吐哈盆地小草湖洼陷低孔低渗储层测井评价

Logging Evaluation for Low Porosity and Low Permeability Reservoir in Sag of Xiao Caohu in Tuha Basin

随着吐哈盆地勘探的进一步深入,低孔、低渗储层是测井解释和储层评价的一个难题,综合的应用各种资料进行储层评价和油气层识别是解决问题的有效手段,加强对钻井取心、分析化验资料的利用,对快速建立四性关系,进一步精细解释奠定了基础。通过单井的精细解释、多井的横向对比,利用交绘图版和经验公式等方法,加强时间推移测井和一些测井新技术的应用等多种手段,在小草湖洼陷红台油气田开展的低孔、低渗储层测井评价取得了良好的效果,利用上述评价技术仅对低产层采取的改造就新增133.4×108m3的天然气地质储量。

With the further exploration of Tuha basin, one difficult problem is logging interpretation and reservoir eility reservoir. Combination application of various data is an effective way to solve the problem. Strengthening the usage of core sample and analysis and test data can further set up the foundation for the establishment of four kinds of properties short time and the fine interpretation. By various ways, such as fine interpretation for individual well, multi - well lateral correlation, crossplot and empirical equation, strengthening the application of time - lapse logging and the new logging techniques, logging evaluation for low porosity and low permeability reservoir in Hongtai hydrocarbon field in sag of Xiao Caohu has taken a good effectiveness. Using evaluation techniques mentioned above to reconstruct low recovery bed increases extra 133.4 × 10^8 m^3 OOIP of natural gas, which makes a contribution for Tuha Oil Company to increase OOIP and construct productivity.