西南石油大学学报(自然科学版)

• 石油与天然气工程 • 上一篇    下一篇

低渗透油藏分层动用状况判别方法

徐慧1,林承焰1,孙彬2,宋新利3,曲丽丽1   

  1. 1. 中国石油大学(华东)地球科学与技术学院,山东青岛266580
    2. 中国石化石油勘探开发研究院,北京海淀100083
    3. 中国石油辽河油田公司勘探开发研究院,辽宁盘锦124010
  • 出版日期:2013-08-01 发布日期:2013-08-01

Approach to the Discrimination of Layered Performance of
Low-permeability Reservoir

Xu Hui1, Lin Chengyan1, Sun Bin2, Song Xinli3, Qu Lili1   

  1. 1. School of Geosciences,China University of Petroleum(East China),Qingdao,Shandong 266580,China
    2. Exploration & Production Research Institute,Sinopec,Haidian,Beijing 100083,China
    3. Research Institute of Exploration and Development,Liaohe Oilfield Company,PetroChina,Panjin,Liaoning 124010,China
  • Online:2013-08-01 Published:2013-08-01

摘要:

针对多层砂岩低渗透油藏油水井动态监测资料少,分层动用状况分析难度大的问题,提出了一种较实用的分
层动用状况研究新方法。从微观渗流机理和宏观开发规律出发,研究了渗流阻力倒数、平均孔喉半径、夹层频数倒数、
射开油层有效厚度、单井月产液量等影响低渗透油藏注水开发效果的动、静态因素与单井累产油之间的关系,并通过
层次分析法确定各因素的权值,建立了油水井分配系数的计算公式,确定油井的分层产油量,判别油藏分层动用状况。
以张强凹陷Q1 区块和渤南油田四区低渗透油藏为例进行验证,结果表明,该方法可行,能够用以分析无动态监测资
料井点的分层产油量,对下一步的挖潜具有一定的指导作用。

关键词: 低渗透, 注水开发影响因素, 层次分析法, 分层产油量, 分层动用状况

Abstract:

It is difficult to analyze the performance of multi-layered sandstone reservoir,because there is not adequate dynamic
detection data for producers and injectors. A new approach to the question is presented. Based on microscopic percolation
mechanism and macroscopic development characteristics,after the relationship between cumulative production of single well
and the dynamic and static factors which affect waterflood development,such as reciprocal value of filtrational resistance,
average pore throat radius,reciprocal value of interlayer frequency,net thickness and monthly liquid production is researched,
and a discriminant matrix is established to determine the weights of the various factors. Then distribution coefficient of every
producer is gotten,so are the layered accumulative production and performance. The instance validation results show that the
method is suitable,and can be used to analyze the performance of wells without dynamic detection data,for guiding the later
exploitation.