Wells – Guide for device or conduit – On sucker or pump rod
Reexamination Certificate
2008-01-17
2010-12-21
Bomar, Shane (Department: 3676)
Wells
Guide for device or conduit
On sucker or pump rod
C166S241100, C166S241200, C166S241400
Reexamination Certificate
active
07854259
ABSTRACT:
A rod guide is provided for use in a rotating rod string (12) for powering a progressive cavity pump (14) for pumping downhole fluids through tubing (16) to the surface. The rod guide includes a rotor sleeve (20) secured to the rod string. The rotor sleeve includes a plurality of axially spaced reduced diameter body portions22, and a plurality of axially spaced enlarged diameter ridge portions24. Upper and lower stop surfaces26, 28on the ridge portions permit axial movement of the stator sleeve with respect to the rotor sleeve. A stator sleeve (40) positioned over the rotor sleeve, and has a sleeve body (42) with a generally circular configuration with opposing circumferential ends (44, 46) spreadable to position the stator sleeve about the rotor sleeve. A plurality of ribs (48) extend outward from the stator sleeve body.
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R&M Energy Systems, New Era Rod Guides (Rotating), Spin-Thru & Spin-Thru II, 2008, www.rmenergy.com
ewera—rotating.html.
Bomar Shane
Browning & Bushman P.C.
Harcourt Brad
Robbins & Myers Energy Systems L.P.
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