Measuring and testing – Borehole or drilling – Downhole test
Patent
1988-11-07
1989-08-29
Levy, Stewart J.
Measuring and testing
Borehole or drilling
Downhole test
166264, E21B 4910
Patent
active
048605808
ABSTRACT:
A formation testing apparatus is shown for testing subsurface earth formations penetrated by a borehole. A tester body has two longitudinally spaced sealing pads which are used to isolate a portion of the well bore from well bore fluids. A pair of sample collectors are carried by the body and communicate thru openings provided in the sealing pads for receiving samples of connate fluids produced from the surrounding formations. A pair of control fluid passages containing a control fluid of known density are pressure communicative with the connate fluid contained in each sample passageway. A pressure sensor is provided for sensing the pressure of the known density fluid in the control fluid passages and for comparing the pressures to determine a fluid pressure-depth gradient from which the nature of the connate fluid in the earth formations adjacent the formation testing device can be predicted.
REFERENCES:
patent: 2313176 (1943-03-01), Shelby
patent: 2781663 (1957-02-01), Maly et al.
patent: 3104712 (1963-09-01), Whitten
patent: 3261402 (1966-07-01), Whitten
patent: 3295615 (1967-01-01), Brieger et al.
patent: 3344860 (1967-10-01), Voetter
patent: 3430181 (1969-02-01), Urbanosky
patent: 3577781 (1971-05-01), Lebourg et al.
patent: 3611799 (1971-10-01), Davis
patent: 3780575 (1973-12-01), Urbanosky
patent: 4210018 (1980-07-01), Brieger
patent: 4553428 (1985-11-01), Upchurch
patent: 4745802 (1988-05-01), Purfurst
James M. Gunter and C. V. Moore, "Improved Use of Wireline Testers for Reservoir Evaluation," Journal of Petroleum Technology, Jun. 1987, p. 635.
Gunter Jr. Charles D.
Levy Stewart J.
O'Shea Kevin D.
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