US 11,993,994 B2
Jarring tool and method of use
Roger L. Schultz, Newcastle, OK (US); Brock W. Watson, Sadler, TX (US); Gary P. Funkhouser, Moore, OK (US); and Gregory A. Kliewer, Edmond, OK (US)
Assigned to THRU TUBING SOLUTIONS, INC., Newcastle, OK (US)
Appl. No. 17/298,138
Filed by THRU TUBING SOLUTIONS, INC., Newcastle, OK (US)
PCT Filed Dec. 23, 2019, PCT No. PCT/US2019/068368
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/146143, PCT Pub. Date Jul. 16, 2020.
Claims priority of provisional application 62/789,423, filed on Jan. 7, 2019.
Prior Publication US 2021/0396088 A1, Dec. 23, 2021
Int. Cl. E21B 31/113 (2006.01); E21B 23/04 (2006.01)
CPC E21B 31/113 (2013.01) [E21B 23/04 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A jarring tool for use in a subterranean well, the jarring tool comprising:
a piston longitudinally displaceable from a first position to a second position;
a first fluid chamber having a volume that decreases in response to displacement of the piston from the first position to the second position;
a first flow controller that controls flow of fluid between the first fluid chamber and a second fluid chamber; and
a plug seat secured to the piston, in which the plug seat is configured to receive a plug which is introduced into the jarring tool when activation of the jarring tool is desired.