The old oil and gas regions are the main field increasing reserve and production during the past decade and the next decades in the United States.

老油气区是过去和将来几十年间美国油气增储上产的主要领域。

youdao

The type of oil and gas field in Liaohe basin is complicated and its reservoir is abundant which brings out difficult to excavating potential work for data of old well.

辽河盆地油气藏类型复杂，储集层类型丰富，给老井老资料挖潜工作带来难度。

youdao