Multi-Probe Reservoir Sampling Device

摘要

A tool insertable into a wellbore for sampling formation fluids includes a body, and sample probe assemblies that project radially outward from the body and into sampling contact with the wellbore wall. Packers are provided on the outer terminal ends of the sample probe assemblies and which are urged against the wellbore wall. Actuator driven linkage assemblies selectively deploy and retract the packers from and back into the body. The sample probe assemblies are disposed at substantially the same axial location on the body, and are angularly spaced about an axis of the body. Each sample probe assembly is independently actuated, so that a discrete azimuthal portion can be sampled, and each has a dedicated sample container for storing sampled formation fluid.

主权项

1. A downhole tool for sampling formation fluid in a wellbore comprising:
a body; and sample probe assemblies that comprise,
linkage assemblies,pad assemblies that selectively project radially outward from the body on the ends of the linkage assemblies and into sampling engagement with a wall of the wellbore at substantially the same measured depth in the wellbore, andactuators in the body coupled with each one of the linkage assemblies and that are each selectively operated independently from the other actuators.