Drilling fluid containing a fluid loss control agent of a sulfon

Details Drilling fluid containing a fluid loss control agent of a sulfon Drilling fluid containing a fluid loss control agent of a sulfon

1981-10-09

1983-04-26

Pertilla, Theodore E.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

252 85C, 524596, 525500, 528147, 528150, C08L 6108, C08G 818

Patent

active

043813690

ABSTRACT:
A water-base well drilling, workover or completion fluid containing a fluid loss control agent prepared by pre-reacting sulfonated phenol with formaldehyde under alkaline conditions and then reacting the mixture with phenol under controlled conditions is described.

REFERENCES:
patent: 2560380 (1951-07-01), Wrightsman
patent: 2639274 (1953-05-01), Salathiel
patent: 2649414 (1953-08-01), Salathiel
patent: 2681312 (1954-06-01), Salathiel
patent: 3214373 (1965-10-01), Adolphson
patent: 3956140 (1976-05-01), Nahm et al.

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