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吐哈盆地台北凹陷侏罗系油气储层特征及影响因素
引用本文:党犇,赵虹.吐哈盆地台北凹陷侏罗系油气储层特征及影响因素[J].成都理工大学学报(自然科学版),2005,32(2):142-146.
作者姓名:党犇  赵虹
作者单位:长安大学资源学院,西安,710054
基金项目:国家重点基础研究发展计划(973计划)
摘    要:利用岩芯观测、铸体薄片、阴极发光、扫描电镜、物性分析、压汞分析等方法,总结研究了吐合盆地台北凹陷侏罗系油气储层特征及影响因素.结果表明,储集层发育辫状河三角洲砂体、扇三角洲砂体和滨浅湖滩砂体三种类型,主体处于晚成岩A1亚期,储集岩主要属岩屑砂岩和长石岩屑砂岩,粒间溶孔是油气主要储集空间,以细、微细喉道为主,部分地区或层段储层裂缝发育.总体上属中低孔、中低渗型储层,纵向上以三间房组物性最好、西山窑组次之、七克台组较差,平面上凹陷南部、西部的辫状河三角洲砂体和西部的滨浅湖滩砂体是重要储层.影响储集性能的因素有沉积相、成岩作用和构造应力作用.

关 键 词:储集层  侏罗系  台北凹陷  吐哈盆地  沉积相  成岩作用  吐哈盆地  台北凹陷侏罗系  油气储层特征  影响因素  depression  Jurassic  factors  Characteristics  应力作用  构造  成岩作用  沉积相  储集性能  南部  平面  七克台组  西山窑组  物性  三间房组  低孔
文章编号:1671-9727(2005)02-0142-05
修稿时间:2004年5月31日

Characteristics and influential factors of Jurassic oil-gas reservoirs in Taibei depression, Turpan-Hami basin, China
DANG Ben,ZHAO Hong.Characteristics and influential factors of Jurassic oil-gas reservoirs in Taibei depression, Turpan-Hami basin, China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2005,32(2):142-146.
Authors:DANG Ben  ZHAO Hong
Abstract:The characteristics and influential factors of Jurassic oil-gas reservoirs in Taibei depression of Turpan-Hami basin are studied by core, casting thin section, cathodology, SEM, porosity and permeability analysis , mercury intrusion method etc. The result shows that the reservoir sandstone bodies can be divided into three types: that braid river delta, fan delta and shore-shallow lake. Reservoir rocks are primarily litharenite and feldspathic litharenite. Intergranular solution pores are the chiefly spaces for oil-gas accumulation. They are principally thin and micro-thin pore throats. Fractures in the reservoirs occur in some areas or layers. As a whole, the reservoirs possess middle-low porosity and middle-low permeability. The porosity and permeability in the Sanjianfang Formation are the best, that in the Xishanyao Formation are second best, and that in the Qiketai Formation are poor. The sandstone bodies of braid river delta and shallow lake located in the south and west of Taibei depression are important reservoirs. Sedimentary facies, diagenesis and tectonic stress are the factors influencing the reservoir ability.
Keywords:reservoir  Jurassic  Taibei depression  Turpan-Hami basin  sedimentary facies  diagenesis
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