http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109627378-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-725 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-74 |
| filingDate | 2017-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109627378-B |
| titleOfInvention | Hydrophobic association complex and preparation method thereof, clean diverting acid for heterogeneous carbonate reservoir acid fracturing and preparation method thereof |
| abstract | The invention relates to a hydrophobic association complex and a preparation method thereof, a clean diverting acid for acid fracturing of a heterogeneous carbonate reservoir and a preparation method thereof, and belongs to the technical field of oilfield chemical engineering. The hydrophobic association complex has a structure shown as a formula (1), wherein x: y is 90-95: 5-10; the weight average molecular weight of the hydrophobic association complex is 80-120 ten thousand. The preparation method of the hydrophobic association complex comprises the following steps: uniformly mixing 13-17 parts by weight of acrylamide, 7-8 parts by weight of sodium 4- [ (heptadecafluorononenyl) oxy ] benzene sulfonate and water, and adjusting the pH value to 6-7; adding 0.04-0.05 part of redox initiator, and reacting for 5-7h at 30-40 ℃ under the protection of inert gas. The hydrophobic association complex is used as a diverting agent for cleaning a diverting acid system, has hydrophobic groups and fluorocarbon groups, improves the viscosity and the slow speed performance of the acid system at high temperature, and can meet the requirement of deep penetration of acid fracturing construction. |
| priorityDate | 2017-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.