Remote monitoring water injection-polymer injection device

Abstract

The invention provides a remote monitoring water injection-polymer injection device and belongs to the technical field of water injection-polymer injection devices. The remote monitoring water injection-polymer injection device comprises a filter assembly, a parameter setting execution mechanism assembly, a remote monitoring data receiver, an automatic control master valve, a pressure display instrument, a sampling valve assembly, a flow setting control valve and an electromagnetic instant and accumulating flow display instrument assembly. The remote monitoring water injection-polymer injection device can realize remote control, guarantees the normal operation of oil field production when water injection wells have a wide distribution area and on-site duty and maintenance are not inconvenient, and can perform proper water injection on the water injection wells when water injection is needed. For learning the on-site water injection condition in real time, data need to be transmitted to a monitoring center in a plant, and functions of setting, controlling, real-time self-inspection, fault alarming, sub-well monitoring and the like on the water injection quantity can be performed on one single well. The remote monitoring water injection-polymer injection device realizes remote control, and monitoring on accurate water injection, quantitative water injection, stable water injection and other equipment of the oil field and realizes water injection under the unattended condition, so the labor intensity is reduced, and production safety risk and production cost are reduced.

Description

technical field [0001] The invention relates to a remote monitoring water injection and polymer injection device, which belongs to the technical field of water injection and polymer injection devices. Background technique [0002] At present, domestic large-scale oil and gas fields are also entering or have entered the period of secondary oil recovery and tertiary oil recovery. Water injection, surfactant injection, polymer thickened water injection, alkali injection and polymer flooding are necessary measures to increase oil reservoir pressure and enhance oil recovery (EOR). When injecting water or polymer, if the pressure or flow rate is insufficient, the injection effect will be affected and the oil production will be reduced, but if it is too large, there will be "single-layer fingering" and plane imbalance of the injected fluid. ” or “water stringing” is serious, which will affect the effect of water flooding and polymer flooding, thereby affecting the recovery factor....

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Problems solved by technology

[0006] The other is that the urban water supply control system is transformed into well injection control products, which have poor adaptability to oilfield well pressure due to inadaptability in technical principles

[0007] According to the development needs of oilfield water injection and polymer injection technology, the problems existing in the products currently used in the oilfield are investigated, namely complex structure, large volume, high manufacturing cost, inconvenient adjustment and operation, poor sealing, high failure rate, easy corrosion, short life, water injection, The error of polymer injection is large, the oil production efficiency is low, and the cost is high. Inspection personnel are required to go to the site to inspect the operation of the device, and the production operation cannot be grasped in time.

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