压裂水平井电模拟实验研究

Electrolytic simulation experiment of fractured horizontal well

根据水电相似原理,设计了压裂水平井的电模拟实验,研究了单井状态下和井网条件下裂缝参数对压裂水平井产能的影响状况及其等压线分布规律。结果表明,压裂水平井存在极限产能;压裂井最优裂缝条数受水平井段长度、裂缝长度、层位是否射开等因素的影响,在不同的井网中,最优裂缝条数也会相应变化。对不同井型的等压线对比发现,压裂水平井扩大泄油面积的能力优于普通水平井。

An electrolytic simulation experiment was designed according to the water and electricity resembling principle.The equipressure contour distribution and the effects of fracture parameters on the productivity of the fractured horizontal well were experimentally studied under the conditions of single well and well pattern respectively.The experiment results show that the fractured horizontal well has limit productivity.The optimum fracture numbers were affected by length of horizontal section,length of fractures and the natures of wells and changeable in the different well patterns. The comparisons of equipressure contours in different well configuration indicate that the fractured horizontal well is superior to the common horizontal well in extending the control area.