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容2井位于下扬子区句容构造,采用裸眼完井。裸眼段经过酸压改造后,使用螺杆泵排液测试,考虑螺杆泵上部层位出砂,为防工具砂卡故未配备油管锚,在试采期间发现泵筒落井。由于井身结构上小下大的限制,加之落物倾斜,打捞难度较大。按照增加偏心距的思路结合现场打捞实际情况,提出通过弯油管增加偏心距,使用可退式捞矛与弯油管组合,分两次成功打捞出井内落物,其成功实践为裸眼井及上小下大井径内打捞积累了经验,有一定借鉴意义。
Rong 2 well is located in the Lower Yangtze region Jurong structure, with open-hole completion. The naked eye after acid pressure transformation, the use of screw pump drainage test, consider the upper layer of the screw pump sand, sand tools for the prevention of the device is not equipped with a pipe anchor, during the trial found during the pump barrel drop. As the well body structure under the big limit, coupled with falling objects tilt, salvage more difficult. In accordance with the idea of increasing eccentricity and the actual situation of on-the-spot salvage, it is proposed to increase the eccentricity through the curved pipe and use a combination of a retractable spear and a curved pipe to successfully salvage fallen objects in two passes. The successful practice is as follows: Under the big caliper accumulated experience, there is some reference.