http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112694872-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F289-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-06 |
| filingDate | 2020-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112694872-B |
| titleOfInvention | Liquid fluid loss additive and oil-based/synthetic-based drilling fluid containing liquid fluid loss additive |
| abstract | The invention discloses a liquid fluid loss additive and an oil-based/synthetic-based drilling fluid containing the same, wherein the liquid fluid loss additive is a liquid product formed by chemically modifying plant asphalt with anhydride through a diolefin synthesis method and dissolving the modified compound in an organic solvent; the oil-based/synthetic-based drilling fluid containing the liquid fluid loss additive comprises an oil-water mixed solution consisting of 80-85% of base oil and 20-15% of saline solution in volume fraction, and 20-30 g/L of emulsifier, 10-30 g/L of wetting agent, 0-30 g/L of organic soil, 0-30 g/L of flow type regulator, 0-30 g/L of polymer thickener, 20-50 g/L of liquid fluid loss additive, 10-50 g/L of calcium oxide, 0-50 g/L of fine calcium carbonate and barite which are added based on the total volume of the oil-water mixed solution; the liquid filtrate reducer has the characteristics of low cost and good environmental and ecological compatibility, the oil-based/synthetic-based drilling fluid prepared by the filtrate reducer can resist the temperature of 180 ℃, has low filtrate loss and proper rheological property, and meets the requirements of construction of deep well ultra-deep wells and deep shale oil gas long horizontal wells under complex geological conditions of deep stratums in China. |
| priorityDate | 2020-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.