| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B2200-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B23-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-108
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-063 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-10 |
| filingDate |
2010-02-09^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_842935fde6bcceafc298c1d3d8a24833
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bfd25dc2babc713c42e47126f26bf3f |
| publicationDate |
2010-08-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2216500-A2 |
| titleOfInvention |
Hydraulic lockout device for pressure controlled well tools |
| abstract |
well tools are provided which although pressure responsive, may be maintained by a hydraulic lockout in a nonresponsive condition until a threshold actuation step is performed. This lockout may be achieved by a hydraulic mechanism (130) which controls the rate at which pressure is transmitted to a fluid spring during periods of increased pressure at the pressure source. When the tool is desired to be responsive to pressure cycles, a valve may be opened by establishing a differential between the pressure in the fluid spring and the pressure source. Communication of pressure in the fluid spring to a movable mandrel will then allow operation of the well tool in response to pressure cycles at the pressure source in accordance with the established design of the well tool. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9458697-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8695710-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012107730-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2012215163-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8991509-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107100587-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107100587-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9784070-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9428976-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8899334-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8668016-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2597939-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3404200-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103415674-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103415674-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8662178-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8893811-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8668012-B2 |
| priorityDate |
2009-02-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |