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

Colin Longfield

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Apparatus and method for acquiring information while drilling

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Apparatus and method for aquiring information while drilling

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Apparatus and method for obtaining downhole samples

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Reexamination Certificate

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Apparatus and method for propelling a data sensing apparatus...

Ordnance – Well perforators
Reexamination Certificate

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Apparatus and method for sensing downhole parameters

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2353924

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