Field-installable rod guide
US7255165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | May 30, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A field-installable rod guide for a rod moveable within an oilfield tubular having an interior tubular surface for driving a downhole pump to pump liquids to the surface through the oilfield tubular. The rod guide comprises a body including interfitting body members. An outer tapered surface on one body member is engaged by an inner taper-engagement surface on the other body member, to urge the body members toward a rod gripping position about the rod. The mechanism disclosed provides a particularly strong engagement with the rod, so that the rod guide may be used for either reciprocating or rotating rods. For rotating type rod guides, an outer sleeve may be included about the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.