http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112901128-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5086 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-2408 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-506 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-506 |
| filingDate | 2021-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112901128-B |
| titleOfInvention | Salinity-responsive emulsion for start-up SAGD method in heavy oil reservoirs in aquifers |
| abstract | The invention discloses a salinity-responsive emulsion method for starting SAGD in heavy oil reservoirs of aquifers. The method comprises the steps of: 1. identifying aquifers in heavy oil reservoirs and drilling SAGD horizontal well groups; 2. preparing salt 3. Injecting salinity responsive emulsion to adjust formation heterogeneity; 4. Aging salinity responsive emulsion and causing phase inversion to form plugging; 5. Expanding the formation between two horizontal wells; 6. . Start SAGD through steam cycle preheating. The present invention can effectively block the aquifer by using the salinity-responsive emulsion, adjust the heterogeneity of the formation around the horizontal well, and improve the porosity and permeability of the formation between the two horizontal wells through capacity expansion, thereby realizing the preheating of the SAGD technology steam cycle The rapid and uniform preheating of the formation between two horizontal wells in the start-up stage can realize the uniform development of steam chambers, greatly improve the technical recovery rate and economic benefits of SAGD in heavy oil reservoirs, and facilitate popularization and application. |
| priorityDate | 2021-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.