| 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 |
2001-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08022aec0152291e3e8b62671f46d3a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ccf0dbda6f91bedb152f451564ef42a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48c4db8df15305c0470d19c0a951becc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17d8a40574e5da8171d45baae6c50d01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_367694a954d13d2a6b85d8ecbb139532 |
| publicationDate |
2003-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6573221-B2 |
| 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-2004138069-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010256023-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007088736-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009291862-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8865633-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006205606-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008078545-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7989400-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8138124-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008220992-A9
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7595282-B2 |
| priorityDate |
2000-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |