Abstract
Palynomorphs including spores, pollen and organic-walled microfossils and calcareous microfossils such as ostracods, charophytes and gastropods were studied for the biostratigraphic work of Kachi-1 and IIH-1Xa wells. All the microfossils yielded from two wells indicate nonmarine environment ranging from shallow lacustrine to fluvial one. The paleoclimates have been fluctuated between subtropical and cool temperate with arid/humid alternating conditions. The fluvial sandstone of the interval between 2017 m and 2021 m could be a potential reservoir rock in the well Kachi-1. The sandstone from 1587 m to 1592 could be also a potential reservoir rock even if further study is necessary for the cap rock. Content of organic matter is very low and the type is compared to III in the section penetrated by the above two wells. Thermal maturity might reach top of oil window at depth about 1200 m by Tmax and about 1300 m by biomarker analysis in the Kachi-1 well. On the basis of illite crystallinity, the top of oil generation zone could be located at the depth 1600 m. The thermal maturity could not be determined in the IIH-1Xa well, because of the extremely low organic matter content or bad state of samples. Hydrocarbon genetic potential
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Park, K S;
Park, K P;
Sunwoo, D;
Yoo, D G;
Cheong, T J;
Oh, J H;
Bong, P Y;
Son, J D;
Lee, H Y;
Ryu, B J;
Son, B K;
Hwang, I G;
Kwon, Y I;
Lee, Y J;
Kim, H J
[1]
- Korea Institute of Geology Mining and Materials, Taejon (Korea, Republic of)
Citation Formats
Park, K S, Park, K P, Sunwoo, D, Yoo, D G, Cheong, T J, Oh, J H, Bong, P Y, Son, J D, Lee, H Y, Ryu, B J, Son, B K, Hwang, I G, Kwon, Y I, Lee, Y J, and Kim, H J.
Petroleum resources assessment on the western part of the Kunsan Basin.
Korea, Republic of: N. p.,
1997.
Web.
Park, K S, Park, K P, Sunwoo, D, Yoo, D G, Cheong, T J, Oh, J H, Bong, P Y, Son, J D, Lee, H Y, Ryu, B J, Son, B K, Hwang, I G, Kwon, Y I, Lee, Y J, & Kim, H J.
Petroleum resources assessment on the western part of the Kunsan Basin.
Korea, Republic of.
Park, K S, Park, K P, Sunwoo, D, Yoo, D G, Cheong, T J, Oh, J H, Bong, P Y, Son, J D, Lee, H Y, Ryu, B J, Son, B K, Hwang, I G, Kwon, Y I, Lee, Y J, and Kim, H J.
1997.
"Petroleum resources assessment on the western part of the Kunsan Basin."
Korea, Republic of.
@misc{etde_650645,
title = {Petroleum resources assessment on the western part of the Kunsan Basin}
author = {Park, K S, Park, K P, Sunwoo, D, Yoo, D G, Cheong, T J, Oh, J H, Bong, P Y, Son, J D, Lee, H Y, Ryu, B J, Son, B K, Hwang, I G, Kwon, Y I, Lee, Y J, and Kim, H J}
abstractNote = {Palynomorphs including spores, pollen and organic-walled microfossils and calcareous microfossils such as ostracods, charophytes and gastropods were studied for the biostratigraphic work of Kachi-1 and IIH-1Xa wells. All the microfossils yielded from two wells indicate nonmarine environment ranging from shallow lacustrine to fluvial one. The paleoclimates have been fluctuated between subtropical and cool temperate with arid/humid alternating conditions. The fluvial sandstone of the interval between 2017 m and 2021 m could be a potential reservoir rock in the well Kachi-1. The sandstone from 1587 m to 1592 could be also a potential reservoir rock even if further study is necessary for the cap rock. Content of organic matter is very low and the type is compared to III in the section penetrated by the above two wells. Thermal maturity might reach top of oil window at depth about 1200 m by Tmax and about 1300 m by biomarker analysis in the Kachi-1 well. On the basis of illite crystallinity, the top of oil generation zone could be located at the depth 1600 m. The thermal maturity could not be determined in the IIH-1Xa well, because of the extremely low organic matter content or bad state of samples. Hydrocarbon genetic potential is almost null in the both well except for a few sample in the thermally immature interval. Analysis of approximately 3,300 Line-km of multichannel seismic data integrated with 3 well data provides an insight of structural evolution of the western part of the Yellow Sea Basin. Tectonics of the rifting phase have been established on the basis of structural and stratigraphic analyses of depositional sequences and their seismic expressions. Based on available well data, the rifting probably began in the Cretaceous time had continued until Paleocene. It is considered that compressional force immediately after rifting event deformed sedimentary sections. During the period of Paleocene to middle Miocene, the sediments were deposited in stable environment without particular tectonic event. (author). 33 refs., 16 tabs., 48 figs.}
place = {Korea, Republic of}
year = {1997}
month = {Dec}
}
title = {Petroleum resources assessment on the western part of the Kunsan Basin}
author = {Park, K S, Park, K P, Sunwoo, D, Yoo, D G, Cheong, T J, Oh, J H, Bong, P Y, Son, J D, Lee, H Y, Ryu, B J, Son, B K, Hwang, I G, Kwon, Y I, Lee, Y J, and Kim, H J}
abstractNote = {Palynomorphs including spores, pollen and organic-walled microfossils and calcareous microfossils such as ostracods, charophytes and gastropods were studied for the biostratigraphic work of Kachi-1 and IIH-1Xa wells. All the microfossils yielded from two wells indicate nonmarine environment ranging from shallow lacustrine to fluvial one. The paleoclimates have been fluctuated between subtropical and cool temperate with arid/humid alternating conditions. The fluvial sandstone of the interval between 2017 m and 2021 m could be a potential reservoir rock in the well Kachi-1. The sandstone from 1587 m to 1592 could be also a potential reservoir rock even if further study is necessary for the cap rock. Content of organic matter is very low and the type is compared to III in the section penetrated by the above two wells. Thermal maturity might reach top of oil window at depth about 1200 m by Tmax and about 1300 m by biomarker analysis in the Kachi-1 well. On the basis of illite crystallinity, the top of oil generation zone could be located at the depth 1600 m. The thermal maturity could not be determined in the IIH-1Xa well, because of the extremely low organic matter content or bad state of samples. Hydrocarbon genetic potential is almost null in the both well except for a few sample in the thermally immature interval. Analysis of approximately 3,300 Line-km of multichannel seismic data integrated with 3 well data provides an insight of structural evolution of the western part of the Yellow Sea Basin. Tectonics of the rifting phase have been established on the basis of structural and stratigraphic analyses of depositional sequences and their seismic expressions. Based on available well data, the rifting probably began in the Cretaceous time had continued until Paleocene. It is considered that compressional force immediately after rifting event deformed sedimentary sections. During the period of Paleocene to middle Miocene, the sediments were deposited in stable environment without particular tectonic event. (author). 33 refs., 16 tabs., 48 figs.}
place = {Korea, Republic of}
year = {1997}
month = {Dec}
}