| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ffb7338f959400a6a869adcec4b4572e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00 |
| filingDate |
2014-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bc1d8e72b88a70cc43f5e6c2b60d175
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e95928391784353c65c5a7f4bffa42c4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0f093d13b963db6347a11d1e5476012
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7d672d324b261af18faae9dabfb0f8f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78494d25a4fca8a99307ced87b909b33 |
| publicationDate |
2015-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2015072905-A1 |
| titleOfInvention |
Viscoelastic compositions |
| abstract |
The present invention provides aqueous viscoelastic compositions comprising a cleavable surfactant and possibly also an electrolyte. The cleavable surfactants useful in the present invention comprise at least one weak chemical bond, which is capable of being broken under appropriate conditions, to produce oil soluble and water soluble products typically having no interfacial properties and surface activity compared with the original surfactant molecule. Further, the rheological properties of the aqueous viscoelastic composition are usually altered upon cleavage of the cleavable surfactant generally resulting in the elimination of the viscosifying, viscoelastic and surfactant properties of the composition. Aqueous viscoelastic compositions in accordance with the present invention are suitable for use in oil-field applications, particularly for hydraulic fracturing of subterranean formations. Thus, the present invention also relates to a wellbore service fluid and a method of fracturing a subterranean formation. The present invention also concerns novel cleavable surfactants. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11643590-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11739255-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11713412-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11746279-B2 |
| priorityDate |
2001-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |