Method and apparatus for anchoring tool in borehole conduit

Details Method and apparatus for anchoring tool in borehole conduit Method and apparatus for anchoring tool in borehole conduit

2007-08-07

2007-08-07

Gay, Jennifer H. (Department: 3672)

Wells

Expansible anchor or casing

Expansible means translated by wedge or cam

C073S152560, C166S250130, C166S382000

Reexamination Certificate

active

10853595

ABSTRACT:
A free point tool has at least one sensor to measure deformation of a stuck conduit in a borehole. A set of anchors is located adjacent to and on each side of the sensor. The anchors include anchor arms that move from a stowed position to an extended position. Each of the anchor arms has a pad, which pad has a contact face. The contact face is structured and arranged to engage the conduit. The pad is coupled to the respective anchor arm in an articulating manner, such as by a pin joint or a ball and socket joint. The pad can be easily coupled to or disconnected from the arm. This allows the pad to be selected for the downhole conditions, including conduit physical characteristics and environmental conditions downhole. The anchors also include cam arms coupled between the anchor arms and an actuator. There are provided at least two sets of anchor linkages of cam arms and anchor arms so as to adapt to the conduit inside diameter.

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