Automatic cleaning control system and method of modified fiber ball filter for oil field

Abstract

The invention discloses an automatic cleaning control system of a modified fiber ball filter for an oilfield. The automatic cleaning control system is characterized by comprising a concentration detection module, a pressure induction module, a pressure detection module, an alarm module, a lifting device driver module, a stirrer driver module, a flow detection module, a PLC and a fine adjustment module. The automatic cleaning control system disclosed by the invention has the advantages that a self-cleaning function can be achieved, manual operation is not required, the implementation is convenient, and the cleaning effect is remarkable; the service condition of filtering filler can be detected, and warning can be issued in time when the filtering filler cannot exert the action of the filtering filler, so that some unnecessary loss and trouble are avoided; resources can be saved, and a cleaning device and a filter are integrally designed, so that an independent cleaning device is avoided, the stability of work is good, and the practicability is high.

Description

technical field [0001] The invention relates to the field of control systems, in particular to an automatic cleaning control system and method for modified fiber ball filters used in oil fields. Background technique [0002] At present, domestic oil field filters mainly include quartz sand filters, walnut shell filters, fiber ball filters and a small amount of fiber bundle filters. Among them, the quartz sand filter is a filter using quartz sand as a filler. Although it has the advantages of small filtration resistance, large specific surface area, strong acid and alkali resistance, and good pollution resistance, it has low precision for sewage treatment. It is difficult to meet the water quality index requirements of low-permeability oil field injection; the walnut shell filter uses walnut shell as the filter medium, because the walnut shell used as the filter medium has been specially treated, so it has a large surface area, strong adsorption capacity, and high removal rat...

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Problems solved by technology

[0003] However, there are several defects in the existing fiber ball filter. First, in the process of filter filtration, since the filter plate arranged under the filter filler has a structure of holes and grooves, it is inevitable that some parts will not be filtered or completely filtered. The sewage directly flows out of the device through the filter plate, resulting in the poor quality of the oilfield water injection, which makes the water injection more and more unable to meet the needs

Among the fiber ball filter fillers used today, although the filtering effect of the filter is very good, the existing filters do not have an automatic cleaning function, and all need manual cleaning, with a low degree of automation

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