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CN105350938A
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Mechanical packer
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CN105345701A
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Rapid clamping tool for oil pipe
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CN105350936A
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Novel packer
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CN105350937A
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High-seal packer
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CN105332666A
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Hydraulic tubing anchor
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CN105350939A
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Packer seat seal structure
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CN105257225A
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Safety connector
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CN105298430A
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Safety connector for packer
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CN105298418A
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Bridge plug setting tool
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CN105332673A
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Mechanical bridge plug of packer
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CN105275426A
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External casing packer
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CN105201444A
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Open hole packer
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CN105221096A
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Hydraulic bridge permanent plug
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CN105178881A
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Oil tube test joint
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CN105239931A
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Safety joint
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CN105221108A
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Circulation slide sleeve
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CN105221105A
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Combined type bottom valve
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CN105221137A
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Test cover leakage device
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CN105221107A
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Differential opening valve
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CN105257281A
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Method for detecting casing leakage
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