http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109679615-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584 |
| filingDate | 2017-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109679615-B |
| titleOfInvention | Method for draining water and producing gas by adopting foam water draining agent composition for ultra-deep gas well |
| abstract | The invention relates to a method for draining water and producing gas by adopting a foam water draining agent composition for an ultra-deep gas well, which mainly solves the problem that the existing foam water draining agent contains H 2 S、CO 2 The high-temperature and high-salt resistance in an acidic environment is poor, and the problems of production reduction and even blowout stoppage caused by liquid loading of a high-temperature and high-salt ultra-deep gas well cannot be solved. The invention adopts the following steps: (1) mixing the foam drainage agent composition with water to obtain a foam drainage agent composition solution; (2) fully contacting the foam drainage agent composition solution or the mixed solution of the foam drainage agent composition solution and the oil with gas to form foam fluid, and displacing water or an oil-water mixture in the foam drainage agent composition solution; the foam water draining agent composition comprises the following components in parts by mass: 1)1 part of polyamine polyether compound; 2) the technical scheme of 0.01-100 parts of cosurfactant well solves the problem and can be used for drainage and gas production of acidic high-temperature high-salinity ultra-deep gas wells. |
| priorityDate | 2017-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 93.