SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT

doi:10.2172/1047866

GSTDTAP > 地球科学

DOI	10.2172/1047866
报告编号	RPP-RPT-50452 Rev 0
来源ID	OSTI ID: 1047866
	SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT
	[null]
	2011-10-04
出版年	2011
语种	英语
国家	美国
领域	地球科学
英文摘要	This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/5472
专题	地球科学
推荐引用方式 GB/T 7714	[null]. SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT,2011.