Method for improving drilling depth measurements

Details Method for improving drilling depth measurements Method for improving drilling depth measurements

2006-05-16

2006-05-16

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating, testing or measuring a condition of the formation

Reexamination Certificate

active

07044238

ABSTRACT:
A method for selecting drilling operating parameters includes characterizing at least one drilling response parameter with respect to lithology. The characterization is performed when a parameter related to drill string dissipative motion parameter below a selected threshold. The at least one drilling response parameter is measured during drilling. Lithology is determined from the measured drilling response parameter. At least one drilling operating parameter is selected to optimize at least one drilling response parameter when a parameter related to drill string dissipative motion falls below a selected threshold for the determined lithology.

REFERENCES:
patent: 5113379 (1992-05-01), Scherbatskoy

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