US 11,708,739 B2
3D printed tool with integral stress concentration zone
James Dan Vick, Jr., Dallas, TX (US); Kevin Robin Passmore, McKinney, TX (US); Shaun Wen Jie Ng, Singapore (SG); and Robert Arthur Rademaker, The Colony, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Feb. 17, 2021, as Appl. No. 17/177,313.
Application 17/177,313 is a division of application No. 16/072,611, granted, now 10,954,743, previously published as PCT/US2016/022268, filed on Mar. 14, 2016.
Prior Publication US 2021/0164319 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 33/129 (2006.01); B25J 9/16 (2006.01); B33Y 80/00 (2015.01)
CPC E21B 33/1292 (2013.01) [E21B 33/129 (2013.01); B25J 9/16 (2013.01); B33Y 80/00 (2014.12)] 10 Claims
OG exemplary drawing
 
1. A subsurface tool adapted to extend within a wellbore, comprising:
an integrally formed single-component body that defines an external surface; and
an internal chamber fully isolated within a wall thickness of the single-component body and isolated from the external surface;
wherein, when the tool is subjected to one or more stresses, a stress concentration is created within a stress zone of the single-component body, the stress zone being adjacent the internal chamber.