FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil industry, namely, to construction of oil and gas wells in permafrost conditions. Proposed device comprises production string, cooling device, temperature control and monitoring unit. Cooling facility is made in the form of coil pipes, spiral-like casing installed in casing pipe in cement stone of casing string, connected to cooling unit installed at wellhead. Temperature control sensors are arranged in cement stone in the area of cooling coil tubing coils.
EFFECT: improved well integrity and automation of heat insulation process.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| 0 |
|
SU440483A1 | |
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