晶包有机质&mdash;&mdash;认识碳酸盐岩生油机制的另一侧面

周中毅; 范善发; 谢觉新

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

周中毅, 范善发, 谢觉新

文章导航 > 沉积学报 > 1991 > 9(S1): 112-119

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

引用本文:

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

Citation:

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

引用本文:

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

Citation:

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

晶包有机质——认识碳酸盐岩生油机制的另一侧面

中国科学院地球化学研究所广州分部

详细信息

作者简介:
周中毅,男,56岁,研究员,有机地球化学.

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文章访问数: 432
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Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

Guangzhou Branch of Institute of Geochemistry, Chinese Academy of Sciences

摘要

摘要: 碳酸盐岩生油岩中常有较多的晶包有机质,它只有当碳酸盐岩生油岩分解或重结晶时才释放出来。某些碳酸盐岩生油岩晶包有机质的含量高于沥青A的含量。晶包有机质的成熟度往往低于沥青A的成熟度。塔里木盆地下古生界碳酸盐岩生油岩己过成熟了.却普遍存在晶洞油苗。晶包有机质在过成熟阶段从矿物中释放出来可能是碳酸盐岩成油的另一种方式。
- 碳酸盐岩 /
- 晶包 /
- 有机质 /
- 生油
Abstract: The content of organic matter enclosed in carbonate minerals is more abundant than that of extractable organic matter in many carbonate source rock. The maturity of enclosed organic matter is lower generally. Enclosed organic matter contains more abundant asphaltene and non- hydrocarbon compounds than extractable organic matter. Most of enclosed organic matter exist in the rings of calcite and dolomite. These rings is due to secondary growth in a certain stage of diagenesis. During the diagenesis, the soluble organic matter is produced step by step, in the same time, carbonate minerls secondarily grow or recrystallize and enclose soluble organic matter. The results of simulating experiments under high temperature and pressure show that this kind of organic mat'er nclosed in carbonate minerals can be released and converted into hydrocarbons. It is an effective oil-forming material. In addition to the difference of mineral catalytic power, the existence of enclosed organic matter is one of the reasons that the maturing speed of carbonate organic matter is lower than that of shale organic matter. In supermature stage of carbonate rocks(R01.3%), soluble organic matter, separating out from enclosed organic matter, makes bitumen A' s maturity lower. In the Lower Paleozoic carbonate rocks of TArim Basin, maturity of bitumen A is lower than solid asphalt' s. The 20S/(20R+20S) ratio of C₂₉ sterane in bitumen A is 0.43 and 22S/((22S+22R) ratio of C₃₁17α(H), 21β(H) hopane is 0.43. Both of them are lower than their equilibrium values. The solid asphalt reflectance in these carbonate rocks is equal to the vitrnite reflectance of 1.3%. As results of separating of enclosed organic matter, crystal hole oil seeps are widespread in the supermature carbonate rocks. In supermature stage, enclosed organic matter still can be coverted into liquid hydrocarbons. This is another oil- forming mechanism different from the oil- forming mechanism of kerogen. It may be of far reaching importance to recognize this kind of oil-froming mechanizm because huge thick-bedded carbonate rocks exist in the deep of the Tarim Basin.

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参考文献(1)

[1]

(1)傅家漠，1984，地球化学，1期，1-9页。

(2)周中毅，贾蓉芬，1974，地球化学，4期，278-297页.

(3)周中毅等，1983,地球化学，3期，276-284页.

(4) Gehman, H.M,1962, Geocttim. Cosmochim. Acta, Vo1.26, p.885-894.

(5)Hunt,J.M .,1967, Developments in Sedimentology. Chilingar, G.V. et al(ed.) Vol.9(B)，p.225-248

(6) Price.L,C.,1985, J.Petrol. Geol.. Vo1.8, p.59-84.

(7) Tissot.B.P.,and D. H. Weltee, 1978. Petroleum Formation and Occurrence. Springer-Verlag-Berlin,

p.429-470.

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

中国科学院地球化学研究所广州分部

作者简介:
周中毅,男,56岁,研究员,有机地球化学.

刊出日期: 1991-12-31

关键词:

碳酸盐岩 /

晶包 /

有机质 /

生油

摘要: 碳酸盐岩生油岩中常有较多的晶包有机质,它只有当碳酸盐岩生油岩分解或重结晶时才释放出来。某些碳酸盐岩生油岩晶包有机质的含量高于沥青A的含量。晶包有机质的成熟度往往低于沥青A的成熟度。塔里木盆地下古生界碳酸盐岩生油岩己过成熟了.却普遍存在晶洞油苗。晶包有机质在过成熟阶段从矿物中释放出来可能是碳酸盐岩成油的另一种方式。

English Abstract

Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

Guangzhou Branch of Institute of Geochemistry, Chinese Academy of Sciences

Publish Date: 1991-12-31

Abstract: The content of organic matter enclosed in carbonate minerals is more abundant than that of extractable organic matter in many carbonate source rock. The maturity of enclosed organic matter is lower generally. Enclosed organic matter contains more abundant asphaltene and non- hydrocarbon compounds than extractable organic matter. Most of enclosed organic matter exist in the rings of calcite and dolomite. These rings is due to secondary growth in a certain stage of diagenesis. During the diagenesis, the soluble organic matter is produced step by step, in the same time, carbonate minerls secondarily grow or recrystallize and enclose soluble organic matter. The results of simulating experiments under high temperature and pressure show that this kind of organic mat'er nclosed in carbonate minerals can be released and converted into hydrocarbons. It is an effective oil-forming material. In addition to the difference of mineral catalytic power, the existence of enclosed organic matter is one of the reasons that the maturing speed of carbonate organic matter is lower than that of shale organic matter. In supermature stage of carbonate rocks(R01.3%), soluble organic matter, separating out from enclosed organic matter, makes bitumen A' s maturity lower. In the Lower Paleozoic carbonate rocks of TArim Basin, maturity of bitumen A is lower than solid asphalt' s. The 20S/(20R+20S) ratio of C₂₉ sterane in bitumen A is 0.43 and 22S/((22S+22R) ratio of C₃₁17α(H), 21β(H) hopane is 0.43. Both of them are lower than their equilibrium values. The solid asphalt reflectance in these carbonate rocks is equal to the vitrnite reflectance of 1.3%. As results of separating of enclosed organic matter, crystal hole oil seeps are widespread in the supermature carbonate rocks. In supermature stage, enclosed organic matter still can be coverted into liquid hydrocarbons. This is another oil- forming mechanism different from the oil- forming mechanism of kerogen. It may be of far reaching importance to recognize this kind of oil-froming mechanizm because huge thick-bedded carbonate rocks exist in the deep of the Tarim Basin.

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

引用本文:

周中毅, 范善发, 谢觉新. 晶包有机质——认识碳酸盐岩生油机制的另一侧面[J]. 沉积学报, 1991, 9(S1): 112-119.

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

Citation:

Zhou Zhongyi, Fan Shanfa, Xie Juexin. Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks[J]. Acta Sedimentologica Sinica, 1991, 9(S1): 112-119.

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

作者简介:
周中毅,男,56岁,研究员,有机地球化学.

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Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

中国科学院地球化学研究所广州分部

作者简介:
周中毅,男,56岁,研究员,有机地球化学.

English Abstract

Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

Guangzhou Branch of Institute of Geochemistry, Chinese Academy of Sciences

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

作者简介: 周中毅,男,56岁,研究员,有机地球化学.

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Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

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晶包有机质——认识碳酸盐岩生油机制的另一侧面

中国科学院地球化学研究所广州分部

作者简介: 周中毅,男,56岁,研究员,有机地球化学.

English Abstract

Enclosed Organic Matter- Another Aspect of Recognizing Oil-forming Mechanism of Carbonate Rocks

Guangzhou Branch of Institute of Geochemistry, Chinese Academy of Sciences

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友情链接

期刊在线

联系我们

作者简介:
周中毅,男,56岁,研究员,有机地球化学.

作者简介:
周中毅,男,56岁,研究员,有机地球化学.