Non-damaging fracturing fluids and methods for their use

Details Non-damaging fracturing fluids and methods for their use Non-damaging fracturing fluids and methods for their use

C - Chemistry, Metallurgy

09

K

C09K 8/34 (2006.01)

Patent

CA 2547252

A non-aqueous well treatment fluid is provided containing a glycol-soluble polymer such as highly substituted hydroxypropyl guar in an alkylene glycol or alkylene glycol ether solvent. A non-aqueous slurry composition for use in preparing water-based well treatment fluids is also provided, having a glycol-soluble polymer such as highly substituted hydroxypropyl guar in an alkylene glycol or alkylene glycol ether solvent. A method is provided for utilizing such a slurry to prepare a water-based well treatment fluid, the method including loading a water-soluble polymer into the slurry, then metering the loaded slurry into water.

Un liquide non aqueux de traitement des puits est divulgué. Il contient un polymère soluble dans un glycol, comme l'hydroxypropylguar hautement substitué dans un solvant d'alkylèneglycol ou d'alkylèneglycoléther. Une bouillie non aqueuse entrant dans la préparation de liquides de traitement des puits à base d'eau est aussi divulguée. Elle contient un polymère soluble dans un glycol, comme de l'hydroxypropylguar hautement substitué dans un solvant d'alkylèneglycol ou d'alkylèneglycoléther. On divulgue également une méthode d'emploi de ce type de bouillie pour la préparation d'un liquide de traitement des puits à base d'eau. Cette méthode comprend l'incorporation dans la bouillie d'un polymère soluble dans l'eau, puis le versement dosé de la bouillie dans l'eau.

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