Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Patent
1994-08-15
1996-09-17
Neuder, William P.
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Indicating, testing or measuring a condition of the formation
175233, 16625007, E21B 4900
Patent
active
055559450
ABSTRACT:
Early evaluation testing of a subsurface formation is provided by monitoring pressure fall-off in the formation. This is accomplished by providing a column of fluid in the well having an overbalanced, hydrostatic pressure at the subsurface formation greater than a natural formation pressure of the subsurface formation. A testing string is run into the well, and the testing string includes a packer, a pressure monitor and a closure tool arranged to close a bore of the testing string. The formation is shut in by setting the packer and closing the bore of the testing string with the closure tool and thereby initially trapping the overbalanced hydrostatic pressure of the column of fluid in the well below the packer. Then the pressure in the well below the packer is monitored as it falls off toward the natural formation pressure. This data can be extrapolated to estimate the natural formation pressure based upon a relatively short actual test interval on the order of ten to fifteen minutes.
REFERENCES:
patent: 1899497 (1933-02-01), Doherty
patent: 2125159 (1938-07-01), Hanes
patent: 2222829 (1940-11-01), Humason et al.
patent: 2280785 (1942-04-01), Boynton
patent: 2392683 (1946-01-01), McWhorter
patent: 2497185 (1950-02-01), Reistle, Jr.
patent: 2677790 (1954-05-01), Arps
patent: 2702474 (1955-02-01), Johnston
patent: 2751016 (1956-06-01), Watzlavick
patent: 2819038 (1958-01-01), Eckel
patent: 2978046 (1961-04-01), True
patent: 3103811 (1963-09-01), Ayres et al.
patent: 3107729 (1963-10-01), Barry et al.
patent: 3111169 (1963-11-01), Hyde
patent: 3175392 (1965-03-01), Tharalson et al.
patent: 3182725 (1965-05-01), Moore
patent: 3279249 (1966-10-01), Tocanne
patent: 3327781 (1967-06-01), Nutter
patent: 3353612 (1967-11-01), Bannister
patent: 3412607 (1968-11-01), Jensen
patent: 3441095 (1969-04-01), Youmans
patent: 3448611 (1969-06-01), Lebourg
patent: 3459264 (1969-08-01), Olson et al.
patent: 3500911 (1970-03-01), Farley et al.
patent: 3577781 (1971-05-01), Lebourg et al.
patent: 3577783 (1971-05-01), Whitten et al.
patent: 3611799 (1971-10-01), Davis
patent: 3780575 (1973-12-01), Urbanosky
patent: 3850240 (1974-11-01), Conover
patent: 3864970 (1975-02-01), Bell
patent: 3876003 (1975-04-01), Kisling, III
patent: 3895520 (1975-07-01), Fertl
patent: 3969937 (1976-07-01), Barrington et al.
patent: 4031957 (1977-06-01), Sanford
patent: 4043407 (1977-08-01), Wilkins
patent: 4142594 (1976-03-01), Thompson et al.
patent: 4230180 (1980-10-01), Patton et al.
patent: 4246964 (1981-01-01), Brandell
patent: 4287946 (1981-09-01), Brieger
patent: 4313495 (1982-02-01), Brandell
patent: 4317490 (1982-03-01), Milberger et al.
patent: 4339948 (1982-07-01), Hallmark
patent: 4370886 (1983-02-01), Smith, Jr. et al.
patent: 4392376 (1983-07-01), Lagus et al.
patent: 4535843 (1985-08-01), Jageler
patent: 4566535 (1986-01-01), Sanford
patent: 4573532 (1986-03-01), Blake
patent: 4580632 (1986-04-01), Reardon
patent: 4583595 (1986-04-01), Czernichow et al.
patent: 4635717 (1987-01-01), Jageler
patent: 4729430 (1988-03-01), White
patent: 4745802 (1988-05-01), Purfurst
patent: 4838349 (1989-06-01), Berzin
patent: 4860580 (1989-08-01), DuRocher
patent: 4866607 (1989-09-01), Anderson et al.
patent: 4898236 (1990-02-01), Sask
patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 4955438 (1990-09-01), Juergens et al.
patent: 4962815 (1990-10-01), Schultz et al.
patent: 5058674 (1991-10-01), Schultz et al.
patent: 5095745 (1992-03-01), Desbrandes
patent: 5105881 (1992-04-01), Thoms et al.
patent: 5184508 (1993-02-01), Desbrandes
Beck H. Kent
Hinkie Ronald L.
Ringgenberg Paul D.
Schultz Roger L.
Dougherty, Jr. C. Clark
Halliburton Company
Imwalle William M.
Neuder William P.
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