ZHANG Long, WANG Yibing, XIAN Bao’an, et al. Applicability and mechanism of dual-tubing screen completion technology for Fukang Mining Area in Xinjiang[J]. Petroleum Reservoir Evaluation and Development, 2022, (4): 633-642.
ZHANG Long, WANG Yibing, XIAN Bao’an, et al. Applicability and mechanism of dual-tubing screen completion technology for Fukang Mining Area in Xinjiang[J]. Petroleum Reservoir Evaluation and Development, 2022, (4): 633-642. DOI: 10.13809/j.cnki.cn32-1825/te.2022.04.011.
The coal reservoir in Fukang mining area of Xinjiang has different characteristics of large inclination angle
large thickness
multiple coal seams and complex structure
and the development progress of coalbed methane(CBM) in the mining area is slow. It is urgent to find a suitable integrated development technology for CBM geology engineering conditions to provide strong guidance for the development of CBM in Xinjiang. The dual-tubing screen completion technology integrates the completion and stimulation
and has promoted and applied more than 400 CBM horizontal wells in the Qinshui Basin. The dual-tubing screen completion technology has increased the production of CBM horizontal wells from four aspects
such as hydraulic impact
carrying pulverized coal
chemical gel breaking of drilling fluid
and stress permeation
so as to help the efficient development of CBM in Fukang mining area. Based on the technical characteristics of dual-tubing screen completion
the applicability and mechanism of this technology for the development of CBM in Fukang mining area is discussed from four advantages: reservoir coal body structure
reservoir permeability recovery
reservoir pore fracture expansion
and reservoir structure
and has guiding and reference significance for the efficient development of CBM under similar reservoir geological conditions in Xinjiang.