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1. EP2649022 - WELLBORE SERVICING COMPOSITIONS COMPRISING A FLUID LOSS AGENT AND METHODS OF MAKING AND USING SAME

Office European Patent Office
Application Number 11794841
Application Date 06.12.2011
Publication Number 2649022
Publication Date 16.10.2013
Publication Kind A1
IPC
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02
containing hydraulic cements other than calcium sulfates
06
Aluminous cements
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
46
containing inorganic binders, e.g. Portland cement
467
containing additives for specific purposes
487
Fluid loss control additives; Additives for reducing or preventing circulation loss
C04B 28/06
C09K 8/487
CPC
C04B 28/06
C04B 2103/0045
C09K 8/487
Applicants HALLIBURTON ENERGY SERV INC
Inventors JOSEPH TRISSA
CHAKRABORTY PANKAJ PHANI
REDDY B RAGHAVA
Designated States
Priority Data 2011001690 06.12.2011 GB
96123410 06.12.2010 US
Title
(DE) BOHRLOCHWARTUNGSZUSAMMENSETZUNGEN MIT EINEM FLÜSSIGKEITSVERLUSTMITTEL SOWIE VERFAHREN ZU IHRER HERSTELLUNG UND VERWENDUNG
(EN) WELLBORE SERVICING COMPOSITIONS COMPRISING A FLUID LOSS AGENT AND METHODS OF MAKING AND USING SAME
(FR) COMPOSITIONS D'ENTRETIEN DE PUITS DE FORAGE COMPRENANT UN AGENT DE PERTE DE FLUIDE ET PROCÉDÉS DE FABRICATION ET UTILISATION DE CELLES-CI
Abstract
(EN)
A method of servicing a wellbore comprising preparing a composition comprising a calcium aluminate cement, water, and a fluid loss additive wherein the fluid loss additive comprises an acid gelling polymer, placing the composition in the wellbore, and allowing the composition to set. A method of servicing a wellbore comprising placing into a wellbore having a bottom hole static temperature of greater than about 50 °F [about 10°C] and/or a pH of from about 3 to about 9 a cement slurry comprising a calcium aluminate cement having an aluminum oxide content of greater than about 60 wt.% based on the total weight of the calcium aluminate cement and an acid-gelling polymer wherein the cement slurry has a fluid loss at 10 cc/10 min. to about 600 cc/30 min.

(FR)
L'invention concerne un procédé d'entretien de puits de forage comprenant la préparation d'une composition comprenant un ciment d'aluminate de calcium, de l'eau et un additif de perte de fluide, l'additif de perte de fluide comprenant un polymère de gélification acide ; le placement de la composition dans le puits de forage ; et le durcissement de la composition. L'invention concerne un procédé d'entretien de puits de forage comprenant le placement, dans un puits de forage présentant une température statique de fond supérieure à environ 50°F [environ 10°C] et/ou un pH d'environ 3 à environ 9, d'une suspension de ciment comprenant un ciment d'aluminate de calcium présentant une teneur en oxyde d'aluminium supérieure à environ 60% en poids sur la base du poids total du ciment d'aluminate de calcium et un polymère de gélification acide, la suspension de ciment présentant une perte de fluide de 10 cc/10 min. à environ 600 cc/30 min.