渤海海域莱州湾凹陷沙河街组硅化碎屑岩地质特征及其储层意义

doi:10.11743/ogg20200517

摘要/Abstract

摘要：

渤海海域莱州湾凹陷硅化碎屑岩以粒间石英晶体孔隙式充填、强烈石英次生加大为特征，局部地区甚至发生低变质作用，表现为变余砂状结构，这在国内外含油气盆地中是极为少见的。运用地震、测井、岩石学和单颗粒锆石U-Pb测年等技术手段，揭示了硅质碎屑岩的地质特征，首次通过锆石测年证实了莱州湾凹陷沙河街组沉积时期存在火山活动。硅质热流体活动证据主要体现在硅质脉体发育，呈多期充注特征，石英颗粒次生加大强烈，岩石甚至出现变余砂状结构；粒间粘土几乎全部热蚀变为黑云母和白云母，并可见“帚状”正在生长的云母类矿物；岩石中发育大量集块状和集簇无序状黄铁矿，不同产状的黄铁矿为多期次热液成因；热场发射扫描电镜下识别出黄铁矿-重晶石-独居石-方铅矿-金红石-硬石膏热液矿物组合。深部硅质热流体进入储层，碎屑石英颗粒产生强烈次生加大，加大石英和硅质沉淀完全充填粒间孔隙，对储层起破坏性作用，但硅化作用大大增强了地层的脆性，在后期构造运动作用下产生大量断裂和微裂缝网络。另外，热液流体溶蚀了储层中的长石类矿物，产生大量长石粒内溶蚀孔和铸模孔，在裂缝沟通下形成了孔隙-裂缝型优质储层。

关键词: 热液, 成岩作用, 储层成因, 硅化碎屑岩, 莱州湾凹陷, 渤海海域

Abstract:

Silicified clastic rocks in the Laizhouwan Sag, Bohai Bay, are characterized by intergranular pores among quartz crystals filled with siliceous materials and by secondary intensive quartz overgrowth.Some areas even exhibit low-level metamorphism of blastopsammitic texture, which is rarely seen in petroliferous basins.The geological features of the siliceous clastic rocks in the sag are revealed by means of seismic and log interpretations, petrological analyses and zircon U-Pb dating.It has been confirmed for the first time that volcanic activities did occur during the deposition of the Shahejie Formation in the sag.Siliceous thermal fluid activities are verified by well-developed siliceous veins of multi-stage filling and charging, intensive overgrowth of the secondary quartz, and the blastopsammitic texture of rocks.Almost all the clay minerals in intergranular pores were thermally altered to biotites and muscovites, and growing "broom-shaped" mica minerals are observed.A large number of pyrite are developed in agglomerates or random clusters.Pyrite with different occurrence is derived from multi-phase hydrothermal solution.The hydrothermal mineral assemblage of pyrite-barite-monazite-galena-rutile-anhydrite is identified under the field-emission scanning electron microscope.With siliceous hot fluids from deep entering reservoirs, the overgrown clastic quartz and siliceous precipitates worked together to fully stuff the intergranular pores, causing deterioration in physical properties of the reservoirs.However, the silicification saved the situation by greatly enhancing the reservoir brittleness, which generated numerous fracture and micro-fracture networks during later tectonic movements.In addition, the hydrothermal fluids dissolved the feldspar minerals in the reservoirs, resulting in a large amount of dissolution pores and moldic holes in feldspar grains.Thus high-quality reservoirs of pore-fissure type are formed with well-connected fracture networks.

Key words: hydrothermal fluid, diagenesis, reservoir genesis, silicified clastic rock, Laizhouwan Sag, Bohai Sea

中图分类号:

TE122.2

田立新,王清斌,刘晓健,等. 渤海海域莱州湾凹陷沙河街组硅化碎屑岩地质特征及其储层意义[J]. 石油与天然气地质, 2020, 41(5): 1073-1082. doi: 10.11743/ogg20200517 Lixin Tian,Qingbin Wang,Xiaojian Liu,et al. Geological features and their participation in the formation of silicified clastic reservoirs in the Shahejie Formation of Laizhouwan Sag, Bohai Sea[J]. Oil & Gas Geology, 2020, 41(5): 1073-1082. doi: 10.11743/ogg20200517

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参考文献 46

1	朱东亚, 金之钧, 胡文瑄. 塔中地区热液改造型白云岩储层[J]. 石油学报, 2009, 30 (5): 698- 704.
	Zhu Dongya , Jin Zhijun , Hu Wenxuan . Hydrothermal alteration dolomite reservoir in Tazhong area[J]. Acta Petrolei Sinica, 2009, 30 (5): 698- 704.
2	李纯泉, 杨计梅. 莺-琼盆地热流体活动示踪标志及其油气运聚指向意义[J]. 天然气工业, 2003, 23 (4): 19- 22.
	Li Chunquan , Yang Jimei . Trace markers of thermal fluid flow in Ying-Qiong Basin and their directional significance of hydrocarbon migration and accumulation[J]. Natural Gas Industry, 2003, 23 (4): 19- 22.
3	郝芳, 孙永传, 李思田, 等. 活动热流体对有机质热演化和油气生成作用的强化[J]. 地球科学, 1996, 21 (1): 68- 72.
	Hao Fang , Sun Yongchuan , Li Sitian , et al. Enhancement of organic maturation and petroleum generation by hydrothermal fluids[J]. Earth Science, 1996, 21 (1): 68- 72.
4	薄冬梅, 姜林, 唐艳军, 等. 热流体活动与油气成藏[J]. 西南石油大学学报, 2007, 29 (5): 38- 41.
	Bao Dongmei , Jiang Lin , Tang Yanjun , et al. Thermal fluid activity and hydrocarbon accumulation[J]. Journal of Southwest Petroleum University, 2007, 29 (5): 38- 41.
5	金强, 翟庆龙. 裂谷盆地的火山热液活动和油气生成[J]. 地质科学, 2003, 38 (3): 413- 424.
	Jin Qiang , Zhai Qinglong . Volcanic and thermal-water activities and hydrocarbon generations in the rift basins[J]. Chinese Journal of Geology, 2003, 38 (3): 413- 424.
6	金小燕, 杜晓峰, 王清斌, 等. 渤海海域火山热流体及其对碳酸盐岩优质储层的控制作用[J]. 石油实验地质, 2018, 40 (6): 800- 807.
	Jin Xiaoyan , Du Xiaofeng , Wang Qingbin , et al. Volcanic hydrothermal fluid activity and its influence on carbonate reservoirs in Bohai Sea area[J]. Petroleum Geology & Experiment, 2018, 40 (6): 800- 807.
7	Ryuichi S , Koichi M . Mantle hydrocarbons:Abiotic or biotic?[J]. Geochimica et Cosmochimica Acta, 1994, 58 (11): 2527- 2542. doi: 10.1016/0016-7037(94)90029-9
8	谢玉洪, 伏美燕, 陈倩倩, 等. 张性盆地高温砂岩储层发育控制因素:以珠江口盆地文昌A凹陷为例[J]. 地质科技情报, 2016, 35 (1): 59- 67.
	Xie Yuhong , Fu Meiyan , Chen Qianqian , et al. Controlling factors of reservoir development under high temperature in an extensional basin:A case study from Wenchang A Sag in Pearl River Estuary Basin[J]. Geological Science and Technology Information, 2016, 35 (1): 59- 67.
9	于志超, 刘立, 孙晓明, 等. 歧口凹陷古近纪热流体活动的证据及其对储层物性的影响[J]. 吉林大学学报(自然科学版), 2012, 42 (3): 1- 13.
	Yu Zhichao , Liu Li , Sun Xiaoming , et al. Evidence of Paleogene thermal fluid activities and their impact on porosity-permeability of reservoir in Qikou Sag[J]. Journal of Jilin University(Earth Science Edition), 2012, 42 (3): 1- 13.
10	时志强, 王毅, 金鑫, 等. 塔里木盆地志留系热液碎屑岩储层:证据、矿物组合及油气地质意义[J]. 石油与天然气地质, 2014, 35 (6): 903- 913.
	Shi Zhiqiang , Wang Yi , Jin Xin , et al. The Silurian hydrothermal clastic reservoirs in Tarim Basin:Evidences, mineral assemblages and its petroleum geological implications[J]. Oil & Gas Geology, 2014, 35 (6): 903- 913.
11	唐世荣, 王东安. 硅岩研究的进展[J]. 地球科学进展, 1994, 9 (6): 71- 75.
	Tang Shirong , Wang Dongan . Advances in chert research[J]. Advence In Earth Sciences, 1994, 9 (6): 71- 75.
12	李映涛, 叶宁, 袁晓宇, 等. 塔里木盆地顺南4井中硅化热液的地质与地球化学特征[J]. 石油与天然气地质, 2015, 36 (6): 934- 944.
	Li Yingtao , Ye Ning , Yuan Xiaoyu , et al. Geological and geochemical characteristics of silicified hydrothermal fluids in Well Shunnan 4, Tarim Basin[J]. Oil & Gas Geology, 2015, 36 (6): 934- 944.
13	陈代钊, 张艳秋, 周锡强, 等. 塔里木盆地西缘上寒武统下丘里塔格群热液白云岩改造时限:来自古地磁的约束[J]. 石油与天然气地质, 2020, 41 (1): 50- 58.
	Chen Daizhao , Zhang Yanqiu , Zhou Xiqiang , et al. Timing of hydrothermal alteration on the Lower Qiulitag Group dolomites of the Upper Cambrian, western margin of Tarim Basin:Palaeomagnetic constraint[J]. Oil & Gas Geology, 2020, 41 (1): 50- 58.
14	许淑梅, 翟玉兰, 王金铎, 等. 济阳坳陷桩海地区下古生界硅化岩溶储集层空间分布模式[J]. 古地理学报, 2010, 12 (2): 220- 232.
	Xu Shumei , Zhai Yulan , Wang Jinduo , et al. Spatial distribution pattern of silicified karst reservoir of the Lower Paleozoic in Zhuanghai area of Jiyang Depression[J]. Journal of Palaeogeography, 2010, 12 (2): 220- 232.
15	于正军, 许淑梅, 王金铎, 等. 桩海地区下古生界潜山内新一类储层:硅化岩储层的发现及特征[J]. 地球科学——中国地质大学学报, 2010, 35 (1): 87- 96.
	Yu Zhengjun , Xu Shumei , Wang Jinduo , et al. A new type of reservoir of Paleozoic buried hill in Zhuanghai area:Discovery and characteristics of silicified rock[J]. Earth Science——Journal of China University of Geosciences, 2010, 35 (1): 87- 96.
16	武文慧, 黄思静, 陈洪德, 等. 鄂尔多斯盆地上古生界碎屑岩硅质胶结物形成机制及其对储集层的影响[J]. 古地理学报, 2011, 13 (2): 193- 200.
	Wu Wenhui , Huang Sijing , Chen Hongde , et al. Origin of siliceous cement in the Upper Paleozoic clastic rocks in Ordos Basin and its effects on reservoir quality[J]. Journal of Palaeogeography, 2011, 13 (2): 193- 200.
17	Morrision L S . Oil production from fractured cherts of Woodford and Arkansas novaculite formations, Oklahoma:Abstract[J]. AAPG Bulletin, 1980, 64 (7): 754- 755.
18	Comer J B.Reservoir characteristics and gas production potential of Woodford Shale in the Southern Midcontinent[EB/OL].[2007-5-23].https://scholarworks.iu.edu/dspace/handle/2022/1826.
19	Luebking G , Longman M , Carlisle W J . Unconformity-related chert/dolomite production in the Pennsylvanian Amsden Formation, Wolf Springs fields, Bull Mountains Basin of Central Montana[J]. AAPG Bulletin, 2001, 85 (1): 131- 148.
20	Sherrard S J , Heald M D . Petrology of the Huntersville Chert[J]. Southeastern Geology, 1984, 25 (1): 37- 47.
21	Donaldson A C , Skoff D . Lithostratigraphic analysis of Huntersville chert of Central Appalachians[J]. AAPG Bulletin, 1985, 69 (9): 1435.
22	Packard J J , Alaasm I , Samson I , et al. A Devonian hydrothermal chert reservoir:The 225 bcf Parkland Field, British Columbia, Canada[J]. AAPG Bulletin, 2001, 85 (1): 51- 84.
23	王玉净. 中国西南地区古生代放射虫硅岩地层——一个潜在的油气勘探目标[J]. 微体古生物学报, 2007, 24 (3): 243- 246.
	Wang Yujing . Paleozoic radiolarian cherty of southwestern China——A potential target in oil and gas expoloration[J]. Acta Micropalaeontologica Sinica, 2007, 24 (3): 243- 246.
24	Peters K E , Walters C C , Moldowan J M . Biomarkers and isotopes in petroleum exploration and earth history[M]. Cambridge: Cambridge University Press, 2005: 799- 801.
25	McBride E F . Quartz cement in sandstone:A review[J]. Earth Science Reviews, 1989, 26 (2): 69- 112.
26	Rezaee M R , Tingate P R . Origin of quartz cement in the Tirrawarra sandstone, Southern Cooper Basin, South Australia[J]. Journal of Sedimentary Research, 1997, 67 (1): 168- 177.
27	黄思静, 黄培培, 王庆东, 等. 胶结作用在深埋藏砂岩孔隙保存中的意义[J]. 岩性油气藏, 2007, 19 (3): 7- 13.
	Huang Sijing , Huang Peipei , Wang Qingdong , et al. The significance of cementation in porosity preservation in deep-buried sandstones[J]. Lithologic Reservoirs, 2007, 19 (3): 7- 13.
28	刘永立, 尤东华, 高利君, 等. 塔河油田塔深6井蓬莱坝组硅质岩成因及其地质意义[J]. 石油与天然气地质, 2020, 41 (1): 83- 91.
	Liu Yongli , You Donghua , Gao Lijun , et al. Genesis and geological significance of siliceous rock in Penglaiba Formation in Well Tashen 6, Tahe oilfield[J]. Oil & Gas Geology, 2020, 41 (1): 83- 91.
29	Molenaar N , Cyziene J , Sliaupa S , et al. Lack of inhibiting effect of oil emplacement on quartz cementation:Evidence from Cambrian reservoir sandstones, Paleozoic Baltic Basin[J]. Geological Society of America Bulletin, 2008, 120 (9): 1280- 1295.
30	Dutrow B L , Travis B J , Gable C W , et al. Coupled heat and silica transport associated with dike intrusion into sedimentary rock:Effects on isotherm location and permeability evolution[J]. Geochimica et Cosmochimica Acta, 2001, 65 (21): 3749- 3767. doi: 10.1016/S0016-7037(01)00704-9
31	罗龙, 孟万斌, 冯明石, 等. 致密砂岩中硅质胶结物的硅质来源及其对储层的影响——以川西坳陷新场构造带须家河组二段为例[J]. 天然气地球科学, 2015, 26 (3): 435- 443.
	Luo Long , Meng Wanbin , Feng Mingshi , et al. Selica sources of quartz cements and its effects on the reservoir in tight sandstones:A case study on the 2th member of the Xujiahe Formation in Xinchang Structural Belt, Western Sichuan Depression[J]. Natural Gas Geoscience, 2015, 26 (3): 435- 443.
32	解习农, 李思田, 董伟良, 等. 热流体活动示踪标志及其地质意义——以莺歌海盆地为例[J]. 地球科学——中国地质大学学报, 1999, 24 (2): 183- 188.
	Xie Xinong , Li Sitian , Dong Weiliang , et al. Trace marker of hot fluid flow and their geological implications a case study of Yinggehai Basin[J]. Earth Science——Journal of China University of Geosciences, 1999, 24 (2): 183- 188.
33	刘立, 于均民, 孙晓明, 等. 热对流成岩作用的基本特征与研究意义[J]. 地球科学进展, 2000, 15 (5): 583- 585.
	Liu Li , Yu Junmin , Sun Xiaoming , et al. Basic characteristics of thermal convection diagenesis and its research significance[J]. Advance In Earth Sciences, 2000, 15 (5): 583- 585.
34	Uysal I T , Glikson M , Golding S D , et al. The thermal history of the Bowen Basin, Queensland, Australia:Vitrinite reflectance and clay mineralogy of Late Permian coal measures[J]. Tectonophysics, 2000, 323 (7): 105- 129.
35	Mckinley J M , Worden R H , Ruffell A H . Contract diagenesis:The effect of an intrusion on reservoir quality in the Triassic Sherwood Sandstone Group, Norther Ireland[J]. Journal of Sendimentary Research, 2001, 71 (3): 484- 495. doi: 10.1306/2DC40957-0E47-11D7-8643000102C1865D
36	蔡东升, 罗毓晖, 姚长华. 渤海莱州湾走滑拉分凹陷的构造研究及其石油勘探意义[J]. 石油学报, 2001, 22 (2): 19- 25.
	Cai Dongsheng , Luo Yuhui , Yao Changhua . Strike-slip and pull-apart structure and its significance to petroleum exploration on Laizhouwan Sag, Bohai area[J]. Acta Petrolei Sinica, 2001, 22 (2): 19- 25.
37	吴时国, 余朝华, 邹东波, 等. 莱州湾地区郯庐断裂带的构造特征及其新生代演化[J]. 海洋地质与第四纪地质, 2006, 26 (6): 101- 110.
	Wu Shiguo , Yu Zhaohua , Zou Dongbo , et al. Structural features and Cenozoic evolution of the Tan-Lu zone in the Laizhouwan Bay, Bohai Sea[J]. Marine Geology & Quaternary Geology, 2006, 26 (6): 101- 110.
38	丁悌平. 硅同位素地球化学[M]. 北京: 地质出版社, 1994.
	Ding Tiping . Silicon isotope geochemistry[M]. Beijing: Geological Press, 1994.
39	胡安平, 沈安江, 梁峰, 等. 激光铀铅同位素定年技术在塔里木盆地肖尔布拉克组储层孔隙演化研究中的应用[J]. 石油与天然气地质, 2020, 41 (1): 37- 49.
	Hu Anping , Shen Anjiang , Liang Feng , et al. Application of laser in-situ U-Pb dating to reconstruct the reservoir porosity evolution in the Cambrian Xiaoerbulake Formation, Tarim Basin[J]. Oil & Gas Geology, 2020, 41 (1): 37- 49.
40	聂逢君, 姜美珠, 李思田, 等. 砂岩对热流体作用的响应及识别标记——以珠江口盆地西部为例[J]. 地学前缘, 2005, 12 (4): 581- 591.
	Nie Fengjun , Jiang Meizhu , Li Sitian , et al. The responses of sandstone to hot fluid flow and their identified markers——A case study from the western part of the Pearl River Mouth Basin[J]. Earth Science Frontiers, 2005, 12 (4): 581- 591.
41	李荣西, 段立志, 陈宝赟, 等. 鄂尔多斯盆地三叠系延长组砂岩钠长石化与热液成岩作用研究[J]. 岩石矿物学杂志, 2012, 31 (2): 173- 180.
	Li Rongxi , Duan Lizhi , Chen Baoyun , et al. Albitization and hydrothermal diagenesis of Yanchang oil sandstone reservoir, Ordos Basin[J]. Acta Petrologica Et Mineralogica, 2012, 31 (2): 173- 180.
42	王衍琦. 砂岩储层中石英次生变化的研究[J]. 石油勘探与开发, 1986, (4): 9- 41.
	Wang Yanqi . A study on secondary enlargement of quartz crystals in sandstone reservoirs[J]. Petroleum Expoloration and Development, 1986, (4): 9- 41.
43	于均民, 周晓峰, 刘立. 砂岩中石英胶结物的成因及其研究意义[J]. 世界地质, 2000, 19 (1): 20- 25.
	Yu Junmin , Zhou Xiaofeng , Liu Li . Genesis and significance of quartz cement in sandstones[J]. World Geology, 2000, 19 (1): 20- 25.
44	张哨楠. 川西致密砂岩的石英次生加大及其对储层的影响[J]. 地质论评, 1998, 44 (6): 649- 656.
	Zhang Shaonan . Quartz overgrowths and their influence on the reservoir quality of tight sandstone in the Western Sichuan Basin[J]. Geological Review, 1998, 44 (1): 649- 656.
45	方伟, 薛中州. 电子探针对储集层中长石、石英成岩演变特征的研究[J]. 石油实验地质, 1988, 10 (3): 241- 247.
	Fang Wei , Xue Zhongzhou . Electron probe analysis on the diagenetic charanteristics feldspar and quartz[J]. Petroleum Geology & Expeximent, 1988, 10 (3): 241- 247.
46	肖奕, 王汝成, 陆现彩, 等. 低温碱性溶液中微纹长石溶解性质研究[J]. 矿物学报, 2003, 23 (4): 333- 340.
	Xiao Yi , Wang Rucheng , Lu Xiancai , et al. Experimental study on the low-temperature dissolution of microperthite in alkaline solution[J]. Acta Mineralogica Sinica, 2003, 23 (4): 333- 340.

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