In situ optical computation fluid analysis system and method
First Claim
1. A method, comprising:
- directing light to interact with a dynamic and moving stream of fluid, including crude petroleum flowing in a stream, as part of first and second measurement procedures, and causing the fluid to produce interacted light from the directed light associated with each of the measurement procedures;
dividing the interacted light associated with each of the measurement procedures into reflected light and transmitted light, the reflected and transmitted light each having an intensity;
producing first and second signals, respectively based on the intensity of the transmitted and reflected light associated with the first measurement procedure, and producing third and fourth signals, respectively based on the intensity of the transmitted and reflected light associated with the second measurement procedure; and
determining at least two different properties of the dynamic and moving stream of fluid based on the first, second, third, and fourth signals, including determining properties of the crude petroleum flowing in the stream in a down hole environment,wherein the causing, dividing, and producing steps are performed in situ at the stream.
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Accused Products
Abstract
A multivariate optical element (MOE) calculation device is used in an apparatus for determining a property of petroleum in real time flowing in a pipe in petroleum field stream pipes or pipe line. Multiple apparatuses are provided for determining the amount of each of a plurality of properties. An internal reflectance element (IRE) can be used to determine the property of the petroleum from a surface of the petroleum flowing in a pipe. A cleaning apparatus can be provided to clean the surface of the IRE in the pipe and a turbulence generator can be provided in the pipe to insure homogeneity of the petroleum being analyzed prior to analysis. A bellows may be provided in the apparatus housing to compensate for pressure differentials between the housing and the flowing petroleum in the pipe. Various embodiments are disclosed.
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Citations
25 Claims
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1. A method, comprising:
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directing light to interact with a dynamic and moving stream of fluid, including crude petroleum flowing in a stream, as part of first and second measurement procedures, and causing the fluid to produce interacted light from the directed light associated with each of the measurement procedures; dividing the interacted light associated with each of the measurement procedures into reflected light and transmitted light, the reflected and transmitted light each having an intensity; producing first and second signals, respectively based on the intensity of the transmitted and reflected light associated with the first measurement procedure, and producing third and fourth signals, respectively based on the intensity of the transmitted and reflected light associated with the second measurement procedure; and determining at least two different properties of the dynamic and moving stream of fluid based on the first, second, third, and fourth signals, including determining properties of the crude petroleum flowing in the stream in a down hole environment, wherein the causing, dividing, and producing steps are performed in situ at the stream. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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at least first and second apparatus coupled to a pipe system located in a down hole environment, each of the apparatus configured to direct light to a flowing fluid including a stream of crude petroleum in the pipe system, as part of a first measurement procedure associated with the first apparatus, and a second measurement procedure associated with the second apparatus, to cause the fluid to produce interacted light; a turbulence generator in the pipe system upstream from the first and second apparatus; one or more detectors located in the down hole environment for detecting reflected light and transmitted light from the interacted light, and configured to generate a first electrical intensity output signal responsive to the reflected light and a second electrical intensity output signal responsive to the transmitted light; and a signal processing arrangement for determining a first property of the flowing fluid from the first and second electrical intensity output signals corresponding to the first measurement procedure, and a second, different property of the flowing fluid from the first and second electrical intensity output signals corresponding to the second measurement procedure. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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directing light to interact with a dynamic and moving stream of fluid, including crude petroleum flowing in a stream, in a subsurface well, and causing the fluid to produce detectable interacted light from the directed light; directing the interacted light to an optical element; detecting at least two of (i) light reflected from the optical element, (ii) light transmitted by the optical element, and (iii) the interacted light directed to the optical element; and determining at least one property of the dynamic and moving stream of fluid using detected information about at least two of the light reflected, the light transmitted, and the interacted light, including determining at least one property of the crude petroleum flowing in the stream located in the subsurface well, wherein the causing, directing, and detecting are performed in situ at the stream. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification