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NL9002378A
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Borehole casing thickness determn. method - selects reverberation segment from reflected acoustic signal
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GB9014870D0
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Analysis of drilling solids samples
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EP0409304A1
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Method of monitoring the drilling of a borehole
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GB9011501D0
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Pipe rheometer
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GB9011527D0
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Method of quantitative analysis of drilling fluid products
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EP0296041A1
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Inversion of a vertical seismic profile by minimization of an entropy like function
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EP0290337A1
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Seismic signals equalization method
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EP0290336A1
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Seismic signal velocity filtering
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EP0281481A1
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A device for placing a radioactive source in a formation through which a borehole passes
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EP0264511A1
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Video camera for borehole inspection
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EP0182683A1
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Process for detecting underground fractures using an acoustic tool
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EP0176408A1
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Method and measuring apparatus for the inspection of a borehole provided with a tube
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FR2538849A1
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METHOD AND DEVICE FOR DETERMINING THE FLOW PROPERTIES OF A FLUID IN A WELL FROM TEMPERATURE MEASUREMENTS
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EP0069008A1
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Method and apparatus for determining the flow characteristics of a fluid in a well bore
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EP0102091A2
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Electromagnetic logging apparatus
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EP0053525A1
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Method and apparatus for seismic exploration using the vertical seismic profiling technique
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EP0055634A1
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Method of recording a physical characteristic of a borehole casing
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EP0070943A1
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Natural gamma ray spectrum analysis and filtering technique
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EP0035421A1
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Logging sonde housing and process for its manufacture
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EP0031744A2
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Method and apparatus for determining the flowing properties of a fluid
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