http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2407459-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8bd46685ec9619bc906586155cfd10aa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 |
| filingDate | 2002-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2bfa182b085c9ce7828c538fd52f3d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62e95503d6dba5c29592bdd27ce0a110 |
| publicationDate | 2008-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2407459-C |
| titleOfInvention | Invert emulsion drilling fluid and process |
| abstract | An invert emulsion, in which the aqueous phase includes a low concentration of potassium formate, is used in well drilling. The low concentration of potassium formate may be maintained by monitoring the potassium level in the circulating drilling fluid and/or by intermittently measuring the water activity of the drilling fluid. As an emulsifier, a reaction product of tall oil and a fatty alkanolamide may be used, optionally with an additional reaction product of tall oil with an aminoethylpiperazine. |
| priorityDate | 2001-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.