Sedimentary evolution of a shallow-water delta in a long-term semi-cycle of base-level falling and its application to oilfield development—taking Oilfield A of Baohai Basin as an example
-
摘要:
渤海盆地明下段广泛发育浅水三角洲沉积，基于高分辨率层序地层学方法研究其平面发育形态和纵向演化规律，发现在长周期下降半旋回内部早、中、晚期，浅水三角洲平面展布形态依次为坨状、朵叶状和鸟足状。井间对比结果显示，在纵向上早期湖浪作用强，浅水三角洲前缘砂体间相对孤立、连通性差，但砂体内部物性好；中期分支河道间以侧向叠置为主；晚期河道则以垂向叠加为主。浅水三角洲前缘砂体垂向演化规律，主要受沉积物供给速率和可容空间的相对变化所控制。通过滚动勘探开发，有效地预测了储层砂体展布，而在单砂体水平井开发过程中，浅水三角洲的平面展布形态和纵向叠置关系也影响了水平井的砂岩钻遇率。统计结果表明坨状浅水三角洲水平井砂岩钻遇率最高，为84.0%；鸟足状次之，为81.5%；朵叶状由于河道侧向摆动，钻遇率最低，为72.6%。
Abstract:The Lower Minghuazhen Member of Middle Neogene (N1mL) in the Bohai Basin is dominated by shallow-water deltaic deposits. High-Resolution sequence stratigraphy is applied to reveal the lateral distribution and vertical evolution of the shallow water delta. The deltaic deposits of N1mL are composed of a semi-cycle formed in a long-term base-level falling cycle. During the semi-cycle, sand bodies in blocky, lobate and dendritic shapes are successively observed from bottom to top. Inter-well correlation suggests that the shallow water delta-front sands developed in the early stage are relatively isolated with poor connection and high porosities and permeabilities, indicating a lake of high water level with strong wave action. Later in the middle stage, a swinging distributary channel systems are developed, which resulted in lateral superimposition of deltaic sandbodies. In the final stage, owing to the falling of base level, strong incision occurred and sands were deposited in a pattern of vertical superimposition. Such a distribution pattern of sand bodies was mainly controlled by the relative change in sediment supply and accommodation space. Plane distribution and vertical superimposition relationship of shallow water delta also affect the sand drilling success rate of horizontal wells. Statistics of drilling data reveal that the rate of drilling success is 84.0% for blocky type sand, 81.5% for dendritic type of sand and 72.6%, the lowest, for of lobate type of sand.
-
-
表 1 明下段浅水三角洲沉积微相类型
Table 1. Micro-faceis types of the shallow-water delta in N1mL
相 亚相 微相 岩性 砂岩厚度 韵律性 沉积构造 测井形态 浅水三角洲 浅水三角洲前缘 分流河道 中细砂岩 5~15m 正韵律 槽状、羽状交错层理 箱形、钟形 天然堤 粉砂岩、泥岩 1~2m 正韵律 爬升、砂纹交错层理 指形 河口坝 粉、细砂岩 2~5m 反韵律 波状、块状层理 漏斗形 分流间湾 泥岩 0~0.5m - 块状层理 平直形 
下载: 导出CSV
表 2 A油田勘探开发历程
Table 2. Exploration and development history of Oilfield A
油田(区块) 发现时间(年) 投产时间(年) 储量规模 A-主体 2003 2007 中型 A-N 2005 2009 中型 A-W 2010 2015 中型 A-SW 2010 2015 中型 A-NW 2015 2016 小型
下载: 导出CSV
-
[1] 朱筱敏, 赵东娜, 曾洪流, 等.松辽盆地齐家地区青山口组浅水三角洲沉积特征及其地震沉积学响应[J].沉积学报, 2013, 31(5):889-897. http://d.old.wanfangdata.com.cn/Periodical/cjxb201305014
ZHU Xiaomin, ZHAO Dongna, ZENG Hongliu, et al. Sedimentary characteristics and seismic sedimentologic responses of shallow-water delta of Qingshankou formation in Qijia area, Songliao basin[J]. Acta Sedimentologica Sinica, 2013, 31(5) :889-897. http://d.old.wanfangdata.com.cn/Periodical/cjxb201305014
[2] 施辉, 刘震, 张勤学, 等.柴达木盆地西南区古近系浅水三角洲形成条件及砂体特征[J].中南大学学报(自然科学版), 2015, 46(1):188-198. http://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201501026.htm
SHI Hui, LIU Zhen, ZHANG Qinxue, et al. Shallow-water delta forming condition and sandbody characteristics in Paleogene of southwestern Qaidam basin[J]. Journal of Central South University (Science and Technology), 2015, 46(1):188-198. http://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201501026.htm
[3] 付晶, 吴胜和, 王哲, 等.湖盆浅水三角洲分流河道储层构型模式:以鄂尔多斯盆地东缘延长组野外露头为例[J].中南大学学报(自然科学版), 2015, 46(11):4174-4182. doi: 10.11817/j.issn.1672-7207.2015.11.027
FU Jing, WU Shenghe, WANG Zhe, et al. Architecture model of shallow-water delta distributary channel in lake basin: A case study of the Yanchang formation outcrops in the eastern margin of Ordos basin[J]. Journal of Central South University (Science and Technology), 2015, 46(11):4174-4182. doi: 10.11817/j.issn.1672-7207.2015.11.027
[4] Zenger D H, Dunham J B, Ethington R L. Concepts and models of dolomitizatio [G]. Tulsa: Society of Eonomic Paleontologists and Mineralogists, Special Publication 28, 1980: 1-320.
[5] Sun S Q. Dolomite reservoirs, porosity evolution and reservoir, characteristic[J]. AAPG Bulletin, 1995, 79(2):186-204.
[6] Christopher H, Brian G. Hydrodynamics and sediment transport within the inner surf zone of a lacustrine multiple-barred near shore[J]. Marine Geology, 2005, 218:37-63. doi: 10.1016/j.margeo.2005.02.029
[7] R M Flores. Pictured cliffs sandstone upper Cretaceous distributary channel, delta-front, and beach-bar deposits, southwestern San Juan basin, New Mexico[J]. AAPG Bulletin, 1979, 63(3):451-452.
[8] Heather shaw A D, Davies A G. Resonant wave reflection by transverse bedforms and its relation to beaches and offshore bars[J].Marine Geology, 1985, 62(3/4):321-338. https://www.sciencedirect.com/science/article/abs/pii/0025322785901227
[9] Miall A D. Reservior heterogenerity in fluvial sandstone[J].AAPG Bulletin, 1988, 72(6):682-697.
[10] Chen P H, Chen Z Y, Zhang Q M.Sequence stratigraphy and continental margin development of the northwestern shelf of the South China Sea[J].AAPG Bulletin, 1993, 77:842-862.
[11] Hayes M O.Morphology of Sand Accumulation in Estuaries in Cronin L.E(ed.)[M].Estuarine Research, 1975, 2: 3-22.
[12] 赵翰卿.大庆油田河流-三角洲沉积的油层对比方法[J].大庆石油地质与开发, 1988, 1(4):25-31. http://www.cnki.com.cn/Article/CJFDTotal-DQSK198804004.htm
ZHAO Hanqing.Formation correlation of fluvial-deltaic deposition in Daqing oil filed[J].Petroleum Geology & Oilfield Development in Daqing, 1988, 1(4):25-31. http://www.cnki.com.cn/Article/CJFDTotal-DQSK198804004.htm
[13] 李增学, 魏久传.鲁西南晚石炭世潮汐三角洲与煤聚积规律[J].煤炭地质, 1977, 22(1):1-7. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199700385613
LI Zengxue, WEI Jiuchuan.Characteristics of tidal delta and coal accumulation in late Carboniferous age in southwest Shandong coalfield[J].Journal of China Coal Society, 1997, 22(1):1-7. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199700385613
[14] 李俊良, 左倩媚, 解习农, 等.琼东南盆地深水区新近系沉积特征与有利储盖组合[J].海洋地质与第四纪地质, 2011, 31(6):109-116. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=2d74990a-ec79-4270-9c3a-36d8e68d34df
LI Junliang, ZUO Qianmei, XIE Xinong, et al.Neogene depositional features and favorable reservoir-cap combinations in the deepwater of Qiongdongnan basin, north South China Sea[J].Marine Geology and Quaternary Geology, 2011, 31(6):109-116. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=2d74990a-ec79-4270-9c3a-36d8e68d34df
[15] 唐武, 王英民, 黄志超, 等.琼东南盆地南部深水区中新统层序地层地震相与沉积演化特征[J].海相油气地质, 2012, 17(2):20-25. doi: 10.3969/j.issn.1672-9854.2012.02.004
TANG Wu, WANG Yingmin, HUANG Zhichao, et al.Seismic facies and sedimentary evolution characteristics of Miocene sequence strata in the deep-water region, Southern Qiongdongnan Basin[J].Marine Qrigin Petroleum Geology, 2012, 17(2):20-25. doi: 10.3969/j.issn.1672-9854.2012.02.004
[16] 吴小红, 吕修祥, 周心怀, 等.BZ34油区明下段浅水三角洲沉积特征及其油气勘探意义[J].东北石油大学学报, 2009, 33(5):32-36, 40. doi: 10.3969/j.issn.2095-4107.2009.05.008
WU Xiaohong, LU Xiuxiang, ZHOU Xinhuai, et al. Discovery of the shallow delta sediment in Minghuazhen formation in BZ34 oil fields and its significance in oil and gas exploitation[J]. Journal of Northeast Petroleum University, 2009, 33(5) : 32-36, 40. doi: 10.3969/j.issn.2095-4107.2009.05.008
[17] 朱伟林, 李建平, 周心怀, 等.渤海新近系浅水三角洲沉积体系与大型油气田勘探[J].沉积学报, 2008, 26(4):575-582. http://d.old.wanfangdata.com.cn/Periodical/cjxb200804005
ZHU Weilin, LI Jianping, ZHOU Xinhua, et al. Neogene shallow water deltaic system and large hydrocarbon accumulations in Bohai bay, China. [J].Acta Sedimentologica Sinica, 2008, 26(4):575-582. http://d.old.wanfangdata.com.cn/Periodical/cjxb200804005
[18] 赵汉卿, 张建民, 李栓豹, 等.渤海湾盆地A油田新近系明下段沉积特征及演化模式[J].吉林大学学报(地球科学版), 2017, 47(4):1021-1029. http://d.old.wanfangdata.com.cn/Periodical/cckjdxxb201704005
ZHAO Hanqing, ZHANG Jianmin, LI Shuanbao, et al.Sedimentary characteristics and evolution models of lower Part of Minghuazhen formation in Neogene system at a oil field, Bohai bay basin[J].Journal of Jilin University(Earth Science Edition), 2017, 47(4) :1021-1029. http://d.old.wanfangdata.com.cn/Periodical/cckjdxxb201704005
[19] 胡朝元.渤海湾盆地的形成机理与油气分布特点新议[J].石油实验地质, 1982, 4(3)161-167. http://www.sysydz.net/CN/Y1982/V4/I3/161
HU Zhaoyuan. Geodynamic environment of Bohai gulf basin and its oil occurrence[J]. Petroleum Geology & Experiment, 1982, 4(3):161-167. http://www.sysydz.net/CN/Y1982/V4/I3/161
[20] 熊运斌, 杨建文, 陈云英, 等.文南油田开发中后期沉积微相精细研究[J].石油勘探与开发, 2003, 30(2):64-67. doi: 10.3321/j.issn:1000-0747.2003.02.018
XIONG Yunbin, YANG Jianwen, CHEN Yunying, et al.The fine studies of depositional micro-facies on the middlepost development stages in Wennan Oilfield Petroleum[J].Exploration and Development, 2003, 30(2):64-67. doi: 10.3321/j.issn:1000-0747.2003.02.018
[21] 董太禄.渤海现代沉积作用与模式的研究[J].海洋地质与第四纪地质, 1996, 16(4):43-53. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=4a1de689-10a3-4434-9d99-14e66569b667
DONG Tailu.Modern sedimentation models in the Bohai sea[J].Marine Geology and Quaternary Geology, 1996, 16(4):43-53. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=4a1de689-10a3-4434-9d99-14e66569b667
[22] 黎刚, 孙祝友.曹妃甸老龙沟动力地貌体系及演化[J].海洋地质与第四纪地质, 2011, 31(1):11-19. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=dcfe36f9-aaa3-4f00-abf1-9a56cda23927
LI Gang, SUN Zhuyou.Morphodynamic system and the evolution of laolonggou tidal inlet[J].Marine Geology and Quaternary Geology, 2011, 31(1):11-19. http://hydz.chinajournal.net.cn/WKD/WebPublication/paperDigest.aspx?paperID=dcfe36f9-aaa3-4f00-abf1-9a56cda23927
[23] 周立业, 张建民, 张岚, 等.海上油田中深层滩坝相沉积规律精细刻画及储层预测技术[J].大庆石油地质与开发, 2017, 36(2):19-25. doi: 10.3969/J.ISSN.1000-3754.2017.02.003
ZHOU Liye, ZHANG Jianmin, ZHANG Lan, et al. Fine description and reservoir prediction techniques of the mid-depth and deep beach bar facies in offshore oilfield [J].Petroleum Geology & Oilfield Development in Daqing, 2017, 36(2):19-25. doi: 10.3969/J.ISSN.1000-3754.2017.02.003
[24] 封从军, 鲍志东, 杨玲, 等.三角洲前缘水下分流河道储集层构型及剩余油分布[J].石油勘探与开发, 2014, 41(3): 323-329. http://d.old.wanfangdata.com.cn/Periodical/syktykf201403008
FENG Congjun, BAO Zhidong, YANG Ling, et al. Reservoir architecture and remaining oil distribution of deltaic front underwater distributary channel[J]. Petroleum Exploration and Development, 2014, 41(3): 323-329. http://d.old.wanfangdata.com.cn/Periodical/syktykf201403008
[25] Lemons D R, Chan M A.Facies architecture and sequence stratigraphy of fine-grained lacustrine deltas along the eastern margin of late Pleistocene Lake Bonneville, northern Utah and southern Idaho[J].AAPG Bulletin, 1999, 83(4) : 635-665. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=6f83824b1ac3c41bc75199105177c9aa
[26] 赵伦, 王进财, 陈礼, 等.砂体叠置结构及构型特征对水驱规律的影响:以哈萨克斯坦南图尔盖盆地Kumkol油田为例[J].石油勘探与开发, 2014, 41(1): 86-94. http://d.old.wanfangdata.com.cn/Periodical/syktykf201401011
ZHAO Lun, WANG Jincai, CHEN Li, et al. Influences of sandstone superimposed structure and architecture on waterflooding mechanisms: A case study of Kumkol oilfield in the south Turgay basin, Kazakhstan[J]. Petroleum Exploration and Development, 2014, 41(1): 86-94. http://d.old.wanfangdata.com.cn/Periodical/syktykf201401011
[27] 楼章华, 卢庆梅, 蔡希源, 等.湖平面升降对浅水三角洲前缘砂体形态的影响[J].沉积学报, 1998, 16(4):27-31. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800006576
LOU Zhanghua, LU Qingmei, CAI Xiyuan, et al. Influence of lake level fluctuation on sand body shapes at shallow water delta front[J]. Acta Sedimentologica Sinica, 1998, 16(4):27-31. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800006576
[28] 张世广, 柳成志, 卢双舫, 等.高分辨率层序地层学在河、湖、三角洲复合沉积体系的应用——以朝阳沟油田扶余油层开发区块为例[J].吉林大学学报(地球科学版), 2009, 39(3): 361-368. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cckjdxxb200903002
ZHANG Shiguang, LIU Chengzhi, LU Shuangfang, et al.The application of high-resolution sequence stratigraphy in multiplex deposition system of the river, lake and delta——To take the development block of Fuyu oil layer in Chaoyanggou reservoir for example[J]. Journal of Jilin University:Earth Science Edition, 2009, 39(3): 361-368. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cckjdxxb200903002
[29] 刘招君, 董清水, 王嗣敏, 等.陆相层序地层学导论与应用[M].北京:石油工业出版社, 2002:1-87.
LIU Zhaojun, DONG Qingshui, WANG Simin, et al. Introduction to Continental Sequence Stratigraphy and Application [M]. Beijing:Petroleum Industry Press, 2002:1-87.
[30] 刘招君, 胡菲, 孙平昌, 等.再论陆相三级层序内四分方案及其在油气勘探中的应用[J].吉林大学学报(地球科学版), 2013, 43(1): 1-12. http://xuebao.jlu.edu.cn/dxb/EN/abstract/abstract9837.shtml
LIU Zhaojun, HU Fei, SUN Pingchang, et al.Re-discussion on the four division scheme about continental sequence stratigraphy and its application on oil and gas exploration[J]. Journal of Jilin University:Earth Science Edition, 2013, 43(1): 1-12. http://xuebao.jlu.edu.cn/dxb/EN/abstract/abstract9837.shtml
[31] 杨延强, 吴胜和, 岳大力, 等.长期基准面旋回内河口坝构型的演化规律——以胜坨油田坨7断块沙二段下油组为例[J].沉积学报, 2015, 33(2) : 326-336. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201502012
YANG Yanqiang, WU Shenghe, YUE Dali, et al. Evolution of mouth bar complex's architecture in a long-term base-level cycle: A case from the lower Es2 member in fault-block tuo 7, Shengtuo oilfield[J]. Acta Sedimentologica Sinica, 2015, 33(2) : 326-336. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201502012
-
图(9)
表(2)
计量
- 文章访问数: 1893
- PDF下载数: 13
- 施引文献: 0