Methods of perforating and testing wells using coiled tubing

Modified formation testing apparatus with borehole grippers...

Modular downhole inspection system for coiled tubing

Modular measurement while drilling sensor assembly

Monitoring drilling mud circulation

Monitoring drilling mud composition using flowing liquid junctio

Motor driven spinner flow meter

Mud gas ratio and mud flow velocity sensor

Mud metering tank monitoring system

Mud sampling chamber

Multi-channel pipe for monitoring groundwater

Multiple arm pad instrument for logging highly deviated borehole

Multiple caliper arms capable of independent movement

Multiple channel pressure recorder

Multiple flow rate formation testing device and method

MWD tool for measuring weight and torque on bit

Neutron method for determining residual oil-phase fluid concentr

NMR Analysis of subterranean reservoir samples immersed in liqui

Oil and gas well logging system

Oil well instrumentation system