西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

中国油页岩原位开采可行性初探

李隽1,2,汤达祯1,薛华庆3,4,郑德温3,4,杜东2   

  1. 1. 中国地质大学(北京)能源学院,北京海淀100083
    2. 中国石油勘探开发研究院,北京海淀100083
    3. 中国石油勘探开发研究院廊坊分院,河北廊坊065007
    4. 中国石油非常规油气重点实验室,河北廊坊065007
  • 出版日期:2014-02-01 发布日期:2014-02-01
  • 基金资助:

    国家重大科技专项(2008ZX05018)。

Discission of Oil Shale In-situ Conversion Process in China

Li Jun1,2, Tang Dazhen1, Xue Huaqing3,4, Zheng Dewen3,4, Du Dong2   

  1. 1. School of Energy Resources,China University of Geosciences(Beijing),Haidian,Beijing 100083,China
    2. Petrochina Research Institute of Petroleum Exploration & Development,Haidian,Beijing 100083,China
    3. Langfang Branch PetroChina Research Institute of Petroleum Exploration & Development,Langfang,Hebei 065007,China
    4. Key Lab of Unconventional Oil & Gas,CNPC,Langfang,Hebei 065007,China
  • Online:2014-02-01 Published:2014-02-01

摘要:

中国油页岩资源量为11 602×108 t,其中埋藏深度在500~1 500 m 的油页岩资源量为6 813×108 t,原位开采技
术是开发该部分资源的有效手段。中国油页岩原位开采技术处于实验阶段,通过对油页岩热分解、热破裂规律、渗透
变化规律等方面的研究,初步探索了油页岩原位开采的可行性。油页岩热分解过程可以分为3 个阶段:干燥脱水、热
解生油、无机矿物质的分解。在这3 个阶段中,由于油页岩内部物理化学反应的程度不同,导致孔隙和裂缝发生了不
同程度的变化,变化最大的是热解生油阶段。利用非稳态数学模型研究了油页岩电加热原位开采的温度场分布,表明
加热5 a 后可以对页岩油进行开采,产油时间至少可以维持2 a。

关键词: 油页岩, 原位开采, 页岩油, 热解, 数值模拟

Abstract:

The oil shale resources,which buried in 500~1 500 m,are about 6 813×108 t tones in China. The in-situ conversion
process(ICP)is still in its infancy in China and were preliminary studied by oil shale pyrolysis,micropores and permeability
experiments in different temperature. The oil shale pyrolysis is classified as 3 stages:dehydration,pyrolysis and mineral
decomposition. During these stages,the physical and chemical reaction occurred in different,micropores and permeability of
oil shale were evolved in different extent,of which the major changed is pyrolysis stage. We studied the temperature distribution
of ICP with the unsteady mathematical model. It shows that the shale oil productions can begin after 5 years heating,the duration
of productions maintains at least 2 years.

Key words: oil shale, in-situ conversion process, shale oil, pyrolysis, numerical simulation