Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Patent
1999-07-28
2000-12-26
Williams, Hezron
Measuring and testing
Borehole or drilling
Fluid flow measuring or fluid analysis
7386431, E21B 4900, G01N 100
Patent
active
061641278
ABSTRACT:
An apparatus for and a process of evaluating well bore flow of water and for sampling of water within a well. A hose is inserted into the well to a known depth. To evaluate the water, a tracer fluid is introduced into the hose until the pressure within the hose exceeds the hydrostatic pressure at the known depth by a preset amount. The tracer fluid is then rapidly released into the well. The tracer fluid is detected in water pumped from the well, and the elapsed time between release of the tracer fluid into the well and detection of the tracer fluid in the water pumped from the well is determined. The process is repeated at a second known depth, and the tracer fluid travel time between the two depths is determined. From this and the cross-sectional area of the well, the incremental volumetric well bore inflow to the well between the two depths is calculated. The process can be repeated at several depths within the well to permit construction of a velocity profile of water movement within the well. To obtain a water sample from the well, the hose is inserted to the desired depth, and an inert gas is introduced into the hose. The gas is then vented from the hose, and water from the well enters the hose to replace the vented gas. The hose is then withdrawn from the well, and gas is again introduced into the hose, causing the water sample to be discharged. Appropriate valves are provided to control the apparatus.
REFERENCES:
patent: 2453456 (1948-11-01), Piety
patent: 3123708 (1964-03-01), Limanek
patent: 3345868 (1967-10-01), Brink
patent: 3824850 (1974-07-01), Nutter
patent: 4367657 (1983-01-01), Ward
patent: 4553429 (1985-11-01), Evans et al.
patent: 4629218 (1986-12-01), Dubois
patent: 4715443 (1987-12-01), Gidley
patent: 4745801 (1988-05-01), Luzier
patent: 4811599 (1989-03-01), Johnson et al.
patent: 4928541 (1990-05-01), Toon et al.
patent: 5228345 (1993-07-01), Vales
patent: 5297425 (1994-03-01), Hamby et al.
patent: 5337838 (1994-08-01), Sorensen
patent: 5347844 (1994-09-01), Grob et al.
patent: 5388455 (1995-02-01), Hamby et al.
patent: 5520046 (1996-05-01), Sornein et al.
patent: 5901788 (1999-05-01), Brown et al.
Christensen Allen H.
Crawford Steven M.
Hanson Randall T.
Izbicki John
Martin Peter
Koltos E. Philip
Politzer Jay L.
The United States of America as represented by the Secretary of
Williams Hezron
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