渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制

于海波; 王德英; 牛成民; 李龙

doi:10.11781/sysydz201502150

渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制

doi: 10.11781/sysydz201502150

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300452

基金项目: 国家科技重大专项(2011ZX05023-006-002)资助。

详细信息

作者简介:
于海波(1980—),男,硕士,工程师,从事石油地质与勘探研究。E-mail:yuhb3@cnooc.com.cn。

中图分类号: TE122.2
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出版历程
- 收稿日期: 2013-12-16
- 修回日期: 2015-01-05
- 刊出日期: 2015-03-28

Characteristics and formation mechanisms of buried hill carbonate reservoirs in Bonan Low Uplift, Bohai Bay

Bohai Oilfield Research Institute, Tianjin Branch of CNOOC Ltd., Tianjin 300452, China

摘要

摘要: 碳酸盐岩潜山是渤南低凸起潜山中重要的油气勘探和开发目标,运用钻井、地震、岩心、薄片、测井等资料,以BZ28-1碳酸盐岩潜山油气田为例,对碳酸盐岩储层特征及形成机制进行了综合分析。渤南低凸起碳酸盐岩潜山包括风化壳岩溶型储层和内幕溶蚀型储层2套储集系统,岩性主要为白云岩,其次为灰岩,储集空间主要为晶间孔、裂缝和溶蚀孔隙。物性分析表明,白云岩中的不等粒白云岩、粉—细晶白云岩和粉晶白云岩物性最好,且普遍好于灰岩。渤南低凸起碳酸盐岩潜山储层的形成主要受沉积相、岩溶作用和构造破裂作用的控制:(1)沉积相是储层形成的基础,有利的储层主要分布在局限海、潮间坪和潮坪中的白云岩和部分灰岩中;(2)岩溶作用是储层形成的关键,风化壳岩溶型储层和内幕溶蚀型储层主要分布在不整合面顶部以下0~250 m和0~150 m的范围内,岩溶古地貌中的岩溶高地和宽缓的岩溶斜坡相带是岩溶储层发育最有利的部位;(3)构造破裂作用是储层形成的纽带,在不整合面附近的半充填或未充填的构造缝和溶蚀缝,既可作为油气的储集空间和渗流通道,也可与溶蚀孔隙复合,形成裂缝—孔隙型和孔隙—裂缝型储层,大大改善了储集性能。
- 碳酸盐岩潜山 /
- 储层特征 /
- 形成机制 /
- 岩溶作用 /
- 渤南低凸起 /
- 渤海湾盆地
Abstract: The carbonate rock buried hills are important exploration and development targets in the Bonan Low Uplift of the Bohai Bay. Based on drilling, seismic, core, thin section and well logging data, the characteristics and formation mechanisms of the buried hill carbonate reservoirs were studied. They were divided into two reservoir systems, including the weathering crust karst reservoir and the inner dissolution reservoir. Dolomites were dominant, while limestones took second place. Reservoir space mainly included intercrystalline porosity, fractures and dissolved pores. The results of physical characteristic analysis showed that inequality grain dolomites, powder crystal-aplitic dolomites and silt crystal dolomites were better than limestones. Sedimentary facies, karstification and tectonic disruption were recognized as the main formation mechanisms of the buried hill carbonate reservoirs in the Bonan Low Uplift. (1) Sedimentary facies were the basis of reservoir formation. Favorable reservoirs mainly distributed in the dolomites and limestones of restricted sea, intertidal flat and tidal flat facies. (2) Karstification was the key to the formation of buried hill carbonate reservoirs. Weathering crust karst reservoirs and inner dissolution reservoirs developed within 0-250 and 0-150 meters under the top of the unconformity. Favorable karst reservoirs developed in the karst highland and karst slope of karst palaeogeomorphology. (3) Tectonic disruption was the connection of the formation of buried hill carbonate reservoir. Semi-filled or unfilled structural fractures and dissolution fractures provided important reservoir porosity and migration channels. When combined with dissolution pores, they formed fracture-pore and pore-fracture reservoirs, which improved reservoir performance.
- carbonate rock buried hill /
- reservoir characteristics /
- formation mechanism /
- karstification /
- Bonan Low Uplift /
- Bohai Bay Basin

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参考文献(21)

[1]	杨培山,李功治.任丘碳酸盐岩油藏的开发[J].石油学报,1980,1(4):57-64. Yang Peishan,Li Gongzhi.Development of carbonate reservoirs in the Renqiu oil field[J].Acta Petrolei Sinica,1980,1(4):57-64.
[2]	赵贤正,王权,金凤鸣,等.冀中坳陷隐蔽型潜山油气藏主控因素与勘探实践[J].石油学报,2012,33(S1):71-79. Zhao Xianzheng,Wang Quan,Jin Fengming,et al.Main controlling factors and exploration practice of subtle buried-hill hydrocarbon reservoir in Jizhong depression[J].Acta Petrolei Sinica,2012,33(S1):71-79.
[3]	吴伟涛,高先志,卢学军,等.冀中坳陷潜山油气输导体系及与油气藏类型的匹配关系[J].地球科学与环境学报,2011,33(1):78-83. Wu Weitao,Gao Xianzhi,Lu Xuejun,et al.Pathway System and Their Matching Relations with Buried Hill Reservoir in Jizhong Depression[J].Journal of Earth Sciences and Environment,2011,33(1):78-83.
[4]	李亚辉,段宏亮,邱旭明,等.苏北盆地古潜山岩溶储层形成机制探讨[J].石油实验地质,2011,33(5):495-498. Li Yahui,Duan Hongliang,Qiu Xuming,et al.Formation mechanism of karst reservoir in buried hill,North Jiangsu Basin[J].Petroleum Geology & Experiment,2011,33(5):495-498.
[5]	林会喜.济阳坳陷桩西埕岛地区下古生界潜山储层岩溶作用[J].成都理工大学学报:自然科学版,2004,31(5):490-497. Lin Huixi.Karstification of Lower Paleozoic reservoir in Zhuangxi-Chengdao area,Jiyang sag,China[J].Journal of Chengdu University of Technology:Science & Technology Edition,2004,31(5):490-497.
[6]	马立驰,王永诗,姜在兴,等.断陷盆地碳酸盐岩潜山储层模式:以渤海湾盆地济阳坳陷为例[J].石油实验地质,2006,28(1):21-24. Ma Lichi,Wang Yongshi,Jiang Zaixing,et al.Reservoir model of carbonate buried-hill in rifted basin:Taking the Jiyang Depression as an example[J].Petroleum Geology & Experiment,2006,28(1):21-24.
[7]	张奎华,马立权.济阳坳陷下古生界碳酸盐岩潜山内幕储层再研究[J].油气地质与采收率,2007,14(4):26-28. Zhang Kuihua,Ma Liquan.Restudy of tamer reservoir of buried hill of low-Paleozoic carbonate rocks in Jiyang Depression[J].Petro-leum Geology and Recovery Efficiency,2007,14(4):26-28.
[8]	刘树根,时华星,王国芝,等.桩海潜山下古生界碳酸盐岩储层形成作用研究[J].天然气工业,2007,27(10):1-5. Liu Shugen,Shi Huaxing,Wang Guozhi,et al.Formation mechanism of lower Paleozoic carbonate reservoirs in Zhuanghai buried hill[J].Natural Gas Industry,2007,27(10):1-5.
[9]	李欣,闫伟鹏,崔周旗,等.渤海湾盆地潜山油气藏勘探潜力与方向[J].石油实验地质,2012,34(2):140-144. Li Xin,Yan Weipeng,Cui Zhouqi,et al.Prospecting potential and targets of buried-hill oil and gas reservoirs in Bohai Bay Basin[J].Petroleum Geology & Experiment,2012,34(2):140-144.
[10]	王雷,史基安,王琪,等.鄂尔多斯盆地西南缘奥陶系碳酸盐岩储层主控因素分析[J].油气地质与采收率,2005,12(4):10-13. Wang Lei,Shi Ji'an,Wang Qi,et al.Analyses on main controlling factors of carbonate reservoirs of Ordovician system in the southwest margin of Ordos Basin[J].Oil & Gas Recovery Technology,2005,12(4):10-13.
[11]	陈学时,易万霞,卢文忠.中国油气田古岩溶与油气储层[J].沉积学报,2004,22(2):244-253. Chen Xueshi,Yi Wanxia,Lu Wenzhong.The paleokarst reservoirs of oil/gas field s in China[J].Acta Sedimentologica Sinica,2004,22(2):244-253.
[12]	徐春华,宋国奇,陈丽.胜利油区下古生界潜山岩溶作用及宏观储集特征[J].复式油气田,1997(3):32-37. Xu Chunhua,Song Guoqi,Chen Li.Karstification and macroscopic reservoir characteristics for the Lower Paleozoic buried-hills in Shengli petroleum province[J].Multiple Oil-Gas Field,1997(3):32-37.
[13]	王世虎,宋国奇,徐春华,等.胜利油区早古生代沉积相[J].岩相古地理,1997,17(6):32-37. Wang Shihu,Song Guoqi,Xu Chunhua,et al.Early palaeozoic sedimentary facies in the Shengli Oil Province,North China Platform[J].Sedimentary Facies and Palaeogeography,1997,17(6):32-37.
[14]	付立新,杨池银,肖敦清.大港千米桥潜山储层形成对油气分布的控制[J].海相油气地质,2007,12(2):33-38. Fu Lixin,Yang Chiyin,Xiao Dunqing.Controls of carbonate reservoir diagenesis on hydrocarbon distribution in Qianmiqiao buried-hill reservoirs,Bohaiwan basin[J].Marine Origin Petroleum Geology,2007,12(2):33-38.
[15]	仵永强,郑伟东.塔里木盆地三道桥地区潜山储层预测[J].断块油气田,2013,20(4):439-442. Wu Yongqiang,Zheng Weidong.Buried hill reservoir prediction in Sandaoqiao Area of Tarim Baisn[J].Fault-Block Oil & Gas Field,2013,20(4):439-442.
[16]	汪泽成,赵文智,胡素云,等.我国海相碳酸盐岩大油气田油气藏类型及分布特征[J].石油与天然气地质,2013,34(2):153-160. Wang Zecheng,Zhao Wenzhi,Hu Suyun,et al.Reservoir types and distribution characteristics of large marine carbonate oil and gas fields in China[J].Oil & Gas Geology,2013,34(2):153-160.
[17]	廖保方,王群会,于忠良,等.冀东南堡凹陷碳酸盐岩古潜山油藏开发关键技术[J].特种油气藏,2013,20(4):62-65. Liao Baofang,Wang Qunhui,Yu Zhongliang,et al.Jidong nanpu sag of carbonate buried hill reservoir development key technology[J].Special Oil & Gas Reservoirs,2013,20(4):62-65.
[18]	金平信,刘承红,高保国,等.渤南凹陷渤深6块潜山储层描述技术[J].地球科学与环境学报,2007,29(2):174-177. Jin Pingxin,Liu Chenghong,Gao Baoguo,et al.Description technology for layer of burial hill oil pool in Boshen-6 Block of Bonan Depression[J].Journal of Earth Sciences and Environment,2007,29(2):174-177.
[19]	曾选萍,茆利,王玉静,等.渤南低凸起潜山岩性识别及储集性能预测[J].特种油气藏,2010,17(3):27-30. Zeng Xuanping,Mao Li,Wang Yujing,et al.Buried hill lithology identification and reservoir quality forecast in Bonan low uplift[J].Special Oil and Gas Reservoirs,2010,17(3):27-30.
[20]	曾治平,倪建华,王敏芳.断裂系统对渤南凸起油气藏分布的影响[J].海洋石油,2002(4):32-36. Zeng Zhiping,Ni Jianhua,Wang Minfang.Rupture system's effect on oil gas formation in Bonan Heave[J].Offshore Oil,2002(4):32-36.
[21]	李友川,黄正吉.渤南凸起BZ28-1油田油气源分析及其地质意义[J].中国海上油气(地质),2001,15(1):83-88. Li Youchuan,Huang Zhengji.Oil and gas sources in BZ28-1 field,Bonan uplift,Bohai Sea[J].China Offshore Oil and Gas (Geology),2001,15(1):83-88.