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7252304 |
Positioning vehicle for positioning a test probe
Described is a method for operating a positioning vehicle for positioning a test probe in defined intervals along a travel line, as well as to a positioning vehicle for carrying out the method. The...
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7182133 |
Elevator sensor
At least one sensor is mounted for monitoring the vertical position of an elevator relative to selected features on a tubular string. A variety of sensor types is provided. Optional mounting...
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6996913 |
Circumferential measurement of tubular members
An apparatus and method are provided for circumferentially measuring cross-sectional characteristics of a tubular member. The apparatus includes first and second template members that cooperably...
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