岩性油气藏
巖性油氣藏
암성유기장
LITHOLOGIC RESERVOIRS
2012年
2期
37-41
,共5页
火山岩%烃源岩%储集层%盖层%油气藏类型%苏北探区
火山巖%烴源巖%儲集層%蓋層%油氣藏類型%囌北探區
화산암%경원암%저집층%개층%유기장류형%소북탐구
volcanic rocks%source rocks%reservoir%seal%reservoir types%Subei exploration area
苏北探区火山岩广泛发育,在横向和纵向上变化较快,成藏规律复杂多样,给油气勘探带来较大困难。通过分析烃源岩、储集层和盖层的匹配特征,并结合地震资料,研究了苏北探区火山岩与烃源岩和围岩的接触关系,同时对该区火山岩成藏模式进行了研究,总结了6种类型的火山岩油气藏成藏模式,包括烃源岩与火山岩间接接触型、烃源岩与火山岩直接接触型、火山岩被烃源岩包裹型、烃源岩与火山岩上下接触型（上下供烃）、火山通道顶部成藏型、岩墙隔挡型;并对古近系阜宁组和三垛组的火山岩油气藏进行了预测,归纳为3类火山岩油气藏,分别为生储关系为包裹接触型（近源型）、生储关系为上下型（近源型）及油气靠断裂运移（远源型）的油气藏。
囌北探區火山巖廣汎髮育,在橫嚮和縱嚮上變化較快,成藏規律複雜多樣,給油氣勘探帶來較大睏難。通過分析烴源巖、儲集層和蓋層的匹配特徵,併結閤地震資料,研究瞭囌北探區火山巖與烴源巖和圍巖的接觸關繫,同時對該區火山巖成藏模式進行瞭研究,總結瞭6種類型的火山巖油氣藏成藏模式,包括烴源巖與火山巖間接接觸型、烴源巖與火山巖直接接觸型、火山巖被烴源巖包裹型、烴源巖與火山巖上下接觸型（上下供烴）、火山通道頂部成藏型、巖牆隔擋型;併對古近繫阜寧組和三垛組的火山巖油氣藏進行瞭預測,歸納為3類火山巖油氣藏,分彆為生儲關繫為包裹接觸型（近源型）、生儲關繫為上下型（近源型）及油氣靠斷裂運移（遠源型）的油氣藏。
소북탐구화산암엄범발육,재횡향화종향상변화교쾌,성장규률복잡다양,급유기감탐대래교대곤난。통과분석경원암、저집층화개층적필배특정,병결합지진자료,연구료소북탐구화산암여경원암화위암적접촉관계,동시대해구화산암성장모식진행료연구,총결료6충류형적화산암유기장성장모식,포괄경원암여화산암간접접촉형、경원암여화산암직접접촉형、화산암피경원암포과형、경원암여화산암상하접촉형（상하공경）、화산통도정부성장형、암장격당형;병대고근계부저조화삼타조적화산암유기장진행료예측,귀납위3류화산암유기장,분별위생저관계위포과접촉형（근원형）、생저관계위상하형（근원형）급유기고단렬운이（원원형）적유기장。
Being widely developed in Subei exploration area,volcanic rocks are characterized by fast lateral and vertical change,complicated accumulation rule,which causes great difficulties for oil and gas exploration.By analyzing source rocks,matching characteristics of reservoir and cap rock,combining with seismic data,this paper studied the contact relationship of volcanic and source rocks,and studied the volcanic reservoir accumulation model.There are six types of reservoir accumulation model,including indirect contact of source rocks and volcanic rocks,direct contact of source rocks and volcanic rocks,volcanic rocks enwrapped by the source rocks,source rocks developed on and below the volcanic rocks,volcanic reservoir developed on the top of volcanic conduit and volcanic rocks acted as seal.These reservoir accumulation models were used to predict the volcanic reservoir at the Funing and Sanduo formations in Eogene.Totally,they can be summed up to three types of volcanic reservoir,including the relationship of source and reservoir represents as enwrapping（near source rocks）,the relationship of source and reservoir shows as up and down（near source rocks）,and faults act as the main hydrocarbon migration path.
