Application of Intelligent Verification Method for Dynamic Liquid Level Using Indicator Diagram in Digital Oilfield Projects
The No.1 oilfield of the Third Oil Production Plant in Daqing Oilfield is located in a special location,with deep underground oil levels,shallow wellbore inclination holes,large well inclination angles,long distance from the wellhead to the oil pump,complex equipment well tubing structures,and severe wax deposition at the wellhead,which leads to the failure of acoustic data measurement of the dynamic liquid level of the oil well,seriously affecting its oil well production capacity analysis,oil level dynamic detection,and daily management.To solve this problem,based on the intelligent analysis technology of indicator diagram and combined with the theory of rod and pipe motion mechanics,a dynamic liquid level test model for intelligent verification of indicator diagram is constructed.The indicator diagram and adaptive parameters of the dynamic liquid level of the deep inclined well in the 1#oilfield are obtained,and then corrected with the standard well.After calculation,the accurate liquid level depth of the deep inclined well is obtained.Experimental results have shown that this method can control the absolute error within a range of 20 m and provide certain guidance for calculating the dynamic liquid level of oil wells in similar oilfields.
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