Torque limiter for auger gravel pack assembly
US5323852A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Nov 3, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An auger gravel pack screen or other wellbore device is driven by a workstring which includes a torque-limiting device interposed therein to limit the maximum torque exerted on the screen during augering into a gravel packing in a well bore. The torque-limiting device includes driving and driven mandrels with removable shear pin support parts connected to the mandrels, respectively, and supporting plural shear pins through which driving torque is exerted on the device. An alternate embodiment includes a slip clutch with cooperating lobed clutch members. An axially translatable nut is disposed in a fluid-filled chamber between the mandrels and is operable to permit controlled rotation of the mandrels relative to each other when the limit torque is exceeded to absorb torsional deflection energy built up in the workstring without damaging the workstring or the gravel pack screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.