http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114350331-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c860c0fe21a8ff1ca8f3234bf1f60628 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-141 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-46 |
| filingDate | 2022-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_652b9b6bec5caff5e277c81011e61ad5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd729a091cf63df5f0231b5c70ee5896 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2858dec129ddcfc7cfc8a6577c6fe033 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48e53dfd2e92d83fd101f482639d843a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_589b21c7430d43798a6057c59dc32520 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a98d621c8374634b099085560f7a45d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f45a4b18a676ae66d8aae0bb27c07f75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6ed84634e5679c3050236d0e8b94c87 |
| publicationDate | 2022-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114350331-A |
| titleOfInvention | A strong adsorption and anti-salt plugging agent based on nano-silica and water-based drilling fluid |
| abstract | The invention discloses a strong adsorption and anti-salt plugging agent based on nano-silica and a water-based drilling fluid, which belong to the technical field of oil and gas field drilling. The raw materials of the strong adsorption and anti-salt blocking agent based on nano-silica are nano-silica, amino-containing silane coupling agent, D-alanine methyl ester hydrochloride, double-bond-containing chloride and sulfonic acid-containing The amine compound with acid functional group is prepared by a step-by-step method, contains quaternary ammonium functional group and sulfonic acid functional group, and has strong adsorption performance, temperature resistance and salt resistance. Among them, the synthetic raw materials of the plugging agent are readily available, and the synthetic method is simple and reliable. The synthesized nano-silica-based strong adsorption and salt-resistant plugging agent has a particle size distribution of 146-843 nm, which can effectively plug the nano-scale pores and fractures in the mud shale well wall. The plugging agent can be directly added to the water-based drilling fluid, and has good compatibility, which can effectively prevent the drilling fluid from penetrating into the formation, thereby stabilizing the well wall and preventing collapse, and has a good effect of plugging and reducing filtration loss. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114605976-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115466603-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114957571-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114957571-A |
| priorityDate | 2022-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 96.