| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c8abd22b36e9c94090f9889ecf27cb5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa167897a816e0e598235c706de2c370
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_205ed467ee37eb7413662b5e118197f7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04a25ddcc405fe1eb2c9f5459a07a67b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0049
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0051
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2111-00155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2111-00146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0062 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0675
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B40-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 |
| filingDate |
2004-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fc934d101ea9cb5ecfd3db43346aa50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed0217f2524070a6c8069faa6f5eeb30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3df05ab6ca298b77f94e712c255ef63f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62d564c87eba2b5d3e2b9d98464fc2bb |
| publicationDate |
2006-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1625279-A1 |
| titleOfInvention |
Self adaptive cement systems |
| abstract |
A self-adaptive cement system includes cement, water and at least one additive that reacts or and expands in contact with oil and gas. Several chemical products have been identified including rubber alkylstyrene, polynorbornene, resins such precrosslinked substituted vinyl acrylate copolymers and diatomaceous earth. These additives have the effect of making the cement self-healing in the event of physical failure or damage such as micro-annuli. The self healing property is produced by the contact with subterranean hydrocarbon fluids, the potential repair mechanism is thus activated if and when needed in case of start of loss of zonal isolation. In another embodiment, the expansion is deliberately induced by pumping a hydrocarbon fluid in the vicinity of the set cement. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103498655-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103498655-A |
| priorityDate |
2003-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |