METHOD FOR REMOTELY CONTROLLING LEVEL OF LIQUID IN A WELL WITH PUMP PLANT Russian patent published in 2007 - IPC E21B47/04 

Abstract RU 2295034 C1

FIELD: technology for controlling technological parameters of product wells, possible use for remotely controlling dynamic level of liquid in wells equipped with pump plants.

SUBSTANCE: in accordance to suggested method, acoustic probing signal is generated in turns by changing plant operation mode, while measured on well mouth are pressure falls in annulus space, which are then transformed to symmetric counter-phase signals, which are filtered of interferences, amplified with suppression of cophased components and electromagnetic background inductions and amplified signals are transformed to code series, which is transferred via communication channel to dispatching station, decoded and recorded in form of echograms of changes of plant mode. Recording of echograms is performed until producing a series of reflected signals with equal time intervals between them and similar starting phases. Change of plant mode is performed during period of time, duration of which is selected based on condition of fading of reflected signals down to level of acoustic noises of well, and when given time period expires, previous mode is restored, produced echograms are compared to each other and level of liquid is determined.

EFFECT: increased technological efficiency of control procedure, decreased laboriousness of same.

5 cl, 2 dwg

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RU 2 295 034 C1

Authors

Fedotov Vasilij Ivanovich

Leonov Vasilij Aleksandrovich

Sokolov Aleksej Nikolaevich

Dates

2007-03-10Published

2005-10-03Filed