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东明凹陷是华北坳陷区南部的新生代断陷盆地,地处中原,跨鲁、豫两省,北窄南宽,形如帚状,呈北北东向展布,面积约5000平方公里。凹陷东西两侧为鲁西隆起和内黄隆起,北接莘县凹陷,南以胙城—兰考凸起与中牟凹陷相隔。自1975年开展大规模石油普查勘探以来,八年间发现了文留、濮城、卫城、白庙、桥口等油气田,已经成为我国重要油气生产基地之一——中原油田。
The Dongming Sag is a Cenozoic rift basin in the southern part of the North China Depression. It is located in the Central Plains, Lulu and Yu provinces and its north is narrow and south wide. Its shape resembles a broom and exhibits a north-north eastward distribution with an area of about 5,000 square kilometers. The east and west sides of the depression are Luxi uplift and Neihuang uplift, the north of Shenxian depression and the south of Tancheng-Lankao uplift separated from the Zhongmu depression. Since 1975, a large-scale petroleum census exploration has been carried out. Eight oil and gas fields such as Wenliu, Pucheng, Acropolis, Baimiao and Qiaokou areas were discovered in eight years. It has become one of the important oil and gas production bases in China - Zhongyuan Oilfield.