组和七克台组油气藏流体特征、剖面和平面分布特征的基础上，认为吐哈盆地红台地区中侏罗统三间房组和七克台组油气藏为主要受构造和岩性因素控制的凝析气藏；沉积和构造特征决定了研究区目的层段油气藏的类型，即背斜油气藏、断鼻油气藏、岩性 - 构造复合油气藏、岩性上倾尖灭油气藏、岩性透镜体油气藏；结合本区油气藏的类型分析，建立了吐哈盆地红台地区三间房组和七克台组3种主要成藏模式，即断层 - 岩性复合油气藏成藏模式、断鼻构造圈闭油气藏成藏模式和岩性圈闭油气成藏模式。

Based on the analysis of fluid features, distribution characteristics of the sections and planes of the reservoirs in Sanjianfang
Formation and Qiketai Formation of Tuha Basin袁this paper concludes that the oil-gas reservoirs are the condensate gas reservoirs
controlled mainly by structural and lithologic factors. The sedimentary and structural features decide the oil-gas reservoir types in
Sanjianfang Formation and Qiketai Formation. They are anticline oil-gas reservoirs, fault-nose oil-gas reservoirs, composite
lithologic-structural oil-gas reservoir, lithology pinchout oil-gas reservoirs, sandstone lens oil-gas reservoirs. The main three
accumulation models are set up in Sanjianfang Formation and Qiketai Formation in Hongtai area of Tuha Basin combined with
the analysis of oil-gas reservoir types. The three accumulation models are the composite fault-lithology reservoirs, reservoirs
structural traps by fault-nose and the reservoirs of lithologic trap accumulation models