CAJ | 학술논문

直罗油田位于陕北斜坡中南部，是含油气盆地中勘探程度较低的区域。该区域主要为东西走向的大型单斜。研究区构造简单，局部存在鼻隆构造，有利于油气的富集。对研究区延长组长8段油藏特征进行深入全面的研究，研究区长8油层组主要为前缘三角洲沉积体系，物源来自于东北方向。岩石学特征研究显示其成分主要由长石，石英和岩屑构成，其中长石含量最高。研究区容易形成岩性油藏。
직라유전위우협북사파중남부，시함유기분지중감탐정도교저적구역。해구역주요위동서주향적대형단사。연구구구조간단，국부존재비륭구조，유리우유기적부집。대연구구연장조장8단유장특정진행심입전면적연구，연구구장8유층조주요위전연삼각주침적체계，물원래자우동북방향。암석학특정연구현시기성분주요유장석，석영화암설구성，기중장석함량최고。연구구용역형성암성유장。
Located in the central-southern of slopes in northern Shaanxi, Zhiluo oilfield hasn’ t been exploited so much. Spotted with nose-shaped uplifts, the simple structure of east-west trending oblique benefits oil and gas accumulation. The research on Chang 8 reservoir, which belongs to Yanchang Formation, shows that the provenance is from the northeast and is a pro-deltaic depositional system. Moreover, rocks in the studied reservoir mainly are feldspar, quartz and debris, among which feldspar is the most common one. Findings indicate that it is easy to form lithologic oil reservoir in the studied area.