Dual rotating stripper rubber drilling head

Details Dual rotating stripper rubber drilling head Dual rotating stripper rubber drilling head

1991-12-20

1993-05-25

Bui, Thuy M.

Wells

Above ground apparatus

Releasable seal or cleaner disengaged by projection on inner...

166 84, 175195, E21B 33068

Patent

active

052131580

ABSTRACT:
A drilling head with dual rotating stripper rubbers designed for high pressure drilling operations ensuring sealing under the extreme conditions of high flow or high pressure wells such as horizontal drilling. The dual stripper rubbers seal on the same diameter yet are manufactured of different materials for different sealing functions. The lower stripper rubber is manufactured from a more rigid, abrasive resistant material to divert the flow from the well. The upper stripper rubber is manufactured of a softer sealing material that will closely conform to the outer diameter of the drill string thereby preventing the flow of fluids through the drilling head.

REFERENCES:
patent: 2222082 (1940-11-01), Leman et al.
patent: 2846247 (1953-11-01), Davis
patent: 3400938 (1968-09-01), Williams
patent: 3934887 (1976-01-01), Biffle
patent: 3965987 (1976-06-01), Biffle
patent: 4143880 (1979-03-01), Bunting et al.
patent: 4154448 (1979-05-01), Biffle
patent: 4293047 (1981-10-01), Young
patent: 4363357 (1982-12-01), Hunter
patent: 4367795 (1983-01-01), Biffle
patent: 4423775 (1984-01-01), Wilson
patent: 4423776 (1984-01-01), Wagoner et al.
patent: 4441551 (1984-04-01), Biffle
patent: 4500094 (1985-02-01), Biffle
patent: 4531580 (1985-07-01), Jones
patent: 4955436 (1990-09-01), Johnson

Affiliated with

Also associated with

Rating

Dual rotating stripper rubber drilling head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual rotating stripper rubber drilling head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual rotating stripper rubber drilling head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-891825