Automated sucker rod spacing device and associated methods
US11168549B2 · kind B2 · utility
1Cited by
21References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Dec 18, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/009
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automated sucker rod spacing device comprising a housing, a screw set within the housing and connected to a sucker rod string via a polished rod, a nut which is in threaded engagement with the screw, a means to transmit a rotation force to the nut, wherein the rotation of the nut can lower or raise the screw and thus lower or raise the sucker rod string. The device can be used to stop tagging, ensure full pump fillage, and avoid gas lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.