http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111734369-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-14 |
| filingDate | 2020-07-17^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111734369-B |
| titleOfInvention | Oil stratified oil recovery device |
| abstract | The invention relates to a petroleum layered oil recovery device. The technical scheme is as follows: a liquid inlet cavity (A) is formed between the jet suction string and the upper reservoir II suction string, and between the bottom of the upper reservoir II suction string and the lower reservoir I suction string The second liquid return cavity (B) is formed, and the inner cavity of the suction string of the lower reservoir I is the first liquid return cavity (C). Direct control, the data obtained in this way is more real and reliable; the original well fluid is used as the lubricating fluid, which not only saves resources and costs, but also ensures that the extracted liquid composition has no intrusion interference from foreign substances, which is more accurate and true; the third is injection and washing. The combination of wells not only saves space, increases the number of layers to be mined, but also ensures a longer service life of oil wells. Fourth, layered mining eliminates interlayer interference and avoids the original only mixed mining, which is prone to occur. Flooded, causing the reservoir to produce water but not oil, and the problem that it cannot be exploited normally. |
| priorityDate | 2020-07-17^^<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/substance/SID419512635 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 |
Showing number of triples: 1 to 18 of 18.