A Well Group Backpressure Metering Device

Abstract

The invention discloses a well group return pressure falling metering device which comprises a return pressure falling metering unit, a data collecting unit, a real-time monitoring unit, a data transmission unit, a system control unit, an auxiliary unit and a control cabinet. The return pressure falling metering unit comprises a heating furnace, a tipping bucket meter, a booster pump, an oil-waterseparator and a dosing device, the real-time monitoring unit comprises a flow sensor, a temperature sensor, a pressure sensor, a liquid level sensor, a current sensor, a voltage sensor and a power sensor, and the system control unit comprises a CPU, a power module, an I / O module and a Bthernet and RS485 / 232 communication interface module. By means of the return pressure falling metering unit, thewell group return pressure falling metering device is beneficial to being used for an oil well with high return pressure needing to be pressurized, so that the equipment has the functions of reducingwell mouth pressure and increasing oil delivery pressure to achieve the purpose of increasing the production of the oil well, and also has the functions of well mouth sealed oil metering, sampling, gas measurement, pressure measurement, natural gas recycling, metering, displaying, direct reading and the like.

Description

technical field [0001] The invention relates to the technical field of oil transportation equipment, in particular to a metering device for reducing back pressure of a well group. Background technique [0002] In the oil production plants of Changqing Oilfield, due to various reasons such as the well group is far away from the booster station and metering station, the oil pipeline is long, and the wax deposition in the oil well is relatively serious, the oil production wells have been in high back pressure (1.5-3MPa) production state for a long time , has seriously affected the normal production of the oil well. When the weather is cold in winter, the back pressure can reach 6-7MPa. Under such conditions, the oil well can hardly produce normally. [0003] The external transportation process of the well group is generally a double-pipeline process, that is, one metering pipeline and one mixed transportation pipeline. During oil transportation in winter, the two pipelines must...

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Problems solved by technology

[0002] In the oil production plants of Changqing Oilfield, due to various reasons such as the well group is far away from the booster station and metering station, the oil pipeline is long, and the wax deposition in the oil well is relatively serious, the oil production wells have been in high back pressure (1.5-3MPa) production state for a long time , seriously affected the normal production of the oil well, and the back pressure can reach 6-7MPa in winter when the weather is cold, and the oil well can hardly produce normally under such conditions

[0003] The external transportation process of the well group is generally a double-pipeline process, that is, one metering pipeline and one mixed transportation pipeline. During oil transportation in winter, the two pipelines must ensure uninterrupted oil transportation, as long as one pipeline stops oil transportation for one hour , it will cause pipeline blockage, waste effective resources, increase production costs, and increase labor intensity of workers

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