Wells – Processes – Freeing stuck object – grappling or fishing in well
Patent
1985-04-15
1986-09-30
Novosad, Stephen J.
Wells
Processes
Freeing stuck object, grappling or fishing in well
252 8551, E21B 3103
Patent
active
046142355
ABSTRACT:
A formulation suitable for preparation of a spotting pill effective in the release of stuck pipe in a borehole during a drilling operation which formulation contains a mono and/or poly alkylene glycol ether and viscosified sufficiently to make the formulation compatible with a solids weighting material such as barite.
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patent: 4494610 (1985-01-01), Walker
Fehler Daniel F.
Keener Ivian G.
Newlove John C.
Pober Kenneth W.
Portnoy Robert C.
Dexter R. A.
Exxon Chemical Patents Inc.
Graham R. L.
Novosad Stephen J.
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