阿姆河右岸气藏主控因素  

Main controlling factors of natural gas enrichment in the Amu Darya Right Bank Block

作　　者：杨浩珑[1] 时迎 魏春光[2] Yang Haolong;Shi Ying;Wei Chunguang(School of Petroleum Engineering,Chongqing University of Science and Technology,Chongqing City,401331,China;PetroChina Research Institute of Petroleum Exploration & Development,Beijing City,100083,China)

机构地区：[1]重庆科技学院石油与天然气工程学院,重庆401331 [2]中国石油勘探开发研究院,北京100083

出　　处：《油气地质与采收率》2017年第4期61-66,共6页Petroleum Geology and Recovery Efficiency

摘　　要：阿姆河盆地是中亚地区含油气丰富的沉积盆地，阿姆河右岸是中亚地区主要气源地。近十年来，研究区科研攻关成果显著，但对天然气成藏研究仍然不足，其主控因素尚不明确。为寻找阿姆河右岸项目下一步有利勘探目标，对研究区气藏进行剖析，重点分析构造及岩性气藏主控因素。综合利用地球物理解释、天然气成藏及沉积分析、圈闭及储层评价和单井产能分析等方法，认为阿姆河右岸气藏主控因素主要分为构造和沉积2方面。其中构造因素包括基底古隆起控制圈闭分布、断层为重要的油气运移通道和新近纪以来的构造事件使油气再分配，沉积因素包括膏盐岩有效遮挡是必要的封盖条件、生物礁滩体控制高产气井分布和储层类型影响气水界面及气藏类型。不同类型气藏由一种或几种主要因素控制，使气藏具有呈团块状聚集、带状分布的特点。Amu Darya Basin is an exploration area with huge potential of natural gas.It is known as the most important source of Mid-Asian nature gas pipeline.There is still a shortage in research of reservoir forming rules even though many researches have been carried out in recent10years,and controlling factors for gas reservoir forming are also uncertain.In order to find the next gas reservoir target in the further exploration,a series of comprehensive analysis was conducted.It focused on the main controlling factors that led to various types of gas reservoirs.Using a combination of geophysical data interpretation,gas reservoir accumulation analysis,trap evaluation,sedimentary facies analysis,reservoir evaluation and single well production capacity analysis,etc.,the research concluded the main controlling factors of gas accumulation from two aspects-structure and sedimentation.The former includes basement paleo-uplift which controls the trap distribution,faults which are pathway for hydrocarbon migration and tectonic movement since Neogene that results in hydrocarbon redistribution.The latter includes anhydrock and salt shelter which is necessary for the trap of effective hydrocarbon,reef-beach bodies which are closely related to high-production gas well and reservoir type which determines gas-water interface and types of gas reservoirs.The distribution of each type of gas reservoir is determined by one or several main factors,forming bulklike gas accumulation and stripped distribution.

关 键 词：气藏 主控因素 构造 沉积 古隆起 断层 阿姆河右岸 

分 类 号：TE112.31[石油与天然气工程—油气勘探]