Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Reexamination Certificate
2007-07-17
2007-07-17
Raevis, Robert (Department: 2856)
Measuring and testing
Borehole or drilling
Fluid flow measuring or fluid analysis
C166S264000
Reexamination Certificate
active
10738241
ABSTRACT:
A sample module is provided for use in a downhole tool to obtain fluid from a subsurface formation penetrated by a wellbore. The sample module includes a sample chamber carried by the module for collecting a sample of formation fluid obtained from the formation via the downhole tool, and a validation chamber carried by the module for collecting a substantially smaller sample of formation fluid than the sample chamber. The validation chamber is removable from the sample module at the surface without disturbing the sample chamber. A sample chamber is also provided that includes a substantially cylindrical body capable of safely withstanding heating at the surface, following collection of a formation fluid sample via the downhole tool and withdrawal of the sample chamber from the wellbore, to temperatures necessary to promote recombination of the sample components within the chambers. Additionally, the body is equipped so as to be certified for transportation. At least one floating piston is slidably positioned within the body so as to define a fluid collection cavity and a pressurization cavity, whereby the pressurization cavity may be charged to control the pressure of the sample collected in the collection cavity. A second such piston may be provided to create a third cavity wherein a buffer fluid may be utilized during sample collection. Metal-to-metal seals act as the final shut-off seals for the sample collected in the collection cavity of the body. A method related to the use of the sample module and sample chamber described above is also provided.
REFERENCES:
patent: 4434653 (1984-03-01), Montgomery
patent: 4860581 (1989-08-01), Zimmerman et al.
patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 4940088 (1990-07-01), Goldschild
patent: 4994671 (1991-02-01), Safinya et al.
patent: 5166747 (1992-11-01), Schroeder et al.
patent: 5269180 (1993-12-01), Dave et al.
patent: 5303775 (1994-04-01), Michaels et al.
patent: 5337822 (1994-08-01), Massie et al.
patent: 5377755 (1995-01-01), Michaels et al.
patent: 5609205 (1997-03-01), Massie et al.
patent: 5708220 (1998-01-01), Burge
patent: 5901788 (1999-05-01), Brown et al.
patent: 5934374 (1999-08-01), Hrametz et al.
patent: 5939717 (1999-08-01), Mullins
patent: 5956132 (1999-09-01), Donzier
patent: 2 288 618 (1995-10-01), None
patent: 2288618 (1995-10-01), None
Deruyck, Bruno et al., Fluid PVT Sampling with Wireline Testers in West Africa—Experience and Examples, Offshore West Africa 1996 Conference and Exhibition, Libreville, Gabon, Nov. 5-7, 1996, pp. 1-14.
Baker Hughes/Baker Atlas brochure, “Reservoir Characterization Instrument”, 1997, Western Atlas International.
Halliburton brochure, “Reservoir Description Tool (RDT ™)”, 1999, Halliburton Energy Services.
Bolze Victor M.
Brown Jonathan W.
Kurkjian Andrew L.
Long Timothy L.
Melbourne Angus J.
Echols Brigittc L.
Raevis Robert
Schlumberger Techonolgy Corporation
Sdlazar J. L. Jennie
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