US 11,732,555 B2
Adjustable strength shock absorber system for downhole ballistics
Saeed Rafie, Houston, TX (US)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Jul. 15, 2020, as Appl. No. 16/929,627.
Prior Publication US 2022/0018225 A1, Jan. 20, 2022
Int. Cl. E21B 43/116 (2006.01); E21B 43/119 (2006.01); F16F 7/00 (2006.01); F16F 7/12 (2006.01)
CPC E21B 43/119 (2013.01) [E21B 43/116 (2013.01); F16F 7/003 (2013.01); F16F 7/12 (2013.01); F16F 2224/0208 (2013.01); F16F 2226/04 (2013.01)] 20 Claims
OG exemplary drawing
 
15. A method of downhole ballistics damping, comprising:
positioning a ballistics device in a target portion of a well, wherein the ballistics device is a part of a tool string;
detonating one or more charges from the ballistic device, the detonation generating an amount of impact energy;
receiving at least a portion of the impact energy by a shock absorption module on the tool string, the shock absorption module comprising a rigid structure and an elastic body molded around the rigid structure;
at least partially plastically deforming or breaking the rigid structure due to the received impact energy; and
reducing the impact energy transferred to another portion of the tool string.