南阳凹陷西部地区同沉积断裂与油气聚集  

Synsedimentary faults and hydrocarbon accumulation in the west of Nanyang sag

作　　者：罗曦[1] 罗家群[1] 杨云飞[1] 朱颜[1] 郑凯文[1] LUO Xi;LUO Jiaqun;YANG Yunfei;ZHU Yan;ZHENG Kaiwen(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Zhengzhou,Henan 450018,China)

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南郑州450018

出　　处：《石油地质与工程》2022年第3期20-26,共7页Petroleum Geology and Engineering

基　　金：中国石化科技部项目“南阳凹陷新领域油气成藏条件研究”(P15099)。

摘　　要：南阳凹陷西部地区是南阳凹陷近年来重要的储量接替领域,勘探早期已在东庄背斜上发现东庄油田,但是东赵庄、陈营地区研究较少,勘探程度较低。为厘清西部地区同沉积断裂对油气成藏的控制作用,拓展南阳凹陷勘探新领域,急需开展同沉积断层形成与演化、烃源岩与储层展布以及油气成藏控制作用的研究。通过南阳凹陷西部地区新三维地震资料的精细解释,新发现西部地区发育4条规模不等、呈雁列式展布的同沉积断层,这些同沉积断层对该区构造格局的形成和油气聚集分布有重要影响;同沉积断层的发育控制了优质烃源岩分布、优质储层展布,在不同时期对油气运移具有输导或封闭作用,位于南部的F_(1)断层对东庄背斜的形成起决定性作用。The western area of Nanyang sag is an important reserve replacement area in recent years.At present,Dongzhuang oilfield has been found in Dongzhuang anticline,but there is less research in Dongzhaozhuang and Chenying areas,and the degree of exploration is low.In order to clarify the control of synsedimentary faults on hydrocarbon accumulation in the west area and expand the new exploration field of Nanyang sag,it is urgent to study the formation and evolution of synsedimentary faults,the distribution of source rocks and reservoirs,and the control of hydrocarbon accumulation.Based on the fine interpretation of new 3D seismic data in the western part of Nanyang sag,four synsedimentary faults with different scales and echelon distribution are newly discovered,at the same time these synsedimentary faults have an important influence on the formation of structural framework and the distribution of oil and gas accumulation in the area.The development of synsedimentary faults controls the distribution of high-quality source rocks and high-quality reservoirs,and plays a role in transporting or sealing oil and gas migration in different periods.The F_(1) fault in the south plays a decisive role in the formation of Dongzhuang anticline.

关 键 词：南阳凹陷 同沉积断裂 油气分布 断层活动性 烃源岩分布 

分 类 号：TE112.23[石油与天然气工程—油气勘探]