Method, device and dosing control charts for optimizing paraffin removal system of oil wells

Abstract

The invention discloses a method for optimizing a paraffin removal system of oil wells and further discloses a device for optimizing the paraffin removal system of the oil wells and dosing control charts for optimizing the paraffin removal system of the oil wells. The method comprises the steps that paraffin precipitation comprehensive evaluation coefficients of physical property parameters related to paraffin precipitation are built; the paraffin precipitation comprehensive evaluation coefficients are graded, an oil field is selected from the graded paraffin precipitation comprehensive evaluation coefficients, and the paraffin precipitation speeds of the oil wells, with the different yields and the different water content levels, of the oil field and the paraffin removal speed of paraffinremovers are measured; the paraffin removal periods of the different oil wells of the oil field are calculated according to the paraffin precipitation speeds and with the situation that the paraffinprecipitation thickness of each oil pipe reaches a value which cannot meet the production requirement as a critical point; and the paraffin removal speed and the required using amount of the paraffinremovers of the oil wells, with the different yields, of the oil field are obtained. The problems that as the oil field development time is prolonged and new oil fields are put into production continuously, the physical properties of crude oil have great difference, the proportion of wells with the low liquid yield is increased, the pertinence of the paraffin removal system is poor, and the requirement of fine management of the oil wells cannot be met are solved.

Description

technical field [0001] The invention relates to the field of oil exploitation, in particular to a method and device for optimizing an oil well wax removal system and a dosing control chart, so as to realize the purpose of individualized dosing in an oil well. Background technique [0002] Regular addition of wax remover to oil wells is an important daily management measure to reduce the load of pumping units, save energy and reduce consumption, and extend the maintenance-free period of oil wells. Generally, the wax removal system in oil fields is given through on-site exploration, and only two factors, production and water content, are considered. The range of interval division is wide. With the extension of oilfield development time and continuous production of new oilfields, the physical properties of crude oil vary greatly, the proportion of low-production liquid wells increases, and the wax removal system is not targeted enough to meet the needs of fine management of oil ...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides an oil well wax removal system optimization method and device and a drug dosing control chart to solve the problem of large differences in crude oil physical properties and an increase in the proportion of low-production liquid wells with the extension of oilfield development time and continuous production of new oilfields. The wax removal system is not highly targeted and cannot meet the needs of oil well fine management

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