Xifeng Oilfield Water Injection Technology Advanced In The Early Development Of Evaluation

With the transformation of oil exploration technology and continuous improvement of technology and China’s energy development strategy, low permeability, the development of ultra-low permeability oil reserves has become stable development of China’s onshore oil industry, an important potential for future sustainable development of oil industry technology direction. The low-permeability oil fields or special (ultra) low-permeability oil rich reserves, it will be for quite a period of increasing reserves and production of the main resource base. Therefore, exploration and development of low-permeability reservoirs can not be ignored, and the study of the percolation mechanism of low permeability oil fields and mining program to develop technology of great significance.For ultra-low permeability reservoir fluid flow is a pressure gradient of the non-Darcy flow and reservoir with elastic-plastic deformation, etc., in the rational development of methods to explore the long-term process, Xifeng oil field reservoir development proposed to improve the effectiveness of a valid water development model, that is ahead of the water. However, the effect of advanced injection mechanism and improve the development of advanced water injection technology policy research less. Therefore, this paper Xifeng Oilfield White Horse District area and Mr Tung Chi-water reservoir, for example to carry out ahead of the flow mechanism and the development of technology policy research has important theoretical significance and practical value.This article is based on the low permeability and low permeability reservoirs in the development of the practical problems faced in the previous summary has been based on the results of low-permeability reservoir flow mechanism and development of technology were studied. Papers in the analysis of the low permeability reservoir Xifeng and development of dynamic characteristics of the geological conditions on the basis of the work was completed for the following studies and obtain the corresponding research results:1) the use of Xifeng oilfield geological information on the White Horse District Xifeng Oilfield main geological features of research, analysis Xifeng Oilfield low porosity and low pressure, low permeability of the geology, fluid properties, flow characteristics and pressure and temperature systems.2) combined with a low permeability reservoir characteristics of Xifeng, through the stress sensitivity of low permeability reservoir analysis, to establish a stable water flow mechanism ahead of the theory, the lead single well in low permeability reservoir water injection to improve the research capacity, the establishment of an advanced water source of an exchange capacity equation, from the theoretical argument of the advance single-well injection can improve productivity, improve low-permeability reservoir flow conditions.3) to determine ahead of Xifeng oilfield water injection technology policy. According to the White Horse area and Xifeng Oilfield Dongzhiyuan the geological conditions and fluid properties, to carry out reasonable development and water ahead of Xifeng Oilfield Technology Policy Research (water ahead of time, effective injection time, injection pressure, injection strength, oil yield development indicators), to guide field reasonable development.4) Xifeng Oilfield advance the implementation of the development of injection-site tracking and analysis, development of advanced water injection to evaluate the effect and found that the development of the main problems, and propose the technical direction of the next stable.Through the low permeability reservoir ahead of the Xifeng water flow mechanism and the development of technology policy research, will improve the low permeability oil reservoir water effect, a reasonable advance the development of reservoir water development policies provide a theoretical basis and technical support, especially to improve the Xifeng production of low-permeability oil wells, low permeability oil field development to ensure maximum efficiency with a good guide, but also for the development of China’s similar reservoir also has an important role in learning.