Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Marcel Obrejanu0
Date of Patent
June 14, 2016
0Patent Application Number
138008580
Date Filed
March 13, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A mandrel harnesses torque from a progressing cavity pump stator to which it is coupled. Operation of the pump rotor induces a torque on the pump stator, and that torque is harnessed by the mandrel. A rate of rotation of the mandrel due to the torque from the pump stator is controlled, and the rotation rate is hydraulically reduced in an embodiment. A rotation in a direction opposite to a direction of rotation of the mandrel due to the torque from the pump stator is applied to a production tubing string. The direction of rotation of the mandrel could be reduced and applied to the production tubing string by a planetary gear system, for example.
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