Data transmission system for logging tools

Details Data transmission system for logging tools Data transmission system for logging tools

1981-05-19

1985-03-19

Tubbesing, T. H.

Communications: electrical

Wellbore telemetering or control

In horizontal or inclined passage arrangement

367 76, 376119, G01V 140, G01V 512

Patent

active

045062633

ABSTRACT:
A system for storing and transmitting pulse count information is disclosed wherein electrical pulses produced by logging tools, such as thermal neutron, are counted and stored downhole to remove the effect of lengthly transmission lines. In a further embodiment a coded multiplexed signal is transmitted uphole indicating the tool from which the transmitted data was received and the total count for a predetermined time period.

REFERENCES:
patent: 3309521 (1967-03-01), Bargainer, Jr.
patent: 3435224 (1969-03-01), Zemanek, Jr.
patent: 3991611 (1976-11-01), Marshall et al.
patent: 4012712 (1977-03-01), Nelligan
patent: 4072923 (1978-02-01), Siems et al.

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