准噶尔盆地南缘霍尔果斯背斜构造解析及有利区带预测

Analysis of Horgos anticline in southern margin of Junggar Basin and prediction of favorable zone

郑超 2 刘宜文³ 魏凌云³ 郑新梅³ 孙俏⁴ 李经辉⁵

长江大学油气资源与勘探技术教育部重点实验室，湖北 武汉 430100 长江大学地球物理与石油资源学院，湖北 武汉 430100 中国石油新疆油田分公司勘探开发研究院，新疆 乌鲁木齐 830013 中国石油集团测井有限公司国际事业部，北京 100101 中国地质大学能源学院，北京 100083

MOE Key Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University, Wuhan 430100, China School of Geophysics and Oil Resources, Yangtze University, Wuhan 430100, China Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Urumqi 830013, China International Business Department, Logging Company Ltd., CNPC, Beijing 100083, China School of Energy Resources, China University of Geosciences, Beijing 100083, China

结合最新油气勘探资料，以断层相关褶皱理论为基础，利用几何正演模拟技术，解析霍尔果斯背斜的构造特征以及成藏过程。研究认为，霍尔果斯背斜的形成与喜马拉雅运动三幕演化的过程对应，形成了深部为构造三角楔，浅层为逆冲推覆体的叠置组合；油气存在2期充注，第1期由反冲断裂活动造成白垩系低熟原油充注，第2期由浅层逆冲断裂活动造成白垩系成熟原油和侏罗系天然气混源充注；从霍尔果斯背斜的构造演化特征及其对油藏的控制来看，除了发现紫泥泉子组、沙湾组有油气显示外，东沟组下盘的圈闭也是霍尔果斯背斜的有利油气勘探区。

According to the latest oil and gas exploration data, the researchers use the geometric modeling technology to analyze the structural characteristics and accumulation process of Horgos anticline on the basis of fault-related fold theory. The research shows that the process of Himalayan movement in three acts formed Horgos anticline, which brought out a stacked combination: the triangular wedge tectonic in the deep site and overthrust body in the shallow. There are two oil and gas filling stages. The first stage is low mature oil filling in Cretaceous which was caused by recoil faulting; the second stage is the mixed Jurassic mature oil and Cretaceous gas filling which was caused by the shallow thrust faulting. In view of the tectonic evolution of the Horgos anticline and its reservoir control, Donggou Formation footwall traps are also the favorable oil and gas exploration areas of Horgos anticline besides Ziniquanzi and Shawan Formations.

10.6056/dkyqt201506003