| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_121810e3332d8b2af6e31365a177aaf3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-465
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0051 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-0026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-124
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-14 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16 |
| filingDate |
2015-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebe72955fa583d5c0e92d87a5156bb67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c144758ecb3f74cc1cdbef410e64184
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eda5032ffba0b0ed1173f6bb4bbfa192 |
| publicationDate |
2019-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10399902-B2 |
| titleOfInvention |
Method to reduce the water loss in slurries or solutions used in oil field and gas field operations |
| abstract |
The present invention relates to a method to reduce the water loss in slurries and solutions used in oil field or gas field operations, for example for drilling, cementing and completion operations by adding a copolymer having a high molecular weight characterized by a K value of at least 300, said copolymer comprising structural units derived from monomers having sulfonic acid or derivative thereof, phosphonic acid or derivative thereof and acrylamide functionality. |
| priorityDate |
2014-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |