http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2345306-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7d9f38dad6342df09dea6b5c21b73725 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 |
| filingDate | 1999-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba6d40e65ab73ef98bf9ff4d4b138d6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bee0164b9590a2b83bfb1cf9d3a4bd2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1967252e1798e1a9969b39f6a6a1934f |
| publicationDate | 2000-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2345306-A |
| titleOfInvention | Compositions and methods for selective modification of subterranean formation permeability |
| abstract | A method for modifying the permeability of a subterranean formation for the purpose of selectively reducing excessive production of aqueous fluids comprises introducing into the formation an aqueous fluid containing a copolymer having a hydrophillic monomeric unit and an anchoring monomeric unit. The anchoring monomeric unit is N-vinylformamide, N-methylacetamide, N,N-diallylacetamide, or a mixture therof. The hydrophillic monomeric unit may be acrylamidomethylpropanesulphonic acid, acrylic acid, acrylate salt or a mixture thereof. The coploymer may have a second anchoring monomeric unit based on dimethyldiallyl ammonium chloride, ammonium or alkali metal salts of acrylic acid or a mixture thereof, and a filler monomeric unit based on acrylamide, methacrylamide or a mixture thereof. The copolymers may be employed in well treatment fluids introduced into production wells or injection wells. The copolymers may also be utilized in conjunction with stimulation treatments and with introduction of other well treatment fluids. |
| priorityDate | 1998-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.