Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent
1995-03-20
2000-04-25
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through drill string or casing
367 40, 367 85, 175 40, 166250, E21B 4400, E21B 3410, G01V 140
Patent
active
060552131
ABSTRACT:
Method and apparatus for actuating one or more downhole well tools carried by a production or workstring conduit having an imperforate wall and for blocking fluid communication between an activating fluid body and a second fluid source within said well across dynamic seals between actuating members of the well tool, by producing selective signals through the conduit wall detectable by a member to produce an activating signal for actuating the downhole well tool by a downhole energy source.
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H. Joas, 5th International Conference
Bangert Dan
Bouldin Brett W.
Jones Kevin R.
Owens Steven C.
Rubbo Richard P.
Baker Hughes Incorporated
Hunn Melvin A.
Moskowitz Nelson
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