甘肃省页岩气资源潜力分析及资源评价中地球物理技术应用探讨

RESOURCE POTENTIAL AND APPLICATION OF GEOPHYSICAL TECHNIQUE FOR SHALE GAS IN GANSU PROVINCE

页岩气作为一种清洁的非常规能源,是非常理想的常规油气接替资源,世界各国都掀起了页岩气勘探开发的热潮。与常规油气资源相比,页岩气具有自生自储、无气水界面、低孔低渗、大面积连续成藏等特点。甘肃省境内含油气盆地众多,具有页岩气勘探开发的优势,酒泉、民和等盆地都已经发现了一定规模的泥页岩油气藏。在后续的页岩气勘探开发中,必须重视地球物理勘查技术的应用,地震、测井以及非震等勘探技术是页岩气勘探开发必不可少的手段,尤其是时频电磁法、大地电磁测深法、连续电磁剖面法等非震技术已经成功应用在页岩气勘探中。

As a clean non-conventional energy, shale gas can be used as an ideal alternative resources for conventional oil and gas. Now, the world set off a boom in shale gas exploration. Compared with conventional resources, shale gas has many features, such as self storage, no air-water interface, low porosity and permeability and so on. Gansu Province have the advantages of shale gas exploration and development because of many basins. Jiuquan basin and Minhe basin have discovered a certain number of shale oil and gas. In the subsequent shale gas exploration and development, the application of geophysical exploration technology must be taken seriously. Seismic, log and non-seismic and other geophysical exploration technology for shale gas is an essential method, especially time-frequency electromagnetic method, continuous electromagnetic profiling method and other non- seismic technology has been successfully applied in shale gas exploration.