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塔里木盆地塔中Ⅲ区奥陶系碳酸盐岩油气成藏主控因素及有利区带
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  • 英文篇名:Main Factors Controlling Carbonate Reservoir Formation: Case study of Tazhong block Ⅲ,Tarim Basin
  • 作者:孙东 ; 潘建国 ; 胡再元 ; 杨丽莎 ; 周俊峰 ; 韩杰 ; 李闯 ; 房启飞
  • 英文作者:SUN Dong;PAN JianGuo;HU ZaiYuan;YANG LiSha;ZHOU JunFeng;HAN Jie;LI Chuang;FANG QiFei;PetroChina Research Institute of Petroleum Exploration and Development-Northwest;Research Institute of Exploration and Development,Tarim Oilfield Company;
  • 关键词:高能相带 ; 断裂破碎带 ; 古构造 ; 油气成藏 ; 碳酸盐岩 ; 塔里木盆地
  • 英文关键词:high-energy facies;;fractured zone;;paleostructures;;reservoir forming;;carbonate rock;;Tarim Basin
  • 中文刊名:沉积学报
  • 英文刊名:Acta Sedimentologica Sinica
  • 机构:中国石油勘探开发研究院西北分院;中国石油塔里木油田分公司勘探开发研究院;
  • 出版日期:2019-04-10 11:42
  • 出版单位:沉积学报
  • 年:2019
  • 期:04
  • 基金:国家科技重大专项(2016ZX05004-003)~~
  • 语种:中文;
  • 页:210-219
  • 页数:10
  • CN:62-1038/P
  • ISSN:1000-0550
  • 分类号:P618.13
摘要
碳酸盐岩是塔里木盆地塔中地区古生界油气勘探的主要目的层,探讨其成藏主控因素对碳酸盐岩勘探具有重要的意义。针对塔中Ⅲ区油气成藏规律复杂、难以有效拓展的难题,从构造断裂发育演化对碳酸盐岩储层沉积、储层后期改造以及油气运移和聚集的影响入手,明确了受断裂挤压抬升控制的高能相带是岩溶储层发育的物质基础,塔中Ⅲ区广泛发育台内高能滩和台内缓滩;北东向走滑断裂体系羽状破碎带和斜列叠置破碎带是储层最为发育的区域;关键成藏期古构造控制了塔中Ⅲ区古生界油气由北向南的运移路径,鼻状构造区油气运聚有利。在此基础上,结合区域盖层展布特征、储层分类预测结果和实钻油藏特征进行了成藏有利区综合评价,指明了塔中Ⅲ区下步勘探有利方向。
        Carbonate rock is the major target horizon for Paleogene oil/gas exploration in the Tazhong area of the Tarim Basin. Study of the major factors controlling reservoir formation plays an important role in carbonate exploration. The complexity of reservoir forming in Tazhong block Ⅲ has restricted exploration,so analysis of carbonate reservoir deposition and later re-formation was carried out in terms of tectonic evolution to confirm that the high-energy facies controlled by faulted uplifting was the material basis for karstification. High-energy shoals and inner platform gentle shoals are widely developed in Tazhong block Ⅲ. The feather-shaped fractured zone and echelon faults in the NE strike-slip fault system are favorable areas for reservoir development. The paleostructures in the crucial period of hydrocarbon accumulation controlled the migration pathway for Paleogene oil/gas migration from north to south in Tazhong block Ⅲ,where a nose-like structure is most favorable for oil/gas migration and accumulation. Based on the above work,a comprehensive evaluation of reservoir formation was carried out based on regional seal distribution,reservoir prediction and existing drilling records,to direct future exploration.
引文
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