E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 21/06 (2006.01) B01D 17/00 (2006.01) B01D 17/02 (2006.01) B01D 21/00 (2006.01) C02F 1/52 (2006.01) C02F 1/68 (2006.01) C02F 9/00 (2006.01) C10G 33/06 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2506098
A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank, a filter press, and hydrocarbon filters. The method includes: mixing said invert emulsion drilling fluid with an emulsion breaker, wherein the emulsion breaker is a mixture of an alkyl glucoside and an alkane sulfonate; and separating the oleaginous component of the invert emulsion drilling fluid from the aqueous component of the invert emulsion drilling fluid. The method preferably utilizes an emulsion breaker that is a combination of an anionic surfactant, a nonionic surfactant and an alkyl polyglycoside surfactant.
L'invention concerne un appareil mobile et un procédé permettant de recycler un fluide de forage à base d'une émulsion inverse, ce fluide de forage à base d'une émulsion inverse comprenant un composant oléagineux et un composant aqueux. L'appareil de cette invention comprend une cuve de rupture d'émulsion, une cuve de traitement de l'eau, un filtre presse, et des filtres d'hydrocarbures. Le procédé de cette invention consiste à mélanger le fluide de forage à base d'émulsion inverse avec un briseur d'émulsion, ce dernier étant un mélange d'un glucoside d'alkyle et d'un sulfonate d'alcane, et à séparer le composant oléagineux du fluide de forage à base d'émulsion inverse du composant aqueux du fluide de forage à base d'émulsion inverse. De préférence, ce procédé met en oeuvre un briseur d'émulsion qui est une combinaison d'un agent de surface anionique, d'un agent de surface non ionique et d'un agent de surface de polyglycoside d'alkyle.
Finlayson & Singlehurst
M-I L.l.c.
LandOfFree
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