Organo-metallic compounds

Details Organo-metallic compounds Organo-metallic compounds

C - Chemistry, Metallurgy

07

F

260/210, 31/8, 2

C07F 7/00 (2006.01) C07H 23/00 (2006.01) C09K 8/68 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2002792

An organometallic compound which is the reaction product of (a) a zirconium halide or oxyhalide, (b) a polyol and (c) an alpha-hydroxy acid is claimed. The preferred polyol is sorbitol and preferred alpha- hydroxy acids are citric, malic or lactic acid. The compounds find use as cross-linking agents in fracturing fluids employed in the hydraulic fracturing of oil or gas-containing subterranean strata. The claimed compounds can be used to produce a slow or delayed gel formation in such fluids.

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