Oil well logging probe assembly

Details Oil well logging probe assembly Oil well logging probe assembly

1976-07-06

1978-06-27

Yasich, Daniel M.

Measuring and testing

Instrument casing

73151, 174 77R, 174 89, E21B 47024, H02G 1522

Patent

active

040967522

ABSTRACT:
A cylindrical high temperature logging tool assembly supended from the shield of a coaxial cable for insertion into the interior of a well bore. To isolate the instruments contained within the interior of the cylindrical assembly from the fluids or steam within the well bore, and to facilitate assembly, the cylindrical oil tool comprises a plurality of axially aligned segments including a grease holding cavity at the end thereof wherein a quantity of non-conducting grease is packed and is compressed therein by the threadable engagement of the sections. Since most greases are generally incompressible, the threaded assembly provides a technique by which the grease pressure level within the housing can be achieved which are greater than the pressure head within the well bore. In this manner an integral structure is provided which can be deployed at various depths within the well bore and which furthermore provides selective arrangement of sections to arrange the requisite instrumentation for well bore logging.

REFERENCES:
patent: 2297828 (1942-10-01), Hatford
patent: 2877031 (1959-03-01), Lee
patent: 2939906 (1960-06-01), Harwood
patent: 3054848 (1962-09-01), Reesby et al.
patent: 3503444 (1970-03-01), Owen
patent: 3681739 (1972-08-01), Kornick
patent: 3692106 (1972-09-01), Basham et al.
patent: 3781456 (1973-12-01), Knowles et al.
patent: 3910165 (1975-10-01), Sheesley et al.

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