Real time torque system

Details Real time torque system Real time torque system

2008-01-11

2010-02-02

Noori, Max (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862080

Reexamination Certificate

active

07654158

ABSTRACT:
Apparatus and methods for measuring in-situ applied torque in tubular operations. A torque cylinder has a first end and a second end. A torque rod is at least partially contained in the torque cylinder and is coupled to the first end of the torque cylinder. The torque rod extends longitudinally outward from the second end of the torque cylinder. A strain gauge is connected to the torque rod at a predetermined distance from the first end of the torque cylinder. The strain gauge is configured to measure in-situ the applied torque between two tubular drill string segments each coupled to a respective one of the torque cylinder and the torque rod.

REFERENCES:
patent: 4224821 (1980-09-01), Taylor et al.
patent: 4296897 (1981-10-01), Thompson
patent: 4328872 (1982-05-01), Orthwein
patent: 4625559 (1986-12-01), Carter et al.
patent: 5831173 (1998-11-01), Hanano
patent: 6938464 (2005-09-01), Bi
Tracy Cummins, “New Tool Makes Casing Drilling Faster” in E&P, Sep. 6, 2006, pp. 1-3.

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