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- W2335007989 abstract "The cost of horizontal drilling and hydraulic fracturing in shale oil and gas development is very high. In order to improve economic benefits, it is necessary to carry out the research on sweet spot discrimination immediately. This paper first analyzed the main factors of sweet spot in North American shale which contained total organic carbon content, rock brittleness, porosity and fracture. Then it was clear that rock physics analysis was the key of sweet spot discrimination, while the quantitative logging interpretation of reservoir parameter is the basis of rock physics. For the logging quantitative evaluation problem in North American shale, a kerogen-corrected logging model has been used, and the core technology and flowchart of reservoir quantitative evaluation based on elemental capture spectroscopy logging have been built in shale. On the basis of logging interpretation result, rock physics analysis has been carried out, and the results showed that the porosity was the key factor of affecting production in block A. Because P-wave impedance can characterize porosity effectively, the technology combination of pre-stack inversion and fracture analysis has been used to predict sweet spot of shale in block A. The result was used to guide drilling deployment and fracture optimization design. And the shale oil and gas production has increased greatly. The total organic carbon content and rock brittleness are the key factors of affecting shale oil and gas production in block B. So pre-stack simultaneous inversion technique was used to solve the problem of sweet spot discrimination in block B. Drilling results confirmed that the production in sweet spot region was very high." @default.
- W2335007989 created "2016-06-24" @default.
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- W2335007989 date "2014-04-24" @default.
- W2335007989 modified "2023-09-28" @default.
- W2335007989 title "Research and Application on Sweet Spot Discrimination Technology in Shale" @default.
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- W2335007989 doi "https://doi.org/10.1190/igcbeijing2014-271" @default.
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