E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/00 (2006.01) E21B 7/04 (2006.01) E21B 29/06 (2006.01)
Patent
CA 2426339
There is provided a mill for milling an opening in a tubular comprising a body having an upper end connectable to a drill string, a lower end provided with milling and/or cutting material, a first fluid flow bore extending generally axially of the body, a second fluid flow bore extending from the first fluid flow bore and opening in the exterior of the body substantially on the rotational axis thereof, and a plurality of inclined fluid flow bores extending from the first fluid flow bore and opening in the exterior of the body around the second fluid flow bore, characterised in that the second fluid flow bore is lined with a layer of milling and/or cutting material, at least one of the inclined fluid flow bores is also provided with a layer of milling and/or cutting material, the second fluid flow bore is of smaller diameter than the first fluid flow bore, and the inclined fluid flow bores are of smaller diameter than the second fluid flow bore, at least before the application of the lining of cutting and/or grinding material thereto.
Blizzard William A. Jr.
Halford Hubert E.
Langford Dale E.
Mcfadden Fincham
Weatherford/lamb Inc.
LandOfFree
Method for forming a window in a tubular and apparatus for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for forming a window in a tubular and apparatus for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming a window in a tubular and apparatus for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1924490