Floor wrench for a drilling rig
US10538976B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2014 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Mar 21, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/166
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A floor wrench for a drilling rig floor is provided. The wrench can include a tong assembly having upper and lower tongs made up of articulated tong blocks that can move and lock together to enclose and make or break a joint between sections of drilling pipe. Each tong block can include a pair of die ram assemblies wherein each tong can have dies to grip the drilling pipe around its circumference. The tong assembly can be mounted in a frame configured for horizontal and vertical movement to and from the pipe joint. In some embodiments, the wrench can further include a pipe spinner having motorized spinners that can spin the upper pipe to form the joint prior to torqueing the joint together, or for uncoupling the upper pipe after the joint is broken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.