Modeling of Multi-Stage Hydraulic Fracture Propagation

다단계 수압파쇄균열 전파 모델링 연구

  • Received : 2015.07.28
  • Accepted : 2015.09.20
  • Published : 2015.10.30


This paper presents a hydraulic fracture propagation model to describe propagation more realistically. In propagating the hydraulic fractures, we have used two criteria: maximum tangential stress to determine the fracture initiation angle and whether a hydraulic fracture intersects a natural fracture. The model was validated for the parameters relevant to fracture propagation, such as initiation angle and crossing ability through natural fracture. In order to check whether a hydraulic fracture crosses a natural fracture, the model results on crossing state excellently matched with the experimental data. In the sensitivity analysis for direction of maximum horizontal stress, frictional coefficient of fracture interface, and natural fracture orientation, the results show that hydraulic fracture intersects natural fracture, and then, propagated suitably with theoretical results according to fracture interaction criterion. In comparison of this model against vertical fracture approach, it was ascertained that there are discrepancies in fracture connectivity and stimulated reservoir volume.


multiple planar fracture;hydraulic fracture propagation;natural fracture;shale gas reservoir


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Grant : 셰일저류층의 생산성 분석 및 균열망 매핑 모듈개발 용역

Supported by : 한국석유공사