岩性油气藏 ›› 2015, Vol. 27 ›› Issue (6): 111–118.doi: 10.3969/j.issn.1673-8926.2015.06.015

• 技术方法 • 上一篇    下一篇

蚂蚁追踪技术在裂缝预测中的应用——以青西油田下沟组为例

周 文1,尹太举1,张亚春2,李伟强1,王冬冬 1   

  1.  1. 长江大学 地球科学学院,武汉 430100 ; 2. 长江大学 地球环境与水资源学院,武汉 430100
  • 出版日期:2015-12-20 发布日期:2015-12-20
  • 第一作者:周文( 1990- ),男,长江大学在读硕士研究生,研究方向为精细油藏描述和裂缝预测。 地址:( 430100 )湖北省武汉市蔡甸区长江大学武汉校区。 E-mail : zw1097552171@163.com
  • 基金资助:

    中国石油股份有限公司重大科技专项“玉门油田上百万吨勘探开发关键技术研究”(编号: 2012E-3304 )资助

Application of ant tracking technology to fracture prediction:A case study from Xiagou Formation in Qingxi Oilfield

Zhou Wen1, Yin Taiju1, Zhang Yachun2, Li Weiqiang1, Wang Dongdong1   

  1.  1. School of Geosciences , Yangtze University , Wuhan 430100 , China ; 2. School of Earth Environment and Water Resources , Yangtze University , Wuhan 430100 , China
  • Online:2015-12-20 Published:2015-12-20

摘要:

青西油田下白垩统下沟组储层主要为低孔、低渗的泥云岩和砂砾岩,其裂缝是油气渗流的重要通道,且对油气的富集起到控制作用。 利用蚂蚁追踪技术及成像测井资料对青西油田的裂缝发育情况进行分析,预测青西油田下沟组裂缝的分布规律并建立青西油田的裂缝模型。结果表明:研究区主要发育北东—南西走向和北西—南东走向 2 组裂缝,且裂缝发育程度较高的部位主要位于青西油田的北西部、北东部及南东部;高产井大多位于裂缝发育程度较高的区域。因此,裂缝发育较集中的区域是后期油气勘探开发研究的重点区域。

关键词: 辫状河三角洲, 曲流河三角洲, 沉积特征, 演化模式, 隆后坳陷, 桑塔木地区

Abstract:

 The main reservoirs of the Low Cretaceous Xiagou Formation are characterized by muddy dolomite with low porosity and low permeability and conglomerate in Qingxi Oilfield, where fractures act as important migration and accumulation space and have controlling effect on oil enrichment. Ant tracking technology and imaging logging data were applied to analyze the characteristics of the fractures in Qingxi Oilfield. The fractures distribution of Xiagou Formation was predicted and the fracture model of Qingxi Oilfield was established. The results show that the study area mainly developed two sets of fractures including NE-SW trend and NW-SE trend, the fractures developed with high degree are mainly located in the northwest, northeast and southeast of Qingxi Oilfield, and high yielding wells are mostly located in these areas. Consequently, the areas with high degree development of fracture are favorable for oil and gas exploration and development at the late stage.

Key words:  , braided river delta; meandering river delta; sedimentary characteristics; evolution models; backbulge , zone; Sangtamu area

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