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This study presents the fracture system analysis based on the fracture design determined by the multi-stage fracturing simulation and field data. The fracturing process was performed with the fracture interval of 90 m (9 stages) and the proppant amount for each stage of 10 tons, which were determined by the simulation. As a result, the processes for 1～8 stages were well fractured as designed, while the generated fracture in the 9th stage was not successfully propagated through the silt (upper layer) and shale (lower layer) formations. Analyzing the results comprehensively, the fracture geometry of the generated fractures have a strike of N84°E and the length, height and width of one wing are 304 m, 4 m and 12 mm, respectively.
본 연구는 캐나다 맥사미시 가스전의 친케 사암 저류층을 대상으로 다단계 수압파쇄 시뮬레이션에 의한 설계와 현장실시 작업 결과 자료에 기반하여 저류층에 파쇄된 균열의 시스템을 분석하고자 하였다. 수압파쇄 시뮬레이션을 통해 산출된 파쇄간격 90m(9 단계)와 단계별 프로판트양은 10 톤으로 하여 파쇄 작업을 실시하였다. 실시 결과, 1∼8 단계는 예상대로 파쇄되었으나, 9 단계 파쇄는 저류층 상·하부의 실트와 셰일층에 균열이 생성되지 않은 것으로 분석되었다. 이를 종합적으로 분석해 보면, 시추공 b-a15-J에 발생된 파쇄균열은 주향이 N84°E(84°), 유효균열의 한방향 길이는 304 m, 높이 4 m, 폭 12 mm의 기하학적 구조 형태로 산출되었음을 알 수 있었다.
- 문상호, 성원모, 2012, “캐나다 맥사미시 친케층 습성 가스전에서의 NGL 회수를 위한 최적 설계 연구,” 한국지구시스템공학회지, 제49권 2호, pp. 1-8.
- 서준우, 이태훈, 이영수, 성원모, 이정환, 2009, “사각균열 형태의 3차원 개별균열망 생성모델 개발,” 한국지구시스템공학회지, 제46권 3호, pp. 279-288.
- 이영수, 박정균, 서준우, 김기홍, 성원모, 2009, “2차원 수평균열자료와 1차원 FMI 공검층 수직균열자료를 통합 적용한 3차원 개별균열망 모델 연구,” 한국지구시스템공학회지, 제46권 6호, pp. 711-720.
- Barree, R.D., 1983, “A practical numerical simulator for three-dimensional fracture propagation in heterogeneous media,” SPE Reservoir Simulation Symposium, San Francisco, California, USA, November 12-13, pp. 403-414.
- Daniel, J.S. and Rocky, S., 2011, “Optimization of completions in unconventional reservoirs for higher ultimate recovery,” SPE Middle East Unconventional Gas Conference and Exhibition, Muscat, Oman, January 31-February 2, pp. 1-14.
- Darrell, L. and Daniel, J.S., 2010, “Long-term comparison of production results from open hole and cemented multistage completions in the Barnett shale,” IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Ho Chi Minh City, Vietnam, November 1-3, pp. 1-13.
- Hubbert, M.K. and Willis, D.G., 1957, “Mechanics of hydraulic fracturing” Petroleum transactions, Trans. AIME, Vol. 210, pp. 153-163.
- Maclean, B.C. and Morrow, D.W., 2004, “Bovie structure: its evolution and regional context,” Bulletin of Canada petroleum geology, Vol. 52, No. 4, pp. 302-324.
- Queena, C., Jordon G. and Mike, S., 2011, “Analysis of geomechanical data for horn river basin gas shales, NE British Columbia, Canada,” SPE Middle East Unconventional Gas Conference and Exhibition, Muscat, Oman, January 31-February 2, pp. 1-12.
- Sameer, D., Naz, H.G., Hussain, A.A., Bader, A., Ha,i L., Azmin, H.M. and Bryan, J., 2009, “Multi-stage stimulation technique boosters production for horizontal wells,” International Petroleum Technology Conference, Doha, Qatar, December 7-9, pp. 1-11.
- Samuelson M.L., Connell R., Grossman R. and Strickland B., 2008, “Optimizing horizontal completions in the Cleveland tight gas sand,” CIPC/SPE Gas Technology Symposium 2008 Joint Conference, Calgary, Alberta, Canada, June 16-19, pp. 1-11.
- Stott D.F., 1982, “Lower cretaceous fort St. john group and upper cretaceous dunvegan of the foothills and plains of Alberta, British Columbia, District of Mackenzie and Yukon territory,” Geological survey of Canada, Bulletin 328, p. 124.
- Taylor G.D. and Stott D.F., 1968, “Maxhamish lake, British Columbia,” Geological survey of Canada, Paper 68-12, p. 23.
- Publisher :The Korean Society of Mineral and Energy Resources Engineers
- Publisher(Ko) :한국자원공학회
- Journal Title :Journal of the Korean Society for Geosystem Engineering
- Journal Title(Ko) :한국지구시스템공학회지
- Volume : 49
- No :5
- Pages :670-676
Journal of the Korean Society of Mineral and Energy Resources Engineers
