石油实验地质
石油實驗地質
석유실험지질
EXPERIMENTAL PETROLEUM GEOLOGY
2014年
1期
25-32
,共8页
隐蔽油气藏类型%成藏特点%有利勘探区带%准噶尔盆地
隱蔽油氣藏類型%成藏特點%有利勘探區帶%準噶爾盆地
은폐유기장류형%성장특점%유리감탐구대%준갈이분지
subtle reservoir type%accumulation characteristics%favorable exploration belt%Junggar Basin
针对准噶尔盆地隐蔽油气藏勘探潜力巨大但成藏规律非常复杂的情况，在回顾其隐蔽油气藏勘探历程基础上，把已发现的隐蔽油气藏划分为岩性类、地层类、复合类和（准）连续型4大类及17个亚类。其成藏特点为：多沉积体系控制；多圈闭类型展布、构造-岩性-地层复合；多层系含油气；多期充注、多期成藏；多成藏组合型式。隐蔽油气藏有利勘探区带为盆地西缘车排子斜坡带沙湾组成藏组合、车-莫古隆起周缘侏罗系成藏组合、准噶尔盆地石炭系成藏组合和北天山山前坳陷深层致密砂岩侏罗系成藏组合。
針對準噶爾盆地隱蔽油氣藏勘探潛力巨大但成藏規律非常複雜的情況，在迴顧其隱蔽油氣藏勘探歷程基礎上，把已髮現的隱蔽油氣藏劃分為巖性類、地層類、複閤類和（準）連續型4大類及17箇亞類。其成藏特點為：多沉積體繫控製；多圈閉類型展佈、構造-巖性-地層複閤；多層繫含油氣；多期充註、多期成藏；多成藏組閤型式。隱蔽油氣藏有利勘探區帶為盆地西緣車排子斜坡帶沙灣組成藏組閤、車-莫古隆起週緣侏囉繫成藏組閤、準噶爾盆地石炭繫成藏組閤和北天山山前坳陷深層緻密砂巖侏囉繫成藏組閤。
침대준갈이분지은폐유기장감탐잠력거대단성장규률비상복잡적정황，재회고기은폐유기장감탐역정기출상，파이발현적은폐유기장화분위암성류、지층류、복합류화（준）련속형4대류급17개아류。기성장특점위：다침적체계공제；다권폐류형전포、구조-암성-지층복합；다층계함유기；다기충주、다기성장；다성장조합형식。은폐유기장유리감탐구대위분지서연차배자사파대사만조성장조합、차-막고륭기주연주라계성장조합、준갈이분지석탄계성장조합화북천산산전요함심층치밀사암주라계성장조합。
According to the great potential and complicated accumulation rules of subtle reservoirs in the Junggar Basin, we divided the discovered subtle reservoirs in the study area into 4 types ( lithologic, stratigraphic, com-plex and quasi-continuous ones) and 17 subtypes based on previous exploration experiences. The accumulation characteristics were concluded as followed:the control of multiple sedimentary systems;the occurrence of multi-ple trap types and the combination of structural-lithologic-stratigraphic traps;multiple hydrocarbon bearing lay-ers;multiple stages of hydrocarbon charging and accumulation;multiple oil and gas plays. The favorable explora-tion belts of subtle reservoirs include the Shawan Formation in the Chepaizi slope in the western margin of the ba-sin, the Jurassic around the Che-Mo paleo-uplift, the Carboniferous in the Junggar Basin, and the Jurassic tight sandstones in the piedmont depression of the North Tianshan.
