Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology

LI Hui jun; WU Tai ran; HAO Yin quan; ZHANG Xiu zhu; MA Zong jin

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Article Navigation > Acta Sedimentologica Sinica > 2004 > 22(4): 737-742

LI Hui jun, WU Tai ran, HAO Yin quan, ZHANG Xiu zhu, MA Zong jin. Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology[J]. Acta Sedimentologica Sinica, 2004, 22(4): 737-742.

Citation:

LI Hui jun, WU Tai ran, HAO Yin quan, ZHANG Xiu zhu, MA Zong jin. Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology[J]. Acta Sedimentologica Sinica, 2004, 22(4): 737-742.

Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology

1.
School of Earth and Space Sciences, Peking University, Beijing 100083;
2.
Dagang Oil Field Corporation, CNPC, Tianjin 300280;
3.
Institute of Geology, China Seismological Bureau, Beijing 100029

Received Date: 2003-12-01
Rev Recd Date: 2004-05-13
Publish Date: 2004-12-10

Abstract

Overpressure developed in Banqiao Sag, Eastern China, and obvious overpressure retardation of organic matter maturation was found in Well BS35. Such an organic matter maturity anomaly is distinctly different from those caused by variation in activation energies, conductivity contrasts, and hydrologic effects. Overpressure retardation has been proven to be conditional through integrated organic geochemical and geologic research, early developed overpressure, high original TOC contents of source rocks and the retention of the pore fluids (including products of organic matter maturation reactions) in the source rocks are three important factors affecting overpressure retardation of organic matter maturation, and overpressure retardation of organic matter maturation is quite important for clearly understanding petroleum exploration during deep burial in overpressured sedimentary basins.
- Banqiao Sag,
- overpressure,
- retardation,
- R _o value

References

[1]	Monthioux M, Landais P, Durand B. Comparison between extracts from natural and artificial maturation series of Mahakam delta coals. Organic Geochemistry, 1986, 10: 299～311
[2]	Braun R L, Burnham A K. Mathematical model of oil generation, degradation and expulsion. Energy Fuels, 1990, 4: 132～146
[3]	Cecil B C, Stanton R W, Robbins E I. Geologic factors controlling coalification and hydrocarbon maturation, AAPG Bulletin, 1977, 61: 775
[4]	McTavish R A. Pressure retardation of vitrinite diagenesis, offshore northwest Europe. Nature, 1978, 271: 648～650
[5]	Price L C, Wenger L M. The influence of pressure on petroleum generation and maturation as suggested by aqueous pyrolysis. Organic Geochemistry, 1992, 19: 141～159
[6]	李会军,程文艳,张文才, 等.深层异常温压条件下碎屑岩成岩作用特征初探.石油勘探与开发,2001,28(6):28～31[ Li Huijun, Cheng Wenyan, Zhang Wencai,et al. An approach to the diagenesis of clastic rocks under abnormal high temperature and pressure. Petroleum Exploration and Development, 2001, 28(6): 28～31 ]
[7]	李洪香, 任继红,马建英, 周静.异常高孔隙流体压力与碎屑岩深部油气藏.石油勘探与开发,2001,28(6):5～8[ Li Hongxiang, Ren Jixiong, Ma Jianying, Zhou Jing. Abnormal high pore fluid pressure and deep oil and gas pool of clastic rocks. Petroleum Exploration and Development, 2001, 28(6): 5～8 ]
[8]	游俊,郑浚茂,周建生.深部地层异常压力与异常孔隙度及油气藏的关系.中国海上油气(地质),1997,11(4):249～253[ You Jun, Zheng Junmao, Zhou Jiansheng. The relationship between abnormal pressure and abnormal porosity and hydrocarbon reservoir in the deep strata. China Offshore Oil and Gas (Geology), 1997, 11(4): 249～253 ]
[9]	田克勤,于志海,冯明,等.渤海湾盆地下第三系深层油气地质与勘探.北京:石油工业出版社,2000[ Tian Keqin, Yu Zhihai, Feng Ming, et al. Oil-gas Geology and Exploration in Lower Tertiary Deep Formation of Bohaiwan Basin. Beijing: Petroleum Industry Press, 2000 ]
[10]	Price L C, Barker C E. Suppression of vitrinite reflectance in amorphous rich kerogen - a major unrecognized problem: Journal of Petroleum Geology, 1985, 8: 59～84
[11]	Price L C, Clayton J L. Reasons for and significance of deep, high-rank hydrocarbon generation in the south Texas Gulf Coast. Gulf Coast SEPM Foundation Annual Research Conference Proceeding, October 1, 1990. 105～137
[12]	Hao Fang and Chen Jianyu.The cause and mechanism of vitrinite reflectance anomalies. Journal of Petroleum Geology, 1992, 15: 419～134.
[13]	Person M, Garven G. Hydrologic constraints on petroleum generation within continental rift basins: theory, and application to the Rhine graben. AAPG Bulletin, 1992, 76: 468～488
[14]	Law B E, Nuccio V F, Barker C E. Kinky vitrinite reflectance well profiles: evidence of paleopore pressure in low-permeability, gas-bearing sequences in Rocky Mountain foreland basins. AAPG Bulletin, 1989, 73: 999～1010
[15]	Decker A D, Horner D M. Source rock evaluation: a method of predicting dominant reservoirs: SPE/DOE Joint Symposium on low-permeability Reservoirs Proceedings, 1987. 297～306.
[16]	Wang T, Zhong N, Hou D, Huang G, Yu Z, et al. On bacterial role in hydrocarbon generation mechanism, Banqiao Sag, Science in China (Series B), 1995, 38( 9): 1123～1134
[17]	陈恭洋,王湘平,王铁冠,等.板桥凹陷低熟烃源岩的压实特征与油气初次运移.江汉石油学院学报,1999,21(1):5～8 [ Chen Gongyang, Wang Xiangping,Wang Tieguan, et al. Compaction and Primary Hydrocarbon Migration of Immature Source Rocks in Banqiao Depression. Journal of Jianghan Petroleum Institute, 1999, 21(1): 5～8]
[18]	卢双舫,刘晓艳,付晓泰,等.未熟-低熟油生成机理的化学动力学研究及其初步应用.沉积学报,2001,19(1):130～135[ Lu Shuangfang, Liu Xiaoyan, Fu Xiaotai, et al. Chemical kinetics study on the generation mechanism of immature to low mature oil and its initial application. Acta Sedimentologica Sinica, 2001, 19(1): 130～135 ]
[19]	Hunt J M. Generation and migration of petroleum from abnormally pressured fluid compartments. AAPG Bulletin, 1990, 74: 1～12
[20]	Hao Fang, Overpressure retardation of organic-matter maturation and petroleum generation: a case study from the Yinggehai and Qiongdongnan Basins, South China Sea. AAPG Bulletin, 1995, 79: 551～562
[21]	游俊,郑浚茂.黄骅坳陷中北区深部储层物性影响因素分析.现代地质,1999,13(3):350～354 [You Jun & Zheng Junmao. Factors of affecting the reservoir physical properties of deep strata in the Huanghua Depression. Geoscience, 1999,13(3): 350～354 ]
[22]	陈纯芳,赵澄林,李会军.板桥和歧北凹陷沙河街组深层碎屑岩储层物性特征及其影响因素.石油大学学报 (自然科学版),2002,26(1):4～7 [ Chen Chunfang, Zhao Chenglin, Li Huijun. Physical properties of reservoir and influencing factors of deep burial clastic rocks in Banqiao-Qikou sag. Journal of Petroleum University, 2002, 26(1): 4～7 ]

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology

1. School of Earth and Space Sciences, Peking University, Beijing 100083;

2. Dagang Oil Field Corporation, CNPC, Tianjin 300280;

3. Institute of Geology, China Seismological Bureau, Beijing 100029

Received Date: 2003-12-01

Rev Recd Date: 2004-05-13

Publish Date: 2004-12-10

Key words:

Abstract: Overpressure developed in Banqiao Sag, Eastern China, and obvious overpressure retardation of organic matter maturation was found in Well BS35. Such an organic matter maturity anomaly is distinctly different from those caused by variation in activation energies, conductivity contrasts, and hydrologic effects. Overpressure retardation has been proven to be conditional through integrated organic geochemical and geologic research, early developed overpressure, high original TOC contents of source rocks and the retention of the pore fluids (including products of organic matter maturation reactions) in the source rocks are three important factors affecting overpressure retardation of organic matter maturation, and overpressure retardation of organic matter maturation is quite important for clearly understanding petroleum exploration during deep burial in overpressured sedimentary basins.

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Reference (22)

[1]	Monthioux M, Landais P, Durand B. Comparison between extracts from natural and artificial maturation series of Mahakam delta coals. Organic Geochemistry, 1986, 10: 299～311
[2]	Braun R L, Burnham A K. Mathematical model of oil generation, degradation and expulsion. Energy Fuels, 1990, 4: 132～146
[3]	Cecil B C, Stanton R W, Robbins E I. Geologic factors controlling coalification and hydrocarbon maturation, AAPG Bulletin, 1977, 61: 775
[4]	McTavish R A. Pressure retardation of vitrinite diagenesis, offshore northwest Europe. Nature, 1978, 271: 648～650
[5]	Price L C, Wenger L M. The influence of pressure on petroleum generation and maturation as suggested by aqueous pyrolysis. Organic Geochemistry, 1992, 19: 141～159
[6]	李会军,程文艳,张文才, 等.深层异常温压条件下碎屑岩成岩作用特征初探.石油勘探与开发,2001,28(6):28～31[ Li Huijun, Cheng Wenyan, Zhang Wencai,et al. An approach to the diagenesis of clastic rocks under abnormal high temperature and pressure. Petroleum Exploration and Development, 2001, 28(6): 28～31 ]
[7]	李洪香, 任继红,马建英, 周静.异常高孔隙流体压力与碎屑岩深部油气藏.石油勘探与开发,2001,28(6):5～8[ Li Hongxiang, Ren Jixiong, Ma Jianying, Zhou Jing. Abnormal high pore fluid pressure and deep oil and gas pool of clastic rocks. Petroleum Exploration and Development, 2001, 28(6): 5～8 ]
[8]	游俊,郑浚茂,周建生.深部地层异常压力与异常孔隙度及油气藏的关系.中国海上油气(地质),1997,11(4):249～253[ You Jun, Zheng Junmao, Zhou Jiansheng. The relationship between abnormal pressure and abnormal porosity and hydrocarbon reservoir in the deep strata. China Offshore Oil and Gas (Geology), 1997, 11(4): 249～253 ]
[9]	田克勤,于志海,冯明,等.渤海湾盆地下第三系深层油气地质与勘探.北京:石油工业出版社,2000[ Tian Keqin, Yu Zhihai, Feng Ming, et al. Oil-gas Geology and Exploration in Lower Tertiary Deep Formation of Bohaiwan Basin. Beijing: Petroleum Industry Press, 2000 ]
[10]	Price L C, Barker C E. Suppression of vitrinite reflectance in amorphous rich kerogen - a major unrecognized problem: Journal of Petroleum Geology, 1985, 8: 59～84
[11]	Price L C, Clayton J L. Reasons for and significance of deep, high-rank hydrocarbon generation in the south Texas Gulf Coast. Gulf Coast SEPM Foundation Annual Research Conference Proceeding, October 1, 1990. 105～137
[12]	Hao Fang and Chen Jianyu.The cause and mechanism of vitrinite reflectance anomalies. Journal of Petroleum Geology, 1992, 15: 419～134.
[13]	Person M, Garven G. Hydrologic constraints on petroleum generation within continental rift basins: theory, and application to the Rhine graben. AAPG Bulletin, 1992, 76: 468～488
[14]	Law B E, Nuccio V F, Barker C E. Kinky vitrinite reflectance well profiles: evidence of paleopore pressure in low-permeability, gas-bearing sequences in Rocky Mountain foreland basins. AAPG Bulletin, 1989, 73: 999～1010
[15]	Decker A D, Horner D M. Source rock evaluation: a method of predicting dominant reservoirs: SPE/DOE Joint Symposium on low-permeability Reservoirs Proceedings, 1987. 297～306.
[16]	Wang T, Zhong N, Hou D, Huang G, Yu Z, et al. On bacterial role in hydrocarbon generation mechanism, Banqiao Sag, Science in China (Series B), 1995, 38( 9): 1123～1134
[17]	陈恭洋,王湘平,王铁冠,等.板桥凹陷低熟烃源岩的压实特征与油气初次运移.江汉石油学院学报,1999,21(1):5～8 [ Chen Gongyang, Wang Xiangping,Wang Tieguan, et al. Compaction and Primary Hydrocarbon Migration of Immature Source Rocks in Banqiao Depression. Journal of Jianghan Petroleum Institute, 1999, 21(1): 5～8]
[18]	卢双舫,刘晓艳,付晓泰,等.未熟-低熟油生成机理的化学动力学研究及其初步应用.沉积学报,2001,19(1):130～135[ Lu Shuangfang, Liu Xiaoyan, Fu Xiaotai, et al. Chemical kinetics study on the generation mechanism of immature to low mature oil and its initial application. Acta Sedimentologica Sinica, 2001, 19(1): 130～135 ]
[19]	Hunt J M. Generation and migration of petroleum from abnormally pressured fluid compartments. AAPG Bulletin, 1990, 74: 1～12
[20]	Hao Fang, Overpressure retardation of organic-matter maturation and petroleum generation: a case study from the Yinggehai and Qiongdongnan Basins, South China Sea. AAPG Bulletin, 1995, 79: 551～562
[21]	游俊,郑浚茂.黄骅坳陷中北区深部储层物性影响因素分析.现代地质,1999,13(3):350～354 [You Jun & Zheng Junmao. Factors of affecting the reservoir physical properties of deep strata in the Huanghua Depression. Geoscience, 1999,13(3): 350～354 ]
[22]	陈纯芳,赵澄林,李会军.板桥和歧北凹陷沙河街组深层碎屑岩储层物性特征及其影响因素.石油大学学报 (自然科学版),2002,26(1):4～7 [ Chen Chunfang, Zhao Chenglin, Li Huijun. Physical properties of reservoir and influencing factors of deep burial clastic rocks in Banqiao-Qikou sag. Journal of Petroleum University, 2002, 26(1): 4～7 ]

Overpressure Retardation of Organic Matter and Its Significance for Petroleum Geology

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