4. Wells
  5. Processes
  6. Placing or shifting well part

Yusheng Yuan

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Chip resistant buttons for downhole tools having slip elements

Wells – Packers or plugs – With expanding anchor
Patent

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Composite landing collar for cementing operation

Wells – Pistons – fluid driven into well – With stop
Reexamination Certificate

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Downhole screen and method of manufacture

Wells – Screens – Spiral
Reexamination Certificate

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Downhole tool apparatus and method of limiting packer element ex

Wells – Processes – Placing or shifting well part
Patent

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Extrusion resistant inflatable tool

Wells – Packers or plugs – Deformable portion engages conduit restriction
Reexamination Certificate

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Profile ID: LFUS-PAI-P-360350

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