Effect of Shale Reservoir Property and Condition of Hydraulic Fracture on Decline Curve Analysis Factor

Pan-Sang Kang; Hyo-Jin  Shin; Jong-Se Lim

doi:10.12972/ksmer.2017.54.3.223

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2017 Vol.54, Issue 3 Preview Page Next Page

Research Paper

Effect of Shale Reservoir Property and Condition of Hydraulic Fracture on Decline Curve Analysis Factor 셰일 저류층 물성 및 수압파쇄 조건에 따른 생산감퇴곡선 인자 영향 분석

30 June 2017. pp. 223-232

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Abstract

As technology advances, there has been increasing interest in developing shale gas. Analysis and estimation of shale gas production behavior are necessary for shale gas development. In this paper, simulation of shale gas production was performed depending on reservoir properties (porosity and permeability of matrix and natural fracture) and condition of hydraulic fracture (half-length and spacing). The effect of reservoir properties and the condition of hydraulic fracture on production behavior of shale gas were examined. Decline curve analysis (DCA) factors, which represent production behavior of shale gas, were derived by matching process between DCA and simulation result. The variation of shale gas production behavior was understood by analyzing the variation of DCA factors. The qualitative relationship between influential parameters (reservoir properties and the condition of hydraulic fracture) and production behavior of shale gas was identified and the degree of influence by each parameter was analyzed.

Keywords

Shale gas

Production behavior

Simulation

Decline curve analysis (DCA)

신기술의 개발에 따라 유체투과도가 매우 낮은 셰일 저류층에 부존되어 있는 가스 자원개발이 큰 관심을 받고 있다. 셰일가스 개발을 위해서는 셰일가스 생산거동 분석과 추정이 필수적이므로 이 연구에서는 셰일 저류층 물성과 수압파쇄 조건이 셰일가스 생산거동에 미치는 영향을 파악하고자 하였다. 이를 위해 셰일 저류층 모델을 이용하여 저류층 물성(암체와 자연균열의 공극률, 유체투과도), 수압파쇄 조건(수압파쇄균열 길이, 간격)에 따른 셰일가스 생산 시뮬레이션을 수행하였다. 저류층 물성과 수압파쇄 조건에 따라 생산거동 특성을 나타내는 생산감퇴곡선분석기법의 인자 변화를 파악함으로써 셰일가스 생산거동 변화를 분석하였다. 이를 통해 저류층 물성, 수압파쇄 조건과 셰일가스 생산거동 간의 관계를 파악하였고 각각의 영향 요소가 셰일가스 생산거동에 미치는 영향 정도를 도출하였다.

키워드

셰일가스

생산거동

시뮬레이션

생산감퇴곡선분석

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 54
No :3
Pages :223-232
Received Date : 2017-03-31
Revised Date : 2017-06-02
Accepted Date : 2017-06-02
DOI :https://doi.org/10.12972/ksmer.2017.54.3.223

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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