Method for assembling a well drilling tool

Details Method for assembling a well drilling tool Method for assembling a well drilling tool

1986-08-04

1987-12-01

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Assembling or joining

29469, 29526R, 175331, 175348, 175406, 175325, B23P 1100, E21B 922, E21B 1710

Patent

active

047094621

ABSTRACT:
A drilling tool for use in drilling operations for providing shock absorption capability and lateral support to the rotary drill string. The telescoping axial load shock absorber is positioned immediately adjacent at least one lateral support provided by a reamer or stabilizer. The stabilizer preferably employs a removable fixed blade secured to the tool by an undercut groove. The roller cutter for a reamer is also mounted in a preferred unique manner with the mounting blocks secured in a recess having an undercut retainer portion in the event of bolting failure. The mounting's brackets may be formed integral of the tool body or attached by welding or the like. A preferred form of mounting a blade on a stabilizer tool is also disclosed.

REFERENCES:
patent: 3051255 (1962-08-01), Deely
patent: 4190124 (1980-02-01), Terry
patent: 4549613 (1985-10-01), Case
patent: 4589504 (1986-05-01), Simpson
patent: 4606417 (1986-08-01), Webb et al.

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