US 11,753,928 B2
Mechanical method for mapping a borehole shape usng a drilling tool
Brian Breaux, Houston, TX (US); Michael Dewayne Finke, Houston, TX (US); and John R. Hardin, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jan. 6, 2022, as Appl. No. 17/570,062.
Prior Publication US 2023/0212940 A1, Jul. 6, 2023
Int. Cl. E21B 47/08 (2012.01); E21B 17/10 (2006.01); E21B 47/13 (2012.01)
CPC E21B 47/08 (2013.01) [E21B 17/1014 (2013.01); E21B 47/13 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A bottom hole assembly, comprising:
a housing;
a caliper arm pivotally coupled to the housing at a hinge disposed within the housing, wherein the caliper arm is operable to rotate about the hinge between a first position within the housing and a second position external to the housing;
a linear actuator coupled to the caliper arm and operable to extend the caliper arm to the second position, wherein the caliper arm is biased to remain in the second position in contact with a borehole wall, and wherein the linear actuator is positioned axially relative to the caliper arm and parallel to a central axis of the bottom hole assembly; and
a sensor disposed within the housing and operable to monitor a position of the caliper arm.