舞阳凹陷古近系低熟—未熟油气系统特征  

Palaeogene immature petroleum system in the Wuyang Sag, Zhoukou Depression

作　　者：孔凡军[1] 李永林[2] 

机构地区：[1]中国地质大学(北京) [2]中国石化河南油田石油勘探开发研究院

出　　处：《石油勘探与开发》2004年第3期59-60,68,共3页Petroleum Exploration and Development

摘　　要：舞阳凹陷古近系盐湖相烃源岩处于低熟—未熟演化阶段,具有高丰度、高产烃率的特点,储集层为中孔、中—高渗砂岩,厚层的盐岩及泥岩形成良好的封盖条件。其含油气系统具有早圈闭、晚生烃、晚成藏的特点。油气纵向上分布于核桃园组核二段—核一段,平面上分布于南部斜坡带和北部陡坡带,尚张和段庄区块是有利的勘探区。The Palaeogene source rock developed in a salt lake in the Wuyang Sag is at an immature stage with rich TOC and high hydrocarbon generation, and sandstone is of middle-high porosity and permeability and favorable sealing ability. The petroleum system is of early trap and late hydrocarbon generation and accumulation. Oil and gas distribute vertically in He-2 and He-1 Member of the Hetaoyuan Formation and horizontally in the south slope zone and the north steep slope zone. Shangzhang and Duanzhuang Block should be the most favorable play targets in the sag.

关 键 词：舞阳凹陷 低熟-未熟油 含油气系统 古近系 

分 类 号：TE122.1[石油与天然气工程—油气勘探]