| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e1101455ae12ff95f83bd6002664083f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a19eed3131fbaa9c3de1dd1198c0839
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cac4ca8509c3ca45aca9a0274628c6e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-26 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-032 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate |
2009-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd0fe664a87eb04b1cce51a467ee2bd3 |
| publicationDate |
2009-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2009114611-A2 |
| titleOfInvention |
Viscosity reducer for water-based muds |
| abstract |
A method of reducing the viscosity of a water-based drilling fluid without requiring dilution. The method of reducing the viscosity of a water-based drilling fluid, includes: providing a water-based drilling fluid containing a peroxide degradable polymer and a weighting agent, adding a viscosity reducing additive containing an inorganic peroxide to the water-based drilling fluid while maintaining the pH of the water-based drilling fluid at a pH greater than about 8, circulating the water-based drilling fluid having a pH greater than about 8 through a wellbore, and heating the circulating water-based drilling fluid to a temperature of at least about 150 °F so as to activate the inorganic peroxide to degrade the peroxide degradable polymer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014190335-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017025642-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112662384-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3004285-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9969927-B2 |
| priorityDate |
2008-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |