C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/70 (2006.01) E21B 43/26 (2006.01)
Patent
CA 2744765
A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (-)20°C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
Gatlin Larry W.
Gatlin Richard A.
Mcmillan Ernest
Walden Glen E.
Borden Ladner Gervais Llp
Conlen Surfactant Technology Inc.
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