Study On SA Ⅱ C-D Oil Reservoir Engineering Project Of Daqing South Four Areas In Western

The south fourth western of oil field is located in the south of Chang Yuan oil field in Da Qing Saertu, it begins in Sanpai of the third south area from north, southward to Sanpai of the fourth south area, it begins in internal oil-water boundary of Pu II from north,eastward to the Sa Da road, its developed area are 8.44Km2, and geological reserves are 5690.76×104t. By analyzing different parameters of the fourth south western Sa II reservoir block, including seismic data, drilling data, logging data, coring, analyzing test data. We have comprehensive evaluated the integrated characteristics, including tentonic characteristics, oil and gas water distribution characteristics, reservoir type, fluid properties, sedimentary characteristics, reservoir characteristics, system temperature, pressure, seepage physical characteristics and formation and injection test analyzing. Describing fine geological body subtly, Finding out mining features, Preparing development plan, It has been clear about the development indexes such as development principle, the development of this block method, well pattern, well spacing, injection mode, the injection-production pressure system and the reasonable pressure level.1.The introducition of reservoir characteristics. The pressure of Gaotaizi,Putaohua and Shaertu oil layer of Shaertu oil reservoir in the city of Daqing are pressure system pressure system. By studying of the average original formation pressure, the original saturation pressure, the original full differential pressure, the temperature of reservoir, the original pressure coefficient of reservoir and the rock compressibility, we determine the reservoir types as anticline structure reservoir with inactive edge water and bottom water.2.Analysis on feature of reservoir. Considering the complete analytical experiment, the material of systematic coring, this paper research on the reservoir characteristic of the deposition feature of reservoir minerals、structure of pore、the feature of rock and property. We can estimate adequately the reservoir characteristic.3.The design reservoir engineering. Combining the study of the reservoir geological characteristics, and the analysis of formation test, production test and oil test, we can confirm the detailed development index of development mode, development principle, well pattern, well, well spacing, water injection mode, injection-production pressure system and the reasonable level of pressure.4.Design of injection and production wells.On the basis of the characteristics of reservoir geology and reservoir engineering study on the precise positioning of oil-rich region, clear and reasonable flooding patterns, the overall deployment, we achieve a reasonable development of high quality.5.Development index forecast.On the development of pre-trial oil production test data analysis and argumentation, taking on a different plane capacity, and reasonably determine the initial well production decline rate, we accurately predict the development of the indicators.Based on the research of the comprehensive geological characteristics of reservoir and detailed analysis of formation test and production test. Describing fine geological body subtly, Finding out mining features, Preparing complete development plan, realize the purpose of efficient and reasonable development. The research ideas and methods has positive significance to other similar reservoir areas.