油页岩原位水平井开采流-热-固耦合数值模拟  

Fluid-thermal-solid Coupling Simulation of Oil Shale In-situ Pyrolysis by Horizontal Well Pattern

作　　者：赵金岷 曹东方 刘玉民 邢顺范 ZHAO Jinmin;CAO Dongfang;LIU Yumin;XING Shunfan(The In-situ Conversion Demonstration Branch of State Center for Research and Development of Oil Shale Exploitation,Jilin Zhongcheng Oil Shale Group Co.,Ltd.,Changchun 130033,China;College of Earth Sciences,Jilin University,Changchun 130061,China)

机构地区：[1]吉林省众诚油页岩集团有限公司国家油页岩原位开采工程示范分中心,长春130033 [2]吉林大学地球科学学院,长春130061

出　　处：《科技和产业》2022年第1期329-337,共9页Science Technology and Industry

基　　金：国家重点研发计划(2019YFA0705504-4,2019YFA0705502-3);吉林省优秀青年人才基金项目(20190103138JH)。

摘　　要：构建油页岩原位水平井开采的三维数学模型,采用流-热-固耦合模拟分析油页岩原位燃烧加热过程中的温度场和应力、应变场。讨论不同燃烧温度以及注气流速下温度场以及油气产物随开采时间的演变规律,分析油页岩地层形变特征。结果显示,提高燃烧器的燃烧温度可显著加快油页岩原位转化的进程,而单纯提高注气流速对反应进展影响不大。此外,需考虑地层形变,尤其是注气井和生产井底的形变对井底设备运转的影响。研究结果为中国油页岩原位开采提供了数据支撑。The three-dimensional temperature field and formation deformation analysis of oil shale in-situ pyrolysis by horizontal well pattern was carried out by using fluid-thermal-solid coupling simulation.The evolution of temperature field and oil and gas products with increasing the production time under different combustion temperatures and gas injection flow rates were discussed.The deformation characteristics of oil shale formations were also analyzed.The results show that increasing the combustion temperature of the burner can significantly accelerate the in-situ conversion rate of oil shale.However,simply increasing the gas injection flow rate has little effect on the pyrolysis reaction progress.In addition,the formation deformation needs to be considered,especially the influence of the deformation of the bottom of the gas injection and production wells on the operation of the equipment at the bottom.The results provide data support for the oil shale in situ conversion development in China.

关 键 词：油页岩 原位开采 多场耦合数值模拟 地层形变 

分 类 号：TE319[石油与天然气工程—油气田开发工程]