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Peng Yang - One of the best experts on this subject based on the ideXlab platform.
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tectono thermal evolution of cambrian ordovician source rocks and implications for Hydrocarbon Generation in the eastern tarim basin nw china
Journal of Asian Earth Sciences, 2020Co-Authors: Peng Yang, Zhanli Ren, Renjie Zhou, Jianxin Zhao, Liping ZhangAbstract:Abstract The tectono-thermal evolution is an important control on petroliferous basin development; however, this evolution is difficult to reconstruct in sedimentary basins subjected to multiple tectono-thermal events. The Tarim Basin is the largest petroliferous basin in northwestern China and hosts a complex oil–gas system comprising several sets of source, reservoir, and cap rocks that have experienced multiple tectonic, thermal, and sedimentary events. Large oil and gas reserves have been discovered in the central and northern Tarim Basin during the last 30 years, but none in the eastern part of the basin. This is generally attributed to the high thermal maturity reached by source rocks during the Late Ordovician, and subsequent Hydrocarbon loss. Therefore, reconstructing the Cambrian–Ordovician tectono-thermal evolution is critical in facilitating successful oil and gas exploration in this region. We compiled equivalent vitrinite reflectance data (n = 178) of source rocks from seven wells in the Tarim Basin, which for Cambrian–Ordovician source rocks are >1.3%, beyond the Hydrocarbon Generation threshold and in the main gas and dry gas Generation stages. The Cambrian–Ordovician source rocks experienced rapid burial and heating during the Caledonian period, entered the Hydrocarbon Generation stage during the Middle–Late Ordovician, and reached peak Hydrocarbon Generation at the end-Caledonian period. They might have experienced secondary Hydrocarbon Generation after the Jurassic. Homogenization temperatures of fluid inclusions (n = 616) from wells GC4, LX1, MD1, and YD2 as well as the modeled thermal evolution reveal a main Hydrocarbon Generation event during the Caledonian period and a secondary event in the Yanshanian and Himalayan period in other wells (LX1, MD1, and YD2). Hercynian and Indosinian uplift and exhumation in the eastern Tarim Basin controlled the main structures, and faulting created favorable conditions for secondary Hydrocarbon Generation and migration at this time. Since the Yanshanian and Himalayan, the Tarim Basin has experienced further sedimentation and heating, and the tectono-thermal evolution might have been related to the formation of the Tibetan Plateau. In summary, our reconstruction of the tectono-thermal evolution of Cambrian–Ordovician strata and the Hydrocarbon Generation history of the Tarim Basin suggests that the eastern Tarim Basin may also have Hydrocarbon Generation potential and can guide future oil and gas exploration.
Liping Zhang - One of the best experts on this subject based on the ideXlab platform.
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tectono thermal evolution of cambrian ordovician source rocks and implications for Hydrocarbon Generation in the eastern tarim basin nw china
Journal of Asian Earth Sciences, 2020Co-Authors: Peng Yang, Zhanli Ren, Renjie Zhou, Jianxin Zhao, Liping ZhangAbstract:Abstract The tectono-thermal evolution is an important control on petroliferous basin development; however, this evolution is difficult to reconstruct in sedimentary basins subjected to multiple tectono-thermal events. The Tarim Basin is the largest petroliferous basin in northwestern China and hosts a complex oil–gas system comprising several sets of source, reservoir, and cap rocks that have experienced multiple tectonic, thermal, and sedimentary events. Large oil and gas reserves have been discovered in the central and northern Tarim Basin during the last 30 years, but none in the eastern part of the basin. This is generally attributed to the high thermal maturity reached by source rocks during the Late Ordovician, and subsequent Hydrocarbon loss. Therefore, reconstructing the Cambrian–Ordovician tectono-thermal evolution is critical in facilitating successful oil and gas exploration in this region. We compiled equivalent vitrinite reflectance data (n = 178) of source rocks from seven wells in the Tarim Basin, which for Cambrian–Ordovician source rocks are >1.3%, beyond the Hydrocarbon Generation threshold and in the main gas and dry gas Generation stages. The Cambrian–Ordovician source rocks experienced rapid burial and heating during the Caledonian period, entered the Hydrocarbon Generation stage during the Middle–Late Ordovician, and reached peak Hydrocarbon Generation at the end-Caledonian period. They might have experienced secondary Hydrocarbon Generation after the Jurassic. Homogenization temperatures of fluid inclusions (n = 616) from wells GC4, LX1, MD1, and YD2 as well as the modeled thermal evolution reveal a main Hydrocarbon Generation event during the Caledonian period and a secondary event in the Yanshanian and Himalayan period in other wells (LX1, MD1, and YD2). Hercynian and Indosinian uplift and exhumation in the eastern Tarim Basin controlled the main structures, and faulting created favorable conditions for secondary Hydrocarbon Generation and migration at this time. Since the Yanshanian and Himalayan, the Tarim Basin has experienced further sedimentation and heating, and the tectono-thermal evolution might have been related to the formation of the Tibetan Plateau. In summary, our reconstruction of the tectono-thermal evolution of Cambrian–Ordovician strata and the Hydrocarbon Generation history of the Tarim Basin suggests that the eastern Tarim Basin may also have Hydrocarbon Generation potential and can guide future oil and gas exploration.
Sinopec Petroleum - One of the best experts on this subject based on the ideXlab platform.
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Types and Hydrocarbon Generation potential of the Permian source rocks in the Sichuan Basin
Oil and Gas Geology, 2012Co-Authors: Sinopec PetroleumAbstract:Based on samples from outcrops and cores, we analyzed various geochemical parameters such as ele-mental component, Rock-Eval and carbon isotopes of the Permian source rocks. The kerogens of the Permian source rocks are dominated by type Ⅱ, with local occurrence of type Ⅰ and/or Ⅲ kerogens. Their Hydrocarbon Generation capacity is determined by the total organic carbon(TOC) and Rock-Eval parameters. In general,mudstones have a higher TOC, and greater potential for Hydrocarbon Generation than limestones. We restored the Hydrocarbon Generation potentials of marine mudstonse and limestones with high thermal maturity, which is necessary for the evaluation of the highly mature source rocks in South China. The Permian source rocks in SichuanBasin are generally of high thermal maturity at high to post mature stages. During the Early Cretaceous, the Permian source rocks entered into peak Hydrocarbon Generation and contributed to late gas accumulation in the upper marine assemblage in South China.
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A study on theories of basin evolution and Hydrocarbon Generation and accumulation and model of Hydrocarbon Generation in finite spaces
Oil and Gas Geology, 2008Co-Authors: Sinopec PetroleumAbstract:An analysis of current models for calculating volume of Hydrocarbon Generation points out problems that may exist in quantitative study of Hydrocarbon Generation and reservoiring through calculating volume of hy- drocarbon Generation by using residual organic carbon.Based on the evolution law of the Mesozoic and Cenozoic basins in East China,the paper analyzes the evolutionary features of basins evolution phases and Hydrocarbon ac- cumulation processes,explores the relationship between the Hydrocarbon source rock and porous diagenesis,and then builds up a new model for quantitative calculating Hydrocarbon accumulation amount in limited spaces.
Li Shu-jun - One of the best experts on this subject based on the ideXlab platform.
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Later Hydrocarbon Generation Potential of Upper Paleozoic Source Rock in Southern North China
Natural Gas Geoscience, 2011Co-Authors: Li Shu-junAbstract:The upper Paleozoic source rocks include dark mudstone in coal measures,coal,and carbonaceous mudstone in the southern north China.In the primary sedimentary settings,the thickness of Carboniferous and Permian source rocks in the southern north China is larger than that in the north Bohai Bay basin.The upper Paleozoic source rock went through three times of Hydrocarbon Generation: early Indosinian,Yanshanian,and late Himalayan.In some places(i.e Kaifeng sag,Luoyang-Yichuan,Hefei basin,Qiuxian-Guanxian sag,Huangkou sag,Tangzhuang-Shenqiu sag),the Hydrocarbon source rock reached the highest thermal maturity and the maximum Hydrocarbon Generation at the Yanshan Period and ceased the Hydrocarbon Generation at the Himalayan Period.In the Bohai Bay basin,the late Hydrocarbon Generation potential of source rocks in the areas of HuiMing,DongPu,DongYing,ZhanHua is large,but general in the areas of Chezheng,north Xinxian sag,Luyi,and Niqiuji.
Renjie Zhou - One of the best experts on this subject based on the ideXlab platform.
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tectono thermal evolution of cambrian ordovician source rocks and implications for Hydrocarbon Generation in the eastern tarim basin nw china
Journal of Asian Earth Sciences, 2020Co-Authors: Peng Yang, Zhanli Ren, Renjie Zhou, Jianxin Zhao, Liping ZhangAbstract:Abstract The tectono-thermal evolution is an important control on petroliferous basin development; however, this evolution is difficult to reconstruct in sedimentary basins subjected to multiple tectono-thermal events. The Tarim Basin is the largest petroliferous basin in northwestern China and hosts a complex oil–gas system comprising several sets of source, reservoir, and cap rocks that have experienced multiple tectonic, thermal, and sedimentary events. Large oil and gas reserves have been discovered in the central and northern Tarim Basin during the last 30 years, but none in the eastern part of the basin. This is generally attributed to the high thermal maturity reached by source rocks during the Late Ordovician, and subsequent Hydrocarbon loss. Therefore, reconstructing the Cambrian–Ordovician tectono-thermal evolution is critical in facilitating successful oil and gas exploration in this region. We compiled equivalent vitrinite reflectance data (n = 178) of source rocks from seven wells in the Tarim Basin, which for Cambrian–Ordovician source rocks are >1.3%, beyond the Hydrocarbon Generation threshold and in the main gas and dry gas Generation stages. The Cambrian–Ordovician source rocks experienced rapid burial and heating during the Caledonian period, entered the Hydrocarbon Generation stage during the Middle–Late Ordovician, and reached peak Hydrocarbon Generation at the end-Caledonian period. They might have experienced secondary Hydrocarbon Generation after the Jurassic. Homogenization temperatures of fluid inclusions (n = 616) from wells GC4, LX1, MD1, and YD2 as well as the modeled thermal evolution reveal a main Hydrocarbon Generation event during the Caledonian period and a secondary event in the Yanshanian and Himalayan period in other wells (LX1, MD1, and YD2). Hercynian and Indosinian uplift and exhumation in the eastern Tarim Basin controlled the main structures, and faulting created favorable conditions for secondary Hydrocarbon Generation and migration at this time. Since the Yanshanian and Himalayan, the Tarim Basin has experienced further sedimentation and heating, and the tectono-thermal evolution might have been related to the formation of the Tibetan Plateau. In summary, our reconstruction of the tectono-thermal evolution of Cambrian–Ordovician strata and the Hydrocarbon Generation history of the Tarim Basin suggests that the eastern Tarim Basin may also have Hydrocarbon Generation potential and can guide future oil and gas exploration.