PROCEDURE FOR CONTROL OF PARAFFINE DEPOSITS IN OIL-GAS WELLS Russian patent published in 2011 - IPC E21B37/00 

Abstract RU 2438006 C1

FIELD: gas and oil production.

SUBSTANCE: procedure consists in lowering heating device for recovered fluid into production string. The device corresponds to a process string with a back valve on an end lowered at depth below beginning of paraffin deposits. Heat carrier is pumped into the string during operation of the well by introducing heat carrier into a flow of recovered fluid till at wellhead it reaches temperature as high, as temperature of paraffin melting. Heat carrier is pumped cyclically or continuously. At cyclic heat carrier pumping beginning of each cycle is determined by rise of pressure at intake of a pump and reduction of well yield in comparison with set values of pressure and yield at operation of well under a process mode.

EFFECT: raised efficiency, simplified process of procedure.

5 cl, 1 dwg

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RU 2 438 006 C1

Authors

Konoplev Jurij Petrovich

Muljak Vladimir Vital'Evich

Chertenkov Mikhail Vasil'Evich

Sidorov Dmitrij Anatol'Evich

Kol'Tsov Evgenij Valer'Evich

Chikishev Gennadij Fedorovich

Astaf'Ev Dmitrij Anatol'Evich

Khvastov Viktor Viktorovich

Guljaev Vladimir Ehngel'Sovich

Kuchumova Valentina Vasil'Evna

Dates

2011-12-27Published

2010-04-09Filed