Recording system for a borehole logging tool

Details Recording system for a borehole logging tool Recording system for a borehole logging tool

1982-04-01

1985-08-27

Cangialosi, Salvatore

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

73151, 181102, 324323, 346 33WL, G01V 140, G01V 318, G01V 504

Patent

active

045382484

ABSTRACT:
A borehole logging system includes a borehole logging tool, a logging tool depth encoder for indicating rate of movement of the logging tool, a moving recording medium, and a recording encoder for indicating the actual rate of movement of the recording medium. The logging rate indicated by the depth encoder is used to provide a signal representative of a desired recording rate. This desired recording rate is compared to the actual recording rate and correction made to the recording rate when there is a variance between such desired and actual recording rates.

REFERENCES:
patent: 3185994 (1965-05-01), Woods et al.
patent: 3356990 (1967-12-01), Sloughter
patent: 3488661 (1970-01-01), Tanguy
patent: 3490150 (1970-01-01), Witfill, Jr.
patent: 3845492 (1974-10-01), Tejada
patent: 4297879 (1981-11-01), Howells et al.

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