The Study Of Remaining Oil Distribution And Potential Measures Of The Jing 35 Block Of Liaohe Oilfield

This article is to study the Jing 35 block is located in Shenyang City, Liaoning Province Masanjiazi rural territory Yuhong District, structure on the northern of Biantai - Fahaniu of fault tectonic zone of Damintun depression, the west is next to Jinganpu fault tectonic zone, the east is Caotai burial hill. The type of Reservoir is lithology ~ structural reservoir, reservoir depth is -1080 ~-1680m, and reservoir properties are poor. Since 1990 investment in development, which has taken a series of measures to increase production, such as cyclic steam stimulation, chemical solvents plugging, electromagnetic heating, micro-organisms stimulation and microbial flooding and so on, the effect is all not obvious.On the basis of meticulous and quantitative reservoir geological research, starting from geology, logging, oil reservoir engineering and so on, the study proceed fine reservoir description research is unfolded with the centre of reconstructed geologic model. In geological aspect, guiding by sedmentology, using cycle contrast method namely"cycle as the basis, controled by key bed, contrasting through three grades, subdivided by degrees", refinement single layer model containing seven groups of oil-bearing horizon and ninety-two single layers are established. According to lithofacies, paleontological and electrical marks, the type of sedimentary micro-facies and its developmental character is confirmed, the research on profile sedimentary micro-facies is carried out, and sedimentary micro-facies and sand body distribution law is further analyzed. And united the explanation result of log parameter, the reservoir 3-D geological model is established including oil pool scale, sublayer scale, and single sand body scale.In the aspect of oil reservoir engineering, according to producing degree of waterflooding, control degree of waterflooding, economic critical pattern size and so on, the adaptability of block well network is evaluated. Through analyzed the relationship between water cut and degree of reserve recovery, the relationship between water drive index and water cut, and effectiveness of water injection etc., the block's development level is comprehensively evaluated, the oilfield integrated model is established, the reserve curve fitting and production history fitting is accomplished, and then the distribution law of remaining oil is studied. On the base of these, the concrete comprehensive adjustment and disposition suggestions are advanced at last.