Well screens and methods to reduce screen plugging
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United States of America Patent
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Feb 5, 2019
Grant Date -
Jul 27, 2017
app pub date -
Jan 20, 2017
filing date -
Jan 21, 2016
priority date (Note) -
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Abstract
A subterranean screen assembly comprises a base pipe with end connections to attach to a pipe string and a portion that is perforated or slotted; and a coated screen radially outwardly disposed of the base pipe. The coated screen comprises a screen substrate and a coating disposed on a surface of the screen substrate; the coating comprising an amorphous diamond like carbon doped with about 10 to about 30 atomic percent of silicon, about 10 to about 20 atomic percent of oxygen, or a combination comprising at least one of the foregoing dopants, or a polymer comprising a fluoropolymer, a silicone, or a combination comprising at least one of the foregoing.
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