Apparatus for measurement

Apparatus for measuring and recording data from boreholes

Apparatus for measuring downhole drilling efficiency parameters

Apparatus for measuring the proportions of fluids flowing in...

Apparatus for measuring weight, torque and side force on a...

Apparatus for milling a well casing

Apparatus for mixing gas and liquid at a downhole location

Apparatus for monitoring a parameter in a well

Apparatus for monitoring a parameter in a well

Apparatus for monitoring and controlling well drilling...

Apparatus for mounting an electronic device for use in...

Apparatus for mounting underwater equipment

Apparatus for obtaining high quality formation fluid samples

Apparatus for obtaining ring-shaped cavities in the bottom...

Apparatus for operating a gas and oil producing well

Apparatus for optimizing production of multi-phase fluid

Apparatus for optional straight or directional drilling...

Apparatus for orienting tools

Apparatus for passing electrical current through an...

Apparatus for perforating casing