Measuring and testing – Borehole or drilling – Downhole test
Patent
1980-10-30
1982-10-12
Myracle, Jerry W.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4900
Patent
active
043532497
ABSTRACT:
A method and apparatus for in situ measurement of flow characteristics in boreholes or the like is disclosed for determining various formation characteristics such as permeability, particularly in the range of approximately 100-1,000 microdarcies and lower. One embodiment of the method and apparatus contemplates formation of a test interval in the borehole by a pair of expandable packers, additional guard zones being formed in the borehole at either end of the test interval by two additional guard packers, suitable flow conditions being simultaneously and separately measured within the test interval and each of the guard zones in order to permit determination of multidirectional components of permeability, porosity and other characteristics of the particular formation. Another embodiment contemplates whole hole testing where similar data is developed for a test interval formed between a single packer and the end of the borehole and one guard zone formed by a single additional guard packer. The method and apparatus of this invention are particularly contemplated for obtaining unambiguous measurements of multidirectional flow in low permeability formations.
REFERENCES:
patent: 2429577 (1947-10-01), French, Jr.
patent: 2446588 (1948-08-01), Herzog et al.
patent: 2450265 (1948-09-01), Wolf
patent: 2560510 (1951-07-01), Hinson
patent: 2747401 (1956-04-01), Doll
patent: 3035440 (1962-05-01), Reed
patent: 3439740 (1969-04-01), Conover
patent: 3565172 (1971-02-01), Cole et al.
patent: 3871218 (1975-03-01), Louis
patent: 3876003 (1975-04-01), Kisling
patent: 4196619 (1980-04-01), Collins
Lagus Peter L.
Peterson Edward W.
Myracle Jerry W.
Systems, Science and Software
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