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- W3196494728 abstract "As exploration progresses, complex block formations and mid-deep formations have become the main target areas in Bohai oil fields. In this context, well leaks and well wall instability due to special lithology are becoming more and more likely to occur, and have become the most common complications affecting the safety of drilling operations and production timing in the Bohai Sea. Geological risk prediction can give engineering hints at the design stage, so that the engineering is in a position to prepare for the risks, but because the risk prediction given on conventional seismic profiles is relatively rough, the practical application deviates greatly and cannot be closely integrated with the actual operation. In this paper, we analyze the data of leaking wells in the Bohai exploration wells, summarize the leaking well tectonic background and stratigraphy, and divide the leak-prone tectonic zone. By extracting suitable seismic attributes such as variance and waveform, fine prediction of weak (fractured) well sections is realized, and a set of fine identification techniques is formed to avoid, prevent and plug well leaks. avoid, prevent and plug well leakage. This technology has been applied in several exploration wells in the Bohai Sea, and it has played a good effect and is of great significance to promote." @default.
- W3196494728 created "2021-09-13" @default.
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- W3196494728 date "2021-08-30" @default.
- W3196494728 modified "2023-10-01" @default.
- W3196494728 title "Application of Geological Risk Fine Identification Technology in Exploration Drilling" @default.
- W3196494728 doi "https://doi.org/10.53469/jissr.2021.08(08).12" @default.
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