http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2089095-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b502fde933db1d6126d10bbcbddb83ea |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-26 |
| filingDate | 1991-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b08e8d2ae847e9c9ac5f619f27e3a7b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5c1a9c759eefcde92a81528b3ca007f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4504010e699aae6d235de9ab9c6a9047 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79a0c96f8524e2a9caaee37017775ca0 |
| publicationDate | 1992-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2089095-A1 |
| titleOfInvention | Use of surface-active ester |
| abstract | Described is the use of surface-active salts of internally sulphonated esters, in which most of the sulphur is organically bound, made from at least once olefinically unsaturated carboxylic acids with at least 8 C-atoms and lower monohydric and/or polyhydric alcohols (ester sulphonate salts) as environmentally compatible emulsifiers of the water-in-oil type or oil-in-water type in fluid, pumpable bore-flushing agents or other drilling fluids which have, in addition to an aqueous phase, a closed or disperse oil phase and are suitable for the non-polluting exploitation of natural deposits of e.g. oil or gas. The invention also concerns in particular invert bore-flushing agents with a closed oil phase containing a disperse aqueous phase and which contain, in addition to emulsifiers, other usual additives such as thickeners, fluid-loss additives, filling agents, water-soluble salts and alkali reserves. The invert bore-flushing agents are characterized in that they contain, in addition to an environmentally compatible closed oil phase, surface-active ester sulphonate salts of the kind stated as the emulsifier or as a component of the emulsifier. |
| priorityDate | 1990-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.