| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bed1b4c7d58089fb8f0b6fcf195f7afe |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F251-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B37-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L5-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate |
2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a8b30f4ea830248a47bf6e9af4cbac5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32ff9f5e1fb2dc0ad9527b8b8844de13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c5d38f7e842ddb615b888c008e44914
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5e06927b3b3b0bd35bef8750b1994de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf796f5191a1bc7db076ddac428d3337
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28aaed15873d5ca37db7abb21e562c9d |
| publicationDate |
2016-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2016053156-A1 |
| titleOfInvention |
Biomimetic polymer for stabilizing wellbore and method for preparation of the same and drilling fluid |
| abstract |
The present invention provides a biomimetic polymer for stabilizing wellbore, a method for preparation of the biomimetic polymer, and a drilling fluid. The polymer contains carboxymethyl chitosan that serves as a backbone and dopamine-derived groups grafted on the backbone. The polymer provided in the present invention can improve the strength of shale in the wellbore, seal the shale pores and reduce the filter loss of drilling fluid, and thereby attains an effect of stabilizing the wellbore in shale formation in drilling process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9834717-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9790417-B1 |
| priorityDate |
2014-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |