http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109265605-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-602 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-604 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-88 |
| filingDate | 2018-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109265605-B |
| titleOfInvention | Low-adsorption salt-resistant resistance-reducing agent suitable for shale reservoir fracturing transformation |
| abstract | The invention discloses a low-adsorption salt-resistant resistance-reducing agent suitable for fracturing modification of a shale reservoir, which is prepared from the following raw materials in percentage by mass: 35-50% of nonionic monomer, 8-18% of salt-tolerant cationic monomer, 2-5% of low-adsorption cationic monomer, 15-25% of nonpolar solvent, 0.7-5.5% of emulsifier, 6-12% of emulsification aid, 0.2-2.5% of phase transfer agent, 0.002-0.15% of initiator and the balance of deionized water. The non-ionic monomer is one or a mixture of at least two of N, N-dimethylacrylamide, hydroxyethyl methacrylate, lauryl methacrylate and hexadecyl methacrylate. The salt-tolerant cationic monomer is dimethyl diallyl ammonium chloride or N, N-dimethylaminoethyl methacrylate or a mixture of the dimethyl diallyl ammonium chloride and the N, N-dimethylaminoethyl methacrylate. The low adsorption cationic monomer is quaternary ammonium salt containing polar groups. The friction reducer has the characteristics of salt resistance and low adsorption, and the slickwater prepared by the friction reducer has small adsorption quantity on the surface of shale and small damage to shale reservoirs. |
| priorityDate | 2018-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.