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中文摘要：
为了更好地描述多尺度孔隙碳酸盐岩油藏的渗流特征,建立考虑多重窜流的三重介质油藏水平井不稳定试井模型,并对模型求解,绘制典型曲线。通过对水平井与直井在不稳定渗流早期流线特征的相似性分析,以及对不同表皮系数定义的正确区分,确定各表皮系数间的关系,进而引入水平井有效井径的概念。结果表明：多尺度孔隙碳酸盐岩油藏水平井开采下的渗流过程可能出现9个流动阶段;该方法与传统方法相比计算结果可靠,彻底解决了负表皮系数水平井瞬态压力计算的难题,适用范围广。
英文摘要：
In order to accurately describe the seepage flow characteristic of carbonate reservoir with multiscale pores, a model for pressure transient analysis of horizontal wells in triple-porosity reservoirs with multiple crossflow was established. The model was solved and the type curves were plotted by programming. By analyzing the flow streamlines＇ characteristics of hori- zontal wells and vertical wells in early stage of non-stationary flow, the similarities of the two kinds of models were found, and different skin factors were defined. Based on this, the relations among different skin factors were developed and the effective well radius of horizontal well was introduced. The results show that there are nine flow periods of the seepage flow of horizon- tal wells in carbonate reservoirs with multiscale pores. The comparison of the solutions from both the traditional and the pro- posed method indicates that the proposed method is correct and more applicable, and the problem of transient pressure responses of horizontal wells with negative skin factors is solved.
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