稠油热采模拟隔夹层制备与评价  

Preparation and Evaluation of Interlayer for Simulation of Heavy Oil Thermal Recovery

作　　者：梁旭 范洪军 刘向南 陈立峰 何明薇 LIANG Xu;FAN Hongjun;LIU Xiangnan;CHEN Lifeng;HE Mingwei(State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China;CNOOC Research Institute Ltd.,Beijing 100028,China;College of Petroleum Engineering,Yangtze University,Wuhan 430100,China)

机构地区：[1]海洋石油高效开发国家重点实验室,北京100028 [2]中海油研究总院有限责任公司,北京100028 [3]长江大学石油工程学院,湖北武汉430100

出　　处：《西安石油大学学报（自然科学版）》2023年第5期43-49,84,共8页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金面上项目“热敏聚合物纳米流体高温触变机制研究”(52074038)。

摘　　要：针对目前稠油热采物理模拟实验无法精准模拟实际隔夹层物性的问题,研制了一种可耐350℃高温的树脂用于模拟稠油油藏隔夹层。该树脂由45%改性环氧树脂、35%1-氰乙基-2-苯基-4,5-二(氰乙氧亚甲基)咪唑、10%甲苯基缩水甘油醚、10%改性纳米核硅橡胶组成,在350℃下老化120 d后,抗压强度仍高于20 MPa。以旅大X油田隔夹层为研究对象,制作了与其渗透率、孔隙度、封隔能力相近的模拟隔夹层,一维高温蒸汽突破模拟实验表明模拟隔夹层与实际隔夹层封隔能力非常接近,突破压力梯度相对误差最大仅为4.12%;物性参数测试结果表明大尺寸模拟隔夹层的渗透率、孔隙度和均质性具有较高的精度,可以代替油藏隔夹层进行稠油热采三维物理模拟实验。In order to solve the problem that the physical simulation experiments for heavy oil thermal recovery cannot accurately simulate the physical properties of actual interlayer,a resin that can withstand high temperature of 350℃has been developed for simulating the interlayer in heavy oil reservoirs.The resin is composed of 45%modified epoxy resin,35%1-cyanoethyl-2-phenyl-4,5-di(cyanoethoxymethylene)imidazole,10%tolyl glycidol ether,and 10%modified nano silicone rubber.After aging at 350℃for 120 days,its compressive strength is still higher than 20 MPa.A simulated interlayer with similar permeability,porosity,and sealing ability to the interlayer of Lvda X Oilfield was made using the resin.The one-dimensional high-temperature steam breakthrough simulation experiments show that the sealing ability of the simulated interlayer is very close to that of the actual interlayer,and the maximum relative error of their breakthrough pressure gradient is only 4.12%.The test results of physical property parameters indicate that the permeability,porosity,and homogeneity of large-scale simulated interlayer have high accuracy,and the simulated interlayer can replace the reservoir interlayer in conducting three-dimensional physical simulation experiments for heavy oil thermal recovery.

关 键 词：稠油热采 隔夹层 耐高温树脂 制备方法 物理模拟 

分 类 号：TE345[石油与天然气工程—油气田开发工程]