Page 208 - 《精细化工》2023年第1期

第 40 卷第 1 期 精 细 化 工 Vol.40, No.1
20 23 年 1 月 FINE CHEMICALS Jan. 2023

油田化学品与油品添加剂
含油污泥凝胶体系的研制及性能评价

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孙 新 ，姜许健 ，杨小华 ，康传宏 ，李彬儒 ，郭继香
〔1. 中国石油大学（北京） 非常规油气科学技术研究院，北京 102249；2. 中国石油塔里木油田分公司 东
河油气开发部，新疆 库尔勒 841000〕
摘要：哈拉哈塘油田具有高温高盐的特点，常规调剖剂应用困难。通过改善含油污泥性质及选择匹配的聚丙烯
酰胺，开发了耐温耐盐含油污泥凝胶体系，可用于高温高盐油藏调剖堵水。优化配方组成为：20%含油污泥+0.8%
非离子型耐高温聚丙烯酰胺 NWX-1+0.2%酚醛树脂+5%改性聚合单体（2-丙烯酰胺-2-甲基丙磺酸）+0.01%引发
剂（过硫酸钾）+0.5%增强剂（未改性亲水蒙脱土），其中百分数为质量分数。对含油污泥凝胶体系的耐温耐盐
性能、结构、流变性和突破压力进行了评价。结果表明，含油污泥凝胶体系成胶时间在 1.6 h 以上可控，其显示
出致密三维网状结构，强度可达到 I 级，突破压力可达 3223 kPa/m。增强剂可有效提升含油污泥凝胶体系的黏
弹性模量，蠕变后可回复。
关键词：含油污泥；调剖剂；微观结构；流变性；突破压力；油田化学品
中图分类号：TE39 文献标识码：A 文章编号：1003-5214 (2023) 01-0200-07

Development and performance evaluation of gel
plugging system for oily sludge

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SUN Xin , JIANG Xujian , YANG Xiaohua , KANG Chuanhong , LI Binru , GUO Jixiang
（1. Institute of Unconventional Oil and Gas Science and Technology, China University of Petroleum, Beijing 102249,
China; 2. Donghe Oil and Gas Development Department, Tarim Oilfield Company, CNPC., Korla 841000, Xinjiang,
China）
Abstract: The application of conventional profile control agent for Halahatang oilfield, characterized by
high temperature and high salinity, is not practical. Herein, profile control agent of heat and salt resistant gel
for oily sludge was developed by improving the properties of oily sludge and selecting the matching
polyacrylamide. The optimized formula was as follows: 20% oil sludge + 0.8% nonionic high temperature
resistant polyacrylamide NWX-1 + 0.2% phenolic resin + 5% modified polymer monomer (2-acrylamide-2-
methylpropanesulfonic acid) + 0.01% initiator (potassium persulfate) + 0.5% enhancer (unmodified
hydrophilic montmorillonite), of which the percentage represented mass fraction. The temperature and salt
resistant properties, structure, rheological property and breakthrough pressure of the developed gel plugging
system for oily sludge were then evaluated. The results showed that the system displayed controllable gelation
time above 1.6 h, exhibited a dense three-dimensional network structure of improved the strength up to I
grade with a breakthrough pressure up to 3223 kPa/m. The enhancer used in the system could effectively
improve the viscoelastic modulus of the gel, and the system could recover upon release from creep test.
Key words: oily sludge; profile control agents; microstructure; rheological property; breaking through
pressure; oil field chemicals

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哈拉哈塘油田位于塔里木盆地边缘，为典型的 2.11×10 mg/L）的特点，经过长期水驱开采后，油
碳酸盐岩油藏，具有高温（140 ℃）高盐（矿化度 井含水率急剧上升，已进入高含水开发阶段，且产

收稿日期：2022-03-30; 定用日期：2022-07-22; DOI: 10.13550/j.jxhg.20220297
基金项目：中石化科技攻关项目（P19018-2）
作者简介：孙 新（1995—），男，硕士生，E-mail：sunxincup@163.com。联系人：郭继香（1965—），女，教授，E-mail：guojx002@
163.com。