3828854 is referenced by 167 patents and cites 10 patents.

Siliceous materials in or around a well are dissolved by contacting them with a self-acidifying aqueous liquid system comprising an aqueous solution of at least one water-soluble fluoride salt mixed with a relatively slowly-reactive acid-yielding material that subsequently converts the salt solution to a hydrofluoric acid solution that has a relatively high pH but is capable of dissolving siliceous material.

Title
Dissolving siliceous materials with self-acidifying liquid
Application Number
05/411,132
Publication Number
3828854
Application Date
October 30, 1973
Publication Date
August 13, 1974
Inventor
Richardson Edwin A
Street Jr Evan H
Templeton Charles C
Agent
Coryell Howard W
Assignee
Shell Oil Company
IPC
E21b 43/27
C09K 08/84
C09K 08/72
C09K 08/60
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