| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d08675c803a0bb7ced3765ee1354ad34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ffb7338f959400a6a869adcec4b4572e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3127c554bc902c608d86b32c6c51aeb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-00 |
| filingDate |
2011-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f15706f464e78cb4b2b2bfe1eed981e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bddafb9b54f1c2346c5a656ba84e01e7 |
| publicationDate |
2013-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2013269940-A1 |
| titleOfInvention |
Retarded Cement Compositions and Methods for Well Completions |
| abstract |
Cement retarders are based on blends of lignosulfonate compounds, borate compounds and gluconate compounds. The compounds are present in certain ratios that allow the retarders to operate at temperatures and pressures up to and exceeding about 176° C. and 152 MPa. The retarders may also be provided in liquid form, improving their suitability for use at offshore well-site locations. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11597863-B2 |
| priorityDate |
2010-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |