八面河地区新生代构造变形与孔店组油气成藏

八面河地区为一受基底控制的继承性发育的单向斜坡，是在NNE-SSW向和NW-SE向区域引张作用及NE向的右旋走滑作用叠合背景下逐渐形成的， 具有NW-SE向和NNE向的双向伸展及右旋走滑变形的基本特点，东营运动基本形成现今的构造格局，多期构造演变形成了构造、地层尖灭、岩性、古潜山等几种类型的圈闭，油气以断裂、不整合面为主要运移通道来自北部牛庄凹陷的Ek、Es₄及AnE生油层，中央鼻状构造带及其北西地区成藏条件较好，是油气有利聚集区带，建议作为下一步重点勘探区域。

CENOZOIC TECTONIZATION AND HYDROCARBON RESERVOIRING OF KONGDIAN FORMATION IN BAMIANHE REGION

Structure in Bamianhe region, an inherited single slope controlled by the basement, has been gradually formed by the combined action of NNE-SSW and NW-SE regional extensions and NE dextral strike-slip movement. It has the basic characteristics of NW-SE and NNE duplex extension and dextral strike-slip deformation. The current structural framework has basically been finalized after Dongying movement. Multiphase tectonic evolutions have generated several types of traps, such as structural traps, stratigraphic pinch out traps, lithologic traps, and fossil buried hill traps. Hydrocarbons sourced from the Ek, Es_4 and AnE in the northern Niuzhuang sag might have migrated along the main pathways such as fractures and unconformities. The central nose-like structural belt and the area to its northwest have relatively good reservoiring conditions and are favorable for oil and gas accumulation, thus can be selected as the key prospects for future exploration.