FRACTURING FLUID COMPOSITION AND METHOD OF USING SAME IN GEOLOGICAL FORMATIONS

摘要

A composition and method required for providing a fracturing fluid pumped down a well bore and into a subterranean formation under conditions of pressure that will fracture the subterranean formation is described. More specifically, the composition increases the recovery of hydrocarbons from a geological formation penetrated by a well bore, wherein the composition includes a fracturing fluid that is liquid carbon dioxide (LCO2) with proppant to aid transport of the proppant in suspension, and thereby create a fracture using a fracturing fluid which is the thickened composition containing fumed silica. When the composition is without a proppant, the viscosity of the composition is increased in order to improve the fracturing operation through aspects such as increased fracture width and reduced fluid leak-off.

主权项

1. A fluid composition for increasing the recovery of hydrocarbons from a geological formation, wherein said fluid composition comprises: a non-polar liquid carbon dioxide (LCO2), and a fumed silica thickener, wherein said thickener increases the viscosity of said fluid composition to a value in a range of between 0.5 to 500 centipoise.