西南石油大学学报(自然科学版)

• 油气化学工程 • 上一篇    下一篇

聚/表二元体系配制用水水质优化研究

陈聪1,2,唐洪明2 *,韩丽娟2,崔丹丹3,严曦3   

  1. 1.“油气藏地质及开发工程”国家重点实验室· 成都理工大学,四川成都610059
    2.“油气藏地质及开发工程”国家重点实验室· 西南石油大学,四川成都610500
    3. 中国石油大港油田分公司采油工艺研究院,天津大港300280
  • 出版日期:2015-04-01 发布日期:2015-04-01
  • 通讯作者: 唐洪明,E-mail:swpithm@vip.163.com

A Study on Water Quality Optimization of the Polymer/
Surfactant System

Chen Cong1,2, Tang Hongming2*, Han Lijuan2, Cui Dandan3, Yan Xi3   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan 610059,China
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. Oil Production Research Institute,Dagang Oilfield Branch,PetroChina,Dagang,Tianjin 300280,China
  • Online:2015-04-01 Published:2015-04-01

摘要:

聚/表二元体系配制用水的水质对体系性能有明显的影响,目前国内对该方面研究较少。以聚丙烯酰胺
HTPW – 112(离子聚合物)和表面活性剂DWS – 3(非离子型)配制的聚/表二元体系为例,利用大量的室内实验,逐一评
价矿化度、铁离子含量以及细菌等水质指标对聚/表二元体系黏度的影响,为相似油藏的配聚用水水质优化方法提供
思路。实验表明,当Na+ 含量超过3 900 mg/L 时聚表二元体系黏度上升,对二元体系具有一定的盐增稠性能。单一
Mg2+、Ca2+ 含量大于500 mg/L 体系黏度下降趋势增强,且Mg2+ 的影响程度略强于Ca2+。Fe2+ 含量超过5 mg/L,二元
体系黏度开始大幅降低。SRB 超过5 个/mL、TGB 超过100 个/mL、FB 超过100 个/mL 会使聚表二元体系溶液黏度大
幅降低,细菌的代谢产物是造成黏度降低的重要因素。

关键词: 聚/表二元体系, 黏度, 配制用水, 水质, 实验优化方法

Abstract:

Polymer/ surfactant flooding with water has a significant impact on the system performance,but has not been fully research
in China. In this paper,with the polyacrylamide HTPW – 112(ionic polymer)and surfactant DWS – 3(nonionic)preparation
of polymer/surfactant flooding for examples,we make a large number of laboratory experiments to evaluate the impact of water
quality indexes such as salinity,iron ion content and bacterial on the viscosity of the polymer/surfactant flooding,which provides
a new approach for the optimization method of the poly water in the similar reservoir. Experiments show that the viscosity
of polymer/ surfactant flooding increases when the sodium ion content is above 3 900 mg/L,and the system has certain salt
thickening performance. The downward trend of the system viscosity increases when single magnesium and single calcium ions
content are more than 500 mg/L. When SRB is than 5 per milliliter,TGB more than 100 per milliliter,and FB more than 100
per milliliter,the system viscosity will reduce greatly. Bacterial metabolites are one of the important factors causing viscosity
reduce.

Key words: polymer/ surfactant system, viscosity, preparation of wate, water quality, optimization experiment