西南石油大学学报(自然科学版) ›› 2021, Vol. 43 ›› Issue (5): 220-226.DOI: 10.11885/j.issn.1674-5086.2021.02.28.03

• 非常规油气开发专刊 • 上一篇    

油页岩原位转化热解反应特征研究综述

徐金泽1, 陈掌星1, 周德胜2, 聂万才3,4, 李苒1   

  1. 1. 卡尔加里大学化学与石油工程系, 艾伯塔 卡尔加里 T2N1N4;
    2. 西安石油大学石油工程学院, 陕西 西安 710065;
    3. 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;
    4. 中国石油长庆油田分公司宜黄天然气项目部, 陕西 西安 710021
  • 收稿日期:2021-02-28 发布日期:2021-11-05
  • 通讯作者: 陈掌星,E-mail:zhachen@ucalgary.ca
  • 作者简介:徐金泽,1990年生,男,汉族,山东泰安人,博士,主要从事非常规油气方面的研究工作。E-mail:jinze.xu@foxmail.com
    陈掌星,1962年生,男,汉族,陕西西安人,教授,加拿大皇家科学院院士、工程院院士,主要从事油藏数值模拟方面的研究。E-mail:zhachen@ucalgary.ca
    周德胜,1963年生,男,汉族,四川武胜人,教授,主要从事非常规油气水力压裂提高采收率等方面的研究工作。E-mail:dzhou@xsyu.edu.cn
    聂万才,1986年生,男,汉族,河南南阳人,高级工程师,主要从事油藏地质方面的研究。E-mail:52608226@qq.com
    李苒,1990年生,女,汉族,山东东营人,博士后,主要从事非常规油气提高采收率方面的研究工作。E-mail:liran0427@foxmail.com
  • 基金资助:
    国家自然科学基金青年项目(52004220);油气藏地质及开发工程国家重点实验室·成都理工大学开放基金(PLC20210316);国家自然科学基金重点项目(51934005);国家自然科学基金面上项目(51874242)

Review on the Characteristics of Pyrolysis During In-situ Conversion of Oil Shale

XU Jinze1, CHEN Zhangxing1, ZHOU Desheng2, NIE Wancai3,4, LI Ran1   

  1. 1. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada;
    2. College of Petroleum Engineering, Xi'an Shiyou University, Xi'an, Shaanxi 710065, China;
    3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    4. Yihuang Natural Gas Project Department, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710021, China
  • Received:2021-02-28 Published:2021-11-05

摘要: 近年来,世界能源消耗日渐增加,作为非常规能源之一的油页岩是重要的接替资源。中国油页岩资源量丰富,居世界第四位。原位转化技术作为油页岩开采的主流技术,利用热解反应建立渗流通道,开采页岩油气。基于热解反应阶段、干酪根热解、矿物成分影响与热解协同孔隙结构演化等4个方面对原位转化过程中的热解反应特征进行研究综述:(1)热解反应各个阶段下的热物理演化与热化学反应;(2)干酪根热解的反应机理及其影响因素;(3)无机矿物分解对热解反应的促进与抑制作用;(4)热解反应协同孔隙结构演化的机理及其对微裂缝扩展的促进作用。立足于热解反应这一原位转化中的核心技术问题,力图为热解反应在油页岩与中低成熟度页岩油原位转化中的应用提供一定的参考。

关键词: 油页岩, 原位转化, 热解反应, 孔隙结构, 干酪根

Abstract: Recently, the consumption of global energy gradually increases, and the oil shale is an important substitution for the conventional oil and gas. The oil shale reserves in China are abundant, which ranks the fourth in the world. As the main technology to develop oil shale reservoirs, the in-situ conversion utilizes pyrolysis to expand seepage pathways to obtain shale oil and gas. This paper reviews the characteristics of pyrolysis from four aspects:the stage of pyrolysis, the pyrolysis of kerogen, the impact of minerals and the evolution of pore structures assisted by pyrolysis:(1) thermophysical evolution and thermochemical reactions in different stages of pyrolysis reaction; (2) reaction mechanism of kerogen pyrolysis and its influencing factors; (3) promoting and inhibiting effects of mineral decomposition on pyrolysis; (4) the mechanism of pore structure evolution assisted by pyrolysis and its effects on fracture propagation. This paper is based on the pyrolysis which is the core technical challenge during the in-situ conversion. It will also provide some references for the application of in-situ conversion in oil shale and shale oil with low and medium maturities.

Key words: oil shale, in-situ conversion, pyrolysis, pore structure, kerogen

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