Stabilizing and drilling apparatus and method

Details Stabilizing and drilling apparatus and method Stabilizing and drilling apparatus and method

1988-09-15

1989-11-21

Bui, Thuy M.

Boring or penetrating the earth

With tool shaft detail

E21B 1716

Patent

active

048816051

ABSTRACT:
To stabilize a drill string and to reduce or prevent wellbore deviation in directional drilling, weight rods by which weight is to be applied to drill bit are maintained free-standing and under compression within a drill string while the drill string itself is maintained in tension to limit or prevent lateral deviation of the weight rods in compression. Weight provided by the weight rods is transferred to the drill bit through a load transfer member in compression connected between the drill string and the drill bit.

REFERENCES:
patent: 3047313 (1962-07-01), Bruce
patent: 3167137 (1965-01-01), Humphrey
patent: 4310059 (1982-01-01), Moore

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