Apparatus and method for determining fluid properties

Details Apparatus and method for determining fluid properties Apparatus and method for determining fluid properties

2011-02-15

2011-02-15

Neuder, William P (Department: 3672)

Wells

Processes

Sampling well fluid

C166S066000, C356S326000

Reexamination Certificate

active

07886821

ABSTRACT:
A downhole fluid sample container includes a fluid sample container detachably coupled to a downhole sub, the fluid sample container having an internal chamber for receiving the downhole fluid. At least one semimetal (for example, silicon or germanium) window is coupled to the fluid sample container, the window being substantially transparent to electromagnetic energy wavelengths within a selected band. A method includes transmitting electromagnetic energy from an electromagnetic energy source to downhole fluid through at least one semimetal window in a container, receiving an electromagnetic energy response with a spectrometer, and estimating the downhole fluid property based at least in part on the electromagnetic energy response.

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International Search Report and Written Opinion, Mailed Sep. 23, 2009, International Application No. PCT/US2009/031499, International Search Report 4 pages, Written Opinion 7 pages.

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