4. Wells
  5. Packers or plugs
  6. With expanding anchor

Chudleigh B. Cochran

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Apparatus and method for cementing well liners

Wells – Processes – Cementing – plugging or consolidating
Patent

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Check valve assembly

Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent

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Continuous flow perforation washing tool and method

Wells – Processes – Cleaning or unloading well
Patent

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Double nut setting tool and linger hanger assembly

Wells – Processes – Placing or shifting well part
Patent

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Landing collar and float valve assembly

Wells – Packers or plugs – With expanding anchor
Patent

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Profile ID: LFUS-PAI-P-211456

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