| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d53347eec34cfeab996996b4019e66e7 |
| 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/C09K8-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate |
2016-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a505bfafd6869681c7d831e4673767f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95934eeafd722558c9eba3257e882b21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6a9feaeae0cb0cc7384a1c69040037a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8f85b71d8fd67cf1cbf0c37d3605754
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3af8726480e1c62463e9414fff74b201
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73681980ad67b530bda7b0b9ca52e98a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c736de7f6ab523c4b483055f2c061875 |
| publicationDate |
2017-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3202871-A1 |
| titleOfInvention |
Drilling fluid additive composition and high temperature resistant clay-free whole-oil-based drilling fluid |
| abstract |
The present invention relates to the field of petrochemical drilling and discloses a drilling fluid additive composition. The composition contains rheological modifier, emulsifier and tackifier. Among them, the rheological modifier is dimer acid-organic amine copolymer comprising structural units from dimer acid, structural units from alkylamine and structural units from arylamine; the tackifier is modified polysiloxane nano-particles, and the modifying group Z on the polysiloxane nano-particles isn nthe emulsifier is one or more of the compounds represented by the following Formula (1). The present invention further provides a high temperature resistant clay-free whole-oil-based drilling fluid containing the foregoing composition. Through synergistic effect of the rheological modifier, the emulsifier and the tackifier in the composition, the present invention obtains a clay-free whole-oil-based drilling fluid with desirable suspending power and temperature resistance. |
| priorityDate |
2016-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |