Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Reexamination Certificate
2003-09-24
2010-10-26
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
C356S436000
Reexamination Certificate
active
07821635
ABSTRACT:
A measuring system for in-situ measurements down a well (1) by a spectrometer (4) is provided. The spectrometer (4) includes a radiation source (5) and a detector (6). A probe (15) optically connected to the spectrometer (4) and includes an optical pathway (7) for transmission of a radiation from the radiation source (5) and at least a second optical pathway for transmission of a characteristic radiation from a sample to the detector (6). A positioner is provided to position the probe (15) near a side surface (11) of the borehole (3) and to optically couple the optical pathways (7) to the side surface (11), wherein the probe (15) is traversable up and down the well (1) by way of a guide operatively connected to the probe (15) and to a fixed location at the wellhead. By use of the apparatus and method a concentration of methane or other substance of interest is obtained, and thereby, a potential production of a coal bed methane formation is obtained.
REFERENCES:
patent: 3947683 (1976-03-01), Schultz et al.
patent: 4066892 (1978-01-01), Givens
patent: 4802761 (1989-02-01), Bowen et al.
patent: 4892383 (1990-01-01), Klainer et al.
patent: 4994671 (1991-02-01), Safinya et al.
patent: 5166747 (1992-11-01), Schroeder et al.
patent: 5167149 (1992-12-01), Mullins et al.
patent: 5225674 (1993-07-01), Frantz et al.
patent: 5293931 (1994-03-01), Nichols et al.
patent: 5331156 (1994-07-01), Hines et al.
patent: 5462116 (1995-10-01), Carroll
patent: 5526110 (1996-06-01), Braymen
patent: 5859430 (1999-01-01), Mullins et al.
patent: 5939717 (1999-08-01), Mullins
patent: 6268911 (2001-07-01), Tubel et al.
patent: 6350986 (2002-02-01), Mullins et al.
patent: 6355928 (2002-03-01), Skinner et al.
patent: 6388251 (2002-05-01), Papanyan
patent: 6507401 (2003-01-01), Turner et al.
A. R. Smits et al., “In-Situ Optical Fluid Analysis as an Aid to Wireline Formation Sampling” SPE Formation Evaluation, Jun. 1995, pp. 91-98.
Herries John
Pope John
Ackerman William G.
Nguyen Sang H.
Toatley , Jr. Gregory J.
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