Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1990-02-22
1991-09-03
Fields, Carolyn E.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250256, 250260, 2503562, G01V 508
Patent
active
050456920
ABSTRACT:
A fluid flow and simultaneous fluid density measuring device is set forth. The preferred embodiment incorporates a sonde having a lower inlet port, an upper outlet port, a lengthwise tube extending through the sonde and connected with the ports. A packer provides external isolation to direct all fluid flow into the tube. A float within the tube is buoyantly raised primarily as a function of fluid velocity and fluid density, and the position of the float is measured by placing a radioactive source in the float and measuring the count rate at spaced detectors to ascertain float location. Fluid is simultaneously measured by determining the radiation count rate attenuation of the fluid. With other fixed parameters and measurement of the float position and fluid density, the fluid flow rate can be determined. Both method and apparatus are set forth.
REFERENCES:
patent: 2714168 (1955-07-01), Hencke et al.
patent: 2783646 (1957-03-01), Rumble
patent: 3401260 (1968-09-01), Holm et al.
Beard William J.
Fields Carolyn E.
Halliburton Logging Services Inc.
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