http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2932996-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a05fb8bf813d9259317cf75b0392738b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-706 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-536 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B37-06 |
| filingDate | 2016-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74e86196c83699d3cd9d8ca0b69d235a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e5cbb643ac6c5182dbe54f0449a20ac |
| publicationDate | 2016-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2932996-A1 |
| titleOfInvention | Compositions and methods for filter cake removal |
| abstract | The present disclosure provides compositions for removing filter cake from a subterranean borehole and methods for degrading filter cake and filter cake removal. The composition contains an encapsulated peroxygen (e.g., acrylic resin coated ammonium persulfate), a surfactant (e.g., nonionic surfactant), and optionally an unencapsulated peroxygen. The method (e.g., a one-step method) involves contacting the filter cake with the composition, and allowing the composition to remain in contact with the filter cake for a period of time sufficient to degrade the filter cake. The reaction of the composition with the filter cake results in acidic conditions, thereby eliminating any need for follow up acid treatments. The composition is stable enough to effectively remove filter cake at temperatures up to 250°F or greater. Through filter cake removal, the method provides for increased flow, production, and/or recovery of oil and gas hydrocarbons from a subterranean formation. |
| priorityDate | 2015-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.