文档介绍：【doc】 南襄盆地泌阳凹陷油气成藏作用及成藏模式
南襄盆地泌阳凹陷油气成藏作用及成藏模
式
第26卷第5期
l”-5天乞北
OIL&GASGEOLOGY2005年l0月
文章编号:0253—9985(2005)05—0668—06
南襄盆地泌阳凹陷油气成藏作用及成藏模式
秦伟军,林社卿,程哲,金晓辉,徐向华,朱又红
(,北京100083;,河南南阳473132)
摘要:南襄盆地泌阳凹陷发育有岩性,肯斜和断块3娄油气藏,对于自生自储型的岩性油气藏来讲,上翘尖灭砂体与鼻状
构造背景的构造等高线近于正交,形戎了大面积砂岩上翘尖灭或恻缘上翘尖灭岩性油气藏此类油气藏大体有3期油气
充注,但以中晚期充注为主背辛+由气箴油源为核桃园组二,三段烃源岩的混源,油气先后沿层状砂体向下二门背斜运侈
并聚集成葳廖庄组沉干口术期是古斜+岩性油藏形成期;上寺组沉帜求期的断裂j舌动改造了早期油气藏,并形成了新
的断昙+岩性油气藏北部斜坡因北东向,北西向断裂活动形成大小下等,形态备异的复杂断鼻,断块圈闭此类油气藏
『白泵凹向北作侧向运侈,廖庄组沉
藏的育制地区,北部斜坡带是断块油藏的有利地区.
关键词:成藏怍用;成藏模式;泌阳凹瞄;南襄盆地
中图分类号::A
Hydrocarbonaccumulationandreservoiringpattern
inBiyangdepression,Nanxiangbasin
,ChengZhe,JinXiaohui,XuXianghua,ZhuYouhong
(:tionResearchInstitute,;
),)’ong,Hen’n)
Abstract:Threetypesofreserxoii’,anticlinalandfaultblockoil/gasreservoirs,aredevel—
reservoiredindigenously,theupwai’pingpinch—outsandbodiesarenearlyp
erpendiculartothestructuralcontour
linesofnosesetting,leadingtotheformationoflargeareasandstoneupwarpingpinch—outorlateralmarginup—
warpingpinch—outlithologieoil/—
gingstages,withthenliddle—
linalreservoirweresourced
byboththe2ndand3rdmembel’sofHetaoyuanFmandsuccessivelymigrateddownwardalongthelayeredsand—
bodiesandaccumulatedinXia~l’—anticlinal+litholo
gicreservoirswereformedattheend
forniedoil/+lithologicoil/gasreservoirs,Complexfaulted
noseandfault—blocktrapswithVal’ioussizesandshapeshavebeenformedi