DEPOSITIONAL SYSTEM OF THE THIRD MEMBER OF THE SHAHEJIE FORMATION IN LENGJIA OILFIELD OF THE LIAOHE BASIN
-
摘要: 利用地震相分析技术,结合岩心等资料研究了冷家油田沙三段沉积体系平面分布特征。根据冷家油田沙三段地震反射样式,可划分为斜坡、台地、凹地3种类型,共16种地震相。在圈定扇三角洲前缘和前扇三角洲相带的基础上,发现并圈定了滑塌沉积、湖心岛、砂坝、纵向扇、斜坡前积复合体、坡底扇、盆底扇、障壁体系等一系列单元。该区北部形成纵向三角洲,东部形成扇三角洲,西部形成斜坡前积复合体。Abstract: With seismic facies analysis and core data, distribution of depositional system of the 3rd Member of the Shahejie Formation in Lengjia oilfield of the Liaohe Basin, is studied. According to seismic reflection structure, it can be divided into 3 types: slope, plat form and depressed area, including 16 seismic facies. Based on fan-delta front and pro-fan delta, slump deposition, island in the center of lake, sand bank, longitudinal fan, slope progradation complex, slope fan, sublacustrine fan and barrier system are found. Longitudinal delta is developed in the north, fan-delta in the east, and slope progradation complex in the west.
-
[1] 李应暹. 辽河裂谷渐新世初期的扇三角洲[J]. 石油勘探与开发,1995, 22(4): 53~60 [2] 陈振岩. 辽河盆地新生代断裂与油气关系[J]. 石油实验地质,2002, 24(5): 407~412 [3] 丘东洲. 陆盆扇体沉积的形成机制及其油气意义[A]. 见: 第十四届国际沉积学会议论文集. 北京:石油工业出版社,1990. 235~243 [4] 陈景达. 块断运动与隐蔽圈闭——以辽河西部凹陷为例[J]. 石油实验地质,1982, 4(4): 254~260 [5] 董春梅. 储集砂砾岩体成因、分布规律及形成条件探讨——以辽河西部凹陷高升油田高二、三区为例[J]. 石油实验地质,1996, 18(3): 289~299 [6] 赵霞飞. 动力沉积学与陆相沉积[M]. 北京: 科学出版社,1992. 200~220 [7] 徐怀大. 地震地层学解释基础[M]. 北京: 中国地质大学出版社,1990. 135~178 [8] Weimer P. Siliciclastic Sequence Stratigraphy:Recent Developments and Applications[M]. Tulsa: AAPG,1979. 337~350 -
计量
- 文章访问数: 717
- HTML全文浏览量: 63
- PDF下载量: 390
- 被引次数: 0