Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation
AssigneeHalliburton Energy Services, Inc.
InventorsChristian Reding, James Cernosek
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Abstract
Disclosed herein are methods and systems for capturing a large collection of downhole fluid samples and, more particularly, disclosed are methods and systems for using at least two hydraulic pressure lines to alternatingly actuate hydraulic valves disposed in an interlinked series to obtain any large collection of hydraulically actuated components to be energized in sequence. A large collection of downhole fluid samples may be defined as any number of downhole fluid samples wherein the number of downhole fluid samples is larger than the number of actuators.
Claims17
A system comprising a fluid sampling tool comprising:
- at least one probe in fluid communication with a formation;
- at least one passageway that passes through the at least one probe and into the fluid sampling tool;
- at least two fluid sampling vessels in fluid communication with the at least one passageway;
- at least two valves controlling the fluid communication between the at least two fluid sampling vessels by way of hydraulic valve and the at least one passageway;
- and
- at least one actuator that controls the at least two valves, wherein a number of the at least two valves is larger than a number of the at least one actuator.
Dependencies are inferred from the claim text.