Continuous sucker rod and method of using same

Details Continuous sucker rod and method of using same Continuous sucker rod and method of using same

2007-03-05

2010-06-08

Wright, Giovanna C (Department: 3672)

Wells

With below and above ground modification

Eduction pump or plunger in well

C166S105000, C166S369000, C166S242600, C403S268000

Reexamination Certificate

active

07730938

ABSTRACT:
A continuous sucker rod preferably comprising fiberglass or composite material for use in an well is described herein. The continuous sucker rod may be connected at one end to a pump drive, via a polished rod, and at a second end to a downhole pump, via sinker bars or other weights. The continuous sucker rod preferably has at least two end fittings, one at each end of the continuous sucker rod. The end fittings, each having two ends and each being attached, at one end, to a respective end of the continuous sucker rod. The end fittings are preferably configured to enable connection to the polished rod and sinker bars respectively. The end fittings are connected to the continuous sucker rod so as to form wedges which enhance the connectability of the end fitting to the rod, and further, the wedge or wedges approach the rod asymptotically so as to avoid any abrupt discontinuities in the wedge or wedges thus substantially eliminating stress concentration areas and potential failure areas in the rod.

REFERENCES:
patent: 3168340 (1965-02-01), Howard
patent: 4563391 (1986-01-01), Tanner et al.
patent: 6193431 (2001-02-01), Rutledge
patent: 6886484 (2005-05-01), Thomas

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