新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (4): 333-337.

• 油气勘探 •    下一篇

塔里木盆地构造枢纽带及其油气成藏条件

汪伟光1, 吕修祥2, 喻莲1, 成克男3   

  1. 1.中国石油勘探开发研究院,北京 100083;
    2.中国石油大学,北京 102249;
    3.中油测井技术服务有限责任公司,北京 100083
  • 收稿日期:2010-10-18 出版日期:2011-08-01 发布日期:2020-08-19
  • 作者简介:汪伟光（1985-）,男,湖北应城人,在读博士研究生,石油地质,（E-mail）annior1985@sina.com.
  • 基金资助:
    国家973 项目（2005CB422108）

Structural Pivot Zone and Its Oil-Gas Accumulation Conditions in Tarim Basin

WANG Wei-guang1, LV Xiu-xiang2, YU Lian1, CHENG Ke-nan3   

  1. 1. Reseach Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
    2. China University of Petroleum, Beijing 102249, China;
    3. China National Logging Corporation, Beijing 100083, China
  • Received:2010-10-18 Online:2011-08-01 Published:2020-08-19

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摘要： 塔里木盆地经历了多期差异升降运动和周缘造山作用,形成了一系列构造枢纽带。枢纽带的形成与隆起、斜坡的形成演化密切相关。根据枢纽带的形成特点及其发育部位的不同,将其分为3类：隆起翘倾型枢纽带、斜坡反转型枢纽带和斜坡-隆起复合型枢纽带。塔里木盆地构造枢纽带油气成藏条件优越：枢纽带邻近烃源区,碳酸盐岩岩溶、风化壳、礁滩型储集层发育,圈闭以潜山、构造-岩性圈闭为主。相对于凹陷或烃源区,枢纽带处于高部位,是油气运移的指向区,而相对隆起高部位,其又处于相对较低的位置,有利于油气的保存,免遭破坏。因此,不管是对于油气的捕捉还是保存,枢纽带都处于极其有利的位置。枢纽带油气分布具明显的复式油气聚集特征。

关键词: 塔里木盆地, 叠合盆地, 构造枢纽带, 碳酸盐岩, 油气成藏

Abstract: Tarim basin has undergone multi-stage differential elevating-subsiding motion and periphery orogeny, and formed a series of structural pivot zones. Their formation is closely related to the formation and evolution of uplifts and slopes. According to the differences of forming characteristics and developing positions, the pivot zone can be divided into three types: uplift-tilted type, slope-reversed type and uplift-slope compound type. The superior hydrocarbon accumulation conditions are generally found in these types of pivot zones in adjacent source area, carbonate rock karst, weathering crust, reef-bank and karst type reservoirs, and traps are dominated by buried hill and structural-lithologic traps. With respect to sag or source areas, the pivot zones are normally in higher locations, being the pointing area of hydrocarbon migration; while with respect to the uplift top, they are in lower ones, favorable for hydrocarbon preservation. Therefore, no matter for hydrocarbon capture or preservation, the pivot zones always locate in favorable positions. In addition, the hydrocarbon distribution in pivot zones is obviously characterized by complex hydrocarbon accumulation.

Key words: Tarim basin, superimposed basin, structural pivot zone, carbonate rock, hydrocarbon accumulation

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