The Optimization of Production and Drainage of CMB for Multi-Branch Horizontal Well

Abstract:

The unconventional gas is the most available alternative fossil resource in China and coal bed methane is big part of it. The main characteristics of coal reservoirs are low permeability, thin formation and strong stress sensitivity. The multi-branch horizontal well is emerging technique for developing CMB and applied successfully in FanZhuang block etc. But a lot of problems need to be solved during production and drainage. Such as coal bed can easily collapse when formation pressure fall fast and strong sensitivity leads cheats system closing. In this paper the operation of CBM wells is discussed and optimized project of production drainage is presented to maximum the productivity of multi-branch horizontal well.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 1446-1450
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.1446
• Online since: September 2013
• Authors: Lei An, Zhenhua Cai, Na Si, Yu Jin Yuan
• Keywords: CBM, Multi Branch Horizontal well, Optimization, Production and Drainage

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