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您的检索式：作者名="Haifeng GAI"
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| 1 | Gas genera- tion of shale organic matter with different contents of residual oil based on a pyrolysis experiment显示文摘 | Gai Haifeng Xiao Xianming Cheng Peng | 2015 | Organic Geochemis- try2015，78，： | 1 |
| 2 | Water-bearing characteristics and their effects on the nanopores of overmature coal-measure shales in the Wuxiang area of the Qinshui Basin, north China显示文摘In this study,a group of overmature coal-measure shale core samples was collected in situ from an exploration well located in the Wuxiang area of the Qinshui Basin,north China.The pore water contents(CPW)of the shales under as-received conditions,equilibrium water contents(CEW)of the shales under moisture equilibrium conditions(relative humidity:100%),and nanopore structures of the shales under both as-received and dried conditions were measured.The results indicate that the CPW values of these shales are much lower than their CEW values,which implies that the bulk pore systems of these shales have low water-bearing extents.In addition,approximately half of the total pore volumes and surface areas of the as-received shales are occupied by pore water,and the effects of pore water on shale nanopores with various pore types and widths are different.The average water-occupied percentages(PW)are 59.16%−81.99%and 42.53%−43.44%for the non-micropores and micropores,respectively,and are 83.54%−97.69%and 19.57%−26.42%for the inorganic-matter hosted(IM)and organic-matter hosted(OM)pores,respectively.The pore water in shales not only significantly reduces the storage of shale gas by occupying many pore spaces,but also causes the shale gas,especially the absorbed gas,to be mostly stored in the OM pores;meanwhile,the IM pores mainly store free gas.Therefore,the water-bearing characteristics and their effects on the pore structures and gas-bearing properties of coal-measure shales should be noted for the evaluation and exploration of shale gas in the Qinshui Basin. | Peng CHENG Xianming XIAO Hui TIAN Jian SUN Qizhang FAN Haifeng GAI Tengfei LI | 2023 | Frontiers of Earth Science2023，17，1： | 0 |
| 3 | Gas-in-Place(GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin,China显示文摘The Wufeng-Longmaxi Formation shales with burial depths > 3 500 m in the southern Sichuan Basin are believed to have large shale gas potentials.However,the reservoir properties and gasin-place(GIP) contents of these shales exhibit variations across different sublayers.In this study,a set of Wufeng-Longmaxi shales with burial depths of 4 000–4 200 m was derived from the Well Y101H2 in the Luzhou area,and the differences in geological and geochemical characteristics,porosity,water saturation and GIP content of various sublayer shales were investigated.The results indicate that the TOC content and effective porosity of the upper(LMX1-4) and lower(LMX1-3) sublayer shales of the first member of the Longmaxi Formation are better than those of the Wufeng Formation(WF) shales,which results in the LMX1-4 and LMX1-3 shales having higher GIP contents than the WF shales.The GIP contents of the LMX1-3 shales are higher than those of the LMX1-4 shales,and this is likely because the organic matter of the LMX1-3 shales had more aquatic organisms and was preserved in a stronger reductive environment,which leads to a stronger gas generation potential.In contrast to the middle-shallow LMX1-4 shales in the Sichuan Basin,the deep LMX1-4 shales in the Luzhou area have advantageous reservoir properties and GIP contents,and thus it is promising to synchronously exploit the deep LMX1-4 and LMX1-3 shales in some regions of the southern Sichuan Basin. | Wei Wu Peng Cheng Shenyang Liu Chao Luo Haifeng Gai Haitao Gao Qin Zhou Tengfei Li Kesu Zhong Hui Tian | 2023 | Journal of Earth Science2023，34，4： | 0 |
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