油气田开发

H 地区主力油层驱油效率影响因素

  • 孟万斌 ,
  • 李敏 ,
  • 刘家铎 ,
  • 颉永平 ,
  • 马立协
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  • 1.大陆动力学国家重点实验室; 2.西北大学地质学系; 3.中国石油长庆油田分公司第六采油厂地质所

网络出版日期: 2010-09-15

基金资助

国家重点基础研究发展计划“973”项目(编号:2003CB214603)资助

Influencing factors for displacement efficiency in the main reservoirs of H area

  • MENG Wanbin ,
  • LI Min ,
  • LIU Jiaduo ,
  • XIE Yongping ,
  • MA Lixie
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  • 1. State Key Laboratory of Continental Dynamics, Xi’an 710069, China; 2. Department of Geology, Northwest University, Xi’an 710069, China; 3. Geological Institution of No. 6 Oil Production Plant, Changqing Oilfield, Xi’an 710200, China

Online published: 2010-09-15

摘要

鄂尔多斯盆地H 地区三叠系延长组主力油层为长6、长4+5、长2 油层组,为典型的低渗透储层。为了掌握该地区各油层地下流体渗流规律及油水两相驱替特征,此次研究运用真实砂岩模型,对H 地区主力油层进行了水驱油实验,并结合薄片鉴定、物性分析、扫描电镜、相渗、压汞等资料,分析出该地区主力油层驱油效率影响因素主要为微观孔隙结构、驱替压力和润湿性,物性对驱油效率的影响不大。

本文引用格式

孟万斌 , 李敏 , 刘家铎 , 颉永平 , 马立协 . H 地区主力油层驱油效率影响因素[J]. 岩性油气藏, 2010 , 22(3) : 128 -132 . DOI: 10.3969/j.issn.1673-8926.2010.03.026

Abstract

The main reservoirs of Triassic in H area of Ordos Basin are Chang 6, Chang 4+5 and Chang 2, which are typical low-permeability reservoirs. In order to obtain the regulations of flowing liquid and the characteristics of two phase flow, the water/oil displacement experiment inHarea is carried out by real sandstonemodel. Thin section analysis, physical property, scanning electronic microscope, relative permeability andmercury penetration are applied to analyze the influencing factors for the displacement efficiency in this area, which include pore structure, displacement pressure andwettability. Physical propertyhas little effect onthe displacement efficiency.

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