基于原位转化/改质技术的陆相页岩选区评价——以鄂尔多斯盆地三叠系延长组7段页岩为例  

Selection of pilot areas for testing in-situ conversion/upgrading processing in lacustrine shale:a case study of Yanchang-7 member in Ordos Basin

作　　者：杨智[1] 邹才能[1] 付金华[2] 侯连华[1] 刘显阳[2] 林森虎[1] 李士祥[2] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油长庆油田勘探开发研究院,陕西西安710021

出　　处：《深圳大学学报（理工版）》2017年第3期221-228,共8页Journal of Shenzhen University(Science and Engineering)

基　　金：国家重点基础研究发展计划资助项目(2014CB239000)~~

摘　　要：与依靠水平井体积压裂技术的页岩气、致密油开发相比,原位转化/改质技术更适合规模效益开发中国陆相大面积分布、成熟度介于0.5%~1.0%、总有机碳质量分数大于6%的页岩层系液态烃资源.本研究基于原位转化/改质技术具有不受地质条件限制、地下转化轻质油、高采出程度、较低污染等技术优势的特点,综合考虑鄂尔多斯盆地延长组7段页岩厚度、页岩有机质丰度、热演化程度和现今埋深等地质参数,评价优选试验有利区主要分布在盆地东南部,其中埋深小于1 500 m的分布面积大于6 000 km^2.页岩选区评价结果表明,鄂尔多斯盆地陆相页岩是原位转化/改质技术工业试验的有利页岩分布区.Compared with the multi-stage horizontal well fracturing technology facilitating development of shale gas and tight oil, in-situ conversion/upgrading processing is more suitable for development of liquid hydrocarbons in broad continental shale formations with the maturity of 0. 5% -1.0% and total organic carbon of over 6% in China. This technology has several unique advantages including wide applicability to various geologic conditions, underground conversion to light oil, high oil recovery, and lower environmental pollution. Based on the requirements of this technology, together with key geologic parameters of Yanchang-7 shale, including thickness, organic matter abundance, thermal evolution degree, and burial depth, the pilot areas are selected in the southeastern part of the basin, with area of over 6 000 km2 and buried depth less than 1 500 m. The selection result of the pilot areas indicates that, the lacustrine shales in the Ordos Basin will be favourable shale areas for the industrial test of in-situ conversion/upgrading processing.

关 键 词：页岩油 页岩层系液态烃 陆相页岩层系 原位转化技术 原位改质技术 鄂尔多斯盆地 资源潜力 致密油 

分 类 号：TE311[石油与天然气工程—油气田开发工程]