Drilling fluid density measurement system

Details Drilling fluid density measurement system Drilling fluid density measurement system

1986-06-04

1987-09-22

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

73439, 73153, G01N 928, E21B 4700

Patent

active

046946926

ABSTRACT:
A drilling fluid density measurement system uses a continuously operating bubble measurement system for an oil or gas well. A microprocessor correlates the signal output from a differential pressure transmitter connected to a pair of self-cleaning pressure probes which are positioned in a circulating drilling fluid. By manipulating solenoid valves, the microprocessor controls the intermittent zeroing of the output signal from the differential pressure transmitter and controls a periodic level check to determine if the pressure probes are submerged in the drilling fluid.

REFERENCES:
patent: 2373795 (1945-04-01), Warren, Jr.
patent: 2604778 (1952-07-01), Marquardt
patent: 3460394 (1969-08-01), Cryer
patent: 3780581 (1973-12-01), Acre et al.
patent: 3911741 (1975-10-01), Rochon et al.
patent: 4006635 (1977-02-01), Khol
patent: 4043193 (1977-08-01), Bailey
patent: 4201082 (1980-05-01), Dockhorn et al.
patent: 4393705 (1983-07-01), Eldschun
patent: 4408486 (1983-10-01), Rochon et al.
patent: 4576035 (1986-03-01), Hooven et al.

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