Wells – Processes – With indicating – testing – measuring or locating
Patent
1995-12-26
1997-11-18
Neuder, William P.
Wells
Processes
With indicating, testing, measuring or locating
166264, E21B 4900
Patent
active
056877919
ABSTRACT:
Apparatus and method for testing a well and obtaining a fluid sample therefrom. The apparatus comprises a housing connectable to a tubing string and having a packer at the lower end thereof. The packer is set, and fluid is flowed from a formation or zone of interest into the chamber and then into a sampler in a controlled manner such that the fluid in the housing or sampler does not flash. In one embodiment, a pump is used to flow formation fluid; plugs are used in the housing to first flow dirty fluid and then flow clean fluid into the housing. In another embodiment, a nitrogen cushion is bled slowly to flow fluid into the housing.
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patent: 5303775 (1994-04-01), Michaels et al.
patent: 5329811 (1994-07-01), Schultz et al.
patent: 5337821 (1994-08-01), Peterson
patent: 5377755 (1995-01-01), Michaels et al.
patent: 5473939 (1995-12-01), Leder et al.
Beck Harold Kent
Schultz Roger Lynn
Halliburton Energy Service,s Inc.
Herman Paul I.
Imwalle William M.
Kennedy Neal R.
Neuder William P.
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