Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow
Reexamination Certificate
2006-06-20
2006-06-20
Bates, Zakiya W. (Department: 3676)
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Measuring or indicating drilling fluid rate of flow
Reexamination Certificate
active
07063174
ABSTRACT:
A formation pressure testing while drilling device on a bottomhole assembly makes measurements of fluid pressure during drilling of a borehole. Based on the pressure measurements, drilling direction can be altered to maintain the wellbore in a desired relation to a fluid contact. Acoustic transmitters and/or receivers on the bottomhole assembly can provide additional information about bed boundaries, faults and gas-water contacts.
REFERENCES:
patent: RE35386 (1996-12-01), Wu et al.
patent: 6308136 (2001-10-01), Tabarovsky et al.
patent: 6427530 (2002-08-01), Krueger et al.
patent: 6464021 (2002-10-01), Edwards
Aronstam Peter
Berger Per-Erik
Chemali Roland E.
Helgesen Tron B.
Krueger Volker
Baker Hughes Incorporated
Bates Zakiya W.
Madan Mossman & Sriram P.C.
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