Stress and torque reducing tool

Details Stress and torque reducing tool Stress and torque reducing tool

E - Fixed Constructions

21

B

E21B 17/02 (2006.01) F04B 47/02 (2006.01) F04B 47/12 (2006.01)

Patent

CA 2636526

A stress and torque reducing tool has a plunger that reciprocates inside of a body. The tool is connected between the pump and the sucker rod string and reduces stress transmitted therebetween. The body and plunger have longitudinally extending surfaces located at the plunger upper end portion, which surfaces cooperate and limit rotation of the body with respect to the plunger. An upper fluid port is located in an upper end of the body, while one or more lower fluid ports are located in a lower end of the body. The tool is exceptionally strong and is less likely to fail.

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