Study On Residual Oil Analysis Of Remaining Oil In The North Belt Of Rransition Of Sa North Oilfield

Transitional zone of northern north oilfield has entered the stage of middle and later periods of the development of specific performance is big,the injection well injection fluid producing Wells moisture content is high,the distribution of remaining oil in the reservoir is very complex,result in oil field overall development difficulty is increasing day by day,severely restricted the overall oilfield development effect.Aimed at this situation,the system of the distribution of residual oil inside the reservoir type is analyzed and summarized,and based on this,advances the corresponding exploration,to improve the oilfield development effect whole,will be able to ensure stable production.Based on North development zone in northern transitional zone sal figure reservoir,as the main research object,in the remaining oil distribution study of existing methods to conduct research and finishing on the basis of,in combination with the practical situation of the northern transitional zone,from the aspects of reservoir,structure and well pattern,the study of remaining oil distribution law.Shock at first,this paper USES the well spacing structure such as 1 meter combining with contour mapping method,draw,I,II group of the upper reservoir related structural map,the type of micro structure in the area of accurate recognition and statistical work,on the basis of the consideration in the micro structure of regional production fluid productivity situation at this stage in the early stages of the production and related data,comprehensive analysis,to obtain various types of micro structure and relevant corresponding relations between the remaining oil enrichment area,the final purpose of block reservoir fine description of the research,makes a comprehensive analysis of related parameters and the spot,Therefore,the residual oil distribution law and its main characteristics in saltu reservoir in the northern transitional zone of north sabei oilfield are determined.,it is concluded after analysis and research within the reservoir conditions and well pattern deployment is the main factor affecting the transition zone of remaining oil distribution in northern state,sal figure of reservoir remaining oil mainly can be divided into block type of remaining oil,river edge type of remaining oil,injection-production well sand body connectivity garment type of variation between three types of remaining oil.In the transition zone of northern sal figure type identification,to identify types of remaining oil distribution and corresponding exploration high reliability,good application and popularization value.