发明名称 PASSIVE VERTICAL DRILLING MOTOR STABILIZATION
摘要 A drilling stabilization system includes a power section coupled to an upper end of a transmission housing, a bearing housing coupled to a lower end of the transmission housing, and a drill bit coupled to the bearing housing, wherein the transmission housing includes at least two radially outwardly extending blades disposed on the transmission housing. A method of drilling a substantially concentric wellbore includes drilling a formation with a directional drilling bottomhole assembly coupled to a drill string, changing a direction of the drilling of the formation being drilled, removing the directional drilling bottomhole assembly from the drill string, coupling a drilling stabilization system to the drill string, and drilling the formation with the drilling stabilization system.
申请公布号 CA2597368(A1) 申请公布日期 2008.02.25
申请号 CA20072597368 申请日期 2007.08.15
申请人 SMITH INTERNATIONAL, INC. 发明人 MARQUEZ, HUGO ROBERTO;EVANS, NIGEL
分类号 E21B7/04;E21B4/00;E21B7/06 主分类号 E21B7/04
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