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Hydraulic fracture extending into network in shale: reviewing influence factors and their mechanism.


ABSTRACT: Hydraulic fracture in shale reservoir presents complex network propagation, which has essential difference with traditional plane biwing fracture at forming mechanism. Based on the research results of experiments, field fracturing practice, theory analysis, and numerical simulation, the influence factors and their mechanism of hydraulic fracture extending into network in shale have been systematically analyzed and discussed. Research results show that the fracture propagation in shale reservoir is influenced by the geological and the engineering factors, which includes rock mineral composition, rock mechanical properties, horizontal stress field, natural fractures, treating net pressure, fracturing fluid viscosity, and fracturing scale. This study has important theoretical value and practical significance to understand fracture network propagation mechanism in shale reservoir and contributes to improving the science and efficiency of shale reservoir fracturing design.

SUBMITTER: Ren L 

PROVIDER: S-EPMC4083885 | BioStudies | 2014-01-01

SECONDARY ACCESSION(S): 10.1155/2014/847107

REPOSITORIES: biostudies

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