Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 |
filingDate |
2013-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_220456ae75b3ed25ffedba1161e2bb57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_929c7fbb84b3deff8829f5193aa1edbc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_518027d2101441d24448504b360370cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f31f65fd0e3f55d731b9de759b2b7dab |
publicationDate |
2013-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-2013169402-A1 |
titleOfInvention |
Methods and materials to enhance high temperature rheology in invert emulsions |
abstract |
An invert emulsion drilling fluid, and a method of drilling with such fluid, having improved rheology at low mud weights and high temperatures. The improved rheology is effected with addition of a rheology additive of the invention comprising fatty dimer diamines or dimer diamines and an organic acid or ester of the acid. A nonlimiting example of such a rheology additive comprises a C36 fatty dimer diamine and adipic acid or dimethyl adipate. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11028043-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112166101-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019135949-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10934249-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10343976-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021007531-A1 |
priorityDate |
2012-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |