Results 41 to 50 of about 3,983 (210)

Hydrological control mode and production characteristics of coalbed methane field in Shouyang Block

Meitan kexue jishu, 2023
The relationship between groundwater replenishment, runoff and discharge to the coal seam affects not only the degree of coalbed methane (CBM) enrichment, but also the gas production characteristics of CBM wells.
Fengfeng DU, Xiaoming NI, Yafei ZHANG, Wensheng WANG, Kai WANG   +4 more
doaj   +1 more source

Numerical Modelling of the Thermoporoelastic Behaviour of the Injection Wellbore and its Impact on CO2 Storage in Coalbeds [PDF]

, 2010
Imperial Users ...
Mohite, Shailendra, Mohite, Shailendra
core  

Methodologies for Gas Content Evaluation in Deep Coal/Shale Formations: Assessment, Improvement, and Comparison

Journal of GeoEnergy, Volume 2026, Issue 1, 2026.
Gas‐in‐place (GIP) content is a critical indicator for evaluating deep coal/shale resource potential, typically categorized into lost gas content, desorbed gas content, and residual gas content. The lost gas content cannot be directly quantified and requires specific methods for assessment.
Lingqi Liu, Jun Wang, Shuangfang Lu, Shengxian Zhao, Yongyang Liu, Feng Wang, Hongcheng He, Jihua Xie, Guohui Chen, Nengwu Zhou, Pengfei Zhang, Wenbiao Li, Sun Mengdi   +12 more
wiley   +1 more source

Transient Flow of a Horizontal Well with Multiple Fracture Wings in Coalbed Methane Reservoirs

Energies, 2020
Horizontal wells with multi-stage fractures have been widely used to improve coalbed methane (CBM) production from coalbed methane reservoirs. The main focus of this work is to establish a new semi-analytical method in the Laplace domain and investigate ...
Qing Tian, Yudong Cui, Wanjing Luo, Pengcheng Liu, Bo Ning   +4 more
doaj   +1 more source

Independent Expert Scientific Panel – Report on Unconventional Oil and Gas [PDF]

, 2014
No abstract ...
Curran, J., Gatliff, R., Haszeldine, R.S., Masters, C., Shipton, Zoe, Sorbie, K., Stuart, F., Waldron, S., Younger, P.L.   +8 more
core   +1 more source

Increasing Sorption Isotherms Accuracy: Weibull Modelling and Linear Regression [PDF]

, 2015
http://sherpa.ac.uk/romeo/search.php?issn=0144-5987Relying on an adequate mathematical approach, two different mathematical procedures can be applied to the huge database produced during gas sorption isotherm experiments in order to obtain accurate data ...
Dinis, Maria Alzira Pimenta, Lemos de Sousa, M. J., Rodrigues, Cristina   +2 more
core   +1 more source

Evaluation of Present Tectonic Stress Field and Permeability of Coalbed Methane Reservoirs by Inversion of Logging Data From Longtan Formation, Dahebian Block

Energy Science &Engineering, Volume 13, Issue 11, Page 5198-5217, November 2025.
ABSTRACT The permeability of coal reservoirs is predominantly controlled by the present tectonic stress field. This study systematically integrates macro‐ and micro‐scale analytical methods to investigate the controlling mechanisms of tectonic stress on pore‐fracture characteristics and permeability in the Longtan Formation coal reservoirs.
Guoqing He, Zhonghu Wu, Wenjibin Sun, Xianchao Yang, Jintao Zhou, Jun Yu, Baofeng Lan   +6 more
wiley   +1 more source

A Study on the Heterogeneity Characteristics of Geological Controls on Coalbed Methane Accumulation in Gujiao Coalbed Methane Field, Xishan Coalfield, China

Geofluids, 2021
Commercial exploration and exploitation of coalbed methane (CBM) in Gujiao coalbed methane (CBM) field, Xishan coalfield, have rapidly increased in recent decades. The Gujiao CBM field has shown strong gas distribution heterogeneity, low gas content, and
Taotao Yan, Shan He, Yadong Bai, Zhiyong He, Dameng Liu, Fangui Zeng, Xiaozhen Chen, Xinyu Fu   +7 more
doaj   +1 more source

Optimization Design Method and Application of Nitrogen Horizontal Well Drilling Technology in Coalbed Methane Reservoirs

Energy Science &Engineering, Volume 13, Issue 11, Page 5702-5712, November 2025.
Through the independent research and development of nitrogen drilling software, the calculation model of gas injection parameters and friction torque calculation model suitable for coalbed methane nitrogen drilling are established, and the calculation methods of construction parameters such as gas injection volume and injection pressure, friction ...
Hu Jiachen, Tan Zhanglong, Yang Fan, Hao Zhaobing, Yang Qi, Feng Lei, Wang Peng   +6 more
wiley   +1 more source

Prediction of coalbed methane productivity based on neural network models

河南理工大学学报. 自然科学版
ObjectivesThe productivity of coalbed methane is mainly affected by geological and engineering factors. Clarifying the influence mechanism of these factors on the productivity of coalbed methane wells is the basis for achieving fine reservoir ...
JIN Yi, ZHENG Chenhui, SONG Huibo, MA Jiaheng, YANG Yunhang, LIU Shunxi, ZHANG Kun, NI Xiaoming   +7 more
doaj   +1 more source