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2 541 671

(13)

(51)

IPC

E21B47/10(2012-01-01)

(21) (22)

Application

2013155776/03, 2013-12-16

(24)

Start date

2013-12-16

(22)

Actual filing date

2013-12-16

(45)

Published

2015-02-20

(72)

Inventor

Ipatov Andrej IvanovichKremenetskij Mikhail IzrailevichKaeshkov Il'Ja Sergeevich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Tekhnicheskij Tsentr" Ntts")

METHOD FOR DETERMINATION OF FLOWING INTERVALS IN HORIZONTAL WELLS Russian patent published in 2015 - IPC E21B47/10

Abstract RU 2541671 C1

FIELD: oil and gas industry.

SUBSTANCE: method lies in simultaneous measurement of temperature and pressure at several depths. At that measurements are performed directly upon start-up of the well till stabilisation of temperature occurs in the well borehole within the period of time t defined as per the following formula $t < \frac{V}{Q} = \frac{π R^{2} L}{Q},$ day, where V is volume of the borehole horizontal section within the range of pay thickness, m³; L is length of the borehole horizontal section within the range of pay thickness, m; R radius of the borehole, m; Q is well flow rate, m³/day.

EFFECT: improved accuracy in determination of flowing intervals in horizontal wells.

1 dwg

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RU 2 541 671 C1

Authors

Ipatov Andrej Ivanovich

Kremenetskij Mikhail Izrailevich

Kaeshkov Il'Ja Sergeevich

Dates

2015-02-20—Published

2013-12-16—Filed