HYDROCARBON ACCUMULATION PROCESS IN SOUTH STEEP SLOPE, BIYANG SAG, NANXIANG BASIN
-
摘要: 烃源岩及构造演化历史控制了南襄盆地泌阳凹陷南部陡坡带油气的成藏与演化。古近系核桃园组核二段沉积时期—核一段沉积末期,油气小规模充注,形成早期古油藏;廖庄组沉积末期,构造抬升,油气大规模充注,形成中期南部陡坡油气聚集带,是南部陡坡带核三段原生油气藏的主要成藏期;新近系凤凰镇组沉积末期,晚喜马拉雅期构造运动导致部分早、中期古油藏遭受破坏与调整,是形成浅层次生油气藏的时期。总体而言,早、中期隆起背景控制南部陡坡带的油气富集,晚期构造调整决定南部陡坡带的油气分布。南部陡坡带浅层系发育的小规模隆起构造、大型隆起构造翼部发育的岩性圈闭及基岩裂缝型圈闭,是下一步油气勘探值得重视的目标。Abstract: Evolution history of hydrocarbon source rocks and tectonics dominates hydrocarbon accumulation in the south steep slope of the Biyang Sag,the Nanxiang Basin.In the slope,early paleo-reservoirs are formed by small-scale hydrocarbon charging during the late Eh1-Eh2 of Paleogene.The middle key reservoirs of Eh3 are formed by relatively larger volume of hydrocarbon charging during the late El uplifting stage of early Paleogene.The shallow secondary oil and gas reservoirs are formed by destruction and redistribution of paleo-reservoirs due to late Himalayan tectonic movement at late Neogene.In ge-neral,it is the early and middle uplifts during late Eh1-Eh2 of Paleogene which control oil and gas accumulation in the south steep slope,while the structural adjustment in the late stage dominates the pre-sent distribution of oil and gas.The small-sized uplifts developed in shallow formations,the lithologic traps developed in flanks of large-sized uplifts as well as the fracture traps developed in bedrock are important targets for future exploration.
-
[1] 王定一,车自成,张树田,等.南襄盆地构造发育特征及形成机制[J].石油与天然气地质,1987,8(4):22-25. [2] 温志新,王红漫,陈春强,等.南襄盆地泌阳凹陷南部陡坡带隐蔽油气藏形成与分布[J].石油实验地质,2006,28(2):117-122. [3] 邱荣华,付代国,万力.泌阳凹陷南部陡坡带油气勘探实例分析[J].石油与天然气地质,2007,28(5):605-609. [4] 邱荣华,林社卿,涂阳发.泌阳凹陷油气成藏特征及勘探潜力分析[J].石油天然气学报,2005,27(2):158-161. [5] 林社卿,杨道庆,夏东领.双河油田地球化学特征及成藏意义[J].石油天然气学报,2005,27(2):162-165. [6] 王敏,秦伟军,赵追,等.南襄盆地泌阳凹陷油气藏形成条件及聚集规律[J].石油与天然气地质,2001,22(2):169-172. [7] 谢晓军,盛湘.泌阳凹陷油源对比及油气运移初探[J].天然气地球科学,2001,12(6):23-26. [8] 张永华,田小敏,罗家群.泌阳凹陷隐蔽油气藏分布特征与勘探方法[J].油气地质与采收率,2001,8(3):28-30. [9] 夏东领,杨道庆,林社卿,等.南襄盆地中、新生代构造演化与油气成藏[J].油气地质与采收率,2007,14(6):32-34. [10] 李海华.南襄盆地泌阳凹陷层序地层学与隐蔽油气藏研究[J].石油实验地质,2008,30(1):47-51. [11] 谢晓军,盛湘.泌阳凹陷油气展布及运移特征[J].天然气地球科学,2003,14(2):130-133. [12] 郑求根,孙家振,江勇,等.泌阳凹陷油气成藏动力学特征[J].天然气工业,2003,23(4):126-128. [13] 秦伟军,林社卿,程哲,等.南襄盆地泌阳凹陷油气成藏作用及成藏模式[J].石油与天然气地质,2005,26(5):668-673. [14] 邱荣华,田小敏,付代国,等.泌阳富油凹陷油气深化勘探实践与认识[J].石油天然气学报,2007,29(2):42-44. [15] 王春江,涂阳发,王正文,等.泌阳凹陷下第三系成烃研究[R].南阳:河南油田分公司石油勘探开发研究院,2003. [16] 夏东领,林社卿,全书进,等.泌阳凹陷南部陡坡带隐蔽油气藏形成条件与勘探技术[J].石油天然气学报,2007,29(5):63-65. [17] 陈文礼,林社卿,杨道庆,等.泌阳凹陷下二门油田构造特征与油气聚集[J].石油实验地质,2003,25(2):174-177. [18] 尹伟,吴胜和,孙琦,等.泌阳凹陷下二门油田油气成藏机制探讨[J].矿物岩石地球化学通报,2006,25(1):75-81. [19] 杨道庆,陆建林.泌阳凹陷新生代构造演化及其形成机制[J].石油天然气学报,2005,27(4):416-419. [20] 王子煜,漆家福,张永华.泌阳凹陷新生代构造特征与形成机制及其与油气成藏的关系[J].地质学报,2004,78(3):332-344. -
计量
- 文章访问数: 1489
- HTML全文浏览量: 64
- PDF下载量: 983
- 被引次数: 0