Back to results
US 7,575,056 B2Granted
Tubular cutting device
AssigneeBaker Hughes Incorporated
InventorsKarsten Fuhst, Sven Krueger, Matthias Moeller
Life of this patent
Estimating the term…
Abstract
The pipe cutter disclosed herein is useful for severing downhole tubulars and comprises a drive system, a pivoting system, a cutting head, and a cutting member. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blades away from the cutting head. In one embodiment, the cutting head includes a cutting member that pivotally extends from the cutting head upon rotation of the cutting head.
Claims21
A tubular cutting device comprising:
- a drive system having a drive shaft connected to a main motor;
- a cutting head coupled to the drive shaft;
- a cutting member coupled to the drive shaft;
- and
- a pivoting mechanism mechanically coupled with the cutting member on one end and to a feed motor on another end.
2 more elements
A method of cutting a tubular comprising:
- disposing a cutting tool in the tubular, wherein the cutting tool comprises a body, a main motor, a feed motor, and a cutting member;
- rotating the cutting member about the cutting member axis using the main motor;
- outwardly pivoting the rotating cutting member away from the body into cutting contact with the tubular using the feed motor;
- and
- rotating the cutting member about the body axis using the main motor thereby cutting the tubular in a spiral pattern.
2 more elements
Dependencies are inferred from the claim text.