Characteristics of Seismic Facies of High-quality Source Rocks and Prediction of Their Distributions in the Zhu III Depression, Pearl River Mouth Basin

doi:10.11885/j.issn.1674-5086.2022.03.11.03

Abstract

Abstract: The source rocks developed in different sedimentary environments have different geochemical characteristics and contributions to petroleum accumulation. However, the spatial distribution of the source rocks of different facies is unknow, which restricts the following petroleum exploration. Based on the comprehensive analysis of rock debris, well logging, geochemistry and seismic data, the characteristics of seismic facies of high-quality sources within the Enping Formation and Wenchang Formation as well as their distribution modes are systematically investigated. The results demonstrate that: 1) the seismic facies of the source rocks of the Wenchang Formation deposited in the semi-deep and shallow lake in the Wenchang B Sag as well as the source rocks of Enping Formation deposited in the shallow lake are featured by strong amplitude-low frequency-parallel-moderately continuous reflection, weak amplitude-low frequency-parallel-weakly continuous reflection, and moderate and weak amplitude-low frequency-parallel-moderately continuous reflection (or chaotic reflection). 2) the highquality source rocks deposited in the semi-deep lake in the Wenchang B Sag are widely distributed in the sag center and steep slope zone, whereas the source rocks deposited in shallow lake are primarily distributed in the sag center and gentle slope; however, the source rocks deposited in the semi-deep lake are only located in the sag center in the Wenchang A Sag, and the source rocks deposited in the shallow lake are well developed around the sag. Thus, source rocks deposited in the semi-deep lake and shallow lake within the Wenchang Formation in the Wenchang B Sag and that deposited in the shallow lake in the Wenchang A Sag are the primary source rocks.

Key words: Zhu III Depression, Enping Formation, Wenchang Formation, high-quality source rocks, seismic facies

CLC Number:

TE122

YOU Junjun, LEI Mingzhu, LIU Yi, ZHAI Yanan, JIANG Li. Characteristics of Seismic Facies of High-quality Source Rocks and Prediction of Their Distributions in the Zhu III Depression, Pearl River Mouth Basin[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(4): 55-71.

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References

[1] 姜福杰,姜振学,庞雄奇,等. 中国中西部前陆盆地油气成藏条件及有利勘探方向[J]. 新疆石油地质, 2007, 28(1):1-6. doi:10.3969/j.issn.1001-3873.2007.01.001 JIANG Fujie, JIANG Zhenxue, PANG Xiongqi, et al. Hydrocarbon accumulation conditions and advantageous exploration targets in foreland basins of central-western China[J]. Xinjiang Petroleum Geology, 2007, 28(1):1-6. doi:10.3969/j.issn.1001-3873.2007.01.001
[2] 杨智,邹才能,吴松涛,等. 从源控论到源储共生系统——论源岩层系油气地质理论认识及实践[J]. 地质学报, 2021, 95(3):618-631. doi:10.3969/j.issn.0001-5717.2021.03.002 YANG Zhi, ZOU Caineng, WU Songtao, et al. From source control theory to source-reservoir symbiosis system:On the theoretical understanding and practice of source rock strata oil and gas geology in China[J]. Acta Geologica Sinica, 2021, 95(3):618-631. doi:10.3969/j.issn.0001-5717.2021.03.002
[3] 殷杰,王权. 利用测井和地震信息识别和预测优质烃源岩——以渤海湾盆地饶阳凹陷沙一段为例[J]. 天然气地球科学, 2017, 28(11):1761-1770. doi:10.11764/j.issn.1672-1926.2017.08.006 YIN Jie, WANG Quan. Using seismic and log information to identify and predict high-quality source rocks:A case study of the first Member of Shahejie Formation in Raoyang Sag, Bohai Bay Basin[J]. Natural Gas Geoscience, 2017, 28(11):1761-1770. doi:10.11764/j.issn.1672-1926.2017.08.006
[4] 王权,刘震,李晨曦,等. 河套盆地临河坳陷中—新生代烃源岩分布地震预测[J]. 现代地质, 2021, 35(3):850-860. doi:10.19657/j.geoscience.1000-8527.2021.057 WANG Quan, LIU Zhen, LI Chenxi, et al. Seismic prediction of Meso-Cenozoic source rock distribution in Linhe Depression, Hetao Basin[J]. Geoscience, 2021, 35(3):850-860. doi:10.19657/j.geoscience.1000-8527.2021.057
[5] 吴宇翔,舒誉,丁琳,等. 珠江口盆地番禺4 洼文昌组基于层序地层格架约束下的优质烃源岩预测[J]. 海洋地质前沿, 2021, 37(3):41-49. doi:10.16028/j.1009-2722.2020.158 WU Yuxiang, SHU Yu, DING Lin, et al. Prediction of high quality source rocks based on sequence stratigraphic framework of Wenchang Formation, Panyu 4 Depression, the Pearl River Mouth Basin[J]. Marine Geology Frontier, 2021, 37(3):41-49. doi:10.16028/j.1009-2722.2020.158
[6] 杨计海,杨希冰,游君君,等. 珠江口盆地珠三坳陷油气成藏规律及勘探方向[J]. 石油学报, 2019, 40(S1):11-25. doi:10.7623/syxb2019S1002 YANG Jihai, YANG Xibing, YOU Junjun, et al. Hydrocarbon accumulation law and exploration direction in Zhu III Depression, Pearl River Mouth Basin[J]. Acta Petrolei Sinica, 2019, 40(S1):11-25. doi:10.7623/syxb2019S1002
[7] 周刚,张迎朝,陆江,等. 珠江口盆地西部文昌B凹陷文昌组优质烃源岩再评价[J]. 中国海上油气, 2018, 30(3):28-37. doi:10.11935/j.issn.1673-1506.2018.03.004 ZHOU Gang, ZHANG Yingzhao, LU Jiang, et al. Reevaluation of high-quality source rock in the Wenchang Formation of the Wenchang B Sag, the western Pearl River Mouth Basin[J]. China Offshore Oil and Gas, 2018, 30(3):28-37. doi:10.11935/j.issn.1673-1506.2018.03.004
[8] 傅宁,李友川,孙建新,等. 珠三坳陷烃源岩及油源研究再认识[J]. 现代地质, 2011, 25(6):1121-1130. doi:10.3969/j.issn.1000-8527.2011.06.010 FU Ning, LI Youchuan, SUN Jianxin, et al. Recognition of oil source and source rocks in Zhu III Depression[J]. Geoscience, 2011, 25(6):1121-1130. doi:10.3969/j.issn.1000-8527.2011.06.010
[9] 傅宁,李友川,徐建勇,等. 珠三坳陷文昌组中深湖相烃源岩新的生物标志化合物组合模式与油源对比[J]. 中国海上油气, 2012, 24(4):13-19. doi:10.3969/j.issn.1673-1506.2012.04.003 FU Ning, LI Youchuan, XU Jianyong, et al. A new biomarker combination in the Wenchang Formation source rock of middle-deep lacustrine facies and oil-source correlations in Zhu III Depression[J]. China Offshore Oil and Gas, 2012, 24(4):13-19. doi:10.3969/j.issn.1673-1506.2012.04.003
[10] 游君君,杨希冰,雷明珠,等. 珠江口盆地珠三坳陷不同沉积环境下烃源岩和原油中长链三环萜烷、二环倍半萜烷分布特征及地球化学意义[J]. 天然气地球科学, 2020, 31(7):904-914. doi:10.11764/j.issn.1672-1926.2020.03.010 YOU Junjun, YANG Xibing, LEI Mingzhu, et al. The characteristics and significances of cheilanthane tricyclic terpanes and bicyclic sesquiterpanes in source rocks and oils under different depositional environments in Zhu III Depression, Pearl River Mouth Basin[J]. Natural Gas Geoscience, 2020, 31(7):904-914. doi:10.11764/j.issn.1672-1926.2020.03.010
[11] 张迎朝. 珠江口盆地西部南断裂带油气成藏特征与成藏模式[J]. 石油地球物理勘探, 2012, 47(5):786-794. doi:10.13810/j.cnki.issn.1000-7210.2012.05.017 ZHANG Yingzhao. Hydrocarbon pooling characteristics and pooling patterns in south fault belt, west Pearl River Mouth Basin[J]. Oil Geophysical Prospecting, 2012, 47(5):786-794. doi:10.13810/j.cnki.issn.1000-7210.20-12.05.017
[12] 姜华,王华,李俊良,等. 珠江口盆地珠三坳陷断层特征及其对油气成藏的控制作用[J]. 石油实验地质, 2008, 30(5):460-466. doi:10.3969/j.issn.1001-6112.2008.05.007 JIANG Hua, WANG Hua, LI Junliang, et al. Hydrocarbon accumulation characteristics and accumulation model of the southern fault zone in the western Pearl River Mouth Basin[J]. Petroleum Geology and Experiment, 2008, 30(5):460-466. doi:10.3969/j.issn.1001-6112.2008.05.007
[13] 龚再升. 南海北部大陆边缘盆地分析及油气聚集[R]. 保定:中国海洋石油勘探开发研究中心, 2002. GONG Zaisheng. Basin analysis and hydrocarbon accumulation in the northern margin of South China Sea[R]. Baoding:China Marine Petroleum Exploration and Development Research Center, 2002.
[14] 朱伟林,黎明碧,吴培康. 珠江口盆地珠三坳陷石油体系[J]. 石油勘探与开发, 1997, 24(6):21-23. ZHU Weilin, LI Mingbi, WU Peikang. Petroleum system in Zhu III Depression of Pearl River Mouth Basin[J]. Petroleum Exploration and Development, 1997, 24(6):21-23.
[15] 李辉,陈胜红,张迎朝,等. 珠江口盆地珠三坳陷断裂特征与油气成藏[J]. 海洋地质与第四纪地质, 2014, 34(3):115-124. LI Hui, CHEN Shenghong, ZHANG Yingzhao, et al. Fracture characteristics and hydrocarbon accumulation in Zhusan Depression[J]. Marine Geology and Quaternary Geology, 2014, 34(3):115-124.
[16] 张迎朝,陈志宏,李绪深,等. 珠江口盆地文昌B凹陷及周边油气成藏特征与有利勘探领域[J]. 石油实验地质, 2011, 33(3):297-302. doi:10.3969/j.issn.1001-6112.2011.03.015 ZHANG Yingzhao, CHEN Zhihong, LI Xushen, et al. Petroleum accumulation characteristics and favorable exploration directions in Wenchang B Sag and its surrounding areas, Pearl River Mouth Basin[J]. Petroleum Geology and Experiment, 2011, 33(3):297-302. doi:10.3969/j.issn.1001-6112.2011.03.015
[17] 卢双舫,马延伶,曹瑞成,等. 优质烃源岩评价标准及其应用:以海拉尔盆地乌尔逊凹陷为例[J]. 地球科学——中国地质大学学报, 2012, 37(3):535-542. doi:10.3799/dqkx.2012.060 LU Shuangfang, MA Yanlian, CAO Ruicheng, et al. Evaluation criteria of high-quality source rocks and its applications:Taking the Wuerxun Sag in Hailaer Basin as an example[J]. Earth Science-Journal of China University of Geosciences, 2012, 37(3):535-542. doi:10.3799/dqkx.2012.060
[18] 庞雄奇,郭永华,姜福杰,等. 渤海海域优质烃源岩及其分布预测[J]. 石油与天然气地质, 2009, 33(4):393-397. doi:10.3321/j.issn:0253-9985.2009.04.001 PANG Xiongqi, GUO Yonghua, JIANG Fujie, et al. Highquality source rocks in Bohai Sea and their distribution prediction[J]. Oil & Gas Geology, 2009, 33(4):393-397. doi:10.3321/j.issn:0253-9985.2009.04.001
[19] 张林晔,孔祥星,张春荣,等. 济阳坳陷下第三系优质烃源岩的发育及其意义[J]. 地球化学, 2003, 32(1):35-41. doi:10.3321/j.issn:0379-1726.2003.01.005 ZHANG Linye, KONG Xiangxing, ZHANG Chunrong, et al. High-quality oil-prone source rocks in Jiyang Depression[J]. Geochemistry, 2003, 32(1):35-41. doi:10.3321/-j.issn:0379-1726.2003.01.005
[20] 侯读杰,张善文,肖建新. 济阳坳陷优质烃源岩特征与隐蔽油气藏的关系分析[J]. 地学前缘, 2008, 15(2):137-146. doi:10.3321/j.issn:1005-2321.2008.02.016 HOU Dujie, ZHANG Shanwen, XIAO Jianxin. Relationship between high-quality source rock characteristics and subtle reservoirs in Jiyang Depression[J]. Earth Science Frontiers, 2008, 15(2):137-146. doi:10.3321/j.issn:1005-2321.2008.02.016
[21] HUANG B, XIAO X, ZHANG M. Geochemistry, grouping and origins of crude oils in the western Pearl River Mouth Basin, offshore South China Sea[J]. Organic Geochemistry, 2003, 34(7):993-1008. doi:10.1016/S0140-6701(04)91276-3
[22] CHENG P, TIAN H, HUANG B J, et al. Tracing earlycharged oils and exploration directions for the Wenchang A Sag, western Pearl River Mouth Basin, offshore South China Sea[J]. Organic Geochemistry, 2013, 61:15-26. doi:10.1016/j.orggeochem.2013.06.003
[23] CHENG P, XIAO X, GAI H, et al. Characteristics and origin of carbon isotopes of n-alkanes in crude oils from the western Pearl River Mouth Basin, South China Sea[J]. Marine and Petroleum Geology, 2015, 67:217-229. doi:10.1016/j.marpetgeo.2015.05.028
[24] CHENG P, XIAO X, TIAN H, et al. Source controls on geochemical characteristics of crude oils from the Qionghai Uplift in the western Pearl River Mouth Basin, offshore South China Sea[J]. Marine and Petroleum Geology, 2013, 40:85-98. doi:10.1016/j.marpetgeo.2012.10.003
[25] 朱筱敏,葛家旺,宋爽,等. 南海北部长昌鹤山凹陷渐新世陆架边缘三角洲—深水扇地震响应及形成条件[J]. 古地理学报, 2016, 18(3):367-378. doi:10.7605/gdlxb.2016.03.026 ZHU Xiaomin, GE Jiawang, SONG Shuang, et al. Seismic response and forming conditions of oligocene continental shelf edge delta-deepwater fan in Changchang-Heshan Sag, northern South China Sea[J]. Journal of Palaeogeography, 2016, 18(3):367-378. doi:10.7605/gdlxb.2016.03.026
[26] PETERS K E, MOLDOWAN J M. The biomarker guide[C]. New Jersey:Interpreting molecular fossils in petroleum and ancient sediments, 1993.
[27] PETERS K E, WALTERS, C C, MOLDOWAN, J M. Biomarkers and isotopes in petroleum exploration and earth history[M]. Cambridge, United Kingdom:Cambridge University Press, 2005.
[28] HUNT J. Petroleum geochemistry and geology[M]. San Francisco:Freeman W H, 1979.
[29] SCHWARK L, FRIMMEL A. Chemostratigraphy of the Posidonia Black Shale, SW-Germany:II. Assessment of extent and persistence of photic-zone anoxia using aryl isoprenoid distributions[J]. Chemical Geology, 2004, 206:231-248. doi:10.1016/j.chemgeo.2003.12.008