Wells – Processes – Placing fluid into the formation
Patent
1999-10-13
2000-05-30
Suchfield, George
Wells
Processes
Placing fluid into the formation
166312, 166902, 507202, 507268, 507934, E21B 3700, E21B 4102, E21B 4327
Patent
active
060680563
ABSTRACT:
An acidic fluid that is useful in stimulation and workover operations, and in particular, in matrix acidizing treatments, comprises an acid, such as hydrochloric acid; water; an aliphatic aldehyde having 1-10 carbon atoms; and an aromatic aldehyde having 7-20 carbon atoms. The aliphatic aldehyde preferably has 1-6 carbon atoms. Glyoxylic acid and glyoxal are especially preferred aliphatic aldehydes. The aromatic aldehyde preferably has 7-10 carbon atoms. Cinnamaldehyde is especially preferred.
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Frenier Wayne W.
Hill Donald G.
Nava Robin C.
Schlumberger Technology Corporation
Suchfield George
Waggett Gordon G.
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