Numerical-Well-Testing Interpretation of Injection/Falloff Testing for Coalbed Methane Well in Hedong Coalfield
نویسندگان
چکیده
Numerical well testing is used mostly in oil/gas, geothermal, and coalbed methane injection/falloff well-testing interpretations while few published studies have been presented on how to adjust the models numerical experiments parameters. Meanwhile, there no simple highly applicable evaluation standard approximation degree between simulated field-measured pressure response. In this paper, seven groups of were conducted obtain The Pearson correlation coefficients grey response calculated evaluate degree. homogeneous, stress-independent, multi-layered, heterogeneous integrated models, curves all fit field data at early late time falloff period. However, highest was only found model. Finally, permeability, initial pressure, skin factor investigation radius tested CBM reservoir determined. results show that, a reliable interpretation result, it best give an response, build model, input correct parameters, such as effective thickness fluid viscosity. Otherwise, will also drop into pitfall multi-results. method we very relevant exploration safe mining Hedong coalfield.
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ژورنال
عنوان ژورنال: Energies
سال: 2023
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16134864