| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_77564465c43004b6872777dc4e8371cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9dae0bd9e398c32c603389bdc3f06437
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c141c4cd4b41ff8e92cebbf9fd4bf7dc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b682a0efab256d2f242ee741b3a3e5e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-487 |
| filingDate |
2011-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f2546aeb782d0e25a54f3dc50bea102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84e8dce6572ebebdf6655bad2c9b0203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bc478fe5c66e5518d1f26b28fcdd72e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ed4dc394e4325a531b0697c51c6f0d9 |
| publicationDate |
2012-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2012052712-A2 |
| titleOfInvention |
Wellbore cementing compositions and methods of making and using same |
| abstract |
A method of cementing a wellbore comprising preparing a wellbore cementing composition comprising a cementitious materials and a modified biopolymer additive wherein the modified biopolymer additive is the reaction product of a process comprising contacting a biopolymer and an organic carbonate to form a reaction mixture and subjecting the reaction mixture to a temperature of from about 100 °F (38°C) to about 250 °F (121°C) and placing the wellbore cementing fluid in the wellbore. A method of cementing a wellbore comprising contacting a modified biopolymer additive with a cementitious slurry to produce a wellbore cementing composition having an initial viscosity, v 0 : placing the wellbore cementing composition to a desired depth in a subterranean formation wherein the wellbore cementing composition has a transitional viscosity, v t , during placement in the subterranean formation and a final viscosity, V f , at the desired depth wherein V f ≥V t >v 0 ; and allowing the wellbore cementing composition to set. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8720562-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11207089-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11540851-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013255804-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11497517-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10568651-B2 |
| priorityDate |
2010-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |