低温微生物在松辽盆地西斜坡油砂原位试采中的应用  

Application of low temperature microorganism in in-situ pilot production of oil sand in western slope of Songliao Basin

作　　者：李锋 仝立华[1,2] 刘衍彤 徐银波[1,2] 张家强 石磊 LI Feng;TONG Lihua;LIU Yantong;XU Yinbo;ZHANG Jiaqiang;SHI Lei(Oil and Gas Survey,China Geological Survey,Beijing 100083,China;The Key Laboratory of Unconventional Petroleum Geology,China Geological Survey,Beijing 100083,China;Xinjiang Xinyitong Petroleum Technology Co.,Ltd.,Karamay 834000,China)

机构地区：[1]中国地质调查局油气资源调查中心,北京100083 [2]中国地质调查局非常规油气地质重点实验室,北京100083 [3]新疆新易通石油科技有限公司,新疆克拉玛依834000

出　　处：《中国矿业》2022年第3期142-148,共7页China Mining Magazine

摘　　要：油砂作为常规石油重要的补充能源之一,具有可观的开发利用前景。原位开采不受场地规模限制,采矿过程不会污染地表环境,因此,原位开采已经逐步成为油砂的主要开发方式,但是由于各工作区具体地质条件和油砂油的不同特点,采取的手段大相径庭。本文在松辽盆地西斜坡探索了低温条件下多薄层油砂的微生物冷采技术,通过定向分离和评价储层流体中内源生物群落和外源生物群落的组分、结构及功能特性,成功研制了适合低温环境下分离油砂油的微生物试剂,实现了在5~10℃的缺氧环境下对油砂油高效乳化和降黏作用,降黏率达到49.1%。本次油砂试采先导试验工程的成功,对于松辽盆地西斜坡油砂油的开采利用具有重要的现实意义。As one of the important supplementary energy sources for conventional petroleum,oil sands have considerable prospects for development and utilization.In-situ mining of oil sands is not limited by the size of the site,and the mining process will not pollute the surface environment.Therefore,in-situ mining has gradually become a main development method for oil sands.However,due to the specific geological conditions and characteristics of the oil sands and oils in each work area,the methods of development adopted are quite different.In this paper,the microbial cold recovery technology of multi thin layer oil sand under low temperature conditions is explored in the west slope of Songliao Basin.Through directional separation and evaluation of the components,structure and functional characteristics of endogenous and exogenous biological communities in reservoir fluid,the microbial reagent suitable for separating oil sand oil under low temperature environment is successfully developed.The high-efficiency emulsification and viscosity reduction of oil sand oil under anoxic environment of 5-10℃are realized,and the viscosity reduction rate is 49.1%.The success of the pilot project of oil sand pilot production has important practical significance for the exploitation and utilization of oil sand oil in western slope of Songliao Basin.

关 键 词：油砂 低温微生物 原位开采 松辽盆地 降黏率 

分 类 号：P618[天文地球—矿床学]