Results 151 to 160 of about 548 (192)
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Overpressuring mechanisms in the Yinggehai Basin, South China Sea
AAPG Bulletin, 2003Yinggehai Basin is an elongate Cenozoic rift basin on the northwestern margin of the South China Sea continental shelf. Its thick (17 km) basin fill is characterized by high geothermal gradient and high overpressure. Overpressure associated with nonequilibrium compaction mainly occurs at depths more than 2800 m at the basin center and more than 4000 m ...
Xiaorong Luo +3 more
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Tectono-thermal modeling of the Yinggehai Basin, South China Sea
Science in China Series D: Earth Sciences, 2001Based on the observed data, the average value of surface heat flow in the Yinggehai Basin is calculated and it turns out to be 84.1 mW/m 2 . The thermal evolution of the basin since the Cenozoic era has been attempted by tectono-thermal modeling. Three-phase extension made the basin become hotter and hotter, reaching its climax in paleo-temperature ...
Lijuan He +4 more
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Heat flow and thermal modeling of the Yinggehai Basin, South China Sea
Tectonophysics, 2002Abstract Geothermal gradients are estimated to vary from 31 to 43 °C/km in the Yinggehai Basin based on 99 temperature data sets compiled from oil well data. Thirty-seven thermal conductivity measurements on core samples were made and the effects of porosity and water saturation were corrected.
Lijuan He, Liangping Xiong, Jiyang Wang
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Effects of Overpressured Fluid Flow on Petroleum Accumulation in the Yinggehai Basin
Acta Geologica Sinica - English Edition, 2004Abstract The Yinggehai Basin is a strongly overpressured Cenozoic basin developed in the northern continental shelf of the South China Sea. The flow of overpressured fluids in this basin has given rise to strong effects on petroleum accumulation. (1) The overpressured fluid flow has enhanced the maturation of shallow‐buried source rocks, which has ...
HAO Fang +3 more
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The Red River Fault zone in the Yinggehai Basin, South China Sea
Tectonophysics, 2009Abstract The Red River Fault, a major strike-slip fault of onshore Southeast Asia, is suggested to be closely related to the formation of the South China Sea and uplift of the Tibetan plateau, yet published documentation of the offshore segment of the Red River Fault is sparse.
Mangzheng Zhu +2 more
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Crustal structure beneath Yinggehai basin and adjacent Hainan Island, and its tectonic implications
Journal of Earth Science, 2009Two NE-SW trending wide-angle seismic profiles were surveyed across the Chinese side of the Yinggehai (莺歌海) basin (YGHB) with ocean bottom hydrophones (OBHs) and piggyback recorded by onshore stations located on the Hainan (海南) Island. Detailed velocity-depth models were obtained through traveltime modeling and partially constrained by amplitude ...
Shimin Wu +5 more
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Natural gas generation model and its response in accumulated fluids in the Yinggehai basin
Science in China Series D: Earth Sciences, 2003The natural gases found in the Yinggehai basin have nitrogen gas content ranging from 3.5% to 35%, and carbon dioxide content ranging from 0.1% to 93%. The nitrogen and CO 2 contents show a wide variation even in the same gas field. The natural gas generation and evolution model has been established based on the relationship among the contents of ...
Fang Hao, Huayao Zou, Baojia Huang
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CO2 sequestration by mineral trapping in natural analogues in the Yinggehai Basin, South China Sea
Marine and Petroleum Geology, 2019Abstract Mineral trapping of CO2 by precipitation of carbonate minerals is seen as the most permanent and secure mechanism of CO2 storage. We have investigated mineral trapping in CO2-rich siliciclastic reservoirs of the Upper Miocene age in the Yinggehai Basin (South China Sea) and used nearby CO2-poor reservoirs of similar age as benchmarks for the
Rui Liu +9 more
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The structure and formation of diapirs in the Yinggehai–Song Hong Basin, South China Sea
Marine and Petroleum Geology, 2011Abstract The occurrence of shale diapirs in the Yinggehai–Song Hong (YGH–SH) Basin is well documented, as is their association with big petroleum fields. In order to better understand how and why the diapirs form we performed a detailed geophysical analysis using a new regional compilation of high-resolution two- and three-dimensional seismic ...
Chao Lei +5 more
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Intense fluid overpressure in the eastern slope of the Yinggehai Basin, South China Sea
The gas-bearing Yinggehai Basin in the northern South China Sea is characterized by high pressure and temperature conditions. The Miocene strata in the eastern slope exhibit intense overpressure with a pressure coefficient exceeding 2.2. Understanding the characteristics of overpressure and clarifying its causes are very important for natural gas ...Baibing Yang, Qingfeng Meng, Fang Hao
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