| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5389a0bd6b0a50a54b4cccb68d170b43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4ad47a710592aac1049423166df4e2bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_818473142cf8fc0f7700fd9549d2a5e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6eb36f4084f1900a715f72f31fa353a6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4bf706079a8d5bdcba5464bd1109f85 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-068 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-06 |
| filingDate |
2001-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8fec4750a867d26c6908f30604b03198
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65384702169e95b39d7e686c2886ef0b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b42d29a0ec00a0ed98baf908700555c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1be71789005352854dbd7384136c181d |
| publicationDate |
2002-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0220691-A2 |
| titleOfInvention |
Use of water soluble demulsifiers in separating hydrocarbon oils from clays |
| abstract |
Oil based drilling fluids (muds) that include clays can be broken into at least three layers of their respective components (oil, water, and clay) by adding a few weight percent of a high HLB surfactant prediluted in water. Centrifugation can accelerate this separation process. The resulting oil, water, and clay layers can thereafter be more cost effectively recycled or disposed of following the process. In another embodiment an additional surface active agent is added to facilitate breaking the drilling mud into three or more phases without the centrifuge. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7867399-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008031806-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7935261-B2 |
| priorityDate |
2000-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |