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随着油田开发的深入,油田递减率的不断上升,每年都会有部分套管变形、错断的高含水油井关闭,把几千米的套管扔进地下。美国内华达州的奥玛特公司申请的一项欧洲专利
With the deepening of oilfield development and the ever-decreasing rate of oil fields, some casing deformations occur every year. The faulty high-water cutoff wells are shut down and threw a few kilometers of casing into the ground. A European patent applied by Omarth, Nevada