http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0767820-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4bf706079a8d5bdcba5464bd1109f85 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M151-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M135-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M151-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M135-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 |
| filingDate | 1996-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d2a90824c3f7d1e113bd8809851e72e |
| publicationDate | 1997-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0767820-A1 |
| titleOfInvention | Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| abstract | This invention relates to a composition comprising a water-in-oil emulsion formed from a brine, a liquid oil, (A) an emulsifier, (B) a friction modifier of formula (I) where X = 1 to 4; z = 1 to 6; Q = 0 to 2; R1 and R2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of R1 and R2 is between 0 and about 16; R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms; and R' is selected from the group consisting of H, an aliphatic group containing between 1 and an average of about 18 carbons; and formula (II), where Q, X, z, R1, R2, R' and R' are defined as set forth above, and Y is 0 to 5. In a preferred embodiment, z is 1. In the most preferred embodiment, Q = 0, R1 and R2 are both H, X and z all equal 1, R' is n-dodecyl, and R' is H. The compositions of the present invention have beneficial lubrication properties. These compositions are useful in drilling, working and completing well bore holes. |
| priorityDate | 1995-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 319.