4-Arm Dipmeter Probe

The 4-Arm Dipmeter measures microresistivity and tool orientation data.

These can be processed to determine formation dips.

Principle of Measurement: 

The probe consists of a microresistivity section and a detachable verticality module. Microresistivity data is acquired by four highresolution, button electrodes mounted on motorised XY caliper arms and maintained in contact with the borehole walls. A planar formation feature that does not lie perpendicular to the borehole axis is detected by each electrode at a different apparent depth. The four microresistivity measurements are correlated and combined with the verticality data to calculate the dip and dip direction.

For detailed specifications, please contact EPC!