地质论评
地質論評
지질론평
GEOLOGICAL REVIEW
2015年
3期
621-633
,共13页
刘卫民%陶柯宇%高秀伟%王明%阿不都外里·热西提%曹剑
劉衛民%陶柯宇%高秀偉%王明%阿不都外裏·熱西提%曹劍
류위민%도가우%고수위%왕명%아불도외리·열서제%조검
油气运聚%成藏模式%输导体系%油藏地球化学%准噶尔盆地
油氣運聚%成藏模式%輸導體繫%油藏地毬化學%準噶爾盆地
유기운취%성장모식%수도체계%유장지구화학%준갈이분지
hydrocarbon migration and accumulation%hydrocarbon accumulation model%network of hydrocarbon migration pathways%reservoir geochemistry%Junggar Basin
含油气盆地油气远距离(>100 km)运移成藏是一种重要的石油地质现象,改变了关于油气运聚通常需要近源的传统认识,故虽然比较少见、实例不多、研究较少,但对于拓展勘探领域却具有重要意义。因此为给勘探应用和基础理论研究提供参考,总结了这一比较少见且有些特殊油气地质现象的基本特征,重点是成藏模式与主控因素,并评述了有待深化的科学问题。结果表明,主要依据通道,可将成藏模式归纳为输导层—不整合和输导层—断层—不整合成藏两种;成藏主控因素有多个,包括古隆起或斜坡稳定发育作为背景、油气源充足作为基础、输导通道优质作为条件、保存良好作为关键;因此具体到某一含油气盆地,若存在这些有利成藏条件,即便是距离源区较远的圈闭,也不是勘探禁区,可以形成商业性油气藏;下步工作中有待深化的研究内容包括油气源对比与油气远距离运聚的确认、断裂和不整合的作用、原生和次生成藏、运聚动力等。油气的远距离运移成藏值得加以更多的勘探和研究重视。
含油氣盆地油氣遠距離(>100 km)運移成藏是一種重要的石油地質現象,改變瞭關于油氣運聚通常需要近源的傳統認識,故雖然比較少見、實例不多、研究較少,但對于拓展勘探領域卻具有重要意義。因此為給勘探應用和基礎理論研究提供參攷,總結瞭這一比較少見且有些特殊油氣地質現象的基本特徵,重點是成藏模式與主控因素,併評述瞭有待深化的科學問題。結果錶明,主要依據通道,可將成藏模式歸納為輸導層—不整閤和輸導層—斷層—不整閤成藏兩種;成藏主控因素有多箇,包括古隆起或斜坡穩定髮育作為揹景、油氣源充足作為基礎、輸導通道優質作為條件、保存良好作為關鍵;因此具體到某一含油氣盆地,若存在這些有利成藏條件,即便是距離源區較遠的圈閉,也不是勘探禁區,可以形成商業性油氣藏;下步工作中有待深化的研究內容包括油氣源對比與油氣遠距離運聚的確認、斷裂和不整閤的作用、原生和次生成藏、運聚動力等。油氣的遠距離運移成藏值得加以更多的勘探和研究重視。
함유기분지유기원거리(>100 km)운이성장시일충중요적석유지질현상,개변료관우유기운취통상수요근원적전통인식,고수연비교소견、실례불다、연구교소,단대우탁전감탐영역각구유중요의의。인차위급감탐응용화기출이론연구제공삼고,총결료저일비교소견차유사특수유기지질현상적기본특정,중점시성장모식여주공인소,병평술료유대심화적과학문제。결과표명,주요의거통도,가장성장모식귀납위수도층—불정합화수도층—단층—불정합성장량충;성장주공인소유다개,포괄고륭기혹사파은정발육작위배경、유기원충족작위기출、수도통도우질작위조건、보존량호작위관건;인차구체도모일함유기분지,약존재저사유리성장조건,즉편시거리원구교원적권폐,야불시감탐금구,가이형성상업성유기장;하보공작중유대심화적연구내용포괄유기원대비여유기원거리운취적학인、단렬화불정합적작용、원생화차생성장、운취동력등。유기적원거리운이성장치득가이경다적감탐화연구중시。
Long-distance (>100km) hydrocarbon migration and accumulation is an important type of petroleum geological phenomenon,which has changed the traditional thought that hydrocarbon accumulation is often source-controlled and thus can only be sited near the source areas.It expands the petroleum exploration areas,but such cases are rare,implying the complexity of this phenomenon.To better understand this phenomenon,here we conduct a review on the basic features of this special petroleum geological phenomenon,with the focus on the accumulation model and main controls,and suggest the scientific issues which need to be further studied.The results show that the long-distance hydrocarbon migration and accumulation model can be classified to two main types in terms of conduits,including carrier bed—unconformity and carrier bed—fault—unconformity.The long-distance hydrocarbon migration and accumulation needs several necessary fundamental conditions and is controlled by many factors,e.g.,a steady development of paleo-uplift or slope being the background,a sufficient petroleum source being the foundation,a high-quality migration pathway network being the condition,and a good preservation being the key.If a petroliferous basin has these necessary conditions,long-distance hydrocarbon migration and accumulation can take place,and favorable traps even with relatively long distance from the source kitchens can not be neglected with the possibility of forming commercial accumulations.The scientific issues to be solved include the application of oil-source correlation in verifying the migration distance and the identification of long-distance,the impacts of fault,the primary and secondary hydrocarbon migration and accumulation,and the migration driving force.The long-distance hydrocarbon migration and accumulation deserves enough exploration and research attention.