APPARATUS AND METHODS FOR OIL-WATER-GAS ANALYSIS USING TERAHERTZ RADIATION
First Claim
1. A sample analyzer for analyzing a sample comprising:
- a sample chamber having a fluid communication port configured to receive the sample;
a filter in fluid communication with the fluid communication port, the sample received by the sample chamber being filtered by the filter; and
a terahertz radiation detector in electromagnetic communication with the sample and providing a detected output signal indicative of electromagnetic radiation from the sample detected within the spectral region from about 0.01 terahertz to about 100 terahertz.
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Abstract
Methods and apparatus for analyzing gas-oil-water compounds in oilfield and other applications are disclosed using terahertz radiation. A sample analyzer includes a sample chamber having a fluid communication port configured to receive the sample. The analyzer also includes a filter to filter samples and selectively remove oil, water or gas from reservoir mixture received by the sample chamber. A terahertz (THz) radiation detector is provided in electromagnetic communication with the sample. The terahertz detector provides a detected output signal indicative of the terahertz electromagnetic radiation detected from the sample. In some embodiments, the device also includes a terahertz source illuminating the sample, the terahertz detector detecting a portion of the terahertz source illumination as modified by the sample. The detected portion of the spectrum of terahertz radiation can be processed to analyze the composition of the sample.
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Citations
29 Claims
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1. A sample analyzer for analyzing a sample comprising:
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a sample chamber having a fluid communication port configured to receive the sample; a filter in fluid communication with the fluid communication port, the sample received by the sample chamber being filtered by the filter; and a terahertz radiation detector in electromagnetic communication with the sample and providing a detected output signal indicative of electromagnetic radiation from the sample detected within the spectral region from about 0.01 terahertz to about 100 terahertz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A borehole apparatus for analyzing a composition of a fluid sample obtained from a formation, the fluid sample comprising at least one of water, oil, and gas, the apparatus comprising:
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at least one sample chamber for containing the fluid sample within the borehole, the at least one sample chamber including a first window portion that is substantially transparent to terahertz radiation; and a terahertz detector in electromagnetic communication with the fluid sample, the terahertz detector generating an output signal responsive to at least a portion of the spectrum of terahertz radiation from the fluid sample between about 0.01 terahertz and about 100 terahertz. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for analyzing the composition of a fluid sample obtained from a formation, the fluid comprising at least one of water, oil, and gas, the method comprising:
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obtaining the fluid sample within a borehole; directing the fluid sample into at least one sample chamber; and detecting from the fluid sample within the at least one sample chamber at least a portion of a spectrum of terahertz radiation between about 0.01 terahertz and about 100 terahertz; and processing the detected portion of the spectrum of terahertz radiation to analyze the composition of the fluid sample. - View Dependent Claims (26, 27, 28, 29)
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Specification