【摘要】 石油钻井过程中,由于井内温度、压力随井深不断地变化,在不同的井深处泡沫流体的流变性会发生明显的变化,给确定泡沫流变性带来了一定的困难。高温高压泡沫流变性测试系统研制成功,对于建立准确完善的泡沫流变性理论,发展泡沫钻井及相关泡沫技术,促进低压、低渗油气田开发具有重大的经济意义。通过对高温高压泡沫流变性测试系统进行合理的标定,确保了测量结果的可靠性。利用高温高压泡沫流变性测试系统,进行了多批次的高温高压泡沫流变性测试,取得了大批完整的实验数据,应用情况良好;并通过科学的数据处理方法,能够确定高温高压泡沫流变性的流变模型,以及相应的流变参数,为工程应用提供了计算依据。更多还原

【Abstract】 Because the temperature and pressure are various in different well depth,and the foam fluid rheology change with well depth,it is difficult to determine the foam fluid rheology during drilling.Successful development of HTHP foam fluid rheology test system is significant for establishing perfect and precise theory on foam fluid rheology,developing foam drilling and related technology,promoting development of low-permeability and low pressure oil-gas field.The reliable result of experiments can be gained by calibrating the HTHP Test instrument reasonably calibrating the HTHP foam fluid rheology test system.A great number of datum were obtained from many experiments of HTHP foam fluid rheology by means of the test system.Experiments showed the test system performance was better.The HTHP rheology model and corresponding rheology parameters can be determined by using science processing method.Moreover,it offers calculating basis for engineering application.更多还原