Well string cutting apparatus
US4646826A · kind A · utility
74Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well cutting tool for cutting casing in a well bore having a cutter body and at least one cutting arm pivotally mounted in a longitudinally extending slot of the cutter body. The cutting arm has removable and replaceable cutting inserts positioned along its outer front surface and its lower end surface. A removable and replaceable projection on the upper end of the cutter arm is provided for contact by a fluid pressure actuated piston for outward pivoting of the cutter arm into cutting position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.