Well treatment method using fluid containing lactic acid or...

Details Well treatment method using fluid containing lactic acid or... Well treatment method using fluid containing lactic acid or...

2007-04-17

2007-04-17

Gulakowski, Randy (Department: 1712)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S260000, C507S120000, C166S270000, C166S271000, C166S307000

Reexamination Certificate

active

10758410

ABSTRACT:
Fluids comprising an aqueous acid, synthetic polymer, metal crosslinking agent and lactic acid or a salt thereof have particular applicability in fracturing subterranean formations of an oil or gas well. The lactic acid acts as a delaying agent. As a result, crosslinking of the synthetic polymer and metal crosslinking agent typically occurs at a temperature of 100° F. or higher.

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Lactic Acid Relative Density, 2001, www/inchem.org/documents/icsc/eics0501.htm.

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