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专利名称：Portable torque tester for downhole
motors
发明人：TUONG T. LE,GUNTHER VON GYNZ-REKOWSKI
申请号：AU3888700申请日：20000316公开号：AU3888700A公开日：20001009
摘要：A simple torque-testing tool, particularly for downhole progressing-cavitymotors, easily bolts on to the bearing housing on one end and the bit box on the otherend. The assembly is first screwed together where a predetermined amount of preload isapplied to opposing clutch surfaces. Opposite ends of the housing are affixed to thebearing housing uphole and the bit box downhole and a predetermined amount of flow isrun through the stator housing. If the downhole motor is close to its design operatingparameters for a given flow rate, it should be able to drive the bit box despite the dragapplied by the opposing clutch surfaces. Failure of the downhole motor to be able toovercome the resistance from the device at the predetermined flow rate indicates thatthe motor is worn. Torque resistance is applied preferably by stacked Belleville washerswhich can be stacked in a number of arrangements to alter the amount of force. Theapplied force from the Belleville washers can be altered by rig personnel whenassembling the device. The device can be used on a variety of motor types orapplications.
申请人：INTEDYNE L.L.C.
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