Review Article
Stimulation Techniques of Coalbed Methane Reservoirs
Table 2
The summary of gas injection for improving methane production.
| | Coal | Focused area | Research method | Gas | References |
| | Australia coal | Nitrogen displaces the CO2 | Experiment | N2/CO2 | [113] | Ishikari coalfield (Japan)
Taoyuan coal
Mine, Qingdong coal mine, and Qincheng coal mine (China) | Adsorption capacity | Experiment | N2/CO2/CH4 | [115, 116] | Sydney
Basin (Australia) | Permeability | Experiment/simulation | N2/CO2 | [114] | | — | Permeability | Simulation | CO2/CH4 | [117] | Southern Sydney
Basin (Australia),
Tashan coal mine (China) | Injection parameters | Simulation/experiment | N2/CO2 | [112, 118] | | — | Mechanical characteristics | Review | CO2 | [4] | | Tashan coal mine (China) | Mechanical characteristics | Experiment | CO2 | [119] | | San Juan basin (USA) | Reservoir modeling | Field test | N2/CO2 | [104, 105] | | Xinzhouyao coal mine and Tangshan coal mine (China) | Diffusion | Simulation/experiment | CO2/CH4 | [106] | | Pingdingshan ten coal mine (China) | Matrix swelling | Experiment | CO2 | [111] | | Sydney Basin (Australia) | Matrix swelling | Experiment | CO2/CH4 | [120] | | — | Injection parameters | Simulation | CO2/CH4 | [121, 122] |
|
|
