MULTI-PIECE ROD GUIDE FOR WELLS
First Claim
1. A guide for sucker rods comprising:
- a cylindrical profile having a first end, a second end, an outer surface, and an inner surface;
at least one internal groove along the inner surface; and
a plurality of protrusions extending from the outer surface, along the longitudinal axis of the cylindrical profile, wherein the plurality of protrusions terminate gradually to form a first plurality of bow shapes at the first end and a second plurality of bow shapes at the second end,wherein the sucker rod guide is formed from a plurality of semi-cylindrical pieces, wherein the plurality of semi-cylindrical pieces are interference fit to each other to form the cylindrical profile and the plurality of protrusions, and wherein adhesive applied to the at least one internal groove secures the plurality of pieces to the sucker rod.
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0 Petitions
Accused Products
Abstract
A guide for sucker rods comprises a cylindrical shape including an orifice for the sucker rod and four protrusions extending outwardly therefrom. The guide utilizes a symmetrical two-piece design wherein each piece comprises a semi-cylindrical shape, with one full protrusion extending the length of the guide and two half protrusions extending half the length of the guide and also beyond the semi-cylindrical profile. These two pieces are attached to each other by means of an interference fit between two pairs of interlock surfaces, one pair of which is located on the inner surface of the portion of the half-protrusions extending beyond the semi-cylindrical profile, and the other pair of which is located on the outer surface of the guide on the opposite side from the two half protrusions. Epoxy is injected into grooves along the internal surface of the cylindrical shape by means of ports extending through the rod guide.
0 Citations
20 Claims
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1. A guide for sucker rods comprising:
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a cylindrical profile having a first end, a second end, an outer surface, and an inner surface; at least one internal groove along the inner surface; and a plurality of protrusions extending from the outer surface, along the longitudinal axis of the cylindrical profile, wherein the plurality of protrusions terminate gradually to form a first plurality of bow shapes at the first end and a second plurality of bow shapes at the second end, wherein the sucker rod guide is formed from a plurality of semi-cylindrical pieces, wherein the plurality of semi-cylindrical pieces are interference fit to each other to form the cylindrical profile and the plurality of protrusions, and wherein adhesive applied to the at least one internal groove secures the plurality of pieces to the sucker rod. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13)
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6. A guide for sucker rods comprising two pieces disposed about a longitudinal axis and
defining an orifice therethrough, each of the two pieces comprising: -
a semi-cylindrical profile having a first end and a second end; an outer surface and an inner surface, the inner surface comprising at least one internal groove; a first protrusion extending from the outer surface and along the longitudinal axis of the semi-cylindrical piece, wherein the first protrusion terminates at the first end and the second end; a second and third protrusion extending from the outer surface and along the longitudinal axis, wherein the second and third protrusions each terminate at the first end and halfway between the first end and the second end, and wherein a portion of the second and third protrusions extends circumferentially beyond the semi-cylindrical profile; a first pair of interlock surfaces, wherein the first pair of interlock surfaces is located on either side of the first protrusion, near the second end of the piece; and a second pair of interlock surfaces, wherein the second pair of interlocking surfaces is located on the portion of the second and third protrusions extending beyond the semi-cylindrical profile; wherein the first pair of interlock surfaces of one of the two pieces forms an interference fit with the second pair of interlock surfaces of the other of the two pieces, wherein the second pair of interlock surfaces of one of the two pieces forms an interference fit with the first pair of interlock surfaces of the other of the two pieces, and wherein adhesive applied to the at least one internal groove secures the pieces to the rod.
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14. A method of fitting a rod guide to a sucker rod, comprising:
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molding a plurality of guide pieces having a semi-cylindrical profile and at least one interlock surface; transporting the plurality of guide pieces to an installation location having a sucker rod; applying an adhesive to an internal surface of the plurality of guide pieces; aligning the plurality of guide pieces with each other along the sucker rod; engaging the interlock surfaces of the plurality of guide pieces with each other; and applying force to the plurality of guide pieces such that the interlock surfaces deform each other to create an interference fit rod guide along the sucker rod. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification