METHOD FOR REGENERATION OF USED HALIDE FLUIDS
A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. (1.078 g/cm ) and containing both soluble and insoluble impurities. This method comprises the steps of (1) adding acid to the used halide fluid so that the pH is within a range of approximately 0 to 10.0; (2...
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Main Authors | , , , |
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Format | Patent |
Language | English French |
Published |
19.02.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. (1.078 g/cm ) and containing both soluble and insoluble impurities. This method comprises the steps of (1) adding acid to the used halide fluid so that the pH is within a range of approximately 0 to 10.0; (2) contacting the used halide fluid with halogen to increase the density to at least 10.0 lbs./gal., (1.198 g/cm ) maintain the desired true crystallization temperature of the fluid and oxidize soluble impurities; (3) adding a reducing agent while adjusting the temperature to a minimum of 10°C; (4) contacting the fluid with an alkali to neutralize excess acid; and (5) separating any suspended solid impurities from the fluid.
L'invention concerne un procédé de régénération d'un fluide halogéné usé dont la densité est supérieure à 9,0 lbs/gal (1,078 g/cm )et contenant des impuretés à la fois solubles et insolubles. Ce procédé consiste (1) à ajouter de l'acide au fluide usé de manière que le pH soit approximativement compris entre 0 et 10 ; (2) à mettre en contact le fluide halogéné usé avec l'halogène afin d'augmenter la densité jusqu'à au moins 10 lbs/gal (1,198 g/cm ), à maintenir la véritable température de cristallisation désirée du fluide et à oxyder les impuretés solubles ; (3) à ajouter un agent réducteur tout en ajustant la température à une température minimale de 10 DEG C ; (4) à mettre en contact le fluide avec un alcali afin de neutraliser l'excès d'acide ; et (5) à séparer n'importe quelles impuretés suspendue solides du fluide. |
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AbstractList | A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. (1.078 g/cm ) and containing both soluble and insoluble impurities. This method comprises the steps of (1) adding acid to the used halide fluid so that the pH is within a range of approximately 0 to 10.0; (2) contacting the used halide fluid with halogen to increase the density to at least 10.0 lbs./gal., (1.198 g/cm ) maintain the desired true crystallization temperature of the fluid and oxidize soluble impurities; (3) adding a reducing agent while adjusting the temperature to a minimum of 10°C; (4) contacting the fluid with an alkali to neutralize excess acid; and (5) separating any suspended solid impurities from the fluid.
L'invention concerne un procédé de régénération d'un fluide halogéné usé dont la densité est supérieure à 9,0 lbs/gal (1,078 g/cm )et contenant des impuretés à la fois solubles et insolubles. Ce procédé consiste (1) à ajouter de l'acide au fluide usé de manière que le pH soit approximativement compris entre 0 et 10 ; (2) à mettre en contact le fluide halogéné usé avec l'halogène afin d'augmenter la densité jusqu'à au moins 10 lbs/gal (1,198 g/cm ), à maintenir la véritable température de cristallisation désirée du fluide et à oxyder les impuretés solubles ; (3) à ajouter un agent réducteur tout en ajustant la température à une température minimale de 10 DEG C ; (4) à mettre en contact le fluide avec un alcali afin de neutraliser l'excès d'acide ; et (5) à séparer n'importe quelles impuretés suspendue solides du fluide. |
Author | SYMENS, RAYMOND, D MISHRA, SURENDRA, KUMAR HOWARD, LYLE, H POLKINGHORN, THOMAS, WILLIAM |
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DocumentTitleAlternate | PROCEDE DE REGENERATION DE FLUIDES HALOGENES USES |
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Snippet | A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. (1.078 g/cm ) and containing both soluble and insoluble... |
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SubjectTerms | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
Title | METHOD FOR REGENERATION OF USED HALIDE FLUIDS |
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