http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106520086-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12 |
| filingDate | 2015-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106520086-B |
| titleOfInvention | Water-based drilling fluid for hot dry rock and preparation method thereof |
| abstract | The invention provides a water-based drilling fluid for hot dry rock and a preparation method thereof, wherein the drilling fluid comprises the following components in percentage by mass and volume: 0.1 to 1 percent of alkali metal hydroxide; 2% -10% of sepiolite; 1-10% of inorganic tackifier; 1% -5% of high-temperature gel protector; 2-10% of high-temperature fluid loss additive; 2% -20% of special oil; 0.5 to 2 percent of emulsifier; 0.5 to 5 percent of high-temperature stabilizer; 2-60% of drilling fluid weighting material; the solvent is water. According to the invention, the high-temperature protective agent and the high-temperature stabilizer are added into the drilling fluid, so that the temperature resistance of the water-based drilling fluid reaches 260 ℃, the operation requirement of an ultrahigh-temperature well can be met, the temperature application range of the system is wide, the system is suitable for construction operation of different well sections, the pipe column procedures are reduced, the field construction operation is simplified, and the cost is saved. |
| priorityDate | 2015-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.