| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_759df5a77ceb7d655cf105f20141f20d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-473
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-0053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-473
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B22-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02 |
| filingDate |
2000-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78a56147c56fa1863025f5c5d93243ed
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d3781657e7e9edfa92c722cb3fe5e31 |
| publicationDate |
2004-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1397577-A2 |
| titleOfInvention |
Low density well cement compositions |
| abstract |
Improved low density well cement slurry compositions are formed by the addition of a free-fluid inhibitor additive to a mixture comprising a hydraulic cement and water. Suitable free-fluid inhibitors are hydroxy ethyl cellulose polymers having a cps value in the range of from about 5000 to about 50,000. |
| priorityDate |
1999-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |