Semiquantitative microscopic pore characterizations of the metamorphic rock reservoir in the central paleo-uplift belt, Songliao Basin.
Semiquantitative microscopic pore characterizations of the metamorphic rock reservoir in the central paleo-uplift belt, Songliao Basin.
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DOI：
10.1038/s41598-022-05960-y
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发表时间：
2022-02-16
影响因子：
4.6
通讯作者：
Guo J
中科院分区：
文献类型：
--
作者：
Zeng Z;Shan X;Hao G;He W;Zheng C;Yi J;Guo J
目前，变质岩是天然气勘探的常见目标，而储层是制约变质岩天然气勘探开发的关键因素。松辽盆地北部古隆起中部深层变质岩气藏具有良好的勘探开发潜力。本研究采用定性描述与定量分析相结合的方法，对松辽盆地中央古隆起带变质岩储层的孔隙特征进行了综合分析，探讨了控制储层孔隙特征的因素。中央古隆起带变质岩储集层含有绿泥石片岩、云母片岩和糜棱岩三种岩性，每种岩类的原岩类型和变质历史各不相同。高压压汞和氮气吸附结果表明，片岩和糜棱岩的孔径分布不同。与糜棱岩相比，片岩具有更大的储集空间、更大的非均质性、更小的孔径、更大的比表面积和更大的吸附储气量。本文还研究了油气藏的形成过程，并将其划分为四个阶段。最后详细讨论了控制古隆起中央带变质岩储集层微观孔隙特征的因素，其中变质岩原岩是最重要的控制因素。
Currently, metamorphic rock is a common target for natural gas exploration, and reservoirs are the key factors restricting natural gas exploration and development in metamorphic rocks. The deep metamorphic rock gas reservoir in the central paleo-uplift of the northern Songliao Basin has good exploration and development potential. In this study, we use a combination of qualitative descriptions and quantitative analysis to comprehensively analyze the pore characteristics of the reservoir and explore the factors controlling the pore characteristics of the metamorphic rock reservoir in the central paleo-uplift belt of the Songliao Basin. The metamorphic rock reservoir in the central paleo-uplift belt contains three types of lithologies: chlorite schist, mica schist and mylonite, each with different protoliths and metamorphic histories. The results of high-pressure mercury intrusion and nitrogen adsorption indicate that the pore size distributions of the schist and mylonite differ. Compared with the mylonite, the schist has larger reservoir space, more heterogeneity, smaller pore size, larger specific surface area and larger adsorbed gas storage capacity. This paper also studies the formation process of the reservoir and divides it into four stages. Finally, this article discusses in detail the factors controlling the microscopic pore characteristics of metamorphic rock reservoirs in the central paleo-uplift belt; the metamorphic rock protolith is the most important controlling factor.
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影响因子：
2.1
作者：
Kostoglou, Nikolaos;Constantinides, Georgios;Rebholz, Claus
通讯作者：
Rebholz, Claus
影响因子：
1.4
作者：
Nagy, Agnes;Toth, Tivadar M.;Foeldes, Tamas
通讯作者：
Foeldes, Tamas
DOI：
10.1016/s0927-7757(02)00063-8
发表时间：
2002-07-09
影响因子：
5.2
作者：
Qi, H;Ma, J;Wong, PZ
通讯作者：
Wong, PZ
影响因子：
4.2
作者：
Schmitt, Mayka;Fernandes, Celso P.;dos Santos, Viviane S. S.
通讯作者：
dos Santos, Viviane S. S.
影响因子：
10.9
作者：
Neimark, Alexander V.;Lin, Yangzheng;Thommes, Matthias
通讯作者：
Thommes, Matthias