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- W2348415642 abstract "The reaming difficulty in deep wells and highly deviated wells has so far not yet been solved satisfactorily.The traditional method is to use hydraulic reamer to carry out post-drilling hole enlargement.However,the post-drilling reaming practice shows that with the increase in hole inclination the difficulty increases in post-drilling reaming.Post-drilling reaming is generally conducted within 32° in directional wells.Therefore,the 5 3/4 in×5 1/2 in×4 3/4 in CSDR5211S-B2 directional reaming while drilling(DRWD) reamer bit was introduced.The reamer bit pressure distribution relation has remarkable effect on tool face stability and rate of penetration.The property of DRWD bit was introduced.The WOB distribution relation was analyzed,thereby the WOB distribution was optimized.The optimized result was applied in the DRWD test in Well TH10410CH2 in Tahe Oilfield.The application shows that the maximum DRWD WOB in operation is no more than 40 kN according to the WOB required by the eccentric part of reamer bit.Under the WOB condition of 20~40 kN there is no pressure building and boost in the process of DRWD.The tool face is stable,the hole trajectory is smooth and the rate of penetration is high.This indicates that the optimized WOB for this well is reasonable." @default.
- W2348415642 created "2016-06-24" @default.
- W2348415642 creator A5038347987 @default.
- W2348415642 date "2013-01-01" @default.
- W2348415642 modified "2023-09-25" @default.
- W2348415642 title "WOB Distribution and Optimization in the Directional Reaming While Drilling" @default.
- W2348415642 hasPublicationYear "2013" @default.
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