Technique for drilling straight bore holes in the earth

Details Technique for drilling straight bore holes in the earth Technique for drilling straight bore holes in the earth

2005-03-16

2010-12-07

Bomar, Shane (Department: 3676)

Boring or penetrating the earth

With tool shaft detail

Shaft carried guide or protector

C166S241100

Reexamination Certificate

active

07845434

ABSTRACT:
A stabilizer assembly is at least 12′ long and preferably at least 14′ long and is used to drill a straight bore hole in the earth. A central passage through the assembly closely follows a centerline as may be determined by measuring the wall thickness of the tube at a variety of locations in a single plane. At least three stabilizing sections are integral with the tube and include alternating ribs and flutes. Hardbanding on the ribs is ground down to tolerances with a grinding machine or face plate lathe having centers sufficient to receive the 12′ long stabilizer assembly.

REFERENCES:
patent: 2829864 (1958-04-01), Knapp
patent: 3250578 (1966-05-01), Lubbes
patent: 3784238 (1974-01-01), Chance et al.
patent: 3916998 (1975-11-01), Bass et al.
patent: 3938853 (1976-02-01), Jurgens et al.
patent: 4416476 (1983-11-01), Garrett
patent: 4460202 (1984-07-01), Chance et al.
patent: 4674580 (1987-06-01), Schuh et al.
patent: 4811800 (1989-03-01), Hill et al.
patent: 4874045 (1989-10-01), Clayton
patent: 5150757 (1992-09-01), Nunley
patent: 5474143 (1995-12-01), Majkovic
patent: 5542454 (1996-08-01), Carlson et al.
patent: 5697460 (1997-12-01), Stewart et al.
patent: 6012744 (2000-01-01), Wilson et al.
patent: 6349779 (2002-02-01), Gilbert
patent: 6782921 (2004-08-01), Tsuru et al.
patent: 7225868 (2007-06-01), Arai et al.
patent: 2004/0035576 (2004-02-01), Arai et al.
patent: 2007/0119626 (2007-05-01), Giroux et al.
SMF International, Drill Collars, Mar. 5, 2004, 3 pages.
Smith Services, Drill Collars-Standard & Sprial, Aug. 17, 2004, 5 pages.

Affiliated with

Also associated with

Rating

Technique for drilling straight bore holes in the earth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Technique for drilling straight bore holes in the earth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Technique for drilling straight bore holes in the earth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4167738