생산천이분석을 이용한 Eagle Ford 셰일 저류층의 다단계 수압파쇄설계 개선 연구

Abstract

Multi-stage hydraulic fracturing has become common and proved technology to develop tight reservoirs such as shale for commercial production. Since production performance for shale reservoir highly depends on applied hydraulic fracture design, it remains a continuous challenge for the industry for improvement. In this study, rate transition analysis has been performed to estimate fracture geometry for various fracture design with different fluid selection in order to gain insight into their effect on production performance in U.S. Eagle Ford shale. The uncertainties on both reservoir properties and fracture distributions have been quantified by the probabilistic rate transient analysis using Monte-Calro simulation. Through the studies, the guidance on fracturing design has been derived by analyzing the relationship with fracture geometry growth with each design application based on Multi-stage hydraulic fracturing has become common and proved technology to develop tight reservoirs such as shale for commercial production. Since production performance for shale reservoir highly depends on applied hydraulic fracture design, it remains a continuous challenge for the industry for improvement. In this study, rate transition analysis has been performed to estimate fracture geometry for various fracture design with different fluid selection in order to gain insight into their effect on production performance in U.S. Eagle Ford shale. The uncertainties on both reservoir properties and fracture distributions have been quantified by the probabilistic rate transient analysis using Monte-Calro simulation. Through the studies, the guidance on fracturing design has been derived by analyzing the relationship with fracture geometry growth with each design application based on