http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105131921-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5086 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-512 |
| filingDate | 2015-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105131921-B |
| titleOfInvention | A kind of salt-resisting high-temperature-resisting high intensity crosslinked gel plugging aqua |
| abstract | The present invention relates to a kind of salt-resisting high-temperature-resisting high intensity crosslinked gel plugging aqua, and in parts by weight, the salt-resisting high-temperature-resisting high intensity crosslinked gel plugging aqua contains：2.5~4 parts of 20~25 parts of sulfonation modifying small molecule biopolymer, small molecule acrylamide and methylpropene sodium sulfonate copolymer, 1.3~3 parts of crosslinking agent, and 0.5~1.5 part of pH adjusting agent；Wherein, the crosslinking agent is phenolic resin compound, is made by phenolic compound and aldehyde compound or the compound that can produce aldehyde；Sulfonation modifying small molecule biopolymer is made of plant extracts through sodium sulfite sulfonation；PH adjusting agent is one kind in ammonium chloride, formic acid, oxalic acid, citric acid.The salt-resisting high-temperature-resisting high intensity crosslinked gel plugging aqua temperature be 120 DEG C, salinity be 20 × 10 4 During mg/l, gelling strength is 4 × 10 4 ~10 × 10 4 MPa ﹒ S, gelation time are 4~6 hours, are 96.4% to the area's Triassic system natural core sealing ratiod of Tahe 1, acidifying releasing rate is 98% suitable for bottom water sandstone oil reservoir horizontal well. |
| priorityDate | 2015-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.