http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-037141-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cf2caf35a4f97a4534d8923f7fd25a4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate | 2008-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7f7066d82f0b7276399f0812b197e55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ae4a355e923e4e5f0bef3d803dca93b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a6853348ba602fdf7d92a541f7bdc48 |
| publicationDate | 2021-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EA-037141-B1 |
| titleOfInvention | WELL DRILLING FLUID AND ITS APPLICATION |
| abstract | The invention provides a well drilling fluid. A well drilling fluid that contains an aqueous continuous phase and at least one salt dissolved in said aqueous continuous phase, which exists in a liquid state at a temperature below 150 ° C and which contains an ammonium, phosphonium or sulfonium cation containing at least 5 atoms carbon, or a quaternized nitrogen-containing heterocyclic cation containing at least 6 carbon atoms, provided that said salt is not 2-hydroxy-N, N, N-trimethylethanaminium acetate; and a method of performing a drilling operation, which includes injecting a drilling fluid of the invention into a borehole in a formation containing clay. The salts described are effective shale inhibitors. |
| priorityDate | 2007-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 168.