准南上二叠统芦草沟组非常规油气储层特征

发布时间：2018-02-14 11:35

本文关键词： 细粒沉积岩储层芦草沟组非常规油气准噶尔盆地南缘　出处：《岩性油气藏》2017年05期 　论文类型：期刊论文

【摘要】：为了深化准噶尔盆地南缘阜康—乌鲁木齐段非常规油气资源的认识,通过野外地质调查、岩心观察、薄片鉴定、样品分析测试等对上二叠统芦草沟组非常规储层特征进行了详细研究。结果表明:构成非常规油气储层的岩石类型有3种,分别为以粉砂岩为主的细粒沉积岩、以黏土岩为主的细粒沉积岩及碳酸盐岩;芦草沟组上段、中段和下段炭质细粒沉积岩密度分别为2.3~2.8 g/cm~3,2.3~2.4 g/cm~3和2.4~2.5 g/cm~3。炭质细粒沉积岩密度与TOC含量具有较好的负相关性,孔隙度以0~2%为主,渗透率以0~0.1 mD为主,比表面积以0.1~0.5 m~2/g及1.0~2.0 m~2/g为主。芦草沟组非常规油气储集空间类型由纳米—微米级微孔和2期构造缝隙构成。
[Abstract]:In order to deepen the understanding of unconventional oil and gas resources in the Fukang-Urumqi section of the southern margin of Junggar Basin, through field geological survey, core observation, and thin slice identification, The characteristics of unconventional reservoirs in the Upper Permian Lucaogou formation are studied in detail by sample analysis and testing. The results show that there are three types of rocks that constitute unconventional oil and gas reservoirs, which are mainly siltstone sedimentary rocks. The density of carbonaceous fine sedimentary rocks in the upper, middle and lower member of the Lucaogou formation is 2. 3 ~ 2. 8 g / cm ~ (-1) and 2. 3 ~ 2. 3 / cm ~ (3) C ~ (2. 3) and 2. 4 ~ 2. 5 g / cm ~ (3) 路cm ~ (3) respectively. There is a good negative correlation between the density of carbonaceous fine sedimentary rocks and the content of TOC. The porosity is 0 ~ 2%, the permeability is 0 ~ 0. 1 MW, the specific surface area is 0. 1 ~ 0. 5 m ~ (2 / g) and 1.0 ~ 2. 0 m ~ (2 / g). The unconventional hydrocarbon reservoir space type of Lucaogou formation is composed of nanometer-micron micropores and 2 phase structural gaps.
【作者单位】：中国地质调查局成都地质调查中心;
【基金】：新疆维吾尔自治区地勘基金项目“新疆准噶尔盆地南缘重点远景区页岩气调查评价”(编号:N13-4-XJ02)资助
【分类号】：P618.13

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