| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C235-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-608 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F22-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00 |
| filingDate |
2004-12-14^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b9e326cedebea69fb55c03789ef61f2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_639b9460d1e15bac496d7c4393e88700
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_819884de63ae6df0067bb26bd267fe25 |
| publicationDate |
2006-08-30^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1694722-A1 |
| titleOfInvention |
Polyamine salts as clay stabilizing agents |
| abstract |
A clayish subterranean formation, such as may be encountered in rock surrounding a well bore during hydrocarbon recovery operations may be stabilized with acid ammonium salt of an imide of polymaleic anhydride. The salt may be unneutralized or partially neutralized. The invention is particularly relevant to hydraulic fracturing fluids used in enhanced oil recovery. The compositions of this invention are more environmentally friendly than some current technology. |
| priorityDate |
2003-12-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |