Patent Number: 7,131,210

Title: Borehole caliper tool

Abstract: A borehole caliper tool includes a tool body and an arm coupled to the tool body. The arm is deflectable relative to the tool body. The caliper tool further includes a cam coupled to the arm such that a position of the cam changes as the arm deflects. The caliper tool further includes a proximity sensor for sensing the position of the cam, wherein the position of the cam provides an indication of the deflection of the arm relative to the tool body.

Inventors: Fredette; Mark A. (Houston, TX), Ritter; Scott (Missouri City, TX), DuPree; Wade D. (Richmond, TX)

Assignee: Schlumberger Technology Corporation

International Classification: G01B 5/12 (20060101); E21B 47/08 (20060101)

Expiration Date: 2019-11-07 0:00:00