| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ffb7338f959400a6a869adcec4b4572e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-424 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24 |
| filingDate |
2012-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a2f028b00d9d000fa3cb54f31565648
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce7201a265b28f0a3c325e3cbe91e45c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4657822a9f5ce6e05b62f816a37cf82a |
| publicationDate |
2018-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9938447-B2 |
| titleOfInvention |
Compositions and methods for completing subterranean wells |
| abstract |
Spacer fluids that are stable at temperatures up to at least 260° C. comprise water, polystyrene sulfonate and a mixture of particulate materials. The particulate materials may be chosen such that the mixture has at least a trimodal particle-size distribution. The fluids may further comprise inorganic clays, mutual solvents and surfactants. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021107960-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10988676-B1 |
| priorityDate |
2011-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |