Wellbore cutting tool
US5735359A · kind A · utility
27Cited by
60References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Jun 10, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/322
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting tool has been invented for use in a wellbore to cut formation through which the wellbore extends or to cut items in the wellbore, the tool having, in one aspect, a body disposable at a desired location in the wellbore, at least one first blade pivotably mounted to the body at a first height on the body, at least one second blade pivotably mounted to the body at a second height on the body, the second height above the first height, the blades movable from a first position against the body to a second position extending out from the body for cutting, and the first blades shorter in length than the second blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.