http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0171163-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7851348db19297faa07ed5a450ecbbf3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-936 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5751 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-62 |
| filingDate | 1985-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_224cbd8f7be451b0dcd3b963974b120a |
| publicationDate | 1986-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0171163-A2 |
| titleOfInvention | Methods of minimizing fines migration in subterranean formations |
| abstract | A method of preventing or reducing the migration of fines in a permeable subterranean formation, comprising: contacting said fines in said subterranean formation with an effective amount of an organic copolymer having recurring structural monomer units formed in a random fashion of the formula:wherein R' and R<sup>4</sup> are independently each an alkylene group having 1 to about 4 carbon atoms; R<sup>2</sup>, R<sup>3</sup>, R<sup>5</sup>, R<sup>6</sup>, and R<sup>7</sup> are independently each either methyl or ethyl; A is chloride, bromide, iodine, hydroxide or methyl sulfate; s is an integer equal to the number of anions required to maintain electronic neutrality; x, y, and z are integers, the sum of which equals the total number of monomer units in the copolymer required to give a molecular weight in the range of from about 100,000 to about 1,500,000; andmonomer unit I is present in the range of from about 80 to about 98 percent by weight of the copolymer;monomer unit II is present in the range of from about 2 to about 20 percent by weight of the copolymer; and,monomer unit III is present in the range of from about 0 to about 20 percent by weight of the copolymer. |
| priorityDate | 1984-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 91.