Drill pipe joint

Details Drill pipe joint Drill pipe joint

1985-07-24

1986-04-22

Leppink, James A.

Boring or penetrating the earth

With tool shaft detail

Means other than tool structure to induce fluent flow

175320, E21B 1718

Patent

active

045836035

ABSTRACT:
A drill pipe joint for insertion in a drill pipe comprises a body having an axial bore therethrough and comprising generally cylindrical upper and lower portions and a widened cylindrical intermediate portion at the upper end of which at least three cutouts are formed for insertion therein of removable attached members each provided with an upwardly directed internal passage connecting the bore to an interchangeable nozzle mounted in the upper end of the passage and situated on a diameter intermediate the outside diameter of the intermediate portion and that of the upper portion of the body.
The joint is particularly suitable for passing through a zone in which circulation is lost and is arranged in the drill pipe string above the level of the zone of lost circulation.

REFERENCES:
patent: 2765146 (1956-10-01), Williams, Jr.
patent: 3908771 (1975-09-01), Garrett
patent: 4223747 (1980-09-01), Marais
patent: 4540055 (1985-09-01), Drummond et al.

Affiliated with

Also associated with

Rating

Drill pipe joint does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1910717