Shale reservoir network fracturing technology research and experiment
Jia Changgui,Li Shuangming,Wang Haitao, Jiang Tingxue
Strategic Study of CAE ›› 2012, Vol. 14 ›› Issue (6) : 106 -112.
Shale reservoir network fracturing technology research and experiment
Shale reservoir fracturing is the critical and center technology for shale oil and gas efficient exploration and development. Different from conventional low permeability oil and gas reservoir whose goal is to improve fracturing effectively by single fracture, the main goal of low porosity and low permeability shale is to form effective conductivity network fracture, ensuring fracturing volume large enough and economical and efficient. Proposed the concept of network effective fracturing stimulation volume of shale ( ESRV ), in reference to North American shale gas fracturing experience and the domestic shale gas fracturing based on practice, in view of Chinese specific characteristics of shale reservoir, it has been doing exploratory research in some aspects, including prefrac evaluation method, the optimization of perforating parameters, such as compound test fracturing, network fracturing methods, flowback technology and other aspects. The initial shale network fracturing technique is obtained, and it has good effect in field experiment, solving the problem of brittle shale sand of easily being screened out and low success rate.
shale / reservoir / network fracturing
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