Results 11 to 20 of about 24,816 (277)

Quantitative Evaluation of “Four Qualities” in Deep CBM Using Logging Data

Journal of Physics: Conference Series
Abstract The four qualities of deep CBM (CBM resources buried depth greater than 2000 m), including coal rock quality, reservoir quality, well completion quality, and coal seam roof and floor quality, are important factors that determine the degree of coal rock gas enrichment, preservation conditions, and effective mining.
Ping Yan, Zhou Li, Hongguo Yu, Gang Hu, Lixiang Feng, Jiayu Chen, Yanning Gao, Xin Du, Wei Wang, Deqiang Wang   +9 more
openalex   +2 more sources

Quantitative Mechanisms of Long-Term Drilling-Fluid–Coal Interaction and Strength Deterioration in Deep CBM Formations

Processes
During deep coalbed methane (CBM) drilling, wellbore stability is significantly influenced by the interaction between drilling fluid and coal rock. However, quantitative data on mechanical degradation under long-term high-temperature and high-pressure conditions are lacking.
Qiang Miao, Hongtao Liu, Yubin Wang, Wei Wang, Shichao Li, Wenbao Zhai, Kai Wei   +6 more
openalex   +2 more sources

Multi-Field Coupling Models of Coal and Gas and Their Engineering Applications to CBM in Deep Seams: A Review

Energies
In the process of deep coal seam mining, the problem of coal–gas compound disasters is increasingly prominent, with the safe and efficient extraction of gas serving as the key to disaster reduction. A deep coal seam gas extraction project is a complex coupled system involving multiple physical fields, such as stress fields, gas flow fields, and energy.
Xingying Ma, Aitao Zhou, Xiaoyu Cheng, Cheng Cheng, Wei Zhao   +4 more
openalex   +3 more sources

A Poly-Aromatic Hydrocarbon-Grafted Silicon-Quantum-Dot-Based Desorption Agent with High Salt Resistance and Its Influence on the Adsorption/Desorption Behavior of CBM in Deep Coal Rock. [PDF]

Polymers (Basel)
Li H, Yue L, Xu H, Li Y, Zhou Y, Zhang R, Wang K, Zhang H, Luo S, Ren B, Chen F, Liu Y.   +11 more
europepmc   +3 more sources

Critical technologies and geology-engineering integration practices for deep CBM production in the Yanchuannan CBM field

Meitian dizhi yu kantan
Objective and Methods This study introduces the adjustments for coalbed methane (CBM) production in the Yanchuannan CBM field‒the first deep CBM field in China.
Zhenlong CHEN, Yunhai WANG, Xiao LIU, Bin CUI, Song YANG, Xin LI, Qilong FANG   +6 more
doaj   +2 more sources

Deep coalbed methane resource and its exploration and development prospect in East China [PDF]

Youqicang pingjia yu kaifa, 2023
Deep coalbed methane（CBM） development in East China is of great significance to ensure regional energy demand, optimize regional energy structure and realize the dual carbon goal.
SANG Shuxun,HAN Sijie,ZHOU Xiaozhi,LIU Shiqi,WANG Yuejiang
doaj   +3 more sources

Evaluation of Gas-in-Place Content and Free Gas Ratioin Deep CBM of the Daning–Jixian Block: An Isotope FractionationMethod

Energy & Fuels
Feng Wang (44414), Yongzhou Li (15273079), Mo Chen (299059), Wenbiao Li (10716210), Jun Wang (5906), Yuan Wang (14955), Chunhu Li (13119467), Pengfei Zhang (32384), Lingqi Liu (22293403)   +8 more
  +4 more sources

Experimental Study on Simultaneous Crack Initiation and Extension of Cracks with Different Perforation Spacing During Deep Cbm Extraction

Jian Hou, Yulong Jiang, Kai Wang, Xiaoqiang Zhang, Tingting Cai   +4 more
openalex   +2 more sources

High Thermoelectric Performance and Defect Energetics of Multipocketed Full Heusler Compounds [PDF]

, 2020
We report a first-principles density-functional study of electron-phonon interactions in and thermoelectric transport properties of the full Heusler compounds Sr2BiAu and Sr2SbAu.
Ganose, AM, Jain, A, Ozoliņš, V, Park, J, Xia, Y   +4 more
core   +2 more sources

First-principles study of possible shallow donors in ZnAl2O4 spinel [PDF]

, 2013
ZnAl2O4 (gahnite) is a ceramic which is considered a possible transparent conducting oxide (TCO) due to its wide band gap and transparency for UV. Defects play an important role in controlling the conductivity of a TCO material along with the dopant ...
Cottenier, Stefaan, Dixit, H, Lamoen, D, Partoens, B, Saniz, R, Tandon, Nandan   +5 more
core   +1 more source