| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b3853d6ee291379ca9a3a346d61c9b4f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584 |
| filingDate |
1971-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f765ed34ad5458a4e32d87d7405d911
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50761b790df185f20e32148a850f28ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_485e7813d763af1ee0cb69f1efe6bf85 |
| publicationDate |
1973-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3776309-A |
| titleOfInvention |
Viscous surfactant water flooding |
| abstract |
A method of treating a formation by means of a well using a novel composition as a waterflood additive. The method is primarily used as a method for recovering oil from the formation, but also has utility in increasing the water injectivity of a well by reducing the formation''s residual oil saturation. The composition is prepared by reacting hydrocarbons of the type occurring in a 700*-1,100*F boiling range fraction of a petroleum crude with gaseous SO3 under specific sulfonating conditions. The composition is essentially a mixture of hydrocarbon sulfonates which has the properties of reducing the interfacial tension and increasing the viscosity of certain aqueous systems. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4485872-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6464859-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5545158-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5293683-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3901317-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005085397-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4125158-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S51116186-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5513271-B2 |
| priorityDate |
1971-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |