Evaluation study of petroleum source rocks using infrared spectroscopy

石油烃源岩红外光谱评价研究

• 批准号: 06453002
• 负责人: AKIYAMA Masahiko
• 金额: $ 4.29万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06453002/
• 关键词: infrared spectroscopy; petroleum source rock; kerogen; Teradomari Formation; aliphatic chain; Bouma sequence; MITI-Takadaheiya; IR maturation path diagram; タ-ビダイト泥岩; 蛍光マセラル分析; 熟成度

1. Evolution paths of the three kerogen types heated for simulated maturation experiments were clearly shown on a diagram of aliphatic CH_2 (2930cm^<-1>) /aromatic C=C (1605cm^<-1>) vs C=O (1710cm^<-1>) /C=C with iso-vitrinite reflectance lines. This diagram is defined as an "IR maturation path diagram " to evaluate type and maturation degree of kerogens simultaneously.2. The Miocene Teradomari Formation is a major source rock in the Niigata oil field. Mudstone samples, collected from the type locality of the Teradomari Formation, were classified as turbidite mudstone (Et) or (hemi) pelagic mudstone (Ep) according to their Bouma sequence division. ET and Ep kerogens occupy Type-II and Type I-II paths, respectively on the IR maturation path diagram. Relative quantities and chain lengths of aliphatic moieties estimated by FTIR indicate that Ep kerogen has a higher oil generation potential than Et kerogen.3. FTIR analyzes of the kerogens separated from the MITI-Takadaheiya core samples show the discordant result from the simulated experiment on the IR maturation path diagram. Further research works should be done on geological samples.

1. 用等镜质组反射率曲线绘制脂肪族CH_2 (2930cm^<-1>) /芳香族C=C （1605cm^<-1>）与C=O (1710cm^<-1>) /C=C的对比图，清晰地显示了模拟成熟实验中三种干酪根类型的演化路径。该图定义为“红外成熟路径图”，可同时评价干酪根的类型和成熟程度。中新世Teradomari组是新泻油田的主要烃源岩。在Teradomari组泥岩类型位置采集的泥岩样品，根据其波马层序划分，将泥岩分为浊积泥岩（Et）和（半）中海泥岩（Ep）。在IR成熟路径图上，ET干酪根和Ep干酪根分别占据ii型和I-II型路径。FTIR测定的脂肪族相对数量和链长表明，Ep干酪根比Et干酪根具有更高的生油潜力。对高田海岩心分离的干酪根进行FTIR分析，发现模拟实验结果与红外成熟路径图不一致。对地质样品的进一步研究工作有待开展。

项目成果

渡辺陽巳・秋山雅彦: "寺泊層ケロジェンの有機地球化学的特性" Reseaches in Organic Geochemistry. 11(印刷中). (1996)

Hiromi Watanabe 和 Masahiko Akiyama：“寺泊地层干酪根的有机地球化学特征”有机地球化学研究 11（出版中）。

Watanabe, H.and Akiyama, M.: "Source rock evaluation by fluorescence maceral analysis in the Miocene Teradomari Formation in the NIigata oil field, central Japan." Researches in Organic Geochemistry. 11 (in press). (1996)

Watanabe, H. 和 Akiyama, M.：“通过荧光显微组分分析对日本中部新泻油田中新统 Teradomari 组的烃源岩进行评价。”

渡辺陽巳・秋山雅彦: "寺泊層ケロジェンの有機地球化学的特性" Researches in Organic Geochemistry. 11(印刷中). (1996)

Hiromi Watanabe 和 Masahiko Akiyama：“寺泊地层干酪根的有机地球化学特征”有机地球化学研究 11（出版中）。

Akiyama, A., Takemura, C.and Sawada, K.: "IR maturation path diagram of kerogen macerals by heating experiments." Selected Papers 17th International Meeting on Organic Geochemistry. 783-785 (1995)

Akiyama, A.、Takemura, C. 和 Sawada, K.：“通过加热实验获得干酪根显微组分的红外成熟路径图。”

Akiyama M.i Takemura C. and Sawada,K.: "IR maturation path diagram of kerogen macerals by neating experiments" 17th Intcrnational Meeting on Organic Geochemistry. 783-785 (1995)

Akiyama M.i Takemura C. 和 Sawada,K.：“通过整理实验得到干酪根显微组分的红外成熟路径图”第 17 届国际有机地球化学会议。