http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020087568-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b7a5c546db0678dbd6f9594fc43f2d6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-532 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-532 |
| filingDate | 2018-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f29a46a12b968bff8f742a3a366d5478 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fb43bd30a1844838c5635a450cc813d |
| publicationDate | 2020-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2020087568-A1 |
| titleOfInvention | Method for removing iron sulfide and calcium carbonate scale |
| abstract | A method of removing a heterogeneous scale from a surface in fluid communication with a wellbore and/or subterranean formation comprising contacting the scale with a composition comprising tetrakis(hydroxmethyl)phosphonium sulfate (THPS) and N-( 2 -hydroxyethyl)ethylenediaminetriacetic acid (THEDTA) to dissolve the scale having a pH in the range of about 6.0 to 8.0. The composition is suitable to remove iron sulfide and calcium carbonate scale in the absence of corrosion resistance at a temperature up to about 150 ° C. Also, the composition may be used remove scale from surface pipe line and other petroleum oil handling equipment. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022220359-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11746278-B1 |
| priorityDate | 2018-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 114.