西南石油大学学报(自然科学版)
西南石油大學學報(自然科學版)
서남석유대학학보(자연과학판)
JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SEIENCE & TECHNOLOGY EDITION)
2014年
1期
58-64
,共7页
李隽%汤达祯%薛华庆%郑德温%杜东
李雋%湯達禎%薛華慶%鄭德溫%杜東
리준%탕체정%설화경%정덕온%두동
油页岩%原位开采%页岩油%热解%数值模拟
油頁巖%原位開採%頁巖油%熱解%數值模擬
유혈암%원위개채%혈암유%열해%수치모의
oil shale%in-situ conversion process%shale oil%pyrolysis%numerical simulation
中国油页岩资源量为11602×108 t,其中埋藏深度在500~1500 m的油页岩资源量为6813×108 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5a后可以对页岩油进行开采,产油时间至少可以维持2a。
中國油頁巖資源量為11602×108 t,其中埋藏深度在500~1500 m的油頁巖資源量為6813×108 t,原位開採技術是開髮該部分資源的有效手段。中國油頁巖原位開採技術處于實驗階段,通過對油頁巖熱分解、熱破裂規律、滲透變化規律等方麵的研究,初步探索瞭油頁巖原位開採的可行性。油頁巖熱分解過程可以分為3箇階段:榦燥脫水、熱解生油、無機礦物質的分解。在這3箇階段中,由于油頁巖內部物理化學反應的程度不同,導緻孔隙和裂縫髮生瞭不同程度的變化,變化最大的是熱解生油階段。利用非穩態數學模型研究瞭油頁巖電加熱原位開採的溫度場分佈,錶明加熱5a後可以對頁巖油進行開採,產油時間至少可以維持2a。
중국유혈암자원량위11602×108 t,기중매장심도재500~1500 m적유혈암자원량위6813×108 t,원위개채기술시개발해부분자원적유효수단。중국유혈암원위개채기술처우실험계단,통과대유혈암열분해、열파렬규률、삼투변화규률등방면적연구,초보탐색료유혈암원위개채적가행성。유혈암열분해과정가이분위3개계단:간조탈수、열해생유、무궤광물질적분해。재저3개계단중,유우유혈암내부물이화학반응적정도불동,도치공극화렬봉발생료불동정도적변화,변화최대적시열해생유계단。이용비은태수학모형연구료유혈암전가열원위개채적온도장분포,표명가열5a후가이대혈암유진행개채,산유시간지소가이유지2a。
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.