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A comprehensive SEG China Student Event, including a China Student Chapter Leaders Meeting and a Challenge Bowl, was held on the campus of China University of Petroleum (Beijing), on 18โ19 April 2013. This event was cohosted by SEG China and China University of Petroleum (Beijing), and was sponsored by SEG and Laurel Technology Co. Ltd.
Characteristics of Sea Level Change Along China Coast During 1968-2017
Gao, Zhigang (National Marine Data and Information Service) | Wang, Hui (National Marine Data and Information Service) | Li, Wenshan (National Marine Data and Information Service) | Liu, Qiulin (National Marine Data and Information Service) | Fan, Wenjing (National Marine Data and Information Service) | Gao, Tong (National Marine Data and Information Service) | Jin, Bowen (National Marine Data and Information Service) | Pan, Song (National Marine Data and Information Service)
ABSTRACT Sea level change in China Coast shows a fluctuant ascending trend. During last 50 years, coastal sea level of China is as a whole on trend of fluctuant ascending, the ascending rate of which is different from time to time. In 1980โ2017, the sea level rise rate is 3.3 mm/yr on average. Sea level change along China coast presents remarkable regional characteristics. The most obvious rise is on the coasts of Tianjin, Shandong, Jiangsu and Hainan, followed by the coasts of Liaoning, Shanghai, Zhejiang, Fujian and Guangxi, with the slowest rise in coastal areas of Hebei. Compared with multi-year average, sea level of the Pearl River estuary and the western Hainan coast increased most greatly, with a range of 120mm. Sea level rise in China Coast presents prominent inter-annual variation and inter-decadal variation characteristics. And the oscillation of 4โ7yr is most prominent in South China Sea and East China Sea, whose amplitude is close to 1.1cm. Sea level along coastal regions of China takes on strong seasonal variation. Seasonal sea level change is larger in the north than in the south, and annual variation decreases from the north to the south. The lowest lunar-mean sea levels are usually in winter and spring, while the highest levels are usually in summer and autumn. From north to south, highest lunar-mean occurs from July to October, with a difference of nearly 3 months, and annual sea level variation varies from 60cm to 20โ30cm correspondingly. INTRODUCTION Under the background of global warming, sea level change has become an important indicator of global climate change. Sea level changes represent an integration of many aspects of climate change, and thus occur over a broad range of temporal and spatial scales. The primary contributors to sea level change are the expansion of the ocean as it warms and the transfer of water currently stored on land, particularly from glaciers and ice sheets (IPCC, 2013; IPCC, 2007; Nerem et al., 2006; Church et al., 2011). According to the IPCC Fifth Assessment Report (IPCC, 2013), the global average sea level rise rate is 1.7mm/yr during 1901โ2010, while the rates of increase from 1971 to 2010 and from 1993 to 2010 are 2.0 mm/yr and 3.2 mm/yr, respectively.
[1]P5 Synthetical Evaluation Oil and Gas Resources and the Models of Hydrocarbon and Pool Development in the Sedimentary Basins of the South China Sea
Jinmin, Wu (Institute of Guangzhou Marine Geological Survey, China) | Hong, Xu (Institute of Marine Geology, China) | Qianzhong, Cai (Institute of Marine Geology, China)
Abstract. Forty-five sedimentary basins that can be divided into ten types have been found in the South China Sea so far, and synthetical evaluation of their oil and gas resources has to include the contents of shallow, intermediate and deep levels. This paper reviews the evaluation results of different levels. It analyses the environment, courses and consequences of region struction, and distribution or character of strata, seismic facies and typical sedimentary facies, evaluates main conditions of source beds, reservoir beds, traps, producing hydrocarbondraining off hydrocarbon and gathering-pool development, and differentiates the models of hydrocarbon and pool development in the five large basins such as the Wan'an and Zhujiangkou Basins from those in the six large basins such as the Yinggehai and Brunei-Sabah Basins. Through computed basin's total source amounts and part source amounts, dynamic imitating and quantitative synthetical optimization evaluation from basin to zone, the rough knowledge of โCircum-South China Sea Petroleum Zoneโ is expounded. 1. SHALLOW HORIZONS: ANALYSIS AND EVALUATION OF BASIC GEOLOGIC FEATURES The work is based on the knowledge of geologic structure and evolution of Pre-Tertiary and Tertiary in the South China Sea. Through synthetical researches of plate, micro-plate, land mass and orogenic belt, we recognize the processes and consequences of land mass breakup, collision-accretion and then resetting. It is pointed out that a series of Tertiary sedimentary basins have developed in the tensional fracture zone in the north, tensional compression zone in the south, shear-slip zone in the west and subduction-compression zone in the east of the South China Sea. These basins, totalling 45 in number, cover an area of 1176051 km2 and embrace ten basin types, namely, intracontinental fault depression type, continental margin rift type, strikeslip type, peripheral fore land type, slip-peripheral foreland type, shear tensional type, breakup type, back arc foreland type, forearc type and deep-sea sedimentary type. Most of the basin types are advantageous for oil and gas formation. The sedimentary strata are divided into five parts: west area, south area, central area, northeast area and north area. The basins initially developed in sea area, and transgression came from east to west, and thus such sedimentary environment as land in the west and sea in the east was formed. Stratigraphic systems are distinct in different places and interbasin areas. Sixteen seismic facies in gentle slopes, along the coast, in deep depressions and on ste
- Geology > Structural Geology > Tectonics > Plate Tectonics (0.90)
- Geology > Structural Geology > Tectonics > Compressional Tectonics > Fold and Thrust Belt (0.54)
- Asia > China > South China Sea > Zhujiangkou Basin (0.99)
- Asia > Malaysia > Sabah > South China Sea > Sabah Basin (0.94)
- Asia > China > South China Sea > Yinggehai Basin (0.94)
Two of China's national oil and gas companies are celebrating discoveries that signal a growing focus on the country's deepest formations. Sinopec said this month it made "a major breakthrough for China's shale-gas exploration" after its tight-gas unit discovered an estimated 387.8 Bcm (13.7 Tcf) of new reserves in the Sichuan Basin. This is based on the results of an exploration gas well that the Beijing-headquartered operator said achieved a daily initial production peak at 258,600 m3 (9.1 MMcf/D). Most notably, the project is being hailed by Sinopec for bolstering the potential of the Sichuan's Cambrian-period Qiongzhusi formation which is a shale layer that ranges in depth from 4000 to 6000 m. As China's leading shale-gas producer, Sinopec has drilled a number of test wells in the formation in recent years.
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Asia Government > China Government (0.94)
- Asia > China > South China Sea > Yinggehai Basin > Lingshui Formation (0.99)
- Asia > China > Sichuan > Sichuan Basin (0.99)
After a five-day intensive competition, the inaugural Oriental Cup National Exploration Geophysics Competition for College Students (NEGCCS) in China came to a successful close on 27 October 2013 at BGP's training center in Zhuozhou, China.
- Energy > Oil & Gas > Upstream (0.73)
- Government > Regional Government > Asia Government > China Government (0.36)