Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_23bac85f40938acff6d1067bdc558257 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-925 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-08 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-08 |
filingDate |
2001-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_367694a954d13d2a6b85d8ecbb139532 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17d8a40574e5da8171d45baae6c50d01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ccf0dbda6f91bedb152f451564ef42a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08022aec0152291e3e8b62671f46d3a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48c4db8df15305c0470d19c0a951becc |
publicationDate |
2001-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-0188058-A2 |
titleOfInvention |
Non-pyruvylated xanthan in oil field applications utilizing high density calcium-based brines |
abstract |
A drilling fluid comprising a pyruvate-free xanthan, which may be an acetate-free pyruvate-free xanthan, and a high density calcium-based brine. Preferably the pyruvate-free xanthan is a genetically prepared pyruvate-free xanthan. A process for recovering crude oil from an oil-bearing subterranean formation by drilling the formation and using a drilling fluid comprising a pyruvate-free gum and a high density calcium-based brine. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9050357-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011112434-A1 |
priorityDate |
2000-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |