4. Wells
  5. Processes
  6. Freeing stuck object, grappling or fishing in well

David P. Brisco

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Casing filling and circulating apparatus and method

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Cementing head

Pipe joints or couplings – Packed – Flanged pipe
Reexamination Certificate

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Cementing head valve manifold

Fluid handling – With holder for solid – flaky or pulverized material to be...
Reexamination Certificate

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Circulating nipple and method for setting well casing

Wells – Processes – Assembling well part
Reexamination Certificate

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Circulating nipple and method for setting well casing

Wells – Processes – Assembling well part
Reexamination Certificate

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Profile ID: LFUS-PAI-P-94111

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