Patent ID: 7081437
Filing Date: 2006-07-25
Classification: C09K

Abstract:
1. A biodegradable wellbore fluid comprising a blend of synthetic internal olefins and a rheology control agent, wherein the blend of synthetic internal olefins consists of: a first internal olefin fraction (C 16/18 ) having a C 16 isomer content of greater than 50% w/w and a C 18 isomer content greater than 30% w/w; a second internal olefin fraction (C 15/18 ) having a C 15 isomer content of greater than 20% w/w; a C 16 isomer content greater than 20%; a C 17 isomer content greater than 20%; and a C 18 isomer content greater than 15% w/w; and a third internal olefin fraction (C 15/16 ) having a C 15 isomer content of greater than 40% w/w and a C 16 isomer content greater than 40% w/w.