Method and apparatus for guiding and sealing a drill string

Details Method and apparatus for guiding and sealing a drill string Method and apparatus for guiding and sealing a drill string

1974-12-16

1976-06-29

Novosad, Stephen J.

Boring or penetrating the earth

Processes

Boring with specific fluid

173 35, 173 43, 173 52, 175209, E21B 1914, E21B 1916, E21C 900

Patent

active

039659976

ABSTRACT:
A method and apparatus for guiding and sealing a drill string during drilling. The drill string is formed with an increased diameter at the portions where two adjacent rods are connected. The guiding and sealing of the rods is maintained by means of hydraulically operated guide jaws in a drill rod centralizer. The increased diameter portions are guided and sealed by means of tubular members located rearwardly and forwardly of said jaws. The drill rod centralizer is mounted on a saddle which is slidable along a feed bar. The drill rod centralizer is connected to means for removing drill dust and may be provided with a tubular portion for guiding the drill bit during collaring of a new hole.

REFERENCES:
patent: 2041689 (1936-05-01), Baumeister et al.
patent: 2730333 (1956-01-01), Lenhart, Jr. et al.
patent: 2734724 (1956-02-01), Larcen
patent: 2781185 (1957-02-01), Robbins
patent: 2849212 (1958-08-01), Robbins
patent: 3498674 (1970-03-01), Matthews

Affiliated with

Also associated with

Rating

Method and apparatus for guiding and sealing a drill string 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 and apparatus for guiding and sealing a drill string, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for guiding and sealing a drill string will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1271318