Pad production log tool

Parallel seismic depth testing using a cone penetrometer

Passive flowmeter for determining the flow rate and the directio

Percolation test apparatus

Percussion method and apparatus for the investigation of a casin

Permanently installed in-well fiber optic...

Permeability determinations through the logging of subsurface fo

Phase change analysis in logging method

Phase change analysis in logging method

Pipeline monitoring array

Plug release indicator

Polish rod temperature sensing system and rod stroking control

Polished rod load transducer

Pore pressure formation evaluation while drilling

Porosity estimation method in carbonate rock

Portable tester for downhole motors

Portable well analyzer

Power control system for subsurface formation testing apparatus

Practical methods to estimate horizontal and vertical...

Precision measuring system for down-hole production logging oil