Ski-type stabilizer for drilling apparatus, and method of use

Details Ski-type stabilizer for drilling apparatus, and method of use Ski-type stabilizer for drilling apparatus, and method of use

1977-04-13

1978-07-04

Blix, Trygve M.

Cutlery

166241, F16C 126

Patent

active

040985440

ABSTRACT:
Apparatus for aligning, supporting and stabilizing a drill string within a hole that is being drilled includes three elongated ski-like members which are disposed in circumferentially spaced positions about the drill string and in supporting engagement with the hole wall. Rotating bearing structures carried by the drill string are secured to the interior side of the ski-like members. The ski-like members are made in a number of longitudinal sections that are removably fastened together.
According to the disclosed method, as the drill string is being extended and driven into the hole the ski-like members are assembled a section at a time and in such manner as not to interfere with the extension of the drill string.

REFERENCES:
patent: 2696367 (1954-12-01), Robishaw
patent: 2971582 (1961-02-01), Marsh
patent: 3933203 (1976-01-01), Evans

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