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(19)

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2 526 096

(13)

(51)

IPC

G01V1/42(2006-01-01)

E21B43/16(2006-01-01)

E21B47/14(2006-01-01)

(21) (22)

Application

2012116008/28, 2012-04-20

(24)

Start date

2012-04-20

(22)

Actual filing date

2012-04-20

(45)

Published

2014-08-20

(72)

Inventor

Martynov Evgenij JakovlevichRogov Evgenij NikolaevichMazaev Vladimir Vladimirovich

(73)

Holder

Ehstonija, Aktsionernoe Obshchestvo Lehndresurses

METHOD FOR SEISMOACOUSTIC INVESTIGATIONS DURING OIL EXTRACTION Russian patent published in 2014 - IPC G01V1/42 E21B43/16 E21B47/14

Abstract RU 2526096 C2

FIELD: physics, acoustics.

SUBSTANCE: invention relates to oil and gas industry and can be used on fields with different structural types, including depleted fields and fields with hard to recover reserves. Seismoacoustic investigations during oil extraction include a downhole acoustic radiator generating elastic vibrations in the form of a cylindrical wave horizontally directed into a formation; using seismic detectors mounted on the earth's surface on a profile to detect and measure amplitude-frequency parameters of longitudinal and transverse waves propagating through the formation, said waves being caused by deformation of rocks by elastic vibrations of the downhole acoustic radiator; simultaneously with the seismoacoustic investigations, using the elastic vibrations of the downhole acoustic radiator to create a pressure gradient for displacing oil and extracting oil.

EFFECT: high accuracy of seismoacoustic investigations and higher oil recovery factor.

1 dwg

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RU 2 526 096 C2

Authors

Martynov Evgenij Jakovlevich

Rogov Evgenij Nikolaevich

Mazaev Vladimir Vladimirovich

Dates

2014-08-20—Published

2012-04-20—Filed