Increasing the clay-dissolving capability of a relatively high p

Details Increasing the clay-dissolving capability of a relatively high p Increasing the clay-dissolving capability of a relatively high p

1977-03-16

1978-05-16

Guynn, Herbert B.

Compositions

Leather or fur treating

166307, E21B 4327

Patent

active

040897877

ABSTRACT:
The clay-dissolving capability of a self-generating mud acid comprising an aqueous solution or dispersion of a fluoride salt, an ester of a 1-5 carbon atom aliphatic alcohol and a 2-5 carbon atom fatty acid suitable for use at temperatures exceeding about 180.degree. F is improved by adding an effective amount of an aminopolyacetic acid salt chelating or complexing agent.

REFERENCES:
patent: 2335689 (1943-11-01), Morgan et al.
patent: 3142335 (1964-07-01), Dill et al.
patent: 3826312 (1974-07-01), Richardson et al.
patent: 3828854 (1974-08-01), Templeton et al.

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