古地磁学在我国油气勘探开发中的应用  

Application of paleomagnetism in the exploration anddevelopment of oil and gas

作　　者：程鑫[1] 姜南 周亚楠[1] 张睿[1] 张东海 范昌育[1] 屈怡倩 王建强[1] 吴汉宁[1] CHENG Xin;JIANG Nan;ZHOU Yanan;ZHANG Rui;ZHANG Donghai;FAN Changyu;QU Yiqian;WANG Jianqiang;WU Hanning(State Key Laborary of Continental Dynamics,Department of Geology,Northwest University,Xi′an 710069,China;School of Petroleum Engineering and Environmental Engineering,Yan′an University,Yan′an 716000,China)

机构地区：[1]西北大学地质学系/大陆动力学国家重点实验室,陕西西安710069 [2]延安大学石油工程与环境学院,陕西延安716000

出　　处：《西北大学学报（自然科学版）》2022年第6期1066-1085,共20页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金(42274097,91855211,42074075,42202143,41774073);第二次青藏高原综合科学考察研究(2019QZKK0704)。

摘　　要：古地磁学作为一门典型的交叉学科,在石油和天然气勘探开发实践中已有较为广泛的应用。构造古地磁学为研究沉积盆地油气资源生成、运移和聚集的构造背景提供了重要依据。磁性地层学和旋回地层学有助于建立区域地层更精确的时间序列,为进一步开展油藏储层地层划分和勘探开发助力。利用古地磁方法恢复钻井岩心原始方位,再结合磁组构测试等方法研究储层裂缝空间展布规律,恢复沉积盆地古构造应力场,判定古水流方向和古沉积环境等,均是古地磁学与油气勘探开发实践交叉融合的重要场景。该文重点介绍了当前古地磁学在油气资源勘探开发中几个重要应用的基本原理、技术方法和新进展,并对其应用前景进行了展望,以期为未来古地磁学与油气资源勘探开发更深入的交叉融合,为我国油气勘探开发实践提供参考。As a typical interdiscipline,paleomagnetism has been widely used in the exploration and development of oil and gas resources.For example,paleomagnetic data provide an important basis for the study of the tectonic background of the generation,migration and accumulation of oil and gas resources in sedimentary basins,and the study of magnetic stratigraphy and cyclic stratigraphy accurately build the time series of regional strata,which is helpful for further reservoir stratigraphic division and exploration and development.Using paleomagnetism to restore the original orientation of drilling core,combined with magnetic fabric testing and other means to study the spatial distribution of reservoir fractures,and to restore the paleotectonic stress field in a sedimentary basin,and to determine the paleo-flow direction and paleo-sedimentary environment,which are important scenes for the cross-integration of paleomagnetism and oil and gas exploration and development practice.This paper mainly introduces the basic principles,technical methods and new progress of several important applications of paleomagnetism in the exploration and development of oil and gas resources,and looks forward to its application prospect.It is expected to provide reference for the further cross-integration of paleomagnetism and oil and gas resources exploration and development and to promote the practice of oil and gas resources exploration and development in China.

关 键 词：古地磁学 磁性地层学 岩心定向 磁化率各向异性 油气勘探开发 

分 类 号：P318[天文地球—固体地球物理学]