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Title Transcription
トウホク ニホン シンダイサンケイ デイシツガンチュウ デ ノ メチルジベンゾチオフェン イセイタイ ヘンカ
Title Alternative
Isomerization of methyldibenzothiophene in Neogene mudstones,northeast Japan
File
language
jpn
Author
Suzuki, Noriyuki
Shiomi, Tetsuya
Description
Isomerizations of methyldibenzothiophene from Neogene mudstones in northeast Japan were examined as a maturity parameter of organic matter during the diagenesis to catagenesis stage.The relationship between methyldibenzothiophene(MDBT)ratio(MDR:4-MDBT/1-MDBT)and vitrinite reflectance(Ro)from the Tojo TS-1 well,which underwent subsidence at low heating rate,can be described by the equation:MDR=15.1 Ro-5.35(n=11,r=0.85,Ro=0.4-0.7%).This equation is similar to that from Elmworth 6-28-68-13 W 6 M in Western Canada.New combination of the 1-MDBT,(2- + 3-)MDBT and 4-MDBT isoomers are used to be a new maturity parameter which is useful in the high maturity stage,up to 3% Ro.The ratio(2- + 3-)MDBT to(1- + 2- + 3- + 4-)MDBT increases from 0.2 to 0.6 over the range 0.4-3.0% Ro.The ratio(2- + 3-)MDBT to 4-MDBT was constant at about 0.5 in the range 0.4-1.5% Ro,and then increases from 0.5 to 4.5 in the range 1.5-2.9% Ro.Therefore,the(2- + 3-)/(1- + 2- + 3- + 4-)MDBT ratio is possibly on effective maturity indicator through the oil generation stage to higher maturity stages such as the dry gas zone.After the catagenesis stage,(2- + 3-)/(4-)MDBT ratio and high Ro gradients could assist interpretation of scattered(2- + 3-)/(1- + 2- + 3- + 4-)MDBT ratios with low gradient.
Journal Title
島根大学地球資源環境学研究報告
Volume
22
Start Page
135
End Page
140
ISSN
13439774
Published Date
2003-12-27
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
飯泉滋教授・山内靖喜教授 退官記念特集号
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