http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1340883-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-921 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-26 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-887 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-62 |
| filingDate | 2003-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c21d348da22f9b057d9285604289d29f |
| publicationDate | 2003-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1340883-A2 |
| titleOfInvention | Aminocarboxylic acid breaker compositions for fracturing fluids |
| abstract | It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120°F (49°C) and about 280° F (138°C). The aminocarboxylic acids are believed to act directly on the polymer and not to any great extent or not to as an effective extent on a crosslinking agent, if present. The polymer may be a polysaccharide, and the aminocarboxylic acid may be selected from the group including, but not necessarily limited to, tetrasodium ethylenediaminetetraacetic acid (Na 4 EDTA), tetrasodium propylenediaminetetraacetic acid (Na 4 PDTA), trisodium hydroxyethylenediaminetetraacetic acid (Na4HEDTA), trisodium nitrilotriacetic acid (Na 3 NTA), salts of these acids, and mixtures thereof. |
| priorityDate | 2002-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 111.