Retrievable Wash Sliding Sleeve
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It is mainly used for washing of oil wellwater well.
1. Application
It is mainly used for washing of oil well and water well.
2. Work principle
It’s a downhole tool of washing well. Lower it to the designed position, when using, put cone valve in from the oil pipe to make it coordinates with the top cone surface of piston to seal oil tube channel. The water wagon on the ground injects the liquid from the oil pipe to make the piston compress the spring and go down to show the washing channel. Connect oil pipe with annulus to wash the well. Pull out the cone valve after washing finished, the piston returns by the elastic force to seal the channel. The overflow channel connects again and the washing finishes.
3. Structure
It is composed of lower joint, spring, O ring, cylinder and piston.
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1. Type of Packer
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2. Casing size and weight & hole size
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3. Temperature & hole depth
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4. Connection size and type