新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (4): 483-485.

• 油气勘探 • 上一篇    下一篇

石港油田古近系阜宁组二段低渗透砂岩储集层裂缝研究

季宗镇1, 窦之林2, 解秋红1, 马晓明1   

  1. 1.中国石油大学 地球资源与信息学院, 山东 东营 257061;
    2.中国石化 西北分公司, 乌鲁木齐 830011
  • 收稿日期:2007-01-22 出版日期:2007-08-01 发布日期:2020-07-31
  • 作者简介:季宗镇(1982-), 男, 山东东营人, 在读硕士研究生, 构造地质学,(Tel) 13963392581(E-mail) jizongzhen@163.com.

Prediction of Fracture Parameter in Low Permeability Sandstone Reservoir of Fu-2 Member of Paleogene in Shigang Oilfield

JI Zong-zhen1, DOU Zhi-lin2, XIE Qiu-hong1, MA Xiao-ming1   

  1. 1. Faculty of Geo-Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China;
    2. Northwest Company, Sinopec, Urumqi, Xinjiang 830011, China
  • Received:2007-01-22 Online:2007-08-01 Published:2020-07-31

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摘要： 岩石的破裂、构造裂缝的产生主要受构造应力场的影响与控制。在构造应力场数值模拟的基础上,基于岩石破裂准则,预测了石港地区古近系阜宁组二段的储集层裂缝参数。裂缝在阜宁组沉积晚期的古构造应力场下产生,在断层附近最为发育,走向以近北北东向为主。现今应力对裂缝具有改造作用,裂缝的开度、密度、孔隙度和渗透率的高值区位于石3-石6断块与石4断块西北部、金4断块北部、石11-石5断块中部和南部。

关键词: 石港油田, 构造应力场, 裂缝预测, 有限元分析

Abstract: Rock burst and structural fracture are influenced and controlled mainly by tectonic stress field. On the basis of stress field numerical simulation and rock fracture rules, the fracture parameters of Fu-2 member reservoir of Paleogene in Shigang oilfield are predicted. The study shows that the fractures occurred under the paleo-stress field in late Funing episode, and were mainly distributed near the Shigang fault. The present stress field is of modified effect on the fractures, allowing the high values of fracture aperture, fracture density, porosity and permeability to appear in the northwestern Shi 3-Shi 6 fault block and Shi 4 fault block, the northern Jin 4 fault block and the middle and southern Shi 11-Shi 5 fault block.

Key words: Shigang oilfield, tectonic stress field, fracture prediction, finite element analysis

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