Casing perforator

Details Casing perforator Casing perforator

1977-09-26

1979-08-28

Purser, Ernest R.

Wells

Means for perforating, weakening, bending or separating pipe...

Perforating or splitting cutter

166298, 1661175, 175267, 30104, E21B 43112

Patent

active

041657845

ABSTRACT:
The present invention involves a tool for connection to a conventional drill string and operation therewith for punching holes in a standard casing located within a well bore to pass water or gas therethrough for recovery at the well bore surface, the invention involving a pivotally arranged blade that can be extended by air, water, or mud that has passed through the drill string to impinge on a trigger end of that blade, a point end thereof engaging the casing wall whereafter, by forcing the drill string and tool downwardly, the blade pointed end will puncture the casing, removal of the blade from the casing wall involving only ceasing passing of air or fluid against the blade trigger and lifting of the drill string and connected tool. The tool also involves a backup arrangement for connection to the tool body to increase the diameter thereof to allow the tool to be used in a number of different sizes of casings.

REFERENCES:
patent: 537087 (1895-04-01), Travis
patent: 946204 (1910-01-01), Damon
patent: 1417331 (1922-05-01), Keller
patent: 1779652 (1930-10-01), Wood
patent: 1874880 (1932-08-01), Brotherton et al.
patent: 3382938 (1968-05-01), Williams, Jr.

Affiliated with

Also associated with

Rating

Casing perforator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Casing perforator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casing perforator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-764954