反转背斜构造自生自储油藏成藏模式

对辽河盆地黄金带地区构造特征、构造发育史及沉积特征进行了研究,对其成藏模式进行了分析.该区为一典型的反转背斜构造,其下部为向斜构造,上部为背斜构造;下部生成油气,上、下均可储存油气;早期以岩性圈闭为主,晚期构造及岩性圈闭均较发育.在该类地区中、浅层有丰富的油气资源,其深层也拥有丰富的油气资源,是深化勘探的重要目标.根据其成藏模式,在该区沙三下段部署了井位,经钻探取得了很好的勘探效果.

Forming pattern of self-generating and self-preserving reservoirs in reversal anticline structure

The forming pattern of the reservoirs in Huangjindai area of Liaohe Basin was analyzed on the basis of structure property, structural history and sedimentary feature of this area. The result shows that this area is a typical reversal anticline structure with a syncline in the lower section and an anticline in the upper section. Oil and gas were generated in the lower Section and preserved in both upper and lower sections. The lithologic traps were dominated in the early period, and both the structural and lithologic traps were developed in the later period. Rich oil and gas resources were discovered in shallow formation and also found in deep formation. According to this pattern, some oil well locations were placed in lower section of the third member of Shahejie Formation in this area. The excellent exploration result has been achieved.