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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 779 - 789 (11page)
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The economic success of shale gas plays depends expansively on the brittle-ductile behavior of shale rock for effective hydraulic fracturing. Successful hydraulic fracturing requires targeting the most brittle rocks. Therefore it is worthwhile to classify the shale regarding brittle and ductile zones. To study the impact of brittleness indices in the brittle-ductile transitional zone, we have estimated the mineralogy-based brittleness index, TOC (total organic carbon), pore pressure and geomechanical properties from well logs and core description laboratory measurements. The petrophysical model of Sembar shale from Indus basin Pakistan was compared to brittleness index, organic contents, and pore pressure to differentiate the transitional zones in shale gas reservoirs. The result shows that constant change in rock minerals distribution and brittleness index follow the trend in TOC content, in brittle- ductile and transitional zone. Also, the data was plotted in λρ-μρ lithology templates and plots of Young’s modulus and Poisson’s ratio, shale with high quartz and clay contents trap in less ductile to less brittle zone while shale with abundant quartz and low clay contents give rise in the brittle zone. The observations of this study support the previous research idea by suggesting the zones of brittle and transition controlled by TOC to design the hydraulic fracture more efficient.
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참고문헌 (29)
참고문헌 신청
Alassi, H. T. / 2011 / Realistic geomechanical modeling of hydraulic fracturing in fractured reservoir rock / Canadian Unconventional Resources Conference
Bowers G. L. / 2001 / Determining an appropriate pore-pressure estimation strategy / Annual Offshore Technology Conference (OTC 13042) :921~934
Bai, M. / 2016 / Why are brittleness and fracability not equivalent in designing hydraulic fracturing in tight shale gas reservoirs / Petroleum 2(2016):1~19
Carpentier, B. / 1991 / Wireline logging and source rocks estimation of organic carbon content by the Carbolog method / The Log Analyst 32:279~297
Ben A. Eaton / 2013 / The Effect of Overburden Stress on Geopressure Prediction from Well Logs / Journal of Petroleum Technology 24(08):929~934
Bowers G. L. / 2001 / Determining an appropriate pore-pressure estimation strategy / Annual Offshore Technology Conference (OTC 13042) :921~934
Bai, M. / 2016 / Why are brittleness and fracability not equivalent in designing hydraulic fracturing in tight shale gas reservoirs / Petroleum 2(2016):1~19
Carpentier, B. / 1991 / Wireline logging and source rocks estimation of organic carbon content by the Carbolog method / The Log Analyst 32:279~297
Ben A. Eaton / 2013 / The Effect of Overburden Stress on Geopressure Prediction from Well Logs / Journal of Petroleum Technology 24(08):929~934
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