http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110157397-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a5bb09a38223d0b390aa724e6c7f7213 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5086 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508 |
| filingDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb058184da48dce0e990327638c64946 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8f8256c03ab47c47beec22ff1232ff1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc9f79a26a290235b07ec8eb516ddd96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5e798e88479da75973196d1972e1e1b |
| publicationDate | 2019-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110157397-A |
| titleOfInvention | A kind of nanometer film-forming loss-stopping agent for drilling fluid and its preparation method and application |
| abstract | The invention provides a nanometer film-forming loss-stopping agent for drilling fluid, which comprises the following components: silicon oxide, polyurethane particles, dispersant and alcohols. By controlling the ratio of raw materials and the preparation process, the prepared drilling fluid can be The nano-film-forming loss-stopping agent is an odorless white liquid, with a density of 1.05g/cm 3 and a particle size of 50-400nm of solid particles. Semi-permeable isolation membrane, which forms a complete protective layer on the well wall, prevents fluid from entering the formation, increases the effective pressure, weakens the ineffective pressure, effectively exerts the stability function of the well wall, improves the blocking ability of the drilling fluid, and reduces the filtration loss of the drilling fluid. It can improve the quality of the mud cake and the plugging efficiency, improve the inhibition of drilling fluid, prevent the fluid in the wellbore from entering the formation pores and fractures, and reduce the probability of pressure difference sticking and sticking. In addition, the preparation process of the invention is simple and easy to control, and the application is convenient and fast. , with high promotion and application value. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113773820-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115322758-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115322758-A |
| priorityDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.