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Assessment of residual oil saturation with time-differentiated variable multiple material balance model

Energy Geoscience 2022年第1期3卷 1-7页

作者： Zhiyong Deng Lei Ding Hengrong Zhang Wei Tan Wei Yuan Hainan Branch of CNOOC(China)Limited Haikou570311China

This study aims to improve the evaluation of residual oil saturation in water flooded zones based on the material balance model(MBM)with variable multiple for injected *** investigated the change patterns of rock-electro parameters during waterflooding through the analysis of displacement *** work differentiated the waterflooding into numerous displacement processes and accordingly propose an improved time-differentiated variable multiple *** calculation results of the improved model are more consistent with the displacement experiment data of ***,the improved method was integrated into the comprehensive interpretation platform of offshore logging to analyze water flooded zones of a well in the A *** a result,the residual oil saturation calculated is in close agreement with the results of experiments on *** results indicate that the time-differentiation and variable multiplier for injected water can effectively enhance the assessment accuracy of the residual oil saturation of water-flooded zones.

关键词： Material balance model residual oil saturation Time differential Dynamic rock-electro parameters

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Experimental investigation of wettability alteration on residual oil saturation using nonionic surfactants: Capillary pressure measurement

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Petroleum 2015年第4期1卷 289-299页

作者： Masoud Amirpour Seyed Reza Shadizadeh Hamid Esfandyari Saeid Ahmadi Department of Petroleum Engineering Abadan Faculty of Petroleum EngineeringPetroleum University of TechnologyAbadanIran Department of Petroleum Engineering Tehran UniversityTehranIran

Introducing the novel technique for enhancing oil recovery from available petroleum reservoirs is one of the important issues in future energy *** of all operative factors,wettability may be the foremost parameter affecting residual oil saturation in all stage of oil *** wettability alteration is one of the methods which enhance oil recovery from the petroleum ***,the studies which focused on this subject were more than the past and many contributions have been made on this *** main objective of the current study is experimentally investigation of the two nonionic surfactants effects on altering wettability of reservoir *** of this work is to change the wettability to preferentially the water-wet *** reducing the residual oil saturation(Sor)is the other purpose of this *** wettability alteration of reservoir rock is measured by two main quantitative methods namely contact angle and the USBM *** of this study showed that surfactant flooding is more effective in oil-wet rocks to change their wettability and consequently reducing Sor to a low ***(Zizyphus Spina Christi)is low priced,absolutely natural,and abundantly accessible in the Middle East and Central *** on the results,this material can be used as a chemical surfactant in field for enhancing oil recovery.

关键词： Wettability alteration residual oil saturation Nonionic surfactant USBM method Contact angle

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Application of Tracer Model in the Remaining oil Distribution of 95 Block oilfields of Central Plains

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International English Education Research 2014年第4期 1-3页

作者： Xingjia Bai Xingwei Bai Xi'an Shiyou University Xi'an Shaanxi China 710065 Drilling Engineering Technology Research Institute of Daqing Drilling Company Daqing Heilongjiang China 163413

With the development and utilization of oil and gas fields, oil mining become more and more difficult. The remaining re- serves of oil in the oil distribution is difficult to confirm, in order to understand and grasp the distribution of the remaining oil in the reser-voir, calculated using tracer concentration methods used mathematical models to calculate the residual oil saturation in the reservoir, from the theoretical analysis of tracer migration process, you can more accurately determine the distribution of the remaining oil, this method has good prospects for development.

关键词： Tracer Mathematical Model Tracer Production Curve residual oil saturation

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