With the sharply increasing natural gas demand, coalbed methane (CBM), one of main unconventional gas, significantly impacts international energy supply. Driven by global market related technologies have been developed. However, previous studies CBM industry mostly focused on description a single technical field, lacking integrity and versatility, unable to systematically describe development t...

A near-complete Pseudomonas stutzeri draft genome was extracted from a coalbed metagenome. The draft genome described herein provides insight into the functional pathways encoded by this bacterium and its potential role in coalbed methane environments.

As a kind of clean energy, the exploration and development coalbed methane (CBM) are great importance significance. In this paper, CBM reservoir parameters working area in Western Guizhou Province, China, were predicted by using 3D seismic technology, sweet-spot was evaluated based on prediction results. terms data interpretation, while traditional technology is extended to study CBM, new techn...

By means of secondary biogenic gas generation, Microbially Enhance Coalbed Methane (MECoM) technology is used to improve methane content in coalbed. Methanogen consortium metabolism process is the basic avenue for MECoM to yield methane with some organic compounds in coal. Detailed information about the metabolism process is needed in studying the microbial consortium mechanism. Traditional gas...

Coalbed methane (CBM) is a significant unconventional natural gas resource existing in matrix pores and fractures of coal seams cleaner energy compared to crude oil. To produce CBM, stimulation operations are required, given that the permeability generally too low. Hydraulic fracturing most widely used technology for reservoir stimulation; however, there few challenging issues associated with i...

Coal bed methane (CBM) in the coal seam is the hydrocarbon gas that mainly component methane and adsorbed on coal surface. Some Coal bed methane (CBM) free in the coal pore or dissolved in water. Coal bed methane (CBM) was emerging in nearly one hundred and twenty years of high quality clean energy. This paper is mainly introduce the characteristic of coal seam and it’s differences between home...

As an unconventional natural gas, coalbed methane (CBM) has been recognized as a significant fuel and chemical feedstock that should be recovered. Permeability is key factor controls CBM transport in coal. The slippage effect influential phenomenon occurs during gas penetration processes, especially low-permeable media. Apparent permeability may differ greatly from intrinsic due to slippage. Ho...

This study presents a reservoir modeling approach to investigate the relative effects of different coalbed parameters on the migration of methane into development entries. A base coalbed reservoir model of a three-entry development section, where grids were dynamically controlled to simulate the advance of mining at a constant section advance rate, was created and calibrated for a Pittsburgh Co...

Coalbed methane (CBM) is one kind of clean-burning gas and has been valued as a new form of energy that will be used widely in the near future. When producing CBM, the working level within a CBM wellbore annulus needs to be monitored to dynamically adjust the gas drainage and extraction processes. However, the existing method of measuring the working level does not meet the needs of accurate ad...

Expolitation of coalbed methane (CBM) involves production of a massive amount saline water that needs to be properly managed for environmental protection. In this study, direct contact membrane distillation (DCMD) was utilized for treatment of CBM-produced water to remove saline components in the water. Simulated CBM waters containing varying concentrations of NaCl (1, 20, and 500 mM) and NaHCO...