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Progress in Global Gas Hydrate Development and Production as a New Energy Resource

Acta Geologica Sinica(English Edition) 2019年第3期93卷 731-755页

作者： LIU Liping SUN Zhilei ZHANG Lei WU Nengyou Yichao Qin JIANG Zuzhou GENG Wei CAO Hong ZHANG Xilin ZHAI Bin XU Cuiling SHEN Zhicong JIA Yonggang College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100ShandongChina Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071ShandongChina The Key Laboratory of Gas Hydrate Ministry of Natural ResourcesQingdao Institute of Marine GeologyQingdao 266071ShandongChina Drilling Technology Research institute of Shengli Petroleum Engineering Corporation Limited SINOPECDongying 257017ShandongChina Linyi University Linyi276000ShandongChina

Natural gas hydrates have been hailed as a new and promising unconventional alternative energy,especially as fossil fuels approach depletion,energy consumption soars,and fossil fuel prices rise,owing to their extensive distribution,abundance,and high fuel *** hydrate reservoirs are similar to a storage cupboard in the global carbon cycle,containing most of the world's methane and accounting for a third of Earth's mobile organic *** investigated gas hydrate stability zone burial depths from the viewpoint of conditions associated with stable existence of gas hydrates,such as temperature,pressure,and heat flow,based on related data collected by the global drilling ***-related areas are estimated using various biological,geochemical and geophysical *** on a series of previous investigations,we cover the history and status of gas hydrate exploration in the USA,Japan,South Korea,India,Germany,the polar areas,and ***,we review the current techniques for hydrate exploration in a global ***,we briefly review existing techniques for recovering methane from gas hydrates,including thermal stimulation,depressurization,chemical injection,and CH4-CO2 exchange,as well as corresponding global field trials in Russia,Japan,United States,Canada and *** particular,unlike diagenetic gas hydrates in coarse sandy sediments in Japan and gravel sediments in the United States and Canada,most gas hydrates in the northem South China Sea are non-diagenetic and exist in fine-grained sediments with a vein-like ***,especially in terms of the offshore production test in gas hydrate reservoirs in the Shenhu area in the north slope of the South China Sea,Chinese scientists have proposed two unprecedented techniques that have been verified during the field trials:solid fluidization and formation fluid ***,we introduce the two production techniques,as well as the so-called"fbur-in-one"environmental monitoring

关键词： natural gas hydrate gas recovery production technique shallow gas hydrate environmental monitoring

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Sparse constrained encoding multi-source full waveform inversion method based on K-SVD dictionary learning

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Applied Geophysics 2020年第1期17卷 111-123,169页

作者： Guo Yun-dong Huang Jian-Ping Cui Chao LI Zhen-Chun LI Qing-Yang Wei Wei School of Geosciences China University of Petroleum(East China)Qingdao 266580China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China geophysical exploration Research institute of Zhongyuan Oilfi eld Company Puyang 457001China SINOPEC Petroleum exploration and Production Research institute Beijing 100083China

Full waveform inversion(FWI)is an extremely important velocity-model-building ***,it involves a large amount of calculation,which hindsers its practical *** multi-source technology can reduce the number of forward modeling shots during the inversion process,thereby improving the ***,it introduces crossnoise *** this paper,we propose a sparse constrained encoding multi-source FWI method based on K-SVD dictionary *** phase encoding technology is introduced to reduce crosstalk noise,whereas the K-SVD dictionary learning method is used to obtain the basis of the transformation according to the characteristics of the inversion *** multiscale inversion method is adopted to further enhance the stability of ***,the synthetic subsag model and the Marmousi model are set to test the effectiveness of the newly proposed *** of the results suggest the following:(1)The new method can effectively reduce the computational complexity of FWI while ensuring inversion accuracy and stability;(2)The proposed method can be combined with the time-domain multi-scale FWI strategy flexibly to further avoid the local minimum and to improve the stability of inversion,which is of significant importance for the inversion of the complex model.

关键词： K-SVD dictionary sparsity constraint polarity encoding multi-source full waveform inversion

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Research and exploration progress on lithium deposits in China

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China Geology 2020年第1期3卷 137-152页

作者： Deng-hong Wang Hong-zhang Dai Shan-bao Liu Cheng-hui Wang Yang Yu Jing-jing Dai Li-jun Liu Yue-qing Yang Sheng-chao Ma Ministry of Natural Resources Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China Sichuan institute of Geology&Mineral Resources Bureau of Geology and Mineral Exploration&Development of Sichuan ProvinceChengdu 610000China

Since 2012,some advances have been made through the resource investigation,metallogenesis research,and comprehensive utilizing of lithium deposits in ***,the progress of lithium exploration has been made in Sichuan,Xinjiang,Qinghai and Jiangxi provinces(autonomous region).Li deposits are not only found within the pegmatite rocks but also within the granitic rocks and sedimentary ***,the methods of geological survey,geochemical and geophysical exploration,remote sensing technology and even drilling technology have been improved,which can be delineating orebodies ***,the mechanisms of Li mineralization were summarized by analyzing the relationship between the Li contents and kinds of geological *** on practice,a new understanding of"multi-cycle,deep circulation,integration of internal and external"metallogenic mechanism or"MDIE"metallogenic mechanism for short has been put forwarded further in this paper,and the"five levels+basement"exploration model has been successfully expanded to guide the prospecting work both in the Jiajika and Keeryin pegmatite ore fields in western Sichuan ***,new progress has been made in the aspect of amblygonite deposits of granite-type and hydrothermal type in the Mufushan-Jiuling ore district,which points out a new direction for prospecting new types of lithium deposits in China.

关键词： Lithium deposits Amblygonite "MDIE"metallogenic mechanism "Five levels+basement"exploration model Mineral exploration engineering China

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Crustal velocity structure in the Emeishan large igneous province and evidence of the Permian mantle plume activity

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Science China Earth Sciences 2015年第5期58卷 1133-1147页

作者： XU Tao ZHANG ZhongJie LIU BaoFeng CHEN Yun ZHANG MingHui TIAN XiaoBo XU YiGang TENG JiWen State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences CAS Center for Excellence in Tibetan Plateau Earth Sciences geophysical exploration Center China Earthquake Administration University of Chinese Academy of Sciences State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences

The Emeishan large igneous province(ELIP) in SW China is interpreted to be associated with an ancient mantle plume. Most of the constraints on the role of mantle plume in the generation of the Emeishan flood basalts were provided by geological and geochemical methods, but the geophysical investigation is very limited. In order to better understand the deep structure and features of ELIP, we have studied the crustal velocity structure using the data acquired from the Lijiang-Panzhihua-Qingzhen wide-angle seismic profile. This profile crosses the three sub-zones of the ELIP(the inner, intermediate, and outer zones), divided based on the differential erosion and uplift of the Maokou limestone. The results provided by the active source seismic experiment demonstrate:(1) The average depth of the crystalline basement along the profile is about 2 km.(2) The middle crust in the Inner Zone is characterized by high-velocity anomalies, with the average velocity of 6.2-6.6 km/s, which is about 0.1– 0.2 km/s higher than the normal one. The velocity of the lower crust in the inner zone is 6.9-7.2 km/s, higher than those observed in the intermediate and outer zones(6.7-7.0 km/s). Relatively low velocity anomalies appear in the upper, middle and lower crusts near the junction of the inner zone and intermediate zone, probably due to the effect of the Xiaojiang fault(XJF).(3) The average velocity of the crust is comparatively low on both sides of XJF, especially on the east side, and the average velocity of the consolidated continental crust is also low there. This may suggest that the XJF extends at least down to 40 km deep, even beyond through the crust.(4) The depth to the Moho discontinuity decrease gradually from 47-53 km in the inner zone, via 42-50 km in the intermediate zone to 38-42 km in the outer zone. In the inner zone, the Moho uplifts locally and the(consolidated) crust is characterized by high-velocity anomalies, which are likely related to intensive magma intrusion an

关键词： Emeishan large igneous province Permian mantle plume wide-angle seismic reflection/refraction data Lijiang-Panzhihua-Qingzhen profile crustal velocity

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Wave Equation Decomposition in 3-D TTI Media

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石油地球物理勘探 2009年第A2期44卷 21-30页

作者： Liang Kai Wu Guo-chen Yin Xing-yao Bai Xiao-yin College of Geo-Resources and Information China University of Petroleum (East China) Dongying Shandong Province 257061 China Northwest Branch Research Institute of Petroleum Exploration and Development PetroChina Lanzhou Gansu Province 730020 China

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geochemical characteristics, genetic types, and controlling factors of natural gas in Jiyang Depression, Bohai Bay Basin (eastern China)

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Frontiers of Earth Science 2022年第3期16卷 601-622页

作者： Tianchen GE Xiangchun CHANG Yuan ZHUANG Xiaojun LI College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China School of Ocean and Earth Science Tongji UniversityShanghai 200092China Petroleum exploration and Development Research institute Shengli Oilfield Company of SINOPECDongying 257015China

The Jiyang Depression is an important oil and gas production zone in the Bohai Bay *** a systematic investigation of the gas components and stable carbon isotopes,the genetic types of natural gas found in the Jiyang Depression were determined,that is,biogas,oilassociated gas,coal-derived gas,high-mature oil-related gas,and mantle-derived carbon dioxide(CO_(2)).From the results,natural gas in the Jiyang Depression can be divided into four *** I,which is distributed in the northwest area,is the only typical oil-associated *** II,distributed in the northeast area,is dominated by oil-associated gas,and involves biogas,coal-derived gas,and high-mature oil-related *** Ⅲ,distributed in the southeast area,has all genetic types of gas that are dominated by oil-associated gas and have mantle-derived CO_(2).Group IV,distributed in the southwest area,is dominated by biogas and involves coal-derived gas and oil-associated *** differences in each group illustrate the lateral distribution of the natural gas types is characterized by the eastern and southern areas being more complex than the western and northern areas,the vertical distribution of gas reservoirs has no obvious evolutionary *** main controlling factor analysis of the spatiotemporal changes of the gas reservoirs revealed that the synergy of geochemical characteristics,thermal evolution of the Shahejie Formation and Carboniferous-Permian source rocks,and sealing properties of various faults are jointly responsible for determining the gas reservoir spatiotemporal changes.

关键词： natural gas genetic types geochemical characteristics distribution law controlling factors Jiyang Depression

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Post-subdution evolution of the Northern Lhasa Terrane, Tibet: Constraints from geochemical anomalies, chronology and petrogeochemistry

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China Geology 2022年第1期5卷 84-95页

作者： Shi-mian Yu Xu-dong Ma Yan-chun Hu Wei Chen Qing-ping Liu Yang Song Ju-xing Tang Geological Museum of Guizhou Guiyang 550081China MNR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China No.1 institute of Geology and Mineral Resources of shandong province Jinan 250014China

Bangong-Nujiang collisional zone(BNCZ)is an older one in Qinghai-Tibet Plateau and resulted in the famous Bangong-Nujiang metallogenic belt,which plays an important role in evaluating the formation and uplift mechanism of *** northern and central Lhasa Terrane composed the southern part of the *** ore deposits can be used as markers of geodynamic evolution,the authors carried 1∶50000 stream sedimental geochemical exploration in the Xiongmei area in the Northern Lhasa Terrane to manifest the mineralization,and based on this mineralization with geochemical and chronological characteristics of related magmatic rocks to constrain their geodynamics and connection with the evolution of the Lhasa *** authors find Early Cretaceous magma mainly resulted in Cu,Mo mineralization,Late Cretaceous magma mainly resulted in Cu,Mo,and W mineralization in the studying *** results suggest a southward subduction,slab rolling back and break-off,and thickened lithosphere delamination successively occurred within the Northern Lhasa Terrane.

关键词： Bangong-Nujiang collisional zone geochemical anomalies Mineralization Slab rolling-back/break-off Delamination Northern Lhasa Terrane Geological survey engineering Tibet

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Research and Application of High-Density Resistivity Method in Seawater Intrusion Investigation in Laizhou Bay

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Agricultural Biotechnology 2023年第6期12卷 88-92页

作者： Yuhai HE Hongjin WANG Zengcai ZHAO Biao WANG Bin ZHANG Xiaodan WANG shandong institute of geophysical and geochemical exploration Jinan 250013China shandong Engineering and Technology Research Center of Geological exploration Jinan 250013China shandong institute of Geological Surveying Jinan 250014China shandong Engineering Research Center for Geochemistry and Pollution Prevention and Control of Land Quality Jinan 250014China

The disaster of seawater intrusion seriously affects people's lives and restricts economic development,so the detection and treatment of seawater intrusion is a long-term *** the basis of field investigation and water quality analysis,according to the change characteristics of apparent resistivity of groundwater after Cl-reaches 250 mg/L,the theoretical basis for the application of high-density resistivity method was determined,and the characteristic values of apparent resistivity for seawater intrusion interfaces in different geological characteristic regions in Laizhou Bay area were determined by typical profile *** with water quality investigation and other means,profiles for the high-density resistivity method were arranged,and the interfaces between saline and fresh water were accurately divided.

关键词： High-density resistivity method Seawater intrusion Laizhou Bay Characteristic value

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Extracting useful high-frequency information from wide-field electromagnetic data using time-domain signal reconstruction

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Journal of Central South University 2022年第11期29卷 3767-3778页

作者： LING Fan YANG Yang LI Gang ZHOU Chang-yu HUANG Min WANG Xin ZHANG Heng ZHU Yu-zhen SUN Huai-feng School of Geosciences and Info-Physics Central South UniversityChangsha 410083China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring of Ministry of Education(Central South University) Changsha 410083China Geotechnical and Structural Engineering Research Center Shandong UniversityJinan 250000China Advanced exploration and Transparent City Innovation Center Shandong Research Institute of Industrial TechnologyJinan 250101China Jinan Rail Transit Group Co. Ltd.Jinan 250101China institute of Urban Underground Space and Energy Studies the Chinese University of Hong KongShenzhen 518000China shandong Coal Geological Planning and exploration Research institute Jinan 250000China

The wide-field electromagnetic method is widely used in hydrocarbon exploration,mineral deposit detection,and geological disaster ***,apparent resistivity and normalized field amplitude exceeding 2048 Hz often exhibit upward warping in data,making geophysical inversion and interpretation *** cumulative error of the crystal oscillator in signal transmission and acquisition contributes to an upturned apparent resistivity *** address this,a high-frequency information extraction method is proposed based on time-domain signal reconstruction,which helps to record a complete current data sequence;moreover,it helps estimate the crystal oscillator error for the transmitted *** the recorded error,a received signal was corrected using a set of reconstruction *** processing,the high-frequency component of the wide-field electromagnetic data was not upturned,while accurate high-frequency information was extracted from the ***,the proposed method helped effectively extract high-frequency components of all wide-field electromagnetic data.

关键词： wide-field electromagnetic method crystal oscillator error time series signal resampling signal reconstruction

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The genesis of Archean supracrustal rocks in the western shandong province of North China Craton: Constraints on regional crustal evolution

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Science China Earth Sciences 2016年第8期59卷 1583-1596页

作者： WANG Wei ZHAI MingGuo M.SANTOSH institute of Geology Chinese Academy of Geological Sciences Key Laboratory of Mineral Resources Chinese Academy of Sciences Centre for Tectonics Resources and Exploration Department of Earth Sciences University of Adelaide School of Earth Science and Resources China University of Geosciences (Beijing)

Archean greenstone belts are supracrustal sequences, the lower part of which is usually composed of voluminous ultramafic-mafic volcanics. Intermediate and acid volcanic rocks increase in abundance towards the upper domains. Greenstone belts constitute ~30% of the total volume of Archean cratons, and preserve significant information on the surface environment and magmatism in the early earth, which are useful in unraveling the nature of crustal formation and evolution. The western shandong province(WSP) is located at the eastern part of the North China Craton(NCC), where greenstone sequences formed at ~2.7 and ~2.5 Ga were well preserved. The early Neoarchean supracrustal rocks include komatiite-basalt sequence, some meta-sediments of the lower part of the Taishan Group and the Mengjiatun Formation. The volcanism had been correlated to mantle plume, which resulted in vertical crustal accretion. The late Neoarchean supracrustal rocks were composed of metamorphosed felsic volcano-sedimentary sequences and BIFs of the upper part of the Taishan Group and the Jining Group. The geochemical features of the meta-volcanics show calc-alkaline affinities, similar to modern arc-related magmatism, suggesting that the continental crust in the western shandong province witnessed horizontal plate movements at ~2.5 Ga. The metasediments and leucosomes in the Qixingtai area display regional upper amphibolite facies metamorphism and anatexis at 2.53–2.50 Ga, coeval with formation of large volumes of crustally-derived granites. These tectono-thermal events suggest that a unified continental crust was formed in the western shandong province at the end of Neoarchean.

关键词： Supracrustal rocks Greenstone belts Taishan Group Western shandong province North China Craton

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