http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2496542-A
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-138 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-426 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-514 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-493 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-48 |
filingDate | 2011-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ccabef77824c8b3ac2d0ea723857525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab35865f40e3fe6b6767d29fc057f717 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d2014250950e0544eee2607360bec2a |
publicationDate | 2013-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | GB-2496542-A |
titleOfInvention | Method of using gelled fluids with defined specific gravity to prevent ingress of unwanted fluids |
abstract | Gelled barrier fluids for preventing the ingress of undesired fluids from subsurface environments into subsurface apparatus have a specific gravity which is within 0.01 of the specific gravity of the undesired fluid e.g. sea water, fresh water or hydrocarbon; and/or (a) the barrier fluid is prepared by first preparing a base fluid having a specific gravity less than the unwanted subsurface fluid and then introducing gallant comprising a viscosifying polymer and crosslinking agent to the base fluid to form the barrier fluid and (b) the entire interior area of the apparatus, after being filled with the gelled barrier fluid, is free of gas. The gelled barrier fluid is substantially free of gas and comprises a base fluid and a gellant system. The base fluid may be the combination of an alcohol and glycol e.g. methanol and ethylene glycol; and the gellant system may contain a viscosifying polymer and a crosslinking agent e.g. a crosslinked cellulosic or guar derivative. |
priorityDate | 2010-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.