| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6660167441edb2ac3d2d8445b278307
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7e76c7e2a27e0d048480bd4b7d88d19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9c7d51b437e803585b41bd03c5bb35e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e0c23af02d69f1f0cd2b967621353332 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-665
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68 |
| filingDate |
2010-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ea62e2d27a484a9581606d042668288
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7dde9ab346131be9d3298bcd4d6c6135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb54e3e8915d6c0a5b7ad5f84f7bceca |
| publicationDate |
2010-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2010141099-A2 |
| titleOfInvention |
Methods and compositions for viscosifying heavy aqueous brines |
| abstract |
A method for viscosifying brine systems utilized in oilfield applications comprising: a) preparing a heavy brine system comprising obtaining an aqueous brine system comprising a hydrated polysaccharide and at least one multivalent salt, wherein the density of the aqueous brine system is greater than about 10 pounds per gallon (ppg), and adding an effective amount of an alkaline agent, thereby increasing the viscosity of the brine system. Also disclosed are methods for viscosifying brine systems utilized in well servicing applications comprising obtaining an aqueous brine solution comprising at least one multivalent salt, wherein the density of the aqueous brine system is greater than about 10 pounds per gallon (ppg); adding a polysaccharide; adding an effective amount of an acid buffering agent to the brine system to lower the pH of the brine system, whereby the polysaccharide is capable of substantially hydrating into the brine system; and adding an effective amount of an alkaline agent, thereby substantially increasing the viscosity of the brine system. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11407647-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019095035-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103781873-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2012304562-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013036616-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11319481-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106433601-A |
| priorityDate |
2009-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |