http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013177237-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_697f253d7a61159e3a2176d05768a561 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B37-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-52 |
| filingDate | 2013-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d6684131172a2ed01f0aff3890ad169 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a51c1cc774c1f50fe5fbd24c6e2d70a |
| publicationDate | 2013-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2013177237-A1 |
| titleOfInvention | The use of oligo-quaternary compositions to increase scale inhibitor lifetime in a subterranean formation |
| abstract | A method of inhibiting scale in a subterranean formation comprises pretreating the subterranean formation with a polyquaternary amine that serves as a squeeze life extention (SLE) agent, and then introducing a scale inhibitor pill into the subterranean formation, wherein the scale inhibitor pill includes one or more scale inhibitor compositions. For example, the polyquaternary amine may be a polymer having up to 5 quaternary amine centers, but is preferably a nonpolymeric diquaternary amine having a molecular weight of from 250 to 500. One such example is 1,3-propandiaminium, 2-hydroxy-N,N,N,Ν',Ν',Ν'-hexamethyl-, dichloride. The SLE agent is preferably introduced into the formation in a brine solution having a concentration from 0.1 to 20 weight percent. The SLE agents may be used with a variety of known scale inhibitors and scale inhibitor chemistries. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015116394-A1 |
| priorityDate | 2012-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 124.