METHOD AND DEVICE FOR AIR PRESSURE CONTROL IN COUPLING OF INSTALLATION FOR SUBSURFACE WELL REPAIR Russian patent published in 2009 - IPC E21B44/00

Abstract RU 2344284 C2

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil and gas industry, in particular, to control of subsurface well repair installations. Device comprises pressure gage for measurement of air pressure imposed on coupling, logical circuit for control of measured air pressure and comparison of measured air pressure with specified range of pressures. In the method realisation operator is notified by sound or light alarm, when measured pressure is within the specified range.

EFFECT: reduction of expenses for installation repair, equipment wear extent.

28 cl, 5 dwg

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RU 2 344 284 C2

Authors

N'Juman Frederik M.

Nortkatt Kevin

Dates

2009-01-20—Published

2004-02-13—Filed