• 责任者：Nie Minglong (Amu-Darya Gas Company ; PetroChina ; Beijing 100011 ; China) ; Wu Lei
• 刊名：Natural Gas Industry
• 出版年：2013
• 卷期：33(11)
• 关键词：构造演化 ; structural evolution ; 油气勘探 ; petroleum exploration ; 中亚 ; Central Asia
• 页码：p.45-50
• 图表：5 illus., 20 refs.
• 分类号：1003
• issnNo：ISSN1000-0976
• isbnNo：CN51-1179/TE

     Tectonic movement plays a key role in controlling hydrocarbon distribution of the Bieshikent Depression and its adjacent ar eas in the Amu-Darya Basin. However, a poor understanding of the genetic mechanism of structures impedes petroleum exploration there. Through structural interpretation with seismic data and regional balanced section analysis and in combination with drilling data and reservoir characteristics, this paper studied the tectonic evolution and its impacts on hydrocarbon distribution in the study area. The following conclusions were obtained. The tectonic deformation there are featured by the zonation of being strong in the east and weak in the west and layering above and below evaporate beds. The Permo-Triassic extensional tectonic movement led to the develop- ment of basement fault blocks and paleohighs, while the post-Paleogene, compressional tectonic movement led to the formation of Ji- saer folded uplift and Bieshikent foreland depression. The compressive stress field became weakened gradually from the Jisaer Moun- tain to the foreland depression, and had dextral compresso-shear characteristics. The compressive tectonic movement resulted in the formation of structural traps dominated by compressive anticlines, overthrust anticlines and fault noses in the Bieshikent Depression and Jisaer folded uplift zone. A large amount of tectoclases modified the carbonate reservoirs and destructed the seals in the northern part of the Jisaer folded uplift zone. On this basis, it is believed that exploration should focus on the faulted anticlinal traps in the Bieshikent Depression and Jisaer folded uplift zone, and that the modified paleohighs and the intersection areas of two-stage faults be most favorable for oil and gas exploration.