US 11,654,506 B2
Processing route to design and manufacture highly configurable non-magnetic down-hole sensor collars
Krutibas Panda, Houston, TX (US); Michael Dewayne Finke, Houston, TX (US); Brian David Breaux, Houston, TX (US); and Gregory D. Stark, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 22, 2021, as Appl. No. 17/508,398.
Prior Publication US 2023/0130962 A1, Apr. 27, 2023
Int. Cl. B23K 20/12 (2006.01); E21B 17/00 (2006.01); E21B 17/04 (2006.01); B23K 101/04 (2006.01)
CPC B23K 20/121 (2013.01) [B23K 20/129 (2013.01); E21B 17/006 (2013.01); E21B 17/04 (2013.01); B23K 2101/04 (2018.08)] 20 Claims
OG exemplary drawing
 
1. A method of constructing a downhole drill collar, the method comprising:
rotating a first segment of the drill collar with respect to a second segment of the drill collar about a central axis extending through the first and second segments;
applying a longitudinal force between the first and second segments to abut longitudinal ends of the segments while rotating the first segment with respect to the second segment to generate frictional heat between the segments;
decelerating the relative rotation between the first and second segments such that first and second segments come to rest at a predetermined circumferential orientation with one another and a solid-state weld is formed between the segments at least in part by the frictional heat generated;
circumferentially aligning a feature defined on the first segment with a feature defined on the second segment by decelerating the relative rotation between the first and second segments, wherein features defined on the first and second segments are lateral channels extending through the first and second segments at the same radial distance from the central axis, and
establishing fluid communication between the lateral channels of the first and second segments when the sold-state weld is formed.