【摘要】 钻井导致储层损害的研究包括室内试验研究和现场评价研究两方面。室内研究的目的在于弄清导致储层损害的机理 ,并在此基础上制定合适的保护储层措施 ,如有针对性地选择有利于保护储层的钻井液以及对现用的钻井液进行评价。文章从储层损害机理、模拟装置的研制、保护技术研究和评价标准制定等方面 ,对储层损害的研究进展加以综述 ,总结和分析了钻井导致储层损害的试验研究现状和存在的问题 ,得出几点结论 :①油层损害机理研究方面 ,现已基本弄清储层损害主要机理 ,并由定性进入定量研究阶段 ;②室内模拟装置向高温高压模拟储层条件、动污染岩样和自动化多功能方面发展 ;③室内评价方法和模拟装置的标准化工作作得很不够 ,严重影响了研究结果的准确性 ;④与油层损害研究深度相比 ,对气层损害的研究刚刚起步 ,各方面均处于定性研究阶段 ,尚没有合适的评价装置、评价方法和评价标准。更多还原

【Abstract】 The reservoir damage caused by the drilling of oil and gas wells will greatly reduce the productivity of oil and gas wells.The study of reservoir damage caused by drilling includes indoor experiment and reseach and site evaluation and reseach.The purpose of the indoor reseach is to understand the mechanism causing reservoir damage and,based on this,to take the suitable reservoir protection measures,such as taking a clear aim to select the drilling fluid favourable to reservoir protection and evaluating the drilling fluid.In this paper,the progress in study of reservoir damage (including the mechanism of reservoir damage,development of simulation device,study of protection technique and formulating the standard,etc.)is summarized and the actual situation of the experiment and research of reservoir damage caused by drilling and the existing problems are summed up and analyzed,obtaining several conclusions as follows:(1)In respect to the mechanism study of oil reservoir damage,the main mechanism of reservoir damage has been basically understood and the study has entered the stage “from qualitative study to quantitative one”;(2)The indoor simulation device is developing toward simulating high temperature and high pressure reservoir condition,dynamic contamination of rock sample,automatization and multifunction;(3)The standardization of the indoor evaluation method and simulation device is poor,which seriously affects the accuracy of the research results;(4)As compared to the degree of oil reservoir damage study,gas reservoir damage study is still in initial stage and all methods are qualitative,and there are no suitable evaluating device,methods and standard.更多还原