发明申请
US20130146361A1 APPARATUSES AND METHODS FOR STABILIZING DOWNHOLE TOOLS 有权
用于稳定井下工具的装置和方法

APPARATUSES AND METHODS FOR STABILIZING DOWNHOLE TOOLS
摘要:
A secondary cutting structure for use in a drilling assembly includes a tubular body, and a block, extendable from the tubular body, the block including a first arrangement of cutting elements disposed on a first blade, a first stabilization section disposed proximate the first arrangement of cutting elements, a second arrangement of cutting elements disposed on the first blade, and a second stabilization section disposed proximate the second arrangement of cutting elements. A method of drilling includes disposing a drilling assembly in a wellbore, the drilling assembly including a secondary cutting structure having a tubular body and a block, extendable from the body, the block including at least three blades, actuating the secondary cutting structure, wherein the actuating includes extending the block from the tubular body, and drilling formation with the extended block
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