Downhole instrument including a flexible probe which can travel

Details Downhole instrument including a flexible probe which can travel Downhole instrument including a flexible probe which can travel

1983-01-28

1985-06-18

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

33304, 73151, 166250, 166297, 174 52PE, 250256, 324346, 324347, G01V 318, E21B 4700, E21B 2902

Patent

active

045243247

ABSTRACT:
Bore hole instrument and methods of manufacturing and using the same. The instrument includes an elongated flexible probe which is inserted into a bore hole and can travel freely around bends of relatively short radius in the hole. The probe includes a plurality of sensors, explosive charges or the like which are spaced apart and embedded in a flexible body comprising a mass of cushioning material, with a flexible outer casing of fabric having a high tensile strength. The probe is driven into a bore hole in piston-like fashion, and the flexible body enables the probe to travel freely around bends of relatively short radius. Instrumentation for processing signals from the probe is located at the surface of the earth, and a flexible cable interconnects the instrumentation with the probe.

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