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(19)

(11)

2 726 090

(13)

(51)

IPC

E21B43/24(2006-01-01)

E21B36/04(2006-01-01)

E21B7/04(2006-01-01)

C09K8/592(2006-01-01)

(21) (22)

Application

2019145234, 2019-12-25

(24)

Start date

2019-12-25

(22)

Actual filing date

2019-12-25

(45)

Published

2020-07-09

(72)

Inventor

Nvizug-Bi Leji KlyuvertMojsa Yurij NikolaevichSavenok Olga VadimovnaUsatikov Sergej Vasilevich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Tekhnologicheskij Universitet" Vo

DEVELOPMENT AND EXTRACTION METHOD OF BITUMEN OIL DEPOSIT Russian patent published in 2020 - IPC E21B43/24 E21B36/04 E21B7/04 C09K8/592

Abstract RU 2726090 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil-producing industry. In method of development of bituminous oil deposits, formation is heated by electric conductor with current intensity of 9 A and specific electric resistance 1.35⋅10^-6 Ohm⋅m by lowering it into bottomhole of horizontal well. Then pumped under pressure 3.0–6.0 MPa calculated amount of the working fluid of 0.022 m³/s, comprising, in wt.%: 0.01–0.3 guar gum; starch 0.01–0.5; nonionic surfactant AF_9-12 0.1–0.6; polymer-lignitic reagent "LIG-VIS" 0.3–1.5; water – balance. Performing subsequent exposure for 3–4 days at constant heating to 40–60 °C. Then the well is switched to the mode of extraction and extraction of oil mixture with working fluid from the formation.

EFFECT: increasing oil recovery due to reduction of viscosity of bituminous oil and reduction of limiting pressure gradient.

1 cl, 1 tbl, 4 ex

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RU 2 726 090 C1

Authors

Nvizug-Bi Leji Klyuvert

Mojsa Yurij Nikolaevich

Savenok Olga Vadimovna

Usatikov Sergej Vasilevich

Dates

2020-07-09—Published

2019-12-25—Filed