Multi-mode cushioning an instrument suspended in a well

Details Multi-mode cushioning an instrument suspended in a well Multi-mode cushioning an instrument suspended in a well

1996-02-15

1997-01-07

Novosad, Stephen J.

Wells

Conduit wall or specific conduit end structure

175 40, 73431, E21B 1707, G01D 1110

Patent

active

055907148

ABSTRACT:
An apparatus for the protection of instrumentation placed within a drill string in a well, as during drilling comprising support structure, including a carrier sized for reception in the string, and; elastomeric structure carried by the support structure and including multiple elastomeric pads spaced about a longitudinal axis defined in the well, the pads extending generally longitudinally, and protruding in directions radially of the axis to absorb radial loading and torsional loading exerted in direction about the axis, and to deflect in said directions of radial and torsional loading.

REFERENCES:
patent: 3714831 (1973-02-01), Quichaud et al.
patent: 4223746 (1980-09-01), Tanguy et al.
patent: 4265305 (1981-05-01), Stone et al.
patent: 4817710 (1989-04-01), Edwards et al.
patent: 4901804 (1990-02-01), Thometz et al.
patent: 4932471 (1990-06-01), Tucker et al.
patent: 5320169 (1994-06-01), Delatorre
"The Gearhart MWD System" catalogue, Gearhart Industries, Inc.

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