http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014349895-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12 |
| filingDate | 2014-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c517c689b9d4bdfd6476899098a5979 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37b3fc45e6c2b0c88bc20f34f9a82997 |
| publicationDate | 2014-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2014349895-A1 |
| titleOfInvention | Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent |
| abstract | An invert emulsion drilling fluid comprises: an external phase, wherein the external phase of the drilling fluid comprises a hydrocarbon liquid; an internal phase, wherein the internal phase of the drilling fluid comprises a hygroscopic liquid; and a suspending agent, wherein the suspending agent is a polymer comprising urea linkages or urea and urethane linkages. The hygroscopic liquid comprises a salt and a suitable solvent or comprises an alcohol. The drilling fluid can exclude an organophilic clay or organophilic lignite. A method of using the invert emulsion drilling fluid comprises: introducing the drilling fluid into at least a portion of a subterranean formation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10472555-B2 |
| priorityDate | 2011-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 216.