Journal
COMPUTERS AND GEOTECHNICS
Volume 88, Issue -, Pages 242-255Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2017.03.019
Keywords
Horizontal well; Sequential fracturing; Hydraulic fracturing; Stress interaction; Multi-stage fracturing; Simultaneous fracturing
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Funding
- China National High Technology Research and Development Program 863 [2013AA064503]
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Reservoir stimulation requires a model to evaluate the fracture path and closure for the simultaneous or sequential propagation of the hydraulic fracture (HF). This paper presents a fluid-solid coupled model to simulate multi-stage HF propagation. A non-linear joint model is proposed to evaluate the fracture closure when the created fractures are elastically propped. HF closure continues until the balance of external stress matches the proppant's resistance. The reservoir along the horizontal wellbore is not stimulated equally by the multi-stage fracturing. The HFs in the subsequent stage are 'repelled' and restrained by the HFs in the previous stage. (C) 2017 Elsevier Ltd. All rights reserved.
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