Non-conductive logging sonde housing

Details Non-conductive logging sonde housing Non-conductive logging sonde housing

1981-02-20

1984-07-24

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

73152, 174 52S, 324323, G01V 318, H05K 500

Patent

active

044619979

ABSTRACT:
A logging sonde housing includes a stack of ceramic rings (26) surrounded by a first layer (33) of reinforced plastic material. Elastic seals (28) are placed between the rings and kept under compression by the layer of plastic material. A second elastomeric layer (34) is provided around the plastic material to ensure sealing. A third layer (35) of reinforced plastic material protects the elastomer, and a fourth layer (36) of a fabric impregnated with a more resilient plastic material improves the abrasion and shock resistance. The assembly forms a housing (18) resistant to borehole pressure for receiving, for example, electromagnetic transducers of the antenna or coil type.

REFERENCES:
patent: 2633485 (1953-03-01), Patnode
patent: 2857451 (1958-10-01), Barclay
patent: 3065404 (1962-11-01), Mayes et al.
patent: 3377549 (1968-04-01), Newman et al.
patent: 3403328 (1968-09-01), Fossati et al.
patent: 4278942 (1981-07-01), Bonnet et al.

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