[1]闫高原,朱炎铭,王 阳,等.贵州凤冈地区龙马溪组黑色页岩孔隙特征[J].新疆石油地质,2015,36(02):186.[doi:10.7657/XJPG20150211]
 YAN Gaoyuan,ZHU Yanming,WANG Yang,et al.PoreMicrocrack Characteristics of Longmaxi Black Shales in Fenggang Area, Guizhou Province[J].Xinjiang Petroleum Geology,2015,36(02):186.[doi:10.7657/XJPG20150211]
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贵州凤冈地区龙马溪组黑色页岩孔隙特征()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
36
期数:
2015年02期
页码:
186
栏目:
出版日期:
2015-04-30

文章信息/Info

Title:
PoreMicrocrack Characteristics of Longmaxi Black Shales in Fenggang Area, Guizhou Province
文章编号:
1001-3873(2015)02-0186-05
作者:
闫高原朱炎铭王 阳周 泽宋 昱唐 鑫
(中国矿业大学 a.资源与地球科学学院,b. 煤层气资源与成藏过程教育部重点实验室,江苏 徐州 221116)
Author(s):
YAN Gaoyuan ZHU Yanming WANG Yang ZHOU Ze SONG Yu TANG Xin
(China University of Mining and Technology, a.School of Resources & Earth Science; b.MOE Key Laboratory of Coalbed Methane Resource & Reservoir Formation Process, Xuzhou, Jiangsu221116, China)
关键词:
贵州凤冈地区龙马溪组孔隙特征扫描电镜压汞液氮吸附二氧化碳吸附
Keywords:
Guizhou province Fenggang area Longmaxi formation poremicrocrack characteristic SEM mercury injection liquefied nitrogen adsorption carbon dioxide adsorption
分类号:
TE112.221
DOI:
10.7657/XJPG20150211
文献标志码:
A
摘要:
对贵州凤冈地区龙马溪组黑色页岩进行了野外实地调研和系统采样,利用扫描电镜、高压压汞、低温液氮吸附和二氧化碳吸附等方法对所采样品进行了实验测试。结果表明,目的层储集空间以晶间孔、粒间孔、溶蚀孔和微裂隙为主,孔径多在1~10 μm,少数达10~20 μm ;压汞法测得主体孔径为5~800 nm,大于5 nm的孔径占90%以上,比表面积和孔体积分别为2.12 m2/g和0.012 8 mL/g,孔隙度为2.78%;低温液氮吸附和二氧化碳吸附试验得出的比表面积分别为12.8 m2/g和8.78 m2/g,孔体积分别为0.011 2 mL/g和 0.002 5 mL/g,孔径分别为4.67 nm和0.495 nm. 分析实验结果得出,目的层孔隙系统发育较为完善,且连通性好,同时具有较高的孔隙度,较大的比表面积和孔体积,有利于气体的吸附、运移和储集,是较好的储集层。
Abstract:
The wild field investigation and the systematic sample collection were conducted, and the collected samples were experimentally tested using SEM, mercury injection, nitrogen and carbon dioxide adsorption. The results show that the target zone is dominated by intercrystal pore, intergranular pore, corrosion pore and microcrack, with pore size of1~10μm, a few reaching10~20μm measured by SEM;5~800nm for major pore size by mercury injection, and that of larger than5nm accounts for over90%, the specific surface area and pore volume of2.12m2/g and 0.0128mL/g, respectively, and porosity of2.78%; for low-temperature liquefied nitrogen and carbon dioxide adsorption tests, their specific surface areas average12.8m2/g and8.78m2/g, pore volumes are0.0112mL/g and0.0025mL/g, pore sizes are4.67nm and0.495nm, respectively. It is concluded that the pore system of the target is more developed and connected, with higher porosity, larger specific surface area and pore volume, favorable for adsorption, migration and accumulation of shale gas as a good quality of reservoir

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[1]兰叶芳,黄树光,任戍明,等.黔西北毕节地区中二叠统碳酸盐岩成岩作用[J].新疆石油地质,2018,(05):507.[doi:10.7657/XJPG20180502]
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更新日期/Last Update: 2015-08-26