Formation tester tool assembly and methods of use

Details Formation tester tool assembly and methods of use Formation tester tool assembly and methods of use

2007-08-28

2007-08-28

Raevis, Robert (Department: 2856)

Measuring and testing

Borehole or drilling

Fluid flow measuring or fluid analysis

Reexamination Certificate

active

11133712

ABSTRACT:
A downhole, extendable testing apparatus and methods of use are described and claimed herein. In one embodiment, an extendable sample device is connected to a draw down piston assembly. A position indicator may be used to show the position of the draw down piston during movement, and the draw down piston may be stopped and re-started, and moved at different rates. A filter may be used to clean fluids drawn into the extendable sample device. In another embodiment, the extendable sample device may connected to a hydraulic circuit. The hydraulic circuit may include accumulators for accumulating fluid pressures and operating the apparatus. Further apparatus and methods are disclosed herein.

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