Results 21 to 30 of about 16,144,632 (222)

Adjustment countermeasures for efficient development of deep coalbed methane in southern Yanchuan CBM Field

open access: yesYouqicang pingjia yu kaifa, 2022
The deep underground place in China is rich in coalbed methane resources, so that it is an important field of further exploration and development of coalbed methane.
YAO Hongsheng   +4 more
doaj  

Research on directional drilling technology for superimposed “three zones” passing through goaf

open access: yesMeitan kexue jishu, 2023
Guizhou has a large amount of coal resources, which have been mined for a long period of time, resulting in the formation of a large area of goaf. There is a large amount of coalbed methane resources in the goaf, but the exploitation and utilization rate
Yi LOU   +5 more
doaj   +1 more source

Analysis of factors affecting the productivity of coalbed methane wells in Houxia Basin, Xinjiang

open access: yesMeikuang Anquan
The coalbed methane production of single-well varies widely and low in Houxia Basin, Xinjiang, indicating complexity control factors on the coalbed methane productivity. The statistical analysis, linear regression method and grey correlation mathematical
Peng LI   +5 more
doaj   +1 more source

Analysis of low production coalbed methane wells and application of secondary reconstruction technologies

open access: yes矿业科学学报, 2022
Most coalbed methane reservoirs in China are of low porosity, low permeability and with extensive structural coals, which is difficult to be reformed, resulting in low single well gas production and recovery rates.It is the the key target for the ...
Li Yong   +6 more
doaj   +1 more source

Experimental study on the velocity sensitivity of coal reservoir during coalbed methane drainage in southern Qinshui Basin

open access: yesEnergy Exploration & Exploitation, 2018
Determination of the velocity sensitivity in coal reservoirs during the different production stages of coalbed methane wells is fundamentally crucial to adopt appropriate drainage technologies. To address this need, simulation experiments of coal samples
Huihu Liu   +6 more
doaj   +1 more source

Development technology of coalbed methane horizontal wells with staged fracturing in Zhengzhuang Field of Qinshui Basin

open access: yesMeikuang Anquan, 2023
Based on the characteristics of the No.3 coal seam and No.15 coal seam in Zhengzhuang Field and the need for low-cost and high-efficiency development of coalbed methane, a technical method for enhancing coalbed methane mining in non-cemented L-type ...
LI Junfeng
doaj   +1 more source

Establishment and application of material balance equation for deep coalbed methane reservoirs based on coal formation stimulation background

open access: yesMeitan kexue jishu
In recent years, the deep coalbed methane was developed rapidly, with breakthroughs in daily production of tens of thousands of cubic meters per well in multiple deep coalbed methane blocks.
Juntai SHI   +11 more
doaj   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

open access: yesEnergy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Methanogen consortium metabolism characteristic analysis of Illinois basin by real time monitor method [PDF]

open access: yes, 2010
Microbially Enhance Coalbed Methane technology is used to improve methane content in coalbeds. The methanogen consortium metabolism process is the basic avenue for MECoM to yield methane with some organic compounds in coal. Detailed information about the
Enyuan Wang, Dong Xiao
core  

Coalbed methane in Wyoming

open access: yes, 1990
Coalbed methane in ...
R.H. DeBruin (10069876)   +1 more
core   +1 more source

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