http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2199648-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac6c2793e35a250472e9dc72a55aca76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d27eefef3dab233da0a5d756435f3fc4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-138 |
| filingDate | 2001-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a10dab8528c0706eb3e241b6fe0cbc3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d9fabc1fac042abe53c3f612f2c731c |
| publicationDate | 2003-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2199648-C2 |
| titleOfInvention | Displacement fluid |
| abstract | FIELD: oil and gas production. SUBSTANCE: water-based displacement fluid contains, wt. %: carboxymethylcellulose, 0.45-0.8; nitrilomethylphosphonic acid, 0.02-0.05; weighting agent, 0-70; and, additionally, carbonate alkali agent, 8-12. EFFECT: reduced water loss ensuring reliable separation of drilling fluids from grouting mortars due to eliminated thickening of contact zones and also ensured high sedimentation stability due to higher weight and prevented formation of sedimentation clogs and getting displacement fluid filtrate into production strata. 2 tbl |
| priorityDate | 2001-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.