The Three-dimensional Geological Modeling In Zhao 293 Block Of Daqing Yongle Oil Field

Along with the transfer of global oil and gas exploration target,the development of petroleum geology,due to the continuous development of oil and gas fields,the development of remaining oil has become the key area of scientific research in major oil and gas fields.In order to realize the effect of effective exploitation,the geological structure,sedimentary characteristics and the data material obtained in the past development process are modeled and predicted by the act pattern in the area of the destination area,so that the scientific new well deployment of the expanding area can be realized.This paper takes the reservoir of Zhao 293 block of Yongle oilfield in Daqing as the research object,focuses on the two-dimensional and three-dimensional seismic coverage area as the target area.Through the literature collection,optimization,collation,the predecessors of the study was focused on reading,analysis,extraction and summary.The sand body characteristics,structural characteristics,storage characteristics and sedimentary characteristics of the target area are comprehensively analyzed and described in detail.To understand the reservoir type by combining with the geological condition of the target area.According to the basic data,Using modeling software to establish the structure,sedimentary facies and porosity and permeability,oil saturation and other models reflecting reservoir physical property.The model of correlation attribute parameters of the target reservoir in Zhao 293 block is obtained through the establishment of geologic model.Calculation of the geological model reserves,abundance and storage allocation of different types of reserves in Zhao 293 block to assess the reliability of the reserves;then the reasonable and limit well pattern density in the 293 area is calculated by the control degree of water drive,oil recovery and production capacity,Then the reasonable distance between wells and the distance between wells are calculated by calculating the distance between wells and the distance between wells,and the reasonable well spacing in Zhao 293 is obtained by analyzing the distance between wells with the limit well network density.On the basis of the above research results,the paper studies the distribution well pattern and the optimum design of the pattern of the well pattern under the grape flower reservoir condition.The paper by using geostatistical techniques.Establishing the structure,sedimentary facies and physical property model,It is confirmed that the reservoir parameter values in Block Zhao 293 are significantly higher than other types of sand bodies.The relatively high porosity and permeability reservoirs are separated by a relatively low porosity and permeabilityreservoir in the plane distribution,and the porosity is relatively high in heterogeneity between wells;the geologic model reserves,abundance,and channel sand body geology in the Yu 293 block are relatively high.The proportion of reserves is calculated.At the same time,geological modeling results and well network adaptability were applied for evaluation.With reference to Block 293,due to the influence of natural micro-fractures,the planned layout of wells in the unexpanded unexplored zone was located at NE45° and the well pattern density was 424m×212m.The anti-ninth point well network will have better development results.