Accelerometer caliper while drilling

Acoustic wave transmission system and method for...

Apparatus and method for downhole dynamics measurements

Apparatus and method for formation testing while drilling...

Apparatus and method for measuring forces on well logging...

Apparatus and method of monitoring and signaling for...

Apparatus for measuring downhole drilling efficiency parameters

Apparatus for measuring forces on well logging instruments

Apparatus for weight on bit measurements, and methods of...

Apparatus for weight on bit measurements, and methods of...

Atomic clock for downhole applications

Atomic clock for downhole applications

Combination drill motor with measurement-while-drilling electron

Detecting and reducing bit whirl

Determination of drill bit rate of penetration from surface meas

Downhole densitometer

Downhole densitometer

Downhole seal assembly having embedded sensors and method...

Downhole sub for instrumentation

Fluid property sensors