| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_989ecca69fc47fadd546bf9a0db59629 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-25 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-74 |
| filingDate |
2013-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69a56213339d28103e17b4b87519158b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3419bc663881f612dc230ba49bc29acc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81136efd91e62141d88dc301ed04e10f |
| publicationDate |
2016-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9447314-B2 |
| titleOfInvention |
Treatment fluids containing a perfluorinated chelating agent and methods for use thereof |
| abstract |
Chelating agents used in conjunction with stimulation operations in a subterranean formation can often be limited by the pH range over which they may effectively complex metal ions. Perfluorinated chelating agents may have a broader effective pH range for metal ion complexation than do other types of chelating agents, particularly at highly acidic pH values. Methods for treating a subterranean formation can comprise: providing a treatment fluid comprising a perfluorinated chelating agent having at least two carboxylic acid groups; introducing the treatment fluid into a subterranean formation; and complexing metal ions in the subterranean formation with the perfluorinated chelating agent. |
| priorityDate |
2013-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |