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2 429 383

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(51)

IPC

F04D13/10(2006-01-01)

F04D15/00(2006-01-01)

F04D13/12(2006-01-01)

(21) (22)

Application

2009149065/06, 2009-12-30

(24)

Start date

2009-12-30

(22)

Actual filing date

2009-12-30

(45)

Published

2011-09-20

(72)

Inventor

Ivanov Aleksandr AleksandrovichShengur Nikolaj VladimirovichOvodkov Oleg AleksandrovichBatalov Vadim Jur'EvichCheremisinov Evgenij Modestovich

(73)

Holder

Ivanov Aleksandr AleksandrovichShengur Nikolaj VladimirovichCheremisinov Evgenij Modestovich

DOWNHOLE OIL EXTRACTION PLANT WITH OPERATING RANGE Russian patent published in 2011 - IPC F04D13/10 F04D15/00 F04D13/12

Abstract RU 2429383 C1

FIELD: engines and pumps.

SUBSTANCE: proposed plant comprises motor connected to surface control station and multistage radial-flow pump with left boundary of operating zone Q_l limited by increasing arm of delivery-discharge characteristic with decreasing or constant increase rate. In series with said pump connected is, via coupling, additional pump module with at least one stage that has decreasing delivery-discharge characteristic, preferably, linear of delivery range of (Q_l-ΔQ)÷Q_l that satisfies the condition "Н_д"(Q_l-ΔQ)-"Н_д"Q_l)>(d"Н_н"/dQ)| _Q-ΔQ×ΔQ, where "Н_н"(Q) and "Н_д"(Q) are delivery-discharge characteristics of multistage radial-flow pump and additional pump module and ΔQ is preset expansion of operating zone into minor delivery range, respectively.

EFFECT: expanded operating performances.

3 cl, 4 dwg

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RU 2 429 383 C1

Authors

Ivanov Aleksandr Aleksandrovich

Shengur Nikolaj Vladimirovich

Ovodkov Oleg Aleksandrovich

Batalov Vadim Jur'Evich

Cheremisinov Evgenij Modestovich

Dates

2011-09-20—Published

2009-12-30—Filed