Shuanghe oilfield is not only a million-ton scale oilfield which has been earlier put into production in the Biyang Depression but also one of high-effectively developed onshore oilfields in China.

• 双河油田是泌阳凹陷较早投入开发的百万吨级油田,也是我国高效开发的陆上油田之一,现已进入特高含水产量递减采油阶段。