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1. (WO1992010640) ENCAPSULATIONS FOR TREATING SUBTERRANIAN FORMATIONS AND METHODS FOR THE USE THEREOF
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010640 International Application No.: PCT/US1991/008818
Publication Date: 25.06.1992 International Filing Date: 03.12.1991
Chapter 2 Demand Filed: 02.07.1992
IPC:
C09K 8/62 (2006.01) ,C09K 8/92 (2006.01) ,E21B 43/26 (2006.01)
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
60
Compositions for stimulating production by acting on the underground formation
62
Compositions for forming crevices or fractures
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
60
Compositions for stimulating production by acting on the underground formation
92
characterised by their form or by the form of their components, e.g. encapsulated material
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25
Methods for stimulating production
26
by forming crevices or fractures
Applicants:
THE WESTERN COMPANY OF NORTH AMERICA [US/US]; 515 Post Oak Blvd., Suite 1200 Houston, TX 77027, US
Inventors:
SATYANARAYANA GUPTA, D., V.; US
COONEY, Aiden; US
Agent:
BIELINSKI, Peter, A.; The Western Company of North America 515 Post Oak Boulevard Suite 1200 Houston, TX 77027 , US
MYERSCOUGH, Philip, Boyd; J.A. Kemp & Co. 14 South Square Gray's Inn London WC1R 5LX, GB
Priority Data:
623,01306.12.1990US
Title (EN) ENCAPSULATIONS FOR TREATING SUBTERRANIAN FORMATIONS AND METHODS FOR THE USE THEREOF
(FR) CAPSULES POUR LE TRAITEMENT DE FORMATIONS SOUTERRAINES ET PROCEDES D'UTILISATION DESDITES CAPSULES
Abstract:
(EN) Encapsulations comprised of a breaker enclosed within a membrane are utilized to break fluids used to fracture subterranean formations. The membrane of the encapsulation is permeable to at least one fluid in the subterranean formation or injected with the breaker such that the breaker diffuses through the membrane into the fracturing fluid. Thus, controlled amounts of breaker are released into the fracturing fluid.
(FR) Des capsules contenant un agent de rupture à l'intérieur d'une membrane sont utilisées conjointement à des liquides de fracturation pour fracturer des formations souterraines. La membrane de la capsule est perméable à au moins un liquide se trouvant dans la formation souterraine ou injectée avec l'agent de rupture de sorte que celui-ci se diffuse, en passant par la membrane, dans le liquide de fracturation. Ainsi, des quantités contrôlées d'agents de rupture sont libérées dans le liquide de fracturation.
Designated States: HU, NO, RO, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19932046EP0559783