Results 31 to 40 of about 812 (103)
Geofluids, Volume 2022, Issue 1, 2022., 2022 This study focuses on the organic‐rich mud shale in the Upper Palaeozoic transitional facies in the southeastern margin of the Ordos Basin. It systematically analyzes the shale gas accumulation conditions of the organic‐rich mud shale in the Lower Permian Shanxi‐Taiyuan Formation, including the thickness, distribution, organic matter type and content ...
Xu Zeng +8 more
wiley +1 more source
Study on Downhole Throttling Characteristics of High Water Content Gas
Geofluids, Volume 2022, Issue 1, 2022., 2022 In order not to hinder gas production, we usually hope that the bottom hole effusion can be discharged to the surface with high‐pressure natural gas. For the production data of high water content gas wells, the problems of insufficient water content and liquid‐carrying capacity affecting gas well production should be considered.
Jie Zheng +7 more
wiley +1 more source
A Comparative Study of the Micropore Structure between the Transitional and Marine Shales in China
Geofluids, Volume 2021, Issue 1, 2021., 2021 To compare the micropore structure of marine‐continental transitional shale with marine shale, organic geochemical, field emission scanning electron microscopy, and low‐temperature nitrogen adsorption experiments were conducted on shale samples from the Shanxi Formation in the eastern Ordos Basin and the Longmaxi Formation in the southern Sichuan Basin.
Pengfei Jiao +5 more
wiley +1 more source
Geofluids, Volume 2021, Issue 1, 2021., 2021 Liquid nitrogen freeze‐thaw fracturing has attracted more and more attention in improving the coal reservoir permeability. In order to reveal the impact of liquid nitrogen freeze‐thaw on the multiscale structure of deep coal, the multiscale structure evolution law of deep and shallow coal samples from the same seam in the Qinshui coalfield during the ...
Yingfeng Sun +5 more
wiley +1 more source
Meitian dizhi yu kantanObjectiveDeep coalbed methane (CBM) reservoirs are characterized by ultra-low porosity, ultra-low permeability, and super saturation, rendering it impractical to copy the productivity models of shallow coalbed methane and shale gas.
Haifeng ZHAO +6 more
doaj +1 more source
Molecular simulations of the effects of CO2 and N2 injection on CH4 adsorption, coal porosity and permeability [PDF]
CO2/N2-enhanced coalbed methane recovery is an important means of increasing coalbed methane production, and understanding the competitive adsorption of CO2, CH4 and N2 in coalbeds and its impact on coal properties is important.
Hou, Quanlin +5 more
core +1 more source
Study on the coupling between the hanging- and foot-wall beds and the gas content of deep coal seams in the Linxing area, eastern margin of the Ordos Basin [PDF]
Objective The deep coalbed methane in the Linxing area at the eastern margin of the Ordos Basin has great potential for exploration and development and has become a key exploration and development target.
CHAO Weiwei +6 more
core +1 more source
Quantitative study of microscopic formation water distribution in tight gas reservoirs based on the thermogravimetric method [PDF]
The microscopic characterization of the distribution of formation water in tight gas reservoirs has always been one of the challenges in the industry.
Cheng Liu +14 more
core +1 more source