赵东F&1井是大港油田第一口对外反承包的四段制定向探井，是我国陆上迄今为止水平位移最大的定向井，共有4个靶点。
Zhaodong well F-1 is the first four-section directional exploration well in Dagang oilfield , so far its lateral displacement is the longest onshore in China .
赵东