| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_989ecca69fc47fadd546bf9a0db59629 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-3155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B49-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-314
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-135 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-28 |
| filingDate |
2020-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81661777d07c15f7d8192a66c499e169
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7ab8cad85d3fa0be325a377267b392e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_606e48b36ebf0a58e9303cddef1afb32 |
| publicationDate |
2021-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021251990-A1 |
| titleOfInvention |
Solvent-stabilized colorimetric detection of amine-based additives |
| abstract |
A method of detecting an amine-based additive in a wellbore servicing fluid (WSF) comprising contacting an aliquot of WSF with an amine detector compound and an aqueous salt solution to form a detection solution; wherein the aqueous salt solution comprises an inorganic salt and organic carboxylate salt; wherein the WSF comprises the amine-based additive; and wherein the detection solution is characterized by at least one absorption peak wavelength in the range of 380-760 nm; detecting an absorption intensity for detection solution at a wavelength within about +20% of the at least one absorption peak wavelength; comparing the absorption intensity of detection solution at the wavelength within about +20% of the at least one absorption peak wavelength with a target absorption intensity of amine-based additive to determine the amount of amine-based additive in WSF; and comparing the amount of amine-based additive in WSF with a target amount of amine-based additive. |
| priorityDate |
2020-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |