MD Remaining Oil Distribution Of High Water Cut Blocks

In order to achieve the sustainable development of high water cut period, the research on the distribution of remaining oil is the basis of the oil field. Based on the results of exploration and development, in one area, it is necessary to make a systematic study of reservoir characteristics, so as to predict the reservoir development zone and correct evaluation of oil, gas and water. Therefore, it is urgent to carry out the correct classification and comparison of main reservoirs, and to study the development characteristics of the reservoir, and to analyze the characteristics of reservoir heterogeneity. MD in the late development blocks into high water cut development period, the major, the remaining oil were carried out to study the significance of remaining oil research can reveal the oil and gas distribution and variation of, clear to adjust the direction of the tap and scientific forecast the development of indicators and the direction of tapping and lay a good foundation.Based on the existing stratigraphic division and comparison, the S2 reservoir strata division and correlation are carried out, and the framework is established. The framework of the research is to provide a basis for the structural characteristics and the future research. The study area cores and well logging data, according to the observation of drilling cores, well logging curve characteristics analysis of Sanjianfang formation sedimentary environment, draw S2 log phase diagram version, the first analysis of single well sedimentary phase, and the analysis of the sedimentary section combine types of sedimentary facies and facies distribution, check Ming S2 is a reservoir of main sand body distribution, S2 micro sedimentary facies maps drawing, development characteristics and spatial distribution of the different types of sand body description.Research of logging, logging and regional geological data, the S2 reservoir petrological characteristics of wake, diagenesis, pore structure and types, structure and physical property variation of and to analyse the diagenesis influence on reservoir, based on reservoir to make comprehensive evaluation. By analyzing the characteristics of oil and gas reservoir, the reservoir characteristics are summarized, and the factors affecting the distribution of oil and gas in the study area are analyzed, and the main controlling factors and the accumulation law of oil and gas in the study area are summarized.Based on the above research, we can draw MD block in the remaining oil distribution mainly concentrated in the small fault block of the vertex, tapping the potential of late to focused on the development of the conclusion of this regions.