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When being used with water injector during water injection, the K344-Packer uses the difference between the oil pressure and the casing pressure to make liquid enter the inner rubber barrel and central tube. When rubber barrel expands, the layer water injection could be achieved. Rubber barrel would react when closing well. Our rubber barrel adopts mold pressing high-strength rubber barrel which could avoid damage even if it expands and shrinks more than 30 times.
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