3924684 is referenced by 11 patents and cites 5 patents.

The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one containing clays or siliceous minerals as exemplified by sandstone, shale, etc. is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid and a fluorine-containing acid or salt and having dissolved therein a vinylpyrrolidone polymer. The in-depth increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.

Title
Method for stimulating well production
Application Number
05/426,998
Publication Number
3924684
Application Date
December 20, 1973
Publication Date
December 9, 1975
Inventor
Tate Jack F
Agent
Hunter Walter D
Ries C G
Whaley T H
Assignee
Texaco
IPC
E21B 43/26
E21B 43/27
C09K 08/60
C09K 08/72
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