深层高温油藏新型冻胶调剖实验研究  

A new type of gel profile confronting experiment for deep high-temperature reservoir

作　　者：陈洪才 冯绪波 马惠 Chen Hongcai;Feng Xubo;Ma Hui(NO.2 Oil Production Plant,Jiangsu Oilfeild Company,Jinhu 225666)

机构地区：[1]中国石化股份有限公司江苏油田分公司采油二厂,江苏金湖225666

出　　处：《石化技术》2024年第6期22-24,共3页Petrochemical Industry Technology

摘　　要：研发了一种用于高温油藏深部调剖的纳米石墨强化酰酚醛树脂冻胶,通过调节纳米石墨、聚合物浓度、交联剂浓度,实现成胶时间和冻胶强度控制。研究表明温度和盐度升高加速冻胶化速度,保证在深部地层中长期稳定。差示扫描量热法确定该冻胶适用温度范围为0~147℃。岩心封堵实验表明,其封堵率和阻力系数分别大于90%和14。A kind of gel-forming time and gel-strength were controlled by adjusting the concentration of nano-graphite,polymer and crosslinking agent.The study shows that the increase of temperature and salinity accelerates the rate of gelling and ensures long term stability of gelling in deep strata.Differential scanning calorimetry was used to determine the applicable temperature range of the gel from 0 to 147℃.The core plugging test shows that the plugging rate and resistance coefficient are greater than 90%and 14,respectively.

关 键 词：高温油藏 调剖 微观结构 

分 类 号：TE39[石油与天然气工程—油气田开发工程]