FIELD: gas and oil production.
SUBSTANCE: hole is drilled with opening pay and underlying isolated water-bearing reservoir. Further, a production string with immersed pump unit are lowered into well. Gas-liquid mixture is withdrawn at a border of gas-water contact of the pay. Simultaneously, gas-liquid mixture is separated in well. Also, gas is recovered through annular space, while liquid with dissolved gas is recovered through the production string and is pumped into the underlying water bearing reservoir by means of the above said immersed pump unit.
EFFECT: development of gas-hydrate deposits facilitating increased recovery of gas and increased period for hydrates-free operation of wells due to reduced water saturation in zone below sub-face of gas-hydrate reservoir and reduced probability of hydrates self-conservation.
1 ex, 1 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GAS HYDRATE DEPOSITS DEVELOPMENT METHOD | 2015 |
|
RU2602621C1 |
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| NATURAL GAS EXTRACTION METHOD FROM GAS HYDRATE DEPOSIT | 2017 |
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RU2693983C2 |
| METHOD FOR LIMITING WATER INFLUX IN PRODUCTION WELL | 2011 |
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RU2477789C1 |
| METHOD OF MONITORING THE DEVELOPMENT OF FUEL GAS FIELD | 0 |
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SU1105618A1 |
| METHOD OF EXTRACTING GAS FROM WATER-FLOODED GAS BED | 2020 |
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RU2729552C1 |
