Using gelation additive for hydraulic fracturing fluids

Details Using gelation additive for hydraulic fracturing fluids Using gelation additive for hydraulic fracturing fluids

1997-05-16

1999-09-14

Schoeppel, Roger

Wells

Processes

Specific low fluid loss feature for fracturing fluid or...

166300, 166308, 166309, E21B 4326

Patent

active

059507292

ABSTRACT:
A method of formulating an organo-zirconium compound is accomplished by combining in solution a dialdehyde such as glyoxal with zirconium carbonate. The reacting solution forms an organo-zirconium compound and carbon dioxide which is evolved as a gas from the solution. This eliminates the need to filter or wash the organo-zirconium compound in order to remove undesirable by-products. The organo-zirconium compound can be used as a crosslinking agent for crosslinking aqueous polymer gels used in fracturing fluids for fracturing subterranean formations of oil and gas wells.

REFERENCES:
patent: 4702848 (1987-10-01), Payne
patent: 5223159 (1993-06-01), Smith et al.
patent: 5224546 (1993-07-01), Smith et al.
Konunova, Ts. B., et al., "Study of Zirconium and Hafnium Complexation With Aldehydes and Ketones"1978.
PCT International Search Report PCT/US96/11649. U.S.!; Abstract No. 193278m; Konunova, Ts. B., et al., "Study of Zirconium and Hafnium Complexation With Aldehydes and Ketones".

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