http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110184042-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-58 |
| filingDate | 2019-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110184042-B |
| titleOfInvention | Oil displacement agent for regulating, expanding and washing low-permeability oil reservoir and application process thereof |
| abstract | The invention discloses a low-permeability oil reservoir oil displacement agent for adjusting, expanding and washing, which is prepared from a water plugging profile control agent, a pore-expanding permeability-increasing agent and an oil-washing oil displacement agent according to the volume ratio of 1-3: 2-4: 3-5. The invention also discloses a use process of the oil displacement agent for regulating, expanding and washing the low-permeability oil reservoir. Compared with the single technology and single process in the conventional profile control and oil displacement project of the oil field, the oil displacement agent for low-permeability oil reservoir conditioning, expanding and washing has the advantages of no damage to the stratum, no pollution to the environment, short construction period, long oil increasing effective period and obvious improvement on the crude oil recovery ratio of low-permeability and ultra-low-permeability oil reservoirs in the tertiary oil recovery stage. |
| priorityDate | 2019-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.