Acoustic sensor for downhole measurement tool

Apparatus and method for analyzing a retrieving formation fluid

Apparatus and method for determining a drilling mode to...

Apparatus and method for determining measures of the...

Apparatus and method for drilling boreholes

Apparatus and methods for measuring mud slowness in a borehole

Azimuthal resistivity using a non-directional device

Borehole strainmeter

Cuttings sample catcher and method of use

Determination of correct horizontal and vertical...

Determination of correct horizontal and vertical...

Determination of the porosity and permeability of a geological f

Determining horizontal and vertical permeabilities by...

Determining the length and azimuth of fractures in earth formati

Downhole depth correlation and computation apparatus and methods

Downhole determination of formation fluid properties

Downhole measurement of formation characteristics while...

Downhole measurement of formation characteristics while...

Dynamic logging speed

Formation tester pretest using pulsed flow rate control