Cement composition containing chemically crosslinked polyvinyl a

Details Cement composition containing chemically crosslinked polyvinyl a Cement composition containing chemically crosslinked polyvinyl a

1996-03-27

1997-01-14

Yoon, Tae

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 2, 524 6, C04B 700

Patent

active

055940501

ABSTRACT:
The invention relates to a new, chemically crosslinked PVA. Its application is that of a fluid loss control agent in fluids used in the oil industry, in particular cement slurries, separating fluids, or "spacers", and drilling muds. Its advantages are that it does not delay the setting of the cement, that it has high temperature properties that are relatively insensitive to external conditions.

REFERENCES:
patent: 4363667 (1982-12-01), Birchall et al.
patent: 4411800 (1983-10-01), Green et al.
patent: 4490540 (1985-02-01), Marrocco
patent: 4569395 (1986-02-01), Carpenter
patent: 4896723 (1990-01-01), Hoskin et al.
patent: 4940090 (1990-07-01), Hoskin et al.
patent: 5009269 (1991-04-01), Moran et al.

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