石油与天然气地质 ›› 2002, Vol. 23 ›› Issue (1): 81-83.doi: 10.11743/ogg20020117

• 油气空间 • 上一篇    下一篇

川北柏垭地区大安寨一亚段储渗体特征及油气分布

黎从军   

  1. 中国石化新星公司西南石油局研究院, 四川成都, 610081
  • 收稿日期:2001-08-20 出版日期:2002-03-25 发布日期:2012-01-16
  • 基金项目:

    中国石化新星公司科技项目“川北阆中-南部地区千佛崖组、大安寨段油气富集带预测及勘探目标选择”科研成果部分内容

OIL-GAS PREDICTION AND CHARACTERISTICS OF RESERVOIR BODIES FOR DA'ANZAI-1 SUBMEMBER IN BAIYA OF NORTH SICHUAN

Li Congjun   

  1. Research Institute of Southwest Petroleum Bureau, SINOPEC, Chengdu, Sichuan
  • Received:2001-08-20 Online:2002-03-25 Published:2012-01-16

PDF (PC)

606

被引次数

39

摘要：

大安寨-亚段储渗体主要发育在碳酸盐岩浅湖中的高能介屑滩灰岩中。高能介屑滩灰岩是形成储渗体的物质基础,重结晶作用和溶蚀作用使岩石变松、变脆和易于破裂,发育溶孔、洞、缝;两次大的挤压应力作用,产生两组共扼剪切构造裂缝,在构造高部位和构造变异部位会沿这些剪切裂缝产生重张缝和追踪张裂缝,极大的改善了储集性能;断裂是储渗体中油气运移的重要通道。强振幅、高波阻抗是识别厚层、质纯灰岩的重要标志;高突变系数对储渗体孔洞缝的发育特别敏感,是识别储渗层的重要参数。在此基础上运用多参数综合判别法对川北柏垭地区大安寨-亚段储渗体进行了分布预测,预测结果得到钻井验证。

关键词: 大安寨段, 储渗体, 主控因素, 识别, 分布

Abstract:

Da'anzai-1 submember reservoir body developed in high energy shelly limestone of shallow lake carbonate facies.Recrystallization and dissolution made the shelly limestone loose and easy to be break.Solution pores,cavities and fissures developed well in it.Two compressional movements resulted in two sets of conjugate shear fractures,and also formed retensional fissures and extensional fissures on the higher part and mutation part of the structure along the shear fractures.This thus considerably improved reservoir's physical property.It has been proved that intense amplitude and high wave impedance are important evidences for the identification of thick limestone;high mutation factor is an important parameter for distingushing porous reservoirs.This method was used to predict the distribution of porous reservoir in Da'anzai 1 submember in Baiya region of North Sichuan,the result has been proved by well drilling.

Key words: Da'anzai member, reservoir body, controlling factor, identification, distribution prediction

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