| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_00b6a7d89068f217d1f4efa9a94c5ded |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-528
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-602
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-605
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-887
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-138
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B37-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B37-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-138
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-528
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-60 |
| filingDate |
2020-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4204c06fbd7fe1573c9f0829c65db7fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac041b83502021c2959be526a4d67fd1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_461649786ab4a331dc0be9dab200debe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb47317bd32822cf7ad9759f6b801a83 |
| publicationDate |
2020-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2020148942-A1 |
| titleOfInvention |
Compositions and methods for delayed crosslinking in hydraulic fracturing fluids |
| abstract |
Disclosed herein are compositions and methods for delaying crosslinking of aqueous crosslinkable polymers such as polysaccharides in injectable compositions for hydraulic fracturing and related applications. The compositions and methods provide delayed crosslinking at high temperatures and pressures, such as those encountered by hydraulic fracturing compositions injected into subterranean environments. Compositions include injectable solutions comprising a competing agent that is a reaction product of a dialdehyde having 2 to 4 carbon atoms with a non-polymeric cis-hydroxyl compound. Provided are methods of making and using delayed-crosslinking compositions comprising crosslinker compositions containing zirconium complexes and the competing agents. |
| priorityDate |
2016-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |