| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_205ed467ee37eb7413662b5e118197f7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12 |
| filingDate |
1998-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bcc2c53fdde5bfd5c588562c8defae3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74888794e368b6b79ad37fe7a3c014cb |
| publicationDate |
2000-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2340521-A |
| titleOfInvention |
Shale-stabilizing additives |
| abstract |
A shale-stabilizing additive comprises a copolymer of an olefinically unsaturated hydrocarbon and an ethylenically unsaturated carboxylic acid, carboxylic acid salt or carboxylic acid anhydride with alkylene oxide based side chains. A preferred polymer is a copolymer of styrene or a styrene derivative and maleic anhydride with alkylene oxide based side chains. The additive can be used for water-based service fluids (WBN) to facilitate the drilling or completion process in shales or clayey formations. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7943554-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7919437-B2 |
| priorityDate |
1998-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |