Logging Technology In Pucheng Oilfield Development In The Late Residual Oil Monitoring Applied Research

At present,China,only inferior in US,is the second biggest petroleum consumption conntry in the world.But the oil resource reserve of China is actually limitied,so mining the underground oil resource as far as possible is an urgent task for all scientific and technical workers.This article takes the oil field of Henan Pucheng as an example.Firstly,it analyzes the structure characteristic,formation characteristic and reservoir characteristic of this oil deposit, summarizes the oil field's history and development situation, studies non-homogeneous meida characteristic,rhythmic mode and water drive effect in Shashang one iol layer of Pucheng's east area.,researchs this oil field 's reservoir mobile unit ,and sums up the method of mobile unit classification division as well as the characteristic of reservoir mobile unit in Sha'er one layer.Secondly,it reserchs the method of distinguishing waterflooded degree of this reservoir bed and the method of distinguishing water_flooded layer with new technology of log, evaluates distribution of remaining_oil in this oil field as a whole.Sha'er one segment in east area of Pucheng ,in detail ,can be ploted out twelve sand layer,they wholly belong to homogeneous meida high osmotic reservoir bed,now they have becomed typical three_high oil reservoirs. On the base of analyzing log's response characteristic in water_flooded layer,researching qualitative explaination's method about water_flooded layer in detail, quantitative explaination's method about water_flooded reservoir saturation,the method about explaining water injection well's water absorption profile,and standard of distinguishing water_flooded layer with mobile unit,and so on;Also ,it explains new plog since 2000.Through statistical the water_flooded situation of every layer on Pucheng's east area 's Sha'er one,it can seen that because of the difference of absorable situation between every layer and the difference between water_flooded degree,the distributing of remainingoil's reserves is asymmetrical. According to mobile unit's analytic principle, making use of log's data,I evaluate and divide mobile unit characteristic of the main oil beaning series in this area,and make a comparison with Production Dynamic data.Distributed characteristic of remainingoil in Pucheng's east area 's Sha'er one,mainly distribute in II,III mobile unit oil reservoir.In terms of analyzing the actual data, C/O log is a effective log method when carrying on the watching in remaining_oil in Pucheng's east area 's Sha'er one.Therefore,when researching the remaining_oil's distribution in this area,carrying on the watching in remainingoil through properly increasing C/O log method,as well as improving working method and mining-oil method ,we can increase oil recovery in east area of Pucheng oil field.