| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_989ecca69fc47fadd546bf9a0db59629 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2682 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 |
| filingDate |
2016-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfc76c8381cd3229abb4887afc34104b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb9df5f791ef743ad3c9c72a7fd81163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5979c9826ffc5e3865a3aca9862a6efa |
| publicationDate |
2016-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2016186037-A1 |
| titleOfInvention |
Amphoteric polymer suspending agent for use in calcium aluminate cement compositions |
| abstract |
A cement composition for use in a well that penetrates a subterranean formation comprises: a calcium aluminate cement or calcium magnesia cement; water; a fluid loss additive; and a suspending agent, wherein the suspending agent is a polymer and wherein the polymer: (A) is amphoteric; (B) has a molecular weight greater than 100,000; and (C) does not increase the fluid loss of the cement composition greater than 15% at a temperature of 145° F. (63° C.) and a pressure differential of 1,000 psi (7 MPa) compared to a cement composition consisting of the cement, the water, and the fluid loss additive. A method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation; and allowing the cement composition to set. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020005255-A1 |
| priorityDate |
2013-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |