Oilfield monitor and recorder

Details Oilfield monitor and recorder Oilfield monitor and recorder

1982-07-23

1986-02-11

Gruber, Felix D.

Boots, shoes, and leggings

731515, 346 33WL, E21B 4700, G06F 1546

Patent

active

045702349

ABSTRACT:
An oilfield monitor and recorder system providing marker positioning using a leadscrew, a stepper motor, a position sensor, driver and control. The control provides zero, span, slew and range functions. The rate input scaling provides calibration, percent, sum to monitor and sum to recorder controls. The pressure input scaling provides zero, span and calibration controls, therefore the input signals are calibrated and scaled for presentation to display and marker control circuits. Record advancement uses tractor drives, stepper motor, precision time base, driver and control in order to provide an accurate time record relationship. This portable battery powered system and apparatus is housed in a briefcase size enclosure. The electrical signals obtained from a plurality of physical conditions are processed, recorded and displayed on respective recorder and display channels, which particularly meets the oilfield stimulation service industry requirements for a portable monitoring and recording apparatus.

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patent: 3876016 (1975-04-01), Stinson
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patent: 4310887 (1982-01-01), Suau
patent: 4350979 (1982-09-01), Eberwein
patent: 4352166 (1982-09-01), Schoonover
patent: 4393485 (1983-07-01), Redden
patent: 4432064 (1984-02-01), Barker et al.

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