Steam injection pipeline and steam injection process for accurately controlling injection-production ratio of oil field

Abstract

The invention discloses a steam injection pipeline and a steam injection process for accurately controlling the injection-production ratio of an oil field, and relates to the technical field of oil field steam injection and oil production. The steam injection pipeline comprises a movable boiler and a steam injection pipeline body, the movable boiler is communicated with an oil extraction wellhead through the steam injection pipeline body, a single-well steam metering device is arranged at the end, close to the oil extraction wellhead, of the steam injection pipeline body, and a total steam metering device is arranged at the end, close to the movable boiler, of the steam injection pipeline body. A signal tower is arranged on one side of the movable boiler and is in signal connection with the management base, and a server, a monitoring displayer and other office facilities are arranged in the management base. According to the steam injection process based on the steam injection pipeline, the difference degree of each steam injection well condition is reduced, and the management difficulty is reduced.

Description

Technical field [0001] The present invention relates to the field of oilfield injection oil production, in particular, to an oil field annotation ratio precision control, an injection, and steaming process. Background technique [0002] Oilfield often uses steaming throughput or steam drive process to assist in oil, in which a fixed boiler is used, and the steaming line is connected to the surrounding wellhead. There is the following questions: [0003] First, each batch of steaming, the number of wells is large, each well is connected to the pipeline length of the boiler difference, the heat loss caused by heat dissipation is large; two, each well oil-like penetration is more different. When the steam is caused, the portion of the well oil layer is overvolved. Some well-suction is insufficient. When removing after subsequent oil, it is necessary to have a difference in the well time, the oil, and water content, etc. Not easy to manage; three, due to the spread of infusion, each ...

AI Technical Summary

Problems solved by technology

As a result, the subsequent oil production requires greater differences in brine time, pumping timing, and water cut.

Difficult to manage; 3. Due to the general steam injection during steam injection, precise steam injection cannot be done in each well, resulting in greater differences in well conditions in the later stage and more difficult management; 4. If a steam flowmeter is installed in each well , too much cost

Even if it is installed, it will be difficult to control because the actual temperature and steam flow of each well are different, and it is impossible to form a follow-up guidance process

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