库车前陆冲断带突发构造发育特点  

Development characteristics of pop-up structure in Kuqa foreland thrust belt,northern Tarim Basin,China

作　　者：冯许魁[1,2] 刘军 刘永雷 周红波[2,3] 谷永兴 许建华 

机构地区：[1]成都理工大学地球物理学院,成都610059 [2]中国石油集团东方地球物理公司,新疆库尔勒841001 [3]西安石油大学,西安710065

出　　处：《成都理工大学学报（自然科学版）》2015年第3期296-302,共7页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家科技重大专项(2011ZX05019-005)

摘　　要：探讨突发构造发育及成藏特点,为库车地区高效勘探提供依据。基于库车地区塑性地层沉积特征及区域构造发育特征的研究,明确了突发构造与叠瓦状构造具有密切的相关性,是叠瓦状构造进一步发育的结果。古隆起是控制突发构造发育的关键因素,当古隆起距推覆源位置较近时,在古隆起前缘发育破碎型突发构造;古隆起距推覆源较远时发育完整型突发构造。突发构造具有受盐体包裹、侧向封堵能力强、构造完整性好、裂缝发育程度高、对储层改造作用好的优势,其裂缝发育程度与构造发育程度正相关。突发构造为区域内最为有利的圈闭类型之一,是下一步勘探的首选类型。This paper investigates the development and the oil accumulation characteristics of a pop-up structure to provide the basis for the efficient exploration in the Kuqa area. Based on the plastic sedimentary characteristics and tectonic characteristics, the authors recognize that there is a close correlation between the pop-up structure and the imbricate structure. The pop-up structure is the result that the imbricate structure further grows. The palaeouplift is the key factor to control the development of the pop-up structure. When there is a short distance from the palaeouplift to mountains, the pop-up structure is broken in the front of palaeouplift. Conversely, when there is a long distance from the palaeouplift to mountains, the pop-up structure develops perfectly. The pop-up structure has the following advantages, that is, a good seal ability, good structural integrity, a high degree of fracture development, and a good reservoir reconstruction. The pop-up structure is one of the most favorable trap types in the area, and it is the preferred type of next exploration.

关 键 词：突发构造 叠瓦状构造 库车 古隆起 

分 类 号：P54[天文地球—构造地质学] TE122.321[天文地球—地质学]