Method and apparatus for directly controlling pressure and...

Details Method and apparatus for directly controlling pressure and... Method and apparatus for directly controlling pressure and...

2005-07-26

2005-07-26

Neuder, William (Department: 3672)

Boring or penetrating the earth

Automatic control

Of fluid pressure below ground

C175S038000, C175S048000

Reexamination Certificate

active

06920942

ABSTRACT:
A hybrid choke control system wherein the traditional choke experience is manifest in auditory and visual feedback mechanisms which are emulated by a digital control system enabling direct control of either position or back pressure associated with an adjustable choke device. The present invention enhances safety and efficiency when used in association with oil field drilling operations and in particular when applied to a device which provides the user with enhanced control capabilities for direction controlling the back pressure and position associated with drilling chokes during down hole operations.

REFERENCES:
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patent: 6484816 (2002-11-01), Koederitz
patent: 2003/0168258 (2003-09-01), Koederitz
patent: 2003/0196804 (2003-10-01), Riet
Koederitz et al., Advanced Choke Control System for Underbalanced Drilling, IADC Underbalanced Drilling Conference & Exhibition, Oct. 27-28, 1999, 5 pages, 17 figures.

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