Investigating Influential Factors of the Gas Absorption Capacity in Shale Reservoirs Using Integrated Petrophysical, Mineralogical and Geochemical Experiments: A Case Study

被引:15
作者
Fan, Zhuoying [1 ,2 ]
Hou, Jiagen [1 ,2 ]
Ge, Xinmin [3 ,4 ]
Zhao, Peiqiang [5 ]
Liu, Jianyu [3 ]
机构
[1] China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
[2] China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China
[3] China Univ Petr Huadong, Sch Geosci, Qingdao 266580, Peoples R China
[4] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
[5] China Univ Geosci, Inst Geophys & Geomat, Hubei Subsurface Multiscale Imaging Key Lab, Wuhan 430074, Hubei, Peoples R China
关键词
gas adsorption capacity; shale reservoirs; influential factors; integrated methods; MISSISSIPPIAN BARNETT SHALE; NORTH-CENTRAL TEXAS; ADSORPTION CAPACITY; METHANE ADSORPTION; GEOLOGICAL CONTROLS; ORDOS BASIN; PORE STRUCTURE; STORAGE; CLASSIFICATION; MODEL;
D O I
10.3390/en11113078
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Estimating in situ gas content is very important for the effective exploration of shale gas reservoirs. However, it is difficult to choose the sensitive geological and geophysical parameters during the modeling process, since the controlling factors for the abundance of gas volumes are often unknown and hard to determine. Integrated interdisciplinary experiments (involving petrophysical, mineralogical, geochemical and petrological aspects) were conducted to search for the influential factors of the adsorbed gas volume in marine gas shale reservoirs. The results showed that in shale reservoirs with high maturity and high organic content that the adsorbed gas volume increases, with an increase in the contents of organic matter and quartz, but with a decrease in clay volume. The relationship between the adsorbed gas content and the total porosity is unclear, but a strong relationship between the proportions of different pores is observed. In general, the larger the percentage of micropores, the higher the adsorbed gas content. The result is illuminating, since it may help us to choose suitable parameters for the estimation of shale gas content.
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页数:12
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