Research On Comprehensive Control Of Water Injection Development And Short Shot For Low Permeability Q-Oilfield

Q oilfield is a low permeability oilfield, which has the characteristics of low permeability oilfield water injection development. Since the development of water injection,the characteristics of fast production decline, difficult stable condition, high water jinjection pressure, high speed of water injection pressure and poor water absorption capacity were shown. At present, there is little research and experiment on augmenting injection measures of water injection well, there are still a lot of problems in water injection well control. For example: unquantitative analysis of the reasons for the under injection well, leading to the control measures are not targeted; Measures of adaptability and governance objectives are not clear, resulting in a short period of effective measures; New technology and new test in the field of practical application is few, the implementation of the measures is difficult to determine, the effect of measures is difficult to evaluate, leading to the measures of the new technology is difficult to determine and so on.In view of the above governance problems, this paper launched the studies on the comprehensive treatment of water injection in Q oilfield, based on quantitative analysis of the reasons for the under injection well, governance objectives, adaptability evaluation of technical measures and so on, combining dynamic and static data, to find out the reasons for not absorbing water; Summarize the effect of previous measures to evaluate adaptability; This paper evaluate the adaptability of unconventional measures from various aspects, so as to further expand the scale of application. Through the analysis and summary of the existing data,find out the reasons for the evaluation and the adaptability of the evaluation measures,so as to develop targeted governance measures, to extense the effective period of measures and to improve the efficiency of the oil well and increase the output.Through the study of this article, the general problems of high water injection pressure,short shot and mechanism of augmented injection in low permeability oil field are summarized; Carried out the classifiction of under-injection well and the field test of non-conventional adding-injection measures. Through this study, a set of analysis, control and effect evaluated technology of the low injection well is formed for water injection development of the low permeability oil field, which provides experience and guidance for the development of similar oilfields in the future.