Down hole drilling fluid heating apparatus and method

Details Down hole drilling fluid heating apparatus and method Down hole drilling fluid heating apparatus and method

2004-12-08

2008-12-23

Wright, Giovanna C (Department: 3672)

Wells

With heating, refrigerating or heat insulating means

C166S302000, C166S319000, C166S373000

Reexamination Certificate

active

07467658

ABSTRACT:
An apparatus for providing heat energy to a fluid, including a housing adapted for connection into a working string and for inserting into a borehole, a flow path for the fluid extending within the housing, a pressure drop device positioned within the flow path, and an actuator for actuating the apparatus between a minimum pressure drop position and a maximum pressure drop position. A method for providing heat energy to a fluid, including the steps of providing an apparatus in a borehole, actuating the apparatus to a maximum pressure drop position, and circulating the fluid through a pressure drop device which is positioned within a flow path in the apparatus.

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Sperry-Sun Drilling Services “Adjustable Gauge Stabilizer (AGS-TM) Operations Manual,” 17 pp.

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