机械堵水管柱验封技术研究

油井堵水是控制油井含水上升、改善水驱效果、提高储量采出程度的最有效措施之一.为了准确判断出堵水失效的原因,大庆油田研究开发了套溢法、捞油法、套溢和压力计结合法3种堵水管柱验封技术,解决了以前堵水管柱不能验封的问题,为油田开发综合调整提供了依据,对于油田控水、提高油田开发效益具有重要的意义.详细介绍了3种验封技术的管柱结构、工艺原理及现场应用情况.

A Research on Sealing Detection for Machine Plugging

Water plugging is one of the most effective measures of controlling water cut rising, improving water flooding, increasing production rate of recovery. In order to figure out the main failure factors the Daqing Oilfield develops three sealing detection methods, including casing overflow method, oil picking method, and casing overflow combined with pressure gauge method. These methods make it easy to detect plugging pipes and provide arguments for comprehensive oilfield adjustment, and are significant for improving oilfield production benefits. Finally, this paper introduces in detail the pipe structure, mechanisms and field applications of the three kind of detection techniques.