Controlling Factors on Petroleum Accumulation in Silurian Reservoir in Tazhong Uplift of Tar im Basin
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摘要: 塔中隆起志留系中沥青及可动油气显示十分丰富。油气聚集的基本特征是多油气源、多成藏期、多油气藏类型、多油气产状。纵向上志留系油气分布受盖层控制,沥青和稠油分布在塔塔埃尔塔格组下段红色泥岩段以下,而现今可动油则集中分布在柯坪塔格组上二亚段灰色泥岩之下。平面上,志留系油气聚集受构造背景控制,继承性发育的古隆起决定各个时期油气运移指向,塔中地区油气基本上是自北西向南东方向运移。潮坪相沉积决定了薄砂层单个砂体规模不大,一系列砂体靠断层沟通。塔中地区志留系形成了油气丰度不高、在空间上叠置连片、大面积分布、受多种圈闭类型控制的油气聚集特征。Abstract: The asphalt, movable oil and gas shows are quite abundant in the Silurian reservoir in the Tazhong up lift.Hydrocarbon accumulations of the Silurian are characterized bymultip le sources of oil and gas, multip le stages of reservoir formation, multiple types of pools, and multiple occurrences of oil and gas. Vertically, hydrocarbon distributions of the Silurian are controlled by the cap beds. The asphalt and heavy oil of the Silurian are distributed under the red mudstone of the lower member of Tataaiertage Formation, while the movable oils are distributed under the gray mudstone of the second upper sub-member of Kep ingtage Formation. Hydrocarbon accumulations of the Silurian are plainly controlled by structural background, paleo-up lift of inherited development determines the migration directions of hydrocarbon, and hydrocarbon of the Tazhong area basicallymigrated from northwest to southeast. The single sand-stone body formed in tide environment is thin and its scale is small. A series of sandstone bodywere communicated by faults. The Silurian hydrocarbon accumulation of Tazhong area is characterized by no highness in abundance of hydro-carbon accumulation, coincidence of thin layerswith large distributive area, and control of several types of traps.
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[1] 1 刘大锰,金奎励,王凌志. 塔里木盆地志留系沥青砂岩的特性及其成因[J].现代地质,1999,(02):169-175.
2 刘洛夫,赵建章,张水昌. 塔里木盆地志留系沥青砂岩的形成期次及演化[J].沉积学报,2000,(03):475-479.
3 吕修祥. 塔里木盆地塔中低凸起志留系油气成藏机理初探[J].石油实验地质,1997,(04):328-331.
4 Lu Xiuxiang,Zhang Yiwei,Jin Zhijun. Genesis of the Silurian asphalt sandstones in Tazhong Uplift of Tarim Basin,NW China[J].Scientia Geologica Sinica,1997,(04):449-455.
5 张水昌,Moldowan J M,Maowen Li. 分子化石在寒武一前寒武纪地层中的异常分布及其生物学意义[J].中国科学D辑,2001,(04):299-304.
6 王飞宇,边立增,张水昌. 塔里木盆地奥陶系海相源岩中两类生烃母质[J].中国科学D辑,2001,(02):97-102.
7 肖中尧,张水昌,赵孟军. 简析塔中北斜坡A井志留系油气藏成藏期[J].沉积学报,1997,(02):150-154.
8 刘洛夫,赵建章,张水昌. 塔里木盆地志留系沉积构造及沥青砂岩的特征[J].石油学报,2001,(06):11-17.
9 李宇平,王勇,孙玉善. 塔里木盆地中部地区志留系油藏两期成藏特征[J].地质科学,2002,(zk):45-50.
10 刘邵平,钟广华,刘学锋. 塔中志留系碎屑岩储层特征及评价[J].江汉石油学院学报,1996,(04):21-25.
11 侯会军,王伟华,朱筱敏. 塔里木盆地塔中地区志留系沉积相模式探讨[J].沉积学报,1997,(03):41-47.
12 朱筱敏,王贵文,谢庆宾. 塔里木盆地志留系沉积体系及分布特征[J].石油大学学报(自然科学版),2002,(03):5-11.
13 王少依,张惠良,寿建峰. 塔中隆起北斜坡志留系储层特征及控制因素[J].成都理工大学学报(自然科学版),2004,(02):148-152.
14 贾承造. 塔里木盆地构造演化与油气[M].北京:石油工业出版社,1997.
15 蔡春芳. 塔里木盆地流体-岩石相互作用研究[M].北京:地质出版社,1997.
16 吕修祥,胡素云. 塔里木盆地油气藏形成与分布[M].北京:石油工业出版社,1998.
17 Xiao Xianming,Song Zhiguang,Liu Dehan. The Tazhong hybrid petroleum system,Tarim Basin,China[J].Marine and Petroleum Geology,2000.1-12.
18 陈元壮,刘洛夫,陈利新. 塔里木盆地塔中、塔北地区志留系古油藏的油气运移[J].地球科学-中国地质大学学报,2004,(04):473-482.
19 Liu Luofu,Kang Yongshang. Study on secondary migration of hydrocarbons in Tazhong Area of Tarim Basin in terms of carbazole compounds[J].Chinese Journal of Geochemistry,1999,(02):97-103.
20 吕修祥. 塔里木盆地不整合面石油运移的实验研究[J].石油大学学报(自然科学版),2000,(4):112-114.
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