Band-stop filter for volume analysis of downhole particles
AssigneeHalliburton Energy Services, Inc.
InventorsShaun Patrick Lawrence, Mathew Dennis Rowe
Life of this patent
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Abstract
A system including an image acquisition unit in optical communication with a flow pathway. The system may include at least one illumination source directable toward a shale shaker. The illumination source may emit a light output. A band-stop filter may be affixed to the image acquisition unit to filter out infrared light. The band-stop filter may also allow electromagnetic radiation of the light output to reach the image acquisition unit. An analysis device may be used to determine a volume of downhole particles on the shale shaker using deflections of the light output observed by the image acquisition unit.
Claims20
A system comprising:
- an image acquisition unit in optical communication with a flow pathway;
- at least one illumination source directable toward a shale shaker to emit a light output;
- a band-stop filter positionable at the image acquisition unit to block infrared wavelength electromagnetic radiation of the light output from reaching an aperture of the image acquisition unit, while allowing non-infrared wavelength electromagnetic radiation of the light output to reach the aperture of the image acquisition unit;
- and
- an analysis device positionable to determine a volume of downhole particles on the shale shaker using deflections of the non-infrared wavelength light output observed by the image acquisition unit.
A method comprising:
- receiving a fluid in a flow pathway extending from a wellbore, the fluid containing downhole particles;
- illuminating the downhole particles with at least one illumination source emitting a light output;
- blocking, with a band-stop filter, electromagnetic radiation of an infrared wavelength from an aperture of an image acquisition unit with in optical communication with the flow pathway;
- acquiring an image of the downhole particles using the image acquisition unit;
- and
- determining a volume of downhole particles using deflections of non-infrared wavelengths of the light output observed by the image acquisition unit at a shale shaker.
A non-transitory computer-readable medium comprising program code that is executable by one or more processing devices for causing the one or more processing devices to:
- control at least one illumination source to emit a light output to illuminate downhole particles contained in a fluid in a flow pathway extending from a wellbore, wherein the light output comprises a wavelength that is passed by a band-stop filter that blocks infrared wavelength electromagnetic radiation from an aperture of an image acquisition unit in optical communication with the flow pathway;
- control the image acquisition unit to acquire an image of the downhole particles;
- and
- determine a volume of downhole particles using deflections of non-infrared wavelengths of the light output observed by the image acquisition unit.
Dependencies are inferred from the claim text.