http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021269701-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b1962bdeafe58e2f312c308fe511c31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc05229904be2987713acc8b41db7cd3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-528 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-528 |
| filingDate | 2020-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2c12b1ccda6c5bcd80b3068e9ded9a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b7011725722f383aa8905e66574a839 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a276556111a1eb156a3a6cdb47ccc7fd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a56062671ca19bdc54a762bc277cf48d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_106ca8df3490f203329c83564ed508a6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_993f310c7f8e050c63e75039fbddbbca |
| publicationDate | 2021-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2021269701-A1 |
| titleOfInvention | Iron sulfide inhibitor suitable for squeeze application |
| abstract | A polymeric scale inhibitor composition and a method for inhibiting metal sulfide scale formation in a well are provided. The composition includes 80-82 mol % of a first monomeric unit, where the first monomeric unit is 2-acrylamido-2-methylpropane sulfonic acid (AMPS). The composition also includes 2-18 mol % of a second monomeric unit selected from N-vinyl formamide, N-vinyl pyrrolidone, and diallyl dimethyl ammonium chloride. The composition further includes 2-18 mol % of a third monomeric unit selected from acrylic acid, methacrylic acid, esters of acrylic acid or methacrylic acid with an alcohol having 1 to 4 carbon atoms, and carboxyethyl acrylate. The polymeric scale inhibitors show superior adsorption characteristics on rocks and their subsequent release behavior allows for scale inhibition over extended time periods respectively at a significant volume of coreflood fluids. They are especially suited for downhole application via field scale squeeze treatments. |
| priorityDate | 2020-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.