水力深穿透射孔技术用于底水油藏开发

根据油田实际生产资料，从数学解析和数值模拟两方面研究了水力深穿透射孔技术对底水油藏的开发效果。研究表明：理想完井状态下，水力深穿透射孔井的开发效果好于直井，在射孔总长度一定时，射开一个长孔比射开多个短孔的开发效果要好；完井污染状态下，射孔深度大于污染表皮半径时，射开多个短孔比射开一个长孔的开发效果要好。储层的污染程度对水力深穿透射孔井的开发效果有较大的影响，确定水力深穿透射孔井完井方案，需要准确了解储层的污染程度。

The Exploitation of Bottom-water Reservoir by Water-jet Deep Penetrating System

The exploitation effect of bottom-water pool by water-jet deep perforation system is studied from petroleum reservoir engineering and numerical simulation in terms of oilfield factual datum, and the exploitation effects between vertical well and deep-penetrated well are compared. The results indicate the exploitation effect of deep-penetrated well is better than that of vertical well. When total length of perforation must, perforating a long hole is better than perforating several short holes. If the oil reservoir is contaminated and the perforation length is greater than the radius of contaminated zone, the development result of perforating several short holes is better than that of perforating a long hole. So formation pollution degree affects the exploitation effect greatly, and it should be learned clearly before the perforation completion plan is confirmed.