石油与天然气地质 ›› 2008, Vol. 29 ›› Issue (2): 198-203,209.doi: 10.11743/ogg20080207

• 论文 • 上一篇    下一篇

塔中台地边缘上奥陶统灰岩段裂缝对储层发育的控制作用——以塔中Ⅰ号断裂坡折带为例

周波1,3, 贾承造2, 顾家裕1, 李启明1, 邬光辉1, 倨岩3   

  1. 1. 中国石油天然气股份有限公司, 石油勘探开发研究院, 北京, 100083;
    2. 中国石油天然气股份有限公司, 北京, 100011;
    3. 中国石油天然气股份有限公司, 塔里木油田分公司, 新疆, 库尔勒, 841000
  • 收稿日期:2008-03-27 出版日期:2008-04-24 发布日期:2012-01-16
  • 基金资助:

    国家重点基础研究发展规划(973)项目(2006CB202300).

Controlling effect of the fractures in Upper Ordovician fractures upon reservoir formation at the platform edge of Tazhong oilfield,the Tarim Basin—an example from the Tazhong-Ⅰ slope break zone

Zhou Bo1,3, Jia Chengzao2, Gu Jiayu1, Li Qiming1, Wu Guanghui1, Ju Yan3   

  1. 1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
    2. PetroChina, Beijing 100011, China;
    3. Petrochina Tarim Oilfield Company, Korla, Xinjiang 841000, China
  • Received:2008-03-27 Online:2008-04-24 Published:2012-01-16

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摘要：

根据岩心、岩石薄片的观察分析,结合阴极发光鉴定技术,确定塔中台地边缘中、上奥陶统灰岩段至少发育3期构造裂缝,其中喜马拉雅期构造裂缝显著改善储层品质.认为岩心上大量微细裂缝的主要作用是提高渗透率,沟通大裂缝与基质孔.研究区储层发育模式强调裂缝对储层发育的控制作用,埋藏溶蚀是造成基质孔隙发育的主要作用,并指出下一步勘探目标是有利沉积相带中的裂缝发育带.

关键词: 阴极发光, 裂缝期次, 埋藏溶蚀, 储层发育模式, 台地边缘, 塔中地区

Abstract:

Observation and analysis of cores and thin sections,combined with cathodeluminescence identification technique,reveal that at least 3 stages of structural fractures were developed in the Middle-Upper Ordovician limestone formation at the platform edge,Tazhong oilfield.Among the fractures,the one formed in Himalaya pe-riod had greatly improved the quality of reservoirs.It is suggested that the numerous tiny to small fissures in cores could enhance permeability and connect larger fractures with matrix pores.The authors present in this paper the model of reservoir formation which emphasizes the controlling roles of fractures to reservoir formation,and regard burial dissolution as the main mechanism of matrix pore growth.They also point out that the future exploration targets in the basin shall be fractures in the favorable sedimentary facies belt.

Key words: cathodeluminescence, phases of fracture, burial dissolution, pattern of reservoir formation, platform edge, Tazhong area

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