| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8d56118d0c51165cf6b5cc5c15f5f61a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_582b5d930387359f533ca750fb54c613 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-16 |
| filingDate |
2019-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21858914ba93c9bd040928305e46cf03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15f238d138c335619f52c7df32f2a54b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abcc3df28ee7516718ddbf81dbcf6fc1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d86c67c407150632bb663cbb6e6ac5e2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49fa1e299583f3817f7ec50e19d5a381 |
| publicationDate |
2021-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021010816-A1 |
| titleOfInvention |
Process for oil recovery |
| abstract |
Disclosed herein is a process for recovering oil and optionally gas from an oil-bearing formation, which process comprises the steps of: (i) injecting into the formation via a first well water or an aqueous enhanced oil recovery formulation comprising water and a surfactant; (ii) producing from the formation via a second well a mixture comprising water, oil, optionally gas and, when an enhanced oil recovery formulation is injected, optionally a surfactant; (iii) separating oil and optionally gas from the produced mixture to obtain an aqueous mixture comprising at most 1000 parts per million by weight (ppmw) of oil and optionally a surfactant; (iv) adding surfactant to the aqueous mixture comprising at most 1000 ppmw of oil and mixing it to obtain an oil-in-water emulsion; and (v) injecting the oil-in-water emulsion as an enhanced oil recovery formulation into the formation via the first well and repeating steps (ii) to (v). |
| priorityDate |
2019-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |