投放可捞式小冲管技术的应用

Application of Technology of Dropped and Small Fishing Tube

在油水井冲砂施工过程中,遇到管柱冲不动的情况时,不必起出冲砂管柱后再下其它工具,而是直接投入小冲管就可以完成冲砂工序,省略了施工工序,缩短了施工工期,降低了劳动强度,减少了对地层的污染,节约了成本支出。

During sanding operation to oil and water wells,encountering situation of tubing not moving down,sand washing string need not pull out before making other tools,while,the small tube could be used directly to complete sand washing operations,which omits the process,shortens the operation period,reduces the labor intensity,decreases the pollution to formation and saves the costs.