http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109826601-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22 |
| filingDate | 2019-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109826601-B |
| titleOfInvention | Water lock removing method for tight reservoir |
| abstract | The invention discloses a water lock removing method for a compact reservoir, and belongs to the technical field of mining of compact low-permeability hydrocarbon reservoirs. The method for releasing the water lock of the compact reservoir comprises the following steps of (1) preparing multiphase aerosol by using nitrogen and a water-dissolving locking agent as raw materials; (2) soaking the multiphase aerial fog for 2-3 days after injecting the multiphase aerial fog into the water lock reservoir by adopting a high-pressure gas injection mode; (3) after the well is stewed, the well is opened for blowout after the oil pressure at the well head is detected to be higher than the oil pressure before injection. The water lock releasing method is simple to operate, efficient in effect and low in process application requirement, and can be applied to field large-scale operation. And the required injection pressure is lower, and the stratum does not need to be subjected to treatment such as large-scale heating, so that the requirements on process equipment and the overall cost are lower, and the large-scale field application can be carried out. |
| priorityDate | 2019-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.