http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1108983-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_802cb425a297a0766bc7d8cdc2f03898 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-936 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-90 |
| filingDate | 1979-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03bc5837b4bc63e1eec1f43400ff7fab |
| publicationDate | 1981-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1108983-A |
| titleOfInvention | Modified lignosulfonates as additives in oil recovery processes involving chemical recovery agents |
| abstract | ABSTRACT OF THE DISCLOSURE A process for producing petroleum from subterra-nean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involved injecting via the injection well into the formation an aqueous solution of lignosulfonate salt modified by alkoxylation as a sacri-ficial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the lignosulfonates modified by alkoxylation into the formation through the injection well mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well. |
| priorityDate | 1978-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.