http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102732237-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_045ccc36a36914abe9a7167ab2379643 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 |
| filingDate | 2012-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68c44f0d09eb6792b01829dcc4c66e75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a87b422bcc466c1bdf55c89297ab7bc7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_876764939c5012d762c512b28791ac01 |
| publicationDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102732237-B |
| titleOfInvention | Dry wellbore well cementation cement slurry |
| abstract | The present invention discloses a dry wellbore well cementation cement slurry, which comprises the following components, by weight, 100 parts of class G cement, 1-2 parts of a fluid loss additive, 2-3 parts of an anti-channeling agent, 0.5-1.5 parts of an anti-salt retarder, 0.1-0.5 parts of an antifoaming agent, and 0.1-0.5 parts of fiber, wherein the fluid loss additive is one or a plurality of materials selected from an AMPS polymer, a ketoaldehyde condensation material and a PVA system, the anti-channeling agent is fibrous powder and silicon oxide, the anti-salt retarder is an AMPS polymer, and the antifoaming agent is a polyether. The beneficial effects of the cement slurry of the present invention are that: the cement slurry has characteristics of strong anti-dehydration performance, wall making performance, strong blocking performance and good flow property, and is insensitive to changes of density and temperature; the occurrence of the complex condition of gas-liquid replacement is avoided, and safe downward entering of casing, operation safety and well cementation quality are ensured so as to provide important practical significances, good social benefits, technical benefits and economic benefits. |
| priorityDate | 2012-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.