柴达木盆地天然气的碳同位素地球化学特征及成因分析

赵东升

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柴达木盆地天然气的碳同位素地球化学特征及成因分析

赵东升

文章导航 > 沉积学报 > 2006 > 24(1): 135-140

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

引用本文:

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

Citation:

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

引用本文:

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

Citation:

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

柴达木盆地天然气的碳同位素地球化学特征及成因分析

赵东升

西北大学地质系西安 710069

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通讯作者:
赵东升

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Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

ZHAO Dongsheng

Geology Department of Northwest University, Xi’an 710069; 2.Qinghai Oilfield Company, CNPC,Dunhuang, Gansu 736202

More Information

Corresponding author: ZHAO Dongsheng

摘要

摘要: 依据天然气碳同位素中δ13C1、δ13C2、δ13C3的组成与划分标准，将柴达木盆地天然气划分为煤型气、裂解气、油型气与生物气四种类型，通过对天然气同位素中的δ13C1、δ13C2-δ13C1、δ13C3-δ13C2值的差异分析以及与对应的烃源岩干酪根碳同位素进行对比分析，探讨了柴达木盆地不同地区天然气的成因以及影响因素，这对于探索柴达木盆地的成气规律以及在不同地区天然气勘探的目标选择都有着现实意义。
- 天然气 /
- 碳同位素 /
- 成因 /
- 柴达木盆地
Abstract: δ13C1，δ13C2,δ13C3，δ13C4 of〖KG*2〗natural gas isotopic composition are various in different parts of Qaidam Basin. The average〖KG*2〗of them are －23.1‰,－24.1‰,－22.7‰ and〖KG*2〗－23.6‰ in Sanhu area around; －29.8‰,－24.7‰,－23.1‰ and〖KG*2〗－22.9‰ in Chaibeiyuan area;〖KG*2〗－39.2‰,－26.8‰,－23‰ and〖KG*2〗－23‰ in Chaixi area;〖KG*2〗－67.8‰,－39.2‰，－32.3‰ and lack of〖KG*2〗δ13C4 in Sanhu area. δ13C4>δ13C3〖KG*2〗>δ13C2〖KG*2〗>δ13C1 exist between〖KG*2〗component of most natural〖KG*2〗gas isotope, and reversion〖KG*2〗of minor heavy carbon isotopic composition exist. Reginally,δ13C1，δ13C2,δ13C3，δ13C4 of〖KG*2〗natural gas isotopic composition〖KG*2〗decrease gradually from〖KG*2〗Sanhu area around,〖KG*2〗Chaibeiyuan area and Chaixi area to Sanhu area.〖KG*2〗δ13C2-δ13C1〖KG*2〗andδ13C3-δ13C2 of〖KG*2〗natural gas isotopic composition increase gradually from〖KG*2〗Sanhu area around,〖KG*2〗Chaibeiyuan area and Chaixi area to Sanhu area, the average〖KG*2〗of them are －0.8‰ and〖KG*2〗－0.9‰ in〖KG*2〗Sanhu area around, 5.1‰ and 1.3‰ in Chaibeiyuan area，14.5‰ and 2.3‰ in Chaixi area， 27.9‰ and 12.5‰ in Sanhu area.
δ13C4>δ13C3〖KG*2〗>δ13C2〖KG*2〗>δ13C1 exist between〖KG*2〗component of most natural〖KG*2〗gas isotope because natural〖KG*2〗gas of organic geneses are derived from the similar process of thermodynamic action, and reversion〖KG*2〗of minor heavy carbon isotopic composition exist because of the mixed action of natural gas from the different derivation or the difference of duration, temperatures and pressures〖KG*2〗in developing hydrocarbon process from the same source rock. The difference between δ13C2-δ13C1〖KG*2〗and δ13C3-δ13C2〖KG*2〗in different area depend on duration, temperatures and pressures〖KG*2〗of source rock evolution, the higher temperatures and pressures〖KG*2〗and the longer duration of source rock evolution, the more uniform〖KG*2〗δ13C distribution between natural〖KG*2〗gas component. In the meantime, bacteria and types of kerogen have an effect on δ13C2-δ13C1〖KG*2〗andδ13C3-δ13C2 to some extent. The study on carbon isotope geochemical characteristic. can not only divide types of natural〖KG*2〗gas and discuss〖KG*2〗their geneses in theory, but also guide the exploration of natural〖KG*2〗gas.
- natural gas /
- carbon isotope /
- genesis /
- Qaidam Basin

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[1]	倪新锋. 塔里木盆地英买力—哈拉哈塘地区奥陶系碳酸盐岩岩溶型储层特征及成因 . 沉积学报, 2011, 29(3): 465-474.
[2]	赵必强, 肖贤明, 胡忠良, 黄保家. 莺歌海盆地东方1—1气田天然气来源与运聚模式 . 沉积学报, 2005, 23(1): 156-161.
[3]	罗小平, 沈忠民, 彭渤莹, 王又杰, 林壬子. 东濮凹陷白庙地区天然气及凝析油地球化学特征及成因 . 沉积学报, 2004, 22(S1): 50-55.
[4]	冯子辉, 冯志强, 刘伟, 王雪, 关秋华. 松辽盆地北部深层凝析油及油型气的成因研究 . 沉积学报, 2004, 22(S1): 45-49.
[5]	段毅, 彭德华, 张晓宝, 周世新, 王智平, 张辉. 柴达木盆地原油碳同位素组成的主控因素与成因类型 . 沉积学报, 2003, 21(2): 355-359.
[6]	付锁堂, 冯乔, 张文正. 鄂尔多斯盆地苏里格庙与靖边天然气单体碳同位素特征及其成因 . 沉积学报, 2003, 21(3): 528-532,538.
[7]	王国安, 申建中, 何宏, 季美英. 塔北、塔中天然气中烷烃同系物碳同位素组成系列倒转现象的解释 . 沉积学报, 2002, 20(3): 482-487.
[8]	张晓宝, 徐永昌, 刘文汇, 沈平, 吉利明, 马立元. 吐哈盆地水溶气组分与同位素特征形成机理及意义探讨 . 沉积学报, 2002, 20(4): 705-709.
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柴达木盆地天然气的碳同位素地球化学特征及成因分析

赵东升

西北大学地质系西安 710069

通讯作者: 赵东升

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2006-02-10

关键词:

天然气 /

碳同位素 /

成因 /

柴达木盆地

摘要: 依据天然气碳同位素中δ13C1、δ13C2、δ13C3的组成与划分标准，将柴达木盆地天然气划分为煤型气、裂解气、油型气与生物气四种类型，通过对天然气同位素中的δ13C1、δ13C2-δ13C1、δ13C3-δ13C2值的差异分析以及与对应的烃源岩干酪根碳同位素进行对比分析，探讨了柴达木盆地不同地区天然气的成因以及影响因素，这对于探索柴达木盆地的成气规律以及在不同地区天然气勘探的目标选择都有着现实意义。

English Abstract

Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

ZHAO Dongsheng

Geology Department of Northwest University, Xi’an 710069; 2.Qinghai Oilfield Company, CNPC,Dunhuang, Gansu 736202

Corresponding author: ZHAO Dongsheng

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2006-02-10

Keywords:

Abstract: δ13C1，δ13C2,δ13C3，δ13C4 of〖KG*2〗natural gas isotopic composition are various in different parts of Qaidam Basin. The average〖KG*2〗of them are －23.1‰,－24.1‰,－22.7‰ and〖KG*2〗－23.6‰ in Sanhu area around; －29.8‰,－24.7‰,－23.1‰ and〖KG*2〗－22.9‰ in Chaibeiyuan area;〖KG*2〗－39.2‰,－26.8‰,－23‰ and〖KG*2〗－23‰ in Chaixi area;〖KG*2〗－67.8‰,－39.2‰，－32.3‰ and lack of〖KG*2〗δ13C4 in Sanhu area. δ13C4>δ13C3〖KG*2〗>δ13C2〖KG*2〗>δ13C1 exist between〖KG*2〗component of most natural〖KG*2〗gas isotope, and reversion〖KG*2〗of minor heavy carbon isotopic composition exist. Reginally,δ13C1，δ13C2,δ13C3，δ13C4 of〖KG*2〗natural gas isotopic composition〖KG*2〗decrease gradually from〖KG*2〗Sanhu area around,〖KG*2〗Chaibeiyuan area and Chaixi area to Sanhu area.〖KG*2〗δ13C2-δ13C1〖KG*2〗andδ13C3-δ13C2 of〖KG*2〗natural gas isotopic composition increase gradually from〖KG*2〗Sanhu area around,〖KG*2〗Chaibeiyuan area and Chaixi area to Sanhu area, the average〖KG*2〗of them are －0.8‰ and〖KG*2〗－0.9‰ in〖KG*2〗Sanhu area around, 5.1‰ and 1.3‰ in Chaibeiyuan area，14.5‰ and 2.3‰ in Chaixi area， 27.9‰ and 12.5‰ in Sanhu area.
δ13C4>δ13C3〖KG*2〗>δ13C2〖KG*2〗>δ13C1 exist between〖KG*2〗component of most natural〖KG*2〗gas isotope because natural〖KG*2〗gas of organic geneses are derived from the similar process of thermodynamic action, and reversion〖KG*2〗of minor heavy carbon isotopic composition exist because of the mixed action of natural gas from the different derivation or the difference of duration, temperatures and pressures〖KG*2〗in developing hydrocarbon process from the same source rock. The difference between δ13C2-δ13C1〖KG*2〗and δ13C3-δ13C2〖KG*2〗in different area depend on duration, temperatures and pressures〖KG*2〗of source rock evolution, the higher temperatures and pressures〖KG*2〗and the longer duration of source rock evolution, the more uniform〖KG*2〗δ13C distribution between natural〖KG*2〗gas component. In the meantime, bacteria and types of kerogen have an effect on δ13C2-δ13C1〖KG*2〗andδ13C3-δ13C2 to some extent. The study on carbon isotope geochemical characteristic. can not only divide types of natural〖KG*2〗gas and discuss〖KG*2〗their geneses in theory, but also guide the exploration of natural〖KG*2〗gas.

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

引用本文:

赵东升. 柴达木盆地天然气的碳同位素地球化学特征及成因分析[J]. 沉积学报, 2006, 24(1): 135-140.

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

Citation:

ZHAO Dongsheng. Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin[J]. Acta Sedimentologica Sinica, 2006, 24(1): 135-140.

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柴达木盆地天然气的碳同位素地球化学特征及成因分析

通讯作者:
赵东升

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Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

Corresponding author: ZHAO Dongsheng

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目录

柴达木盆地天然气的碳同位素地球化学特征及成因分析

西北大学地质系西安 710069

通讯作者: 赵东升

English Abstract

Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

Geology Department of Northwest University, Xi’an 710069; 2.Qinghai Oilfield Company, CNPC,Dunhuang, Gansu 736202

Corresponding author: ZHAO Dongsheng

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柴达木盆地天然气的碳同位素地球化学特征及成因分析

通讯作者: 赵东升

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Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

Corresponding author: ZHAO Dongsheng

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出版历程

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柴达木盆地天然气的碳同位素地球化学特征及成因分析

西北大学地质系 西安 710069

通讯作者: 赵东升

English Abstract

Characteristics of Carbon Isotope and Origin of Natural Gas in Qaidam Basin

Geology Department of Northwest University, Xi’an 710069; 2.Qinghai Oilfield Company, CNPC,Dunhuang, Gansu 736202

Corresponding author: ZHAO Dongsheng

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通讯作者:
赵东升

西北大学地质系西安 710069