水力探测大孔道和剩余油饱和度解释模型的建立

水力探测是探测注水井与采油井之间储层情况的试井技术,它不仅能够提供合理产能、地层参数和地层压力等信患,而且适用于特高含水开发阶段油层平面剩余油的探测和大孔道的识别。研究建立的井对连通渗透率、连通孔隙半径中值、大孔道平均厚度和平均含油饱和度水力探测解释模型可以准确评价储层状况。

Building of the interpretation model of the large channels and remaining oil saturation by hydraulic survey

The hydraulic survey technology is a well test one for surveying reservoir conditions between water injection wells and oil production wells. It can not only provide information of reasonable productivity, formation parameters, formation pressure and so on, but also apply in planar remaining oil survey in oil-bearing formations and the large channel recognition in development phase of extra high water cut. The interpretation model built by hydraulic survey of connected well-pair permeabili ty, median radius of connected pores,average thickness of large channels and average oil saturation can accurately estimate reservoir situation.