桑托斯盆地湖相碳酸盐岩储层特征及控制因素

doi:10.11885/j.issn.1674-5086.2019.07.18.02

摘要/Abstract

摘要： 巴西桑托斯盆地盐下湖相碳酸盐岩领域油气资源十分丰富，是世界油气勘探的热点地区。利用桑托斯盆地41口井的岩芯、薄片等资料，明确了盐下湖相碳酸盐岩包括以微生物作用为主的微生物礁叠层石灰岩和以机械成因为主的生屑滩贝壳灰岩两种类型。盐下湖相碳酸盐岩储层整体上属于孔隙型灰岩储层，孔隙度整体上属于中等-好，渗透率中等。储层孔隙类型以原生孔隙为主，并受后期溶蚀改造。根据碳氧同位素地球化学资料、介形虫古生物等资料分析，总结出桑托斯盆地湖相碳酸盐岩储层发育主要受湖水古盐度、古构造格局和沉积相带3种因素控制。其中，湖水古盐度控制储层成因类型，古构造格局控制储层宏观分布，沉积相带控制储层物性特征。预测了桑托斯盆地东部隆起带和中央拗陷带的低凸起是湖相碳酸盐岩储层发育有利区带，对该地区油气勘探具有实践指导意义。

关键词: 湖相碳酸盐岩, 储层, 桑托斯盆地, 盐下, 巴西

Abstract: The lacustrine carbonate of pre-salt in Santos Basin is rich in oil and gas resources, a hotspots of exploration in the world. Based on analysis of cores, thin sections from 41 wells, we determine two types of carbonate developed including microbial reef strobitolites limestone and bioclastic bank coquinas. The lacustrine carbonate is porous limestone reservoir, medium porosity and permeability. The main pore type is primary pore, which had undergone reconstruction from later dissolution. Analysis of C-O isotope data and Ostracoda materials leads to the conclusion that three main elements, paleo-salinity of water, paleo-structure, sedimentary facies, are the main control factors lacustrine carbonate reservoir development. Genesis types of carbonate reservoir is controlled by paleo-salinity of water. Distribution of reservoir is controlled by paleo-structure. And physical property of reservoir is controlled by sedimentary facies. Eastern uplift zone and lower horsts of central depression zone is the favorable area to develop lacustrine carbonate reservoir, helpful to direct exploration deployment.

Key words: lacustrine carbonate, reservoir, Santos Basin, pre-salt, Brazil

中图分类号:

TE122

贾怀存, 康洪全, 梁建设, 程涛, 张世鑫. 桑托斯盆地湖相碳酸盐岩储层特征及控制因素[J]. 西南石油大学学报(自然科学版), 2021, 43(2): 1-9.

JIA Huaicun, KANG Hongquan, LIANG Jianshe, CHENG Tao, ZHANG Shixin. Characteristic and Developmental Controlled Factors of Pre-salt Lacustrine Carbonate, Santos Basin[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(2): 1-9.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal15.magtechjournal.com/Jwk_xnzk/CN/10.11885/j.issn.1674-5086.2019.07.18.02

http://journal15.magtechjournal.com/Jwk_xnzk/CN/Y2021/V43/I2/1

参考文献

[1] 汪新伟,邬长武,郭永强,等.巴西桑托斯盆地卢拉油田成藏特征及对盐下勘探的启迪[J].中国石油勘探,2013,18(3):61-69. doi:10.3969/j.issn.1672-7703.2013.03.010 WANG Xinwei, WU Changwu, GUO Yongqiang, et al. Accumulation feature of Lula Oilfield and its exploratory implication for presalt reservoirs in Santos Basin, Brazil[J]. China Petroleum Exploration, 2013, 18(3):61-69. doi:10.3969/j.issn.1672-7703.2013.03.010
[2] 康洪全,贾怀存,程涛,等.南大西洋两岸含盐盆地裂谷层序油气地质特征与油气分布特征对比[J].地质科技情报,2018,37(4):113-119. doi:10.19509/j.cnki.dzkq.2018.0414 KANG Hongquan, JIA Huaicun, CHENG Tao, et al. Compared analysis of petroleum geology and hydrocarbon accumulation of rift sequence in salt basins on both sides of South Atlantic Ocean[J]. Geological Science and Technology Information, 2018, 37(4):113-119. doi:10.19509/j.cnki.dzkq.2018.0414
[3] 邓超,白国平,仲米虹,等.巴西桑托斯盆地含油气系统划分与评价[J]. 海相油气地质,2014,19(3):35-42. doi:10.3969/j.issn.1672-9854.2014.03.005 DENG Chao, BAI Guoping, ZHONG Mihong, et al. Division and evaluation of petroleum systems in the Santos Basin, Brazil[J]. Marine Origin Petroleum Geology, 2014, 19(3):35-42. doi:10.3969/j.issn.1672-9854.2014.03.005
[4] 康洪全,程涛,李明刚,等.巴西桑托斯盆地油气成藏特征及主控因素分析[J].中国海上油气,2016,28(4):1-8. doi:10.11935/j.issn.1673-1506.2016.04.001 KANG Hongquan, CHENG Tao, LI Minggang, et al. Characteristics and main control factors of hydraocarbon accumulation in Santos Basin, Brazil[J]. China Offshore Oil and Gas, 2016, 28(4):1-8. doi:10.11935/j.issn.1673-1506.2016.04.001
[5] 金焕东,吴谋远.中外石油巨头联合体中标巴西最大盐下油田:中国海外油气投资呈现新特点[J].国际石油经济,2014(1-2):19-20. JIN Huandong, WU Mouyuan. Winning the bidding of pre-salt oil field by Chinese and foreign oil giants show the new characteristic of Chinese overseas oil and gas investment[J]. International Petroleum Economics, 2014(1-2):19-20.
[6] 何娟,何登发,李顺利,等.南大西洋被动大陆边缘大油气田形成条件与分布规律——以巴西桑托斯盆地为例[J].中国石油勘探,2011,16(3):57-67. doi:10.3969/j.issn.1672-7703.2011.03.006 HE Juan, HE Dengfa, LI Shunli, et al. Formation and distribution of giant oil and gas fields in passive continental margin of South Atlantic Ocean:A case study of Santos Basin in Brazil[J]. China Petroleum Exploration, 2011, 16(3):57-67. doi:10.3969/j.issn.1672-7703.2011.03.006
[7] 熊利平,邬长武,郭永强,等.巴西海上坎波斯与桑托斯盆地油气成藏特征对比研究[J].石油实验地质,2013,35(4):419-425. doi:10.11781/sysydz201304419 XIONG Liping, WU Changwu, GUO Yongqiang, et al. Petroleum accumulation characteristics in Campos and Santos Basin, offshore Brazil[J]. Petroleum Geology & Experiment, 2013, 35(4):419-425. doi:10.11781/sysydz201304419
[8] 贾怀存.全球大油气田勘探进展及勘探启示[J].科技导报,2014,32(8):76-83. doi:10.3981/j.issn.1000-7857.2014.08.012 JIA Huaicun. Progress and revelation of exploration of large oil and gas fields around the globe[J]. Science and Technology Review, 2014, 32(8):76-83. doi:10.3981/j.issn.1000-7857.2014.08.012
[9] RIDING R. Classification of microbial carbonates[M]//Riding R. Calcareous algae and stromatolites. Berlin:Springer, 1991. doi:10.1007/978-3-642-52335-9_2
[10] SANTOS E D, AYRES H F, PEREIRA A, et al. Santos microbial carbonate reservoirs:A challenge[C]. OTC 24446-MS, 2013. doi:OTC-24446-MS
[11] BOCHACS K M, LAMB-WOZNIAK K, DEMKO T M, et al. Vertical and lateral distribution of lacustrine carbonate lithofacies at the parasequence scale in the Miocene Hot Spring limestone, Idaho:An analog addressing reservoir presence and quality[J]. AAPG Bulletin, 2013, 97(11):1967-1995. doi:10.1306/07081312192
[12] JONES G D, XIAO Yitian. Geothermal convection in South Atlantic subsalt lacustrine carbonates:Developing diagenesis and reservoirquality predictive concepts with reactive transport models[J]. AAPG Bulletin, 2013, 97(8):1249-1271. doi:10.1306/02191312162
[13] 闫伟鹏,杨涛,李欣,等.中国陆上湖相碳酸盐岩地质特征及勘探潜力[J].中国石油勘探,2014,19(4):11-17. doi:10.3969/j.issn.1672-7703.2014.04.002 YAN Weipeng, YANG Tao, LI Xin, et al. Geological characteristics and hydrocarbon exploration potential of lacustrine carbonate rock in China[J]. China Petroleum Exploration, 2014, 19(4):11-17. doi:10.3969/j.issn.1672-7703.2014.04.002
[14] 康洪全,吕杰,程涛,等.巴西桑托斯盆地盐下湖相碳酸盐岩储层特征[J].海洋地质与第四纪地质,2018,38(4):170-178. doi:10.16562/j.cnki.0256-1492.2018.04.015 KANG Hongquan, LÜ Jie, CHENG Tao, et al. Characters of pre-salt lacustrine carbonate reservoir, Santos Basin, Brazil[J]. Marine Geology & Quaternary Geology, 2018, 38(4):170-178. doi:10.16562/j.cnki.0256-1492.2018.04.015
[15] 康洪全,吕杰,程涛.桑托斯盆地白垩系盐下Barra Velha组叠层石灰岩沉积环境探讨[J].海相油气地质,2018,23(1):29-36. doi:10.3969/j.issn.1672-9854.2018.01.004 KANG Hongquan, LÜ Jie, CHENG Tao. Depositional environment of stromatolitic limestone of pre-salt Barra Velha Formation in Santos Basin, Brazil[J]. Marine Origin Petroleum Geology, 2018, 23(1):29-36. doi:10.3969/j.issn.1672-9854.2018.01.004
[16] COBBOLD P R, MEISLING K E, MOUNT V S. Reactivation of an obliquely rifted margin, Campos and Santos Basins, southeastern Brazil[J]. AAPG Bulletin, 2001, 85(11):1925-1944. doi:10.1306/8626D0B3-173B-11D7-8645000102C1865D
[17] CONTRERAS J, RAINER Z, BOWMAN S, et al. Seismic stratigraphy and subsidence analysis of the southern Brazilian margin (Campos, Santos and Pelotas Basins)[J]. Marine & Petroleum Geology, 2010, 27(9):1952-1980. doi:10.1016/j.marpetgeo.2010.06.007
[18] 邬长武.巴西桑托斯盆地盐下层序油气地质特征与有利区预测[J].石油实验地质,2015,37(1):53-56,63. doi:10.11781/sysydz201501053 WU Changwu. Petroleum geology characteristics and exploration targets of pre-salt formations in Santos Basin, Brazil[J]. Petroleum Geology & Experiment, 2015, 37(1):53-56, 63. doi:10.11781/sysydz201501053
[19] 温志新,童晓光,张光亚,等.巴西被动大陆边缘盆地群大油气田形成条件[J].西南石油大学学报(自然科学版),2012,34(5):1-9. doi:10.3863/j.issn.1674-5086.2012.05.001 WEN Zhixin, TONG Xiaoguang, ZHANG Guangya, et al. Build up conditions of basin group large oil gas field of passive continental margin of Brazil Offshore[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2012, 34(5):1-9. doi:10.3863/j.issn.1674-5086.2012.05.001
[20] 程涛,康洪全,白博,等.巴西桑托斯盆地盐下湖相碳酸盐岩勘探关键技术及其应用[J].中国海上油气,2018,30(4):27-35. doi:10.11935/j.issn.1673-1506.2018.04.004 CHENG Tao, KANG Hongquan, BAI Bo, et al. Key technologies and their application in exploration of pre-salt lacustrine carbonate rock in Santos Basin, Brazil[J]. China Offshore Oil and Gas, 2018, 30(4):27-35. doi:10.11935/j.issn.1673-1506.2018.04.004
[21] FOLK R L. Practical petrographic classification of limestones[J]. AAPG Bulletin, 1959, 43(1):1-38. doi:10.1306/0BDA5C36-16BD-11D7-8645000102C1865D
[22] 夏青松,田景春,倪新锋.湖相碳酸盐岩研究现状及意义[J].沉积与特提斯地质,2003,23(1):105-112. doi:10.3969/j.issn.1009-3850.2003.01.015 XIA Qingsong, TIAN Jingchun, NI Xinfeng. Lacustrine carbonate rocks in China:An overview[J]. Sedimentary Geology and Tethyan Geology, 2003, 23(1):105-112. doi:10.3969/j.issn.1009-3850.2003.01.015