| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_809d52e332cfd85fbb06049eb61bbd34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9731233d8160d4f79c558937e912555 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2664
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2623
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0043 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2664
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2623
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-424 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-42 |
| filingDate |
2015-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d93a7658c8e4143677e0bf708e7ed982 |
| publicationDate |
2018-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9951261-B2 |
| titleOfInvention |
Cement spacer system for wellbores, methods of making, and methods of use |
| abstract |
A cement spacer fluid for use in a wellbore includes an aqueous cement spacer carrier fluid and a preformed synthetic polymer swellable in the aqueous cement spacer carrier fluid in an amount effective to displace a drilling fluid during a cementing operation. Preferably, the polymer is particulate, and forms a hydrated pack of particles. A method of cementing a wellbore comprising a drilling fluid includes injecting the cement spacer fluid into the wellbore to displace the drilling fluid; injecting a cement slurry into the wellbore subsequent to injecting the cement spacer fluid; and hardening the cement in the slurry to cement the wellbore. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11535787-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022389302-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10480278-B1 |
| priorityDate |
2015-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |