The Application Research Of Dual Water Cut Multi-parameter Telemeter In Wenmi Oil Field Production Fluid Profile Logging Interpretation

With most of the wells in Wenmi oilfield entered into the third oil extraction stage,the content of underground water is considerably high and the relationship between underground water and oil is very complicated.This kind of circumstance leads to the difference between the logging interpretation results of production profile and actual oil-field production.Liquid production profile logging interpretation of low fluid producing wells has gradually become key research issue of logging interpretative work.Based on conventional interpretation method of fluid production profile,this paper takes low production and high watercut wells in Wenmi oilfield as the research object and studies the interpretation method for liquid production profile in Wenmi oilfield.First,on the basis of geological data,logging data and performance data,this paper analyzes the reservoir lithology,physical properties,temperature-pressure system,fluid properties and oil-bearing property in study area detailedly.Secondly,the working principle of double water cut multi-parameter telemeter is addressed in detail,and combining with the basic knowledge of mathematics,geology and physics,the content about how to calculate the essential interpretation parameters of liquid production profile is discussed deeply.Basis of the experiments of other researchers,this paper studies on flow pattern of oil-water two-phase,and found that in different moisture content and different flow circumstances,flow pattern is several variable,and it has large difference.Through the experimental calibration data,scaling chartboard of flowmeter and interpretation chart of water content are depicted,the corresponding chart interpretation method is established,and the corresponding log interpretation process of liquid production profile is made.According to the study before,this paper obtains an effective interpretation method.By comprehensive use of the geology data,oil production test data,and combined with the characteristics of liquid production profile test curves in Wenmi oilfield,qualitative interpretation of the relevant production fluid profiles is made.By using the chart interpretation method set up before,quantitative interpretation of the practice data in the oil field is made.The effective interpretation method can be well applied to the studied area,which provides reference for low-yield oil well test in other oilfields and it has a good application prospect.