新疆石油地质 ›› 1997, Vol. 18 ›› Issue (4): 380-384.

• 油藏工程 • 上一篇    下一篇

低电阻油层成因及其研究方法——以辽河油田为例

康志勇   

  1. 辽河石油勘探局勘探开发研究院 辽宁盘锦 124010
  • 收稿日期:1996-04-15 出版日期:1997-12-01 发布日期:2021-01-18
  • 作者简介:康志勇, 工程师 石油地质

ORIGIN OF Low RESISTIVITY PAY ZONE AND ITS STUDY METHOD-An Example from Liaohe Oilfield

Kang Zhiyong   

  1. Research Instiue of Exploration and Derelopment, Liaohe Petraleum Exploration Bureau, Panjin, Liaoning 124010
  • Received:1996-04-15 Online:1997-12-01 Published:2021-01-18
  • About author:Kang Zhiyong, Engineer, Petroleun Geology

摘要: 低电阻油层主要有两种储集层类型: 一种是粉砂岩储集层; 另一种是含粘土矿物的砂岩储集层。在这两种储集层中,由于强烈的毛细管作用和极大的内表面积形成的高含水饱和度使含烃储集层的电阻率与纯水层相似。在分析了辽河油田锦16块低电阻率油层的地质特点后,提出了识别低电阻油层的基本方法:从分析油藏的形成条件和储集层的岩性特征人手,利用测井信息结合岩心分析资料识别低电阻油层。

关键词: 低, 电阻率, 油层, 束缚水饱和度, 粘土矿物, 表面积, 粉砂岩, 岩心分析

Abstract: Low resistivity pay zone includes two types of reservoirs, one is siltstone reservoir, the other is clayey sandstone reservoir. The resistvities of these two types of reservoir are similar to that of water layer because of high water saburation formed by strong capillary action and large inner surface area. After analysing the geologic characteristics of low resistivit pay zone in Jin 16 Block of Liaohe oilfeld, the author presented a method for discriminating low resistivity pay zone, that is, on the basis of forming conditions of pool and lithologic characteristics of reservoir, low resistivity pay zone can be identifed by using logging informnation and core data.

Key words: Low, Resistivity, Oil reservoir, Ireducible water saturation, Clay mineral, Surface area, Siltstone, Core analyses