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US4725372A Aqueous wellbore service fluids 失效
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Aqueous wellbore service fluids
摘要:
A wellbore service fluid is provided which contains water, a water soluble electrolyte and as a thickening agent at least one of an amine, a salt of an amine, or quaternary ammonium salt which functions to increase the viscosity of the fluid in the presence of said electrolyte.
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