Results 21 to 30 of about 1,009,618 (111)

Composition Effect on the Pore Structure of Transitional Shale: A Case Study of the Permian Shanxi Formation in the Daning–Jixian Block at the Eastern Margin of the Ordos Basin [PDF]

Frontiers in Earth Science, 2022
Marine–continental transitional (hereinafter referred to as transitional) Permian shales are important targets for shale gas in China because of the considerable volumes of shale gas resources present in them.
Qin Zhang, Qin Zhang, Zhen Qiu, Zhen Qiu, Qun Zhao, Qun Zhao, Leifu Zhang, Leifu Zhang, Dazhong Dong, Dazhong Dong, Yuman Wang, Yuman Wang, Wei Hou, Shuxin Li, Xingtao Li   +14 more
doaj   +2 more sources

Evaluation of development effectiveness of deep coalbed methane based on flowback characteristics-a case study of the Daning-Jixian block

Frontiers in Earth Science
The efficient development of deep coal-rock gas resources, exemplified by the pioneering No. 8 coal seam (buried >2000 m) in the Daning-Jixian Block, Ordos Basin, is of strategic importance.
Wei Sun, Wei Sun, Yanqing Feng, Yanqing Feng, Yuan Wang, Yuan Wang, Xiaofeng Chen, Quan Zhang, Junpeng Zou   +8 more
doaj   +2 more sources

Diagnosis, prevention, and control of liquid accumulation in horizontal wellbores for deep coalbed methane: A case study of the Daning-Jixian block along the eastern margin of the Ordos Basin

Meitian dizhi yu kantan
ObjectiveThe Daning-Jixian block on the eastern margin of the Ordos Basin has achieved large-scale production of deep coalbed methane (CBM), with nearly 150 horizontal wells having been put into production.
Wenting ZENG, Zhiming WANG, Lei ZHANG, Zhida TIAN, Huaibin ZHEN, Anna DAI, Quanshu ZENG, Tianyang SUI   +7 more
doaj   +2 more sources

Stress-release-induced evolution of pore-fracturefracture morphology and connectivity in deep coal seams: A case study of the Daning-Jixian Block

Theoretical and Applied Mechanics Letters
Despite its potential for deep coal seam stimulation, the large scale application of stress release technology remains limited by the lack of quantitative evaluation methods and physically interpretable models for parameter optimization. In this study, a
Wenjie Yao, Haifeng Zhao, Peiyuan Li, Jielun Luo, Yawei Li   +4 more
doaj   +2 more sources

Analysis of the main controlling factors of intra-well frac hit between deep coalbed methane in Daning-Jixian block and research on countermeasures to prevent and control it

Meitan kexue jishu
With the large-scale construction and production of deep coalbed methane horizontal wells, the problem of inter-well frac hit has become more and more obvious, which seriously affects the normal production of neighboring wells. In order to avoid and slow
Ming CHEN, Junyi SUN, Liwei WANG, Lizhu YU, Haonian TIAN, Dameng WANG, Xianfeng GU, Zesong YIN, Huan ZHANG   +8 more
doaj   +2 more sources

Influence of deep coal pore and fracture structure on occurrence of coalbed methane: a case study of Daning-Jixian Block in eastern margin of Ordos Basin

Meitan kexue jishu
The pore-fracture structure of deep coal reservoir is of great significance to the evaluation and exploration of deep coalbed methane resource potential.
Ze DENG, Hongyan WANG, Zhenxue JIANG, Rong DING, Yongzhou LI, Tao WANG   +5 more
doaj   +2 more sources

Key techniques for volume fracturing of deep coalbed methane reservoirs and their applications: A case study of the Daning-Jixian block

Meitian dizhi yu kantan
BackgroundDeep coalbed methane (CBM) reservoirs generally exhibit ultra-low porosity and permeability, high stress, predominance of nanopores, and complex fracture propagation.
Shuguang LI, Xianyue XIONG, Huaibin ZHEN, Kunsen BAI, Yuan JI, Pu YUAN, Zhongbai LI, Weiping ZHU   +7 more
doaj   +2 more sources

Research and practice of four-dimensional in-situ stress fields for deep coalbed methane production: A case study of the Daning-Jixian block, Ordos Basin

Meitian dizhi yu kantan
Background Deep coalbed methane (CBM) reservoirs are characterized by well-developed microstructures and natural fractures, along with highly heterogeneous rock mechanical properties and in-situ stress field distribution.
Chengwang WANG, Yiyu CHEN, Deli GAO, Haifeng ZHAO, Gaojie CHEN   +4 more
doaj   +2 more sources

Prediction of Influencing Factors on Estimated Ultimate Recovery of Deep Coalbed Methane: A Case Study of the Daning–Jixian Block

Processes
China has vast amounts of deep coalbed methane resources but is still in the early stage of deep coalbed methane development; thus, it lacks mature gas exploitation and development theories and technologies, particularly effective methods for evaluating final recoverable reserves.
Feng Wang, Mansheng Wu, Yuan Wang, Wei Sun, Guohui Chen, Yanqing Feng, Xiaosong Shi, Zengping Zhao, Ying Liu, Shuangfang Lu   +9 more
openaire   +2 more sources

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, Genshun Yao, Shangwen Zhou, Zhe Yu, Shiluo Wang, Zhiye Gao   +5 more
wiley   +1 more source