Earth formation pressure measurement with penetrating probe

Details Earth formation pressure measurement with penetrating probe Earth formation pressure measurement with penetrating probe

1998-10-15

2000-12-26

Larkin, Daniel S.

Measuring and testing

Borehole or drilling

7315202, 7315217, 7315224, 166100, 1662542, 175 50, 175 59, E21B 4710, E21B 4910

Patent

active

06164126&

ABSTRACT:
The present invention relates to an apparatus and method for measuring a property of a subsurface formation intersected by a wellbore, which contemplate the use of a tool body adapted for movement through the wellbore. Actuating means is carried by the tool body, and a probe is propelled by the actuating means for movement of the probe between a retracted position within the wellbore and an extended position penetrating a wall of the wellbore such that the probe engages the formation. The probe is adapted for substantially producing a seal at the wall of the wellbore as the probe is moved to the extended position, and the probe has means therein for measuring the property of the formation engaged by the probe.

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