濮城油田南区沙二上2+3砂层组油藏构造应力场演化与油气聚集  

Evolution of Tectonic Stress Field and Hydrocarbon Accumulation of E_(s2) upper2+3 Reservoirs in the South Region of Pucheng Oilfield

作　　者：安天下[1] 李红南[1] 于文文[1] 

机构地区：[1]中国石油大学(华东)地球资源与信息学院,青岛266555

出　　处：《科学技术与工程》2010年第29期7151-7155,共5页Science Technology and Engineering

摘　　要：以濮城油田南区沙二上2+3砂层组为例,用有限元法模拟了该区沙二期、东营期及现今期构造应力场。研究结果表明:平面上,应力低值区分布具明显规律性,主要受断裂分布控制,低应力值区与目前已证实和开发的油气藏富集区分布基本一致;垂向上,地质年代越新,地层埋深越浅,应力场强度降低。该应力场分布特征规律有利于油气自东向西运移,自深向浅运移或沿地层上倾方向运移,并在断层封闭部位聚集形成断块油藏。Based on the Es2upper2＋3 member of the south region of Pucheng oilfield,Es2 stage is simulated.Dongying stage and present tectonic stress field in this area with finite element method.Studies show that：in lateral direction,regularly distributing,low stress area is mainly controlled by fractures,and is consisitent with hydrocarbon-rich region,which is authenticated and developed;in vertical direction,as geological age gets younger,the layer is buried shallower,stress field intensity lower.That distributional characteristics is propitious to hydrocarbon migration from east to west,from deep to shallow or along the updip direction of the strata,and hydrocarbon accumulation in fault sealing region and forming fault block reservoir.

关 键 词：濮城油田南区 有限元 构造应力场 油气聚集 

分 类 号：TE155[石油与天然气工程—油气勘探]