霸县凹陷文安斜坡带构造圈闭及构造油气藏  

THE STRUCTURAL TRAPS AND OIL-GAS ACCUMULATIONS ON WEN' AN SLOPE OF BAXIAN SAG

作　　者：胡望水[1] 何瑶瑶[1] 李涛[1] 龙小军[1] 周从业[1] 

机构地区：[1]油气资源与勘探技术教育部重点实验室长江大学,湖北荆州434023

出　　处：《海洋地质动态》2010年第11期24-30,共7页Marine Geology Letters

基　　金：国家自然科学基金项目(40872099)

摘　　要：通过分析文安斜坡地质资料和大量高质量三维地震资料发现该区构造圈闭以断块圈闭和断鼻圈闭为主。圈闭的形成与发育受构造运动控制。孔店组—沙四段,燕山晚期构造运动对研究区圈闭的发育起重要的控制作用;沙三段—沙一段,喜马拉雅Ⅰ幕构造运动对圈闭的定型起主要作用;第四纪后,构造运动基本停止,圈闭不发育。构造圈闭主要形成于沙三段—沙二段沉积期的史各庄—苏桥垒堑式断裂构造带。构造油气藏有断块、断鼻、背斜、断背斜油气藏4类。孔店组—沙四段沉积期和沙三段—沙二段沉积期形成的圈闭最有利于成藏。冀中坳陷古生界构造油气藏的勘探应集中于新近纪形成的史各庄—苏桥构造带的中、西部和赵各庄—左各庄构造带中部的断块圈闭和断鼻圈闭。Fault-blocks and fault-nose traps could be easily seen on the Wen＇an slope of Baxian Sag. The formation and development of traps were controlled by tectonic movement. From the Kongdian Formation to the forth segment of the Shahejie Formation, the Jizhong sag were influenced by the late Yanshan movement. The shape of traps was controlled by the movement in the beginning of deformation of the basin. From the third segment to the first segment of the Shahejie Formation, Himalayan I movement dominated the formation of traps. In Quaternary, strong tectonic movement stopped, and no influence on traps could be seen. In conclusion, structural traps in the study area were mainly formed during the third to the first stage of the Shahejie Formation in Shigezhuang Suqiao horst and graben fault zone. Structural reservoirs are divided into 4 types, namely, the fault block reservoirs,broken nose reservoirs, anticline reservoirs, broken anticline reservoirs. The traps formed in the Kongdian Formation to the forth, third and second segment of the Shanhejie Formation were the most favorable reservoirs to oil accumulation. Hydrocarbon exploration on Wen＇an slope of the Baxian Sag should be focused more on fault block traps and broken nose traps formed during Late Tertiary in the middle and west part of Shigezhuang-Suqiao horst and graben fault zone and in the middle and west part of Zhaogezhuang-Zuogezhuang horst and graben fault zone.

关 键 词：霸县凹陷 文安斜坡 构造圈闭 构造油气藏 

分 类 号：TE122.3[石油与天然气工程—油气勘探]