http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1458799-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-24 |
| filingDate | 1975-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1458799-A |
| titleOfInvention | Method for recovering oil from a fractured limestone formation and oil recovered by such method |
| abstract | 1458799 Oil recovery SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 5 May 1975 18728/75 Heading E1F In a limestone formation comprising permeable blocks surrounded by a natural fracture network containing oil and water separated by an oil/water interface, the volume of water in the formation is controlled to raise the oil/water interface at a predetermined rate, and hot aqueous fluid is circulated through the fracture network to increase the temperature of the area covered by the rising oil/water interface, the increase in temperature causing the expulsion of oil trapped in the blocks by capillary action. The raising of the oil/water interface at a predetermined rate is controlled by allowing water to enter from a waterbearing formation communicating with the formation, or by injecting water into the formation. In a formation which has been wholly or partially depleted, a gas, e.g. a hot heatexchanging gas, is injected into the formation to lower the oil/water interface prior to the raising of this interface and prior to the circulation of hot aqueous fluid. The hot aqueous fluid may be steam for condensing in the fracture network, or hot water, the density of the latter being controlled by the addition of salt so that it is higher than the density of the oil but lower than the density of the water already present in the fracture network. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10344204-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385257-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2555250-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10982520-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385258-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10012064-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2497539-A1 |
| priorityDate | 1975-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 |
Total number of triples: 19.