摘要
根据水平井渗流的基本规律,把水平井分解为直井井排,将水平井的小渗流场转换到水平面上来。当油藏供给边缘为直线时,把水平井分解为直线井排;当油藏供给边缘为椭圆形时,把水平井渗流区域等效为拟圆形,将水平井分解为环形井排。通过等值渗流阻力法得到了新的水平井产能公式,对比发现,新公式的计算结果与徐景达所说的长圆形模式下的情况相符合,具有一定的实用性。
Based on the horizontal-well seepage mechansim, horizontal well can be subdivided into a combination with several vertical wells, and its small seepage field is converted to a water level. For an oil reservoir, when supplying edge is a straight line, the horizontal well may be subdivided into a combination with straight-line wells; and when supplying edge is an oval and the seepage field can be put as the equivalently quasi circular, the horizontal well may be subdivided into a combination with multiple annular wells. A new horizontal-well deliverability formula is obtained by means of a method of equivalent flow resistance. After our comparison, it is found that the obtained result accords with another result from long-circle pattern by Xujingda, and this formula is practical.
出处
《天然气勘探与开发》
2015年第3期59-61,12,共3页
Natural Gas Exploration and Development
关键词
水平井
产能公式
等值渗流阻力法
井排
平面径向流
horizontal well,deliverability formula,equivalent flowing resistance method,well lines,plane radial flow
