中国油页岩原位开采可行性初探  

Discission of Oil Shale In-situ Conversion Process in China

作　　者：李隽[1,2] 汤达祯[1] 薛华庆[3,4] 郑德温[3,4] 杜东[2] 

机构地区：[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　　处：《西南石油大学学报（自然科学版）》2014年第1期58-64,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重大科技专项(2008ZX05018)

摘　　要：中国油页岩资源量为11 602×108t,其中埋藏深度在500～1 500 m的油页岩资源量为6 813×108t,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。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 oflCP 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.

关 键 词：油页岩 原位开采 页岩油 热解 数值模拟 

分 类 号：TE122[石油与天然气工程—油气勘探]