四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

韩耀文; 王廷栋; 王海清; 熊应明; 唐先益

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四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益

文章导航 > 沉积学报 > 1990 > 8(4): 94-103

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

引用本文:

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

Han Yaowen, Wang Tingdong, Wang Haiqing, Xiong Yingming, Tang Xianyi. GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE[J]. Acta Sedimentologica Sinica, 1990, 8(4): 94-103.

Citation:

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

引用本文:

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

Citation:

四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

1.
西南石油学院;
2.
四川石油管理局川中矿区

详细信息

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

计量

文章访问数: 843
HTML全文浏览量: 15
PDF下载量: 359
被引次数: 0

GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

1.
Southwestern Petroleum Institute;
2.
Central Sichuan Oil Field

摘要

摘要: 本文在综合论述大安寨组凝析气藏地质特征的基础上,讨论了储层高度致密化的原因,并根据凝析油轻烃C₄—C₇的族组成、庚烷值与异庚烷值、轻烃指纹化合物对比,结合天然气碳同位素资料,分析了本组气藏的气源及其受外源影响的可能性。认为,油气不仅来自本组的源岩,而且有其深部香溪群油气的明显混入。此外,本文还初步分析了某些气井在开采过程中,凝析油轻烃含量与组成的变化。
- 淡水湖滩相 /
- 介屑(壳)灰岩 /
- 烃源岩 /
- 轻烃指纹化合物
Abstract: Taking the Daanzhai formation of the condensate gas reservoir in Bajiaochang gas field which in the central Sichuan Basin as an example, this paper initiates with the description of its geological characteristics summarised below: 1.The producing formation is a typical inland freshwater lacustrine sediment which consists of lacustrine carbonates and interbedded with various thicknesses of shale layers. Coquina is a main reservoir rock. The black shale is a main source rock of hydrocarbons. 2. The reservoir rock is overlow permeable and unconvertional tight rock with the inhomogeneity. Through test to the core samples, it is proved that the porosities are mainly within the range of 1.0-1.5%, and the permeabilities are less than 0.5md (0.49 × 10^-4) μm²) 3. The main types of the organic matter (kerogen) in the source rock are sapropelic and mixed ones. The evolution of the organic materials is in the mature-early supermature stages. The reflectance of vitrinite (Ro) is about 0.8-1.1. 4. The gas reservoir of Daanzhai formation consists of several gas-producing layers and different fracture systems. The well interference exists distinctly in the same systems, but independence among different ones. The distribution of oil and gas in the anticline is controlled by both the diagenesis of reservoir and the structure. 5.The fluid pressure of the producing layer exceeds the hydrostatic pressure. The pressure coefficient is about 1.56-1.70, belonging to high abnormal pressure. The formation temperature is about 70-75℃. Then this paper deals with the gas sources and the possibility of being influenced by other sources, according to the components of light hydrocarbons (,C⁴- C⁷) series in the condensate, the paraffin index, the correlation of fingerprint compounds of light hydrocarbons and the carbon isotopic characteristics. Differing from the conventional point of view, a conclusion is drawn that the oil and gas are not only from the sources in Daanzhai formation, but also from that of the deeper Xiangxi group. This idea may have some significance in studying the distribution of the inhomogeneity of oil and gas, and forming mechanism of abnormal pressure, and so on. Moreover, it discusses the changes of light hydrocarbons in the condensate in regard to their content and composition.

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参考文献(1)

[1]

(1) 强子同、杨宝善等，1981，地球化学，第3期，232-241页。

(2) 高宏、唐先益，1987，天然气工业，第7卷，第1期，91 J96页。

(3) Frdman J.G. et al. 1974, AAPG Bull., Vo1.58, p.2326-2337.

(4) James A.T.1983. AAPG Bu11.Vo1.67.No.7. p.1176-1191.

(5) Leythaeuser D.et al.1979. Organic Geochemistry.Vol.l. p.191-224.

(6) Snowdon L.R.and Powell T.G.1982, AAPG Bu11.Vo1.66. p.775-788.

(7) T hompson K.F.M.1979. Geochim.Cosmochim.Acta.Vo1.43. p.657-672.

(8) Thompson K.F.M.1983. Geochim.Cosmochim.Acta.Vo1.47. p.307-316.

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四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

1. 西南石油学院;

2. 四川石油管理局川中矿区

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

收稿日期: 1988-07-25
刊出日期: 1990-12-10

关键词:

淡水湖滩相 /

介屑(壳)灰岩 /

烃源岩 /

轻烃指纹化合物

摘要: 本文在综合论述大安寨组凝析气藏地质特征的基础上,讨论了储层高度致密化的原因,并根据凝析油轻烃C₄—C₇的族组成、庚烷值与异庚烷值、轻烃指纹化合物对比,结合天然气碳同位素资料,分析了本组气藏的气源及其受外源影响的可能性。认为,油气不仅来自本组的源岩,而且有其深部香溪群油气的明显混入。此外,本文还初步分析了某些气井在开采过程中,凝析油轻烃含量与组成的变化。

English Abstract

GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

1. Southwestern Petroleum Institute;

2. Central Sichuan Oil Field

Received Date: 1988-07-25
Publish Date: 1990-12-10

Abstract: Taking the Daanzhai formation of the condensate gas reservoir in Bajiaochang gas field which in the central Sichuan Basin as an example, this paper initiates with the description of its geological characteristics summarised below: 1.The producing formation is a typical inland freshwater lacustrine sediment which consists of lacustrine carbonates and interbedded with various thicknesses of shale layers. Coquina is a main reservoir rock. The black shale is a main source rock of hydrocarbons. 2. The reservoir rock is overlow permeable and unconvertional tight rock with the inhomogeneity. Through test to the core samples, it is proved that the porosities are mainly within the range of 1.0-1.5%, and the permeabilities are less than 0.5md (0.49 × 10^-4) μm²) 3. The main types of the organic matter (kerogen) in the source rock are sapropelic and mixed ones. The evolution of the organic materials is in the mature-early supermature stages. The reflectance of vitrinite (Ro) is about 0.8-1.1. 4. The gas reservoir of Daanzhai formation consists of several gas-producing layers and different fracture systems. The well interference exists distinctly in the same systems, but independence among different ones. The distribution of oil and gas in the anticline is controlled by both the diagenesis of reservoir and the structure. 5.The fluid pressure of the producing layer exceeds the hydrostatic pressure. The pressure coefficient is about 1.56-1.70, belonging to high abnormal pressure. The formation temperature is about 70-75℃. Then this paper deals with the gas sources and the possibility of being influenced by other sources, according to the components of light hydrocarbons (,C⁴- C⁷) series in the condensate, the paraffin index, the correlation of fingerprint compounds of light hydrocarbons and the carbon isotopic characteristics. Differing from the conventional point of view, a conclusion is drawn that the oil and gas are not only from the sources in Daanzhai formation, but also from that of the deeper Xiangxi group. This idea may have some significance in studying the distribution of the inhomogeneity of oil and gas, and forming mechanism of abnormal pressure, and so on. Moreover, it discusses the changes of light hydrocarbons in the condensate in regard to their content and composition.

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

引用本文:

韩耀文, 王廷栋, 王海清, 熊应明, 唐先益. 四川八角场油气田大安寨组凝析气藏的地质-地球化学研究[J]. 沉积学报, 1990, 8(4): 94-103.

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四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

计量

GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

计量

目录

四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

1. 西南石油学院;

2. 四川石油管理局川中矿区

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

English Abstract

GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

1. Southwestern Petroleum Institute;

2. Central Sichuan Oil Field

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四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

作者简介: 韩耀文,男,58岁,教授,石油及天然气地质学.

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GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

计量

出版历程

目录

四川八角场油气田大安寨组凝析气藏的地质-地球化学研究

1. 西南石油学院; 2. 四川石油管理局川中矿区

作者简介: 韩耀文,男,58岁,教授,石油及天然气地质学.

English Abstract

GEOLOGICAL AND GEOCHEMICAL STUDY ON GAS-CONDENSATING RESERVOIR OF DAANZHAI FORMATION, BAJIAOCHANG SICHUAN PROVINCE

1. Southwestern Petroleum Institute; 2. Central Sichuan Oil Field

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

1. 西南石油学院;

2. 四川石油管理局川中矿区

作者简介:
韩耀文,男,58岁,教授,石油及天然气地质学.

1. Southwestern Petroleum Institute;

2. Central Sichuan Oil Field