Abstract
Compared with conventional gas reservoir, percolation mechanism of coalbed methane (CBM) is completely different, it is remarkably affected by adsorption/desorption performance, pressure variation and coalbed characteristics. Then it is difficult to calculate the controlled reserves of CBM wells. Moreover, the connection of edge-bottom water or interbedded water by fractures or faults may largely increase the water yield and drainage period, leading to obvious water invasion in some CBM wells. There are few literature about the predicted production for CBM wells with high water yield. Focusing on the unconventional CBM reservoir, methods of pseudo geological reserves and production index curves are adopted to establish the calculation model of water influx and controlled reserves. It further confirms that the calculation model is successfully applicated on the CBM wells at the middle part of Qinshui Basin in China.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
