FIELD: oil industry.
SUBSTANCE: unit for simultaneous separate production and injection in conditions complicated by high viscosity of the product of the upper formation consists of a sucker-rod pump, a production tubing string, an injection pipe string and a packer located between the upper and lower productive formations. Sucker-rod pump is actuated by a surface drive through the sucker rod string and is interconnected with the above-packer space of the well. Injection string is connected to the well below-packer space. At sucker rod pump intake there is coupling assembly. Coupling assembly and the injection pipe string are coupled by an upper two-channel coupling in series connected to an additional packer with self-sealing collars and a lower two-channel coupling in which a branch pipe and a shank end are coupled. In the cavity of the additional packer there is an internal pipe interconnected with the coupling assembly and the branch pipe, through which the liquid is extracted, and the liquid is pumped through the shank along the cavity of the additional packer.
EFFECT: increasing the efficiency and reliability of the installation for simultaneous separate production and injection in conditions complicated by the high viscosity of the upper formation products.
1 cl, 2 dwg
Title | Year | Author | Number |
---|---|---|---|
DEVICE FOR LIQUID INJECTION IN ONE WELL RESERVOIR AND OIL PRODUCTION FROM ANOTHER ONE | 2006 |
|
RU2323329C1 |
METHOD FOR SIMULTANEOUS SEPARATE PRODUCTION OF OIL FROM TWO FORMATIONS OF ONE WELL BY PRODUCTION STRING | 2020 |
|
RU2738615C1 |
INSTALLATION FOR SIMULTANEOUS SEPARATE EXTRACTION AND INJECTION | 2019 |
|
RU2724712C1 |
DOWNHOLE PUMPING UNIT FOR PIPELESS WELL OPERATION | 2022 |
|
RU2798647C1 |
DOWHNOLE PUMP UNIT FOR SIMULTANEOUS AND SEPARATE OPERATION OF TWO FORMATIONS | 2012 |
|
RU2488689C1 |
WELL PUMPING UNIT FOR SIMULTANEOUS SEPARATE DEVELOPMENT OF TWO RESERVOIRS IN WELL | 2010 |
|
RU2427705C1 |
UNIT FOR DUAL BED OPERATION IN WELL | 2012 |
|
RU2517304C2 |
DEVICE FOR DUAL INJECTION OPERATION TO TWO FORMATIONS OF SAME WELL (VERSIONS) | 2013 |
|
RU2517294C1 |
DEEP-WELL PUMPING UNIT FOR LIFTING PRODUCTS IN PRODUCTION STRING | 2016 |
|
RU2621583C1 |
DEVICE FOR DUAL PRODUCTION OF WELLBORE FLUID AND LIQUID INJECTION | 2013 |
|
RU2522837C1 |
Authors
Dates
2024-05-15—Published
2023-12-19—Filed