摘要
吐哈盆地下组合已见到了油气显示异常,勘探潜力巨大。迪坎尔地区构造位于吐哈盆地台南下含油气系统南北双前陆前缘隆起的叠合部位,海西-燕山期古隆起背景有利于储层孔隙的发育和油气汇聚,是下含油气系统油气运聚的有利方向,也是鲁克沁古油藏后期调整运移的有利方向。台南凹陷残存有桃东沟群烃源岩,最大厚度400多米,也可能为迪坎尔构造提供低熟油气源。借鉴大庆、新疆和三塘湖火山岩油气勘探研究经验,采用非地震技术刻画火山岩分布,综合利用烃源岩、磁力二次导数、火山岩岩性、地震局部构造"四图"叠合对火山岩有利区带和有利目标进行分析和预测。迪坎尔地区碳酸盐岩储层也十分发育,预测迪卡尔1号构造圈闭可能形成构造-碳酸盐岩-火山岩复合型油气藏。
Unconventional activity of oil and gas occurs in the lower assemblage of Tuha basin, which indicated a high potential in exploration. Dikan＇ er structure is located on the superposition part of the front uplift of north - south double foreland of Tainan lower hydrocarbon system in Tuha basin. Hercynian - Yanshanian paleo - uplift is beneficial to the development of reservoir pore and the accumulation of oil and gas, which is the superiority orientation for the migration and accumulation of the lower hydrocarbon system, as well as for the late adjustment migration of Lukeqing paleo - reservoir. With the depth of more than 400 meters at the maximum, the residue hydrocarbon source rock of Taodonggou group in Tainan sag also can provide low - mature source to Dikan＇ er structure. According to the study experience of volcanic oil and gas exploration in Daqing, Xinjiang and Santanghu, using non - seismic technique describes the volcanic rock distribution. Volcanic favorable zones and targets are analyzed and predicted by comprehensive utilizing hydrocarbon source rock, quadratic - derivative of magnetism, lithologic character of volcanic and four seismic graphs folding of local structure. It is pointed that the carbonate rock reservoir developed very well in Dikan＇ er, and the Dikan＇ er No. 1 structure is likely to form the complex hydrocarbon reservoir of structure -carbonate rock -volcanic rock style.
出处
《吐哈油气》
2009年第1期26-29,共4页
Tuha Oil & Gas
关键词
火山岩
油气藏
勘探
volcanic rock
hydrocarbon reservoir
exploration
