蒸汽吞吐井流入动态的数据挖掘研究

针对稠油蒸汽吞吐井生产时流入动态变化复杂，当前用于确定其流入动态变化规律的主要方法为数值模拟法，其限制条件多、研究时间长等问题，在结合现场实际油藏，并用数值模拟计算结果的基础之上，对于影响稠油蒸汽吞吐井流入动态的周期注入量、蒸汽温度、蒸汽干度、注汽速度、焖井时间等注汽参数，进行了影响规律的研究，并利用灰色关联方法对各个注入参数进行了定量的敏感性分析，并在此基础上回归得到了综合考虑上述各种因素在内的稠油蒸汽吞吐井流入动态计算模型。经检验，此模型具有较高的精度，且计算方便、容易掌握，可以用来指导现场实际生产。

A NEW CALCULATION METHOD OF INFLOW PERFORMANCE RELATIONSHIP FOR HUFF AND PUFF WELLS

Aiming at the complex transformation of the inflow performance relationship of the huff and puff wells and the restrictive，costly analysis and limited range of application of the numerical simulation，which is usually used to simulate the inflow performance relationship，and according to the result of numerical simulation，the grey relation analysis method is used，the sensitivity of the influencing factors to the inflow performance relationship of huff and puff wells，such as cyclic steam injection volume，steam temperature，steam ratio，steam injection rate，steam soak time and so on，are studied.According to the analysis above，a computation module of the inflow performance relationship of cyclic steam stimulated wells is built，which includes all the factors above.After examination，the model is found with higher accuracy and can be used to guide field practice.