摘要
通过胜坨油田砂粒筛析曲线得出d90=0.518mm,对恶性漏失井选用0.5～0.9mm的涂料砂作桥堵材料,恶性漏失流体渗流模式由原先的拟径向流变为径向流,恶性漏失井冲砂施工成功率由75.6％提高到93.1％.
It is known that d90 is 0.518mm according to the analysis of sand sieve curve of Shengtuo oilfield. The paint sand of 0.5- 0.9mm is used as the plugging material of malignant absorption wells, which makes the seepage pattern in the wells change from pseudoradial flow to radial flow, and the sand washing success rate of the malignant absorption wells be improved from 75.6% to 93.1%.
出处
《石油工业技术监督》
2014年第5期16-18,共3页
Technology Supervision in Petroleum Industry
关键词
冲砂
恶性漏失
涂料砂
治理
sand washing
malignant dropout
paint sand
control
