冷泉气体渗漏过程海洋多电极电阻率法探测效果模拟分析

尚可旭; 郭秀军; 吴景鑫; 贾永刚

doi:10.3969/j.issn.0253-4193.2017.11.008

冷泉气体渗漏过程海洋多电极电阻率法探测效果模拟分析

doi: 10.3969/j.issn.0253-4193.2017.11.008

1.
中国海洋大学环境科学与工程学院, 山东青岛 266100
2.
中国海洋大学环境科学与工程学院, 山东青岛 266100;山东省海洋环境地质工程重点实验室, 山东青岛 266100

基金项目: 国家自然科学基金重大科研仪器研制项目（41427803）；国家重点研发项目（2017YFC0307701）；国家自然科学基金项目（41772307）。

计量
- 文章访问数: 632
- HTML全文浏览量: 7
- PDF下载量: 470
- 被引次数: 0
出版历程
- 收稿日期: 2016-12-08
- 修回日期: 2017-03-20

Detecting cold spring gas leakage in seabed sediment with marine multi-electrode resistivity method: numerical simulation and experiment

1.
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
2.
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Environment and Geological Engineering of Shandong Province, Qingdao 266100, China

摘要

摘要: 为分析评价一种新型海洋多电极电阻率法对海底沉积物中冷泉气体渗漏过程的探测能力，根据前人理论研究，结合具体实例构建沉积物中快速及慢速冷泉气体汇聚、渗漏、喷发阶段地电模型，模拟采用海洋多电极电阻率法进行探测，利用数值计算方法得到理论剖面图像，并和室内实验实测剖面图像进行对比分析。研究结果表明，在快速冷泉探测剖面图像中，含气层和渗漏通道会因冷泉气体扩散状态不同表现为不同的电阻率异常特征，但易于识别。在慢速冷泉探测剖面图像中，浅层沉积物中气体富集区呈明显的高阻异常区，随着气体渗漏异常区逐步消失。两种喷发过程形成的微地貌特征也可在探测图像中得到反映。海洋多电极电阻率法是一种可以图化描述沉积物中含气层、渗漏通道及气液界面空间分布位置的有效方法。
- 冷泉 /
- 气体渗漏 /
- 海洋多电极电阻率法 /
- 异常图像
Abstract: Ability of marine multi-electrode resisitivity method to detect the process of cold spring gas leakage in seabed sediment would been analysed and evaluated in this paper. In order to meet this object, on the base of predecessors' research results and some concrete examples, the geoelectric models of sediments were built, then theoretical electrical resisitivity sections were calculated while marine multi-electrode resisitivity method was used to detect the gathering, leaking and erupting of fast or slow cold spring gas in seabed sediment. Compare the numerical simulation resisitivity images and experimental ones, some results have been generalized. In the detected section images of rapid cold spring. Gas bearing layer and leakage passages in different phases of leakage performanced for different anomaly resistivity image characteristics, but they were easy to identify. In the detected section images of slow cold spring, gas enrichment region in shallow sediment showed obvious high resistivity anomaly. As the gas leaked, abnormal area gradually disappeared. Two types of landforms formed by gas eruption process could also be reflected in the detected images. Marine multi-electrode resisitivity method was proved to be an effective method which could describe the gas bearing layer, leakage passage and spatial distribution of gas and liquid interface position with measured anomaly images.
- cold spring /
- gas leakage /
- marine multi-electrode resistivity method /
- anomaly image

HTML全文

参考文献(22)

陈忠, 杨华平, 黄奇瑜, 等. 海底甲烷冷泉特征与冷泉生态系统的群落结构[J]. 热带海洋学报, 2008, 26(6):73-82. Chen Zhong, Yang Huaping, Huang Qiyu, et al. Characteristics of cold seeps and structures of chemoauto-synthesis-based communities in seep sediments[J]. Journal of Tropical Oceanography, 2008, 26(6):73-82.

Stapleton C. Descriptive acoustic analysis of a newly-discovered marine seep[C]//The University of Washington School of Oceanography Senior Thesis, 2013.

李灿苹, 刘学伟, 赵罗臣. 天然气水合物冷泉和气泡羽状流研究进展[J].地球物理学进展, 2013, 28(2):1048-1056. Li Canping, Liu Xuewei, Zhao Luochen. Progress on cold seeps and bubble plumes produced by gas hydrate[J]. Progress in Geophysics, 2013, 28(2):1048-1056.

王淑红, 宋海斌, 颜文. 地球系统中的天然气水合物天然气体系研究展望[J].地球物理学进展, 2006, 21(1):232-243. Wang Shuhong, Song Haibin, Yan Wen. Study expectation of gas hydrate-gas system in earth system[J]. Progress in Geophysics, 2006, 21(1):232-243.

Tryon M D, Brown K M. Complex flow patterns through Hydrate Ridge and their impact on seep biota[J]. Geophysical Research Letters, 2001, 28(14):2863-2866.

Leifer I, Boles J. Measurement of marine hydrocarbon seep flow through fractured rock and unconsolidated sediment[J]. Marine and Petroleum Geology, 2005, 22(4):551-568.

Washburn L, Johnson C, Gotschalk C C, et al. A gas-capture buoy for measuring bubbling gas flux in oceans and lakes[J]. Journal of Atmospheric & Oceanic Technology, 2001, 18(8):1411-1420.

Roberts D A, Bradley E S, Cheung R, et al. Mapping methane emissions from a marine geological seep source using imaging spectrometry[J]. Remote Sensing of Environment, 2010, 114(3):592-606.

邸鹏飞, 陈庆华, 陈多福. 海底冷泉渗漏气体流量原位在线测量技术研究[J]. 热带海洋学报, 2012, 31(5):83-87. Di Pengfei, Chen Qinghua, Chen Duofu. In situ on-line measuring device of gas seeping flux at marine seep sites and experimental study[J]. Journal of Tropical Oceanography, 2012, 31(5):83-87.

White S N, Dunk R M, Peltzer E T, et al. In situ Raman analyses of deep-sea hydrothermal and cold seep systems (Gorda Ridge and Hydrate Ridge)[J]. Geochemistry Geophysics Geosystems, 2006, 7(5):153-164.

Wintersteller P, dos Santos Ferreira C, Klaucke I, et al. Mapping cold seeps with high-resolution deep water multibeam echosounders in the Black Sea[C]//AGU Fall Meeting Abstracts.2011, 1: 1526.

王秀娟, 吴时国, 刘学伟, 等. 基于测井和地震资料的神狐海域天然气水合物资源量估算[J]. 地球物理学进展, 2010, 25(4): 1288-1297. Wang Xiujuan, Wu Shiguo, Liu Xuewei, et al. Estimation of gas hydrates resources based on well log data and seismic data in Shenhu area[J]. Progress in Geophysics, 2010, 25(4): 1288-1297.

Garcia-Gil S, Vilas F, Garcia-Garcia A. Shallow gas features in incised-valley fills (Rıa de Vigo, NW Spain): a case study[J]. Continental Shelf Research, 2002, 22(16): 2303-2315.

陈林, 宋海斌. 海底天然气渗漏的地球物理特征及识别方法[J]. 地球物理学进展, 2005, 20(4): 1067-1073. Chen Lin, Song Haibin. Geophysical features and identification of natural gas seepage in marine environment[J]. Progress in Geophysics, 2005, 20(4): 1067-1073.

Lagabrielle R. The effect of water on direct current resistivity measurements from the sea, river or lakefloor[J]. Geoexploration, 1983, 21(2):165-170.

Loke M H, Barker R D. Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method[J]. Geophysical Prospecting, 1996, 44(1):131-152.

Goto T, Kasaya T, Machiyama H, et al. A marine deep-towed DC resistivity survey in a methane hydrate area, Japan Sea[J]. Exploration Geophysics, 2008, 39(1):52-59.

陈多福, 陈先沛, 陈光谦. 冷泉流体沉积碳酸盐岩的地质地球化学特征[J]. 沉积学报, 2002, 20(1):34-40. Chen Duofu, Chen Xianpei, Chen Guangqian. Geology and geochemistry of cold seepage and venting-related carbonates[J]. Acta Sedimentologica Sinica, 2002, 20(1):34-40.

陈忠, 颜文, 陈木宏, 等. 海底天然气水合物分解与甲烷归宿研究进展[J]. 地球科学进展, 2006, 21(4): 394-400. Chen Zhong, Yan Wen, Chen Muhong, et al. Advances in gas hydrate dissociation and fate of methane in marine sediment[J]. Advances in Earth Science, 2006, 21(4):394-400.

Naudts L, Greinert J, Poort J, et al. Active venting sites on the gas-hydrate-bearing Hikurangi Margin, off New Zealand: Diffusive-versus bubble-released methane[J]. Marine Geology, 2010, 272(1):233-250.

苏正, 曹运诚, 吴能友, 等. 水合物层下伏游离气渗漏过程的数值模拟及实例分析[J]. 地球物理学报, 2009(12):3124-3131. Su Zheng, Cao Yuncheng, Wu Nengyou, et al. Numerical computation and case analysis of the venting process of free gas beneath hydrate layer[J]. Chinese Journal of Geophysics, 2009(12):3124-3131.

杨克红, 初凤友, 赵建如, 等. 南海北部烟囱状冷泉碳酸盐岩的沉积环境分析[J]. 海洋学报, 2013, 35(2): 82-89. Yang Kehong, Chu Fengyou, Zhao Jianru, et al. Sedimentary environment of the cold seep carbonate chimneys,north of the South China Sea[J]. Haiyang Xuebao, 2013, 35(2): 82-89.

施引文献

资源附件(0)

访问统计