http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2224727-C2
Outgoing Links
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|---|---|
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E02D3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B7-527 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E02D19-18 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K103-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B111-70 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E02D3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B7-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K17-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E02D19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B7-153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-46 |
| filingDate | 2000-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab802ba907c4b62021e09d793e9235b3 |
| publicationDate | 2004-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2224727-C2 |
| titleOfInvention | Cement slurry for the insulating shield and a method of making of the insulating shield |
| abstract | FIELD: gas and oil industries. SUBSTANCE: the invention presents a cement slurry for the insulating shield and a method to make the insulating shield, which contains mixture of water, the natural or modified clay, a special blast-furnace slag and an activating agent. The invention also presents a method of usage of the cement slurry, that is dealt with usage of a special blast-furnace slag for preparation of this cement slurry. Technical result: increased strength of the cement slurry at the same ratio of water / cement, increased penetrating power at the same content of the dry materials, more sluggish hardening, that in the higher degree is suitable for direct boring with a cement slurry, obtaining of a system with poor reactivity allowing completely to get rid of moderating materials application. In the cement slurry for the insulating shield, that contains clay, blast-furnace slag and an activating agent, clay is presented by bentonitic slimes, and blast-furnace slag has a maximum size of grains from 50 up to 100 microns. The maximum size of grains of blast-furnace slag in preferable version makes 80 microns. Blast- furnace slag can be characterized by mass ratio of CaO/SiO 2 within the limits from 1.1 up to 1.35. Blast-furnace slag has a chemical module exceeding 500. In the capacity of an activating agent there is a possibility to chose among: caustic sodium, caustic potassium, sodium or potassium carbonate or bicarbonate, gypsum, quicklime or slaked lime, mixture of these compounds and portland cement. The cement slurry may contain from 1 up to 10 mass % of an activating agent fin respect to the blast-furnace slag mass. The weight ratio of cement / water lays within the limits from 0.25 up to 1.1. In the method of making the insulating shield they exercise boring and use the above-stated cement slurry. EFFECT: increased strength of the cement slurry at the same ratio of water / cement, increased penetrating power at the same content of the dry materials, the cement slurry more sluggish hardening. 8 cl, 1 dwg, 2 tbl, 2 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2622054-C2 |
| priorityDate | 1999-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.