Measuring and testing – Borehole or drilling – Downhole test
Patent
1999-03-22
2000-11-28
Raevis, Robert
Measuring and testing
Borehole or drilling
Downhole test
G01L 312
Patent
active
061519626
ABSTRACT:
A simple torque-testing tool, particularly for downhole progressing-cavity motors, easily bolts on to the bearing housing on one end and the bit box on the other end. The assembly is first screwed together where a predetermined amount of preload is applied to opposing clutch surfaces. Opposite ends of the housing are affixed to the bearing housing uphole and the bit box downhole and a predetermined amount of flow is run through the stator housing. If the downhole motor is close to its design operating parameters for a given flow rate, it should be able to drive the bit box despite the drag applied by the opposing clutch surfaces. Failure of the downhole motor to be able to overcome the resistance from the device at the predetermined flow rate indicates that the motor is worn. Torque resistance is applied preferably by stacked Belleville washers which can be stacked in a number of arrangements to alter the amount of force. The applied force from the Belleville washers can be altered by rig personnel when assembling the device. The device can be used on a variety of motor types or applications.
REFERENCES:
patent: 2731864 (1956-01-01), Davies et al.
patent: 3208316 (1965-09-01), Scribner
patent: 3898875 (1975-08-01), Knoop et al.
patent: 3969961 (1976-07-01), Amoroso
patent: 4176548 (1979-12-01), Cyphelly
patent: 4199032 (1980-04-01), Weiner et al.
patent: 4364277 (1982-12-01), Rundell
patent: 4520681 (1985-06-01), Moore et al.
patent: 4552042 (1985-11-01), Beymer
patent: 4605107 (1986-08-01), Hallidy et al.
patent: 4682505 (1987-07-01), Morissette et al.
patent: 5456123 (1995-10-01), Parkinson
PMV, Inc., Port-A-Dyno, Advertisement, date unknown, 1 page.
Eaton Corporation, Airflex Clutches and Brakes Catalog No. 800, 1990, 2 pages.
Gynz-Rekowski Gunther von
Le Tuong T.
Intedyne, LLC
Raevis Robert
LandOfFree
Portable tester for downhole motors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable tester for downhole motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable tester for downhole motors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1713486