| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b1962bdeafe58e2f312c308fe511c31 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-138
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B26-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-44 |
| filingDate |
2019-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2ff0f402b120a01a5700273163a0456
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d176627c596fad0d54dbce4f90afa5a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2aab0501d60c366d9904e54f3df4e709
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1bb17f89b6e183d5423493578c3907d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e8872cb43b2b9d547ea2e688d1f7ea5 |
| publicationDate |
2021-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3844236-A1 |
| titleOfInvention |
Sealing compositions and methods of sealing an annulus of a wellbore |
| abstract |
A sealing composition for sealing an annulus of a wellbore includes from 20 weight percent to 97 weight percent epoxy resin based on the total weight of the composition. The epoxy resin comprising at least one of 2,3 -epoxypropyl o-tolyl ether, alkyl glycidyl ethers having from 12 to 14 carbon atoms, or a compound having formula (0C 2 H 3 )-CH 2 -0-R 1 -0-CH 2 - (C 2 H 3 0), where R 1 is a linear or branched hydrocarbyl having from 4 to 24 carbon atoms. The sealing composition also includes from 1 weight percent to 20 weight percent curing agent based on the total weight of the composition. Methods for sealing a wellbore annulus or casing-casing annulus includes introducing a spacer fluid to the wellbore, introducing the sealing composition to the wellbore, displacing the sealing composition into the annulus, and curing the sealing composition. |
| priorityDate |
2018-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |