Thermally stable drilling fluid additive comprised of a copolyme

Details Thermally stable drilling fluid additive comprised of a copolyme Thermally stable drilling fluid additive comprised of a copolyme

1984-12-28

1986-06-17

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526288, 526287, 5263075, 526310, 526313, 252 85C, C08F12204, C08F 1224, C09K 700

Patent

active

045957363

ABSTRACT:
This invention relates to a water soluble polymer and method for its preparation. The water soluble polymer exhibits superior thermal stability characteristics when used as an additive in aqueous drilling fluids. The polymer consists of a major portion of a catechol based monomer and a dicarboxylic acid. Other monomers and materials are added to enhance the functional characteristics of the drilling fluid additive. The method of this invention includes the mixing of monomers, polymerization of that mixture and optionally the steps of hydrolysis and sulfonation.

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