C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/36 (2006.01) A61K 8/00 (2006.01) C09K 8/528 (2006.01)
Patent
CA 2756531
The present invention relates to an emulsion, consisting of an oil phase and an aqueous phase and comprising as emulsion components (.alpha.1) 15 to 40% by weight of at least one water--immiscible organic solvent as solvent of the oil phase, (.alpha.2) 15 to 40% by weight of water as solvent of the aqueous phase, (.alpha.3) 10 to 40% by weight of at least one surfactant, (.alpha.4) 10 to 40% by weight of an alkoxylated fatty alcohol and (.alpha.5) 0 to 25% by weight of at least one other additive, wherein the quantities by weight of the components (.alpha.1) to (.alpha.5) are each relative to the total weight of the emulsion, and together add up to 100% by weight. The invention further relates to a method for producing an emulsion, to the emulsion which can be obtained from said method, to the use of an emulsion, to a method for cleaning the surfaces of well holes, drilling devices or drillings, to a method for producing a well bore, and to a method for producing an oil or a gas.
La présente invention porte sur une émulsion constituée d'une phase huileuse et d'une phase aqueuse et contenant en tant que composants de l'émulsion (a1) 15 à 40% en poids d'au moins en solvant organique non miscible à l'eau, servant de solvant de la phase huileuse, (a2) 15 à 40% en poids d'eau servant de solvant de la phase aqueuse, (a3) 10 à 40% en poids d'au moins un produit tensio-actif, (a4) 10 à 40% en poids d'un alcool gras alcoxylé, ainsi que (a5) 0 à 25% en poids d'au moins un additif supplémentaire, les quantités en poids des composants (a1) à (a5) étant chacune rapportées au poids total de l'émulsion et faisant en tout 100% au poids. L'invention concerne en outre un procédé de préparation d'une émulsion, l'émulsion pouvant être obtenue par ce procédé, l'utilisation d'une émulsion, un procédé pour le nettoyage des surfaces de puits de forage, d'installations de forage ou de déblais de forage, un procédé de fabrication d'un puits de forage, ainsi qu'un procédé de préparation d'une huile ou d'un gaz.
Maeker Diana
Mueller Heinz
Emery Oleochemicals Gmbh
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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