吉林大学学报(地球科学版)
吉林大學學報(地毬科學版)
길림대학학보(지구과학판)
Journal of Jilin University (Earth Science Edition)
2015年
5期
1269-1277
,共9页
冯方%王晓杰%吕本勋%吴小斌%李海燕
馮方%王曉傑%呂本勛%吳小斌%李海燕
풍방%왕효걸%려본훈%오소빈%리해연
亚诺斯前陆盆地%成藏规律%断层遮挡%断层侧向封堵%成藏模式
亞諾斯前陸盆地%成藏規律%斷層遮擋%斷層側嚮封堵%成藏模式
아낙사전륙분지%성장규률%단층차당%단층측향봉도%성장모식
LIanos foreland basin%oil and gas pool-forming law%fault sheltertd%fault lateral sealing%reservoir model
MM 油田位于南美洲哥伦比亚境内亚诺斯前陆盆地东部斜坡带,远离西部烃源灶,以微幅度、小规模岩性构造油藏为主。本文通过研究亚诺斯盆地构造演化史并充分结合研究区地质、测井、地震等资料,总结出 MM 油田具有“远源复合输导,断层遮挡式成藏”的油气成藏规律,油气远源输导控制油藏丰度,构造位置控制油气聚集,断层侧向封闭控制油藏分布,圈闭大小及储层物性条件直接影响油藏规模。在研究区,卡沃内拉组 C7段储层为油气侧向运移主要载体,断层为油气垂向运移主要通道,断层断距与盖层厚度之间的匹配关系及圈闭条件共同控制 MM 油田成藏模式,形成了断鼻、岩性断层及断层岩性等3种油藏类型。
MM 油田位于南美洲哥倫比亞境內亞諾斯前陸盆地東部斜坡帶,遠離西部烴源竈,以微幅度、小規模巖性構造油藏為主。本文通過研究亞諾斯盆地構造縯化史併充分結閤研究區地質、測井、地震等資料,總結齣 MM 油田具有“遠源複閤輸導,斷層遮擋式成藏”的油氣成藏規律,油氣遠源輸導控製油藏豐度,構造位置控製油氣聚集,斷層側嚮封閉控製油藏分佈,圈閉大小及儲層物性條件直接影響油藏規模。在研究區,卡沃內拉組 C7段儲層為油氣側嚮運移主要載體,斷層為油氣垂嚮運移主要通道,斷層斷距與蓋層厚度之間的匹配關繫及圈閉條件共同控製 MM 油田成藏模式,形成瞭斷鼻、巖性斷層及斷層巖性等3種油藏類型。
MM 유전위우남미주가륜비아경내아낙사전륙분지동부사파대,원리서부경원조,이미폭도、소규모암성구조유장위주。본문통과연구아낙사분지구조연화사병충분결합연구구지질、측정、지진등자료,총결출 MM 유전구유“원원복합수도,단층차당식성장”적유기성장규률,유기원원수도공제유장봉도,구조위치공제유기취집,단층측향봉폐공제유장분포,권폐대소급저층물성조건직접영향유장규모。재연구구,잡옥내랍조 C7단저층위유기측향운이주요재체,단층위유기수향운이주요통도,단층단거여개층후도지간적필배관계급권폐조건공동공제 MM 유전성장모식,형성료단비、암성단층급단층암성등3충유장류형。
The MM oilfield is located in the eastern slope of LIanos foreland basin in Colombia , South America .It is made up of many micro amplitude ,small scale lithologic‐structural reservoirs far away from the western hydrocarbon source .A comprehensive analysis is conducted for the history of tectonic evolution of LIanos basin with full integration of geological logging and seismic data . The results show that the oil and gas pool was formed through “hydrocarbon migrated long distance through a complex transport system and accumulated by faults sheltered” .The long distance transport system controls abundance of reservoirs ,and lateral sealing faults control oil and gas distribution ,while the size of trap and reservoir physical properties directly affect the reservoir scale .In the study area ,for the hydrocarbon migration ,the C7 formation of Carbonera group is the main lateral passage ,and the faults are vertical passages .The matching relationship between the fault throw and the thickness of cap rock as well as the trap conditions jointly control MM oilfield reservoir model ,fault nose ,lithologic‐fault ,and fault‐lithologic reservoir types .