发明名称 DETERMINING DRILLSTRING NEUTRAL POINT BASED ON HYDRAULIC FACTOR
摘要 A solution for determining a neutral point of a drillstring in drilling a borehole is disclosed. A method may comprise: receiving depth-time log data for drilling the borehole with the drillstring, the depth-time log data including data related to a torque and drag factor and data related to a hydraulic factor; and determining the neutral point of the drillstring at a time point during the drilling based on the torque and drag factor and the hydraulic factor.
申请公布号 WO2009085502(A3) 申请公布日期 2011.04.07
申请号 WO2008US84661 申请日期 2008.11.25
申请人 SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;MEEHAN, RICHARD;SHI, XIAO, YAN;GUIDRY, JONATHAN;FANG, YING YU (JOSEPH);LAN, LI 发明人 MEEHAN, RICHARD;SHI, XIAO, YAN;GUIDRY, JONATHAN;FANG, YING YU (JOSEPH);LAN, LI
分类号 E21B44/00;E21B47/00 主分类号 E21B44/00
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