Methods and systems for maintaining optical transparency during particle image acquisition
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United States of America Patent
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Jan 2, 2018
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app pub date -
Mar 13, 2015
filing date -
Mar 13, 2015
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Abstract
Fouling of or damage to an electromagnetic radiation-transparent window can preclude one from obtaining satisfactory images with an image acquisition unit, such as a camera. Certain types of environments may be particularly prone toward promoting fouling or damage, and manual cleaning or repair of an electromagnetic radiation-transparent window may be difficult in some circumstances. These issues may be particularly prevalent when imaging drill cuttings and other solids obtained from a wellbore due to the complex sampling environment in which these solids are often disposed. Wellhead imaging systems can comprise: a flow pathway extending from a wellbore; an electromagnetic radiation-transparent window external to the wellbore establishing optical communication with the flow pathway; an image acquisition unit in optical communication with the flow pathway via the electromagnetic radiation-transparent window; and a movable barrier that is also electromagnetic radiation-transparent and is disposed between the electromagnetic radiation-transparent window and the flow pathway.
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