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1. (EP3481913) CROSS-LINKED LEVAN BLENDS AS LOST CIRCULATION MATERIALS

Office : European Patent Office
Application Number: 17824975 Application Date: 07.07.2017
Publication Number: 3481913 Publication Date: 15.05.2019
Publication Kind : A1
Designated States: AL, AT, BA, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Prior PCT appl.: Application Number:US2017041094 ; Publication Number: Click to see the data
IPC:
C09K 8/035
C09K 8/03
C09K 8/58
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
02
Well-drilling compositions
03
Specific additives for general use in well-drilling compositions
035
Organic additives
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
02
Well-drilling compositions
03
Specific additives for general use in well-drilling compositions
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
58
Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
CPC:
C09K 8/03
C09K 8/5045
C09K 8/508
Applicants: HPPE LLC
Inventors: MADDURI ASHOKA V R
LANDIS CHARLES R
BLACKMON MATTHEW B
GANDHI SANKET
Priority Data: 201662359458 07.07.2016 US
2017041094 07.07.2017 US
Title: (DE) VERNETZTE LEVAN-MISCHUNGEN ALS LOST-CIRCULATION-MATERIALIEN
(EN) CROSS-LINKED LEVAN BLENDS AS LOST CIRCULATION MATERIALS
(FR) MÉLANGES DE LÉVANE RÉTICULÉS UTILISÉS COMME MATÉRIAUX DE PERTE DE CIRCULATION
Abstract:
(EN) The present invention is directed to compositions and methods for reducing lost circulation in drilling wells with compositions preferably comprising cross linked levan and calcium carbonate mixed with clay minerals such as kaolinite and other minerals blends or salts thereof.
(FR) La présente invention concerne des compositions et des procédés pour réduire la perte de circulation dans des puits de forage avec des compositions comprenant de préférence du lévane réticulé et du carbonate de calcium mélangés à des minéraux argileux tels que la kaolinite et d'autres mélanges minéraux ou des sels de ceux-ci.
Also published as:
CA3025188CN109415620WO/2018/009791