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Downhole abrading tool having taggants for indicating...

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Reexamination Certificate

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Downhole abrading tool having taggants for indicating...

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Reexamination Certificate

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Method and apparatus for optimizing determination of the origina

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Patent

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Method for measuring formation fluids in drilling fluid

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Patent

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System for lagtime measurement during drilling

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Patent

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Well fluid and test method

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating agent released in drilling fluid
Patent

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