Cenozoic fault characteristics and petroleum geological significance in Banqiao slope area of Qikou Depression
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摘要: 歧口凹陷发育多类型斜坡构造，为地层岩性油气藏主要富集区。板桥斜坡为歧口凹陷西缘受边界断裂控制的旋转掀斜型斜坡，斜坡内断裂特征复杂。在钻井及高分辨地震三维解释基础上，对板桥斜坡区内断裂特征进行分析，并探讨其油气地质意义。研究表明，板桥斜坡内部发育3组不同类型的断裂系，其组合类型、变形特征及成因机制具有显著差异。西侧的大张坨平行断裂系受控于差异伸展作用，缓岸带一侧发育一组平行排列的张性断裂，断裂走向与斜坡倾向垂直，形成断鼻背景上的单一斜坡构造；东侧的长芦羽状断裂系及高沙岭帚状断裂系形成受伸展走滑作用共同控制，断裂走向与地层倾向平行，形成顺向复杂断裂斜坡构造。斜坡区演化经历了初始裂陷期-旋转掀斜期-坳陷沉降期3个阶段，控制了斜坡区古地貌特征、沉积体系类型及砂体展布。断裂活动特征的差异则控制了油气运聚特征的不同，早衰型断裂易于油气短距离运移在中深部富集成藏，继承型断裂两侧具多目的层立体含油的特征。Abstract: Qikou Depression has developed many types of slope structures, which are the main enrichment areas of stratigraphic and lithologic reservoirs.Banqiao slope is a rotating tilting slope controlled by boundary faults in the western margin of Qikou Depression, and its fracture characteristics are complex.Based on the three-dimensional interpretation of drilling and high resolution seismic data, this paper analyses the fracture characteristics in Banqiao slope area and discusses the geological significance of its petroleum.The results show that there are three different types of fault systems in Banqiao slope, and their combination types, deformation characteristics and genetic mechanism are significantly different.The Dazhangtuo parallel fault system on the western side is controlled by differential extension.A group of parallel tensional faults are developed on one side of the gentle bank zone.The strike of the faults is perpendicular to the inclination of the slope, forming a single slope structure on the background of the fault nose.The Changlu pinnate fault system on the eastern side and the Kaolin broom fault system are superimposed by extensional strike-slip action.Controlled, the strike of faults is parallel to the stratum tendency, forming a complex faulted slope structure along the direction.The evolution of the slope area has gone through three stages: initial rifting stage, rotary tilting stage and depression subsidence stage, which control the palaeogeomorphological characteristics, sedimentary system types and sand body distribution in the slope area.The difference of fault activity characteristics controls the difference of oil and gas migration and accumulation characteristics.Early-aging faults are easy to accumulate oil and gas in the middle and deep depths, and the inherited faults have the characteristics of multi-objective layers and three-dimensional oil-bearing on both sides.
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图 2 板桥斜坡区断裂系平面展布及剖面特征图
Nm.明化镇组; Ng.馆陶组; Ed.东营组; Es1~3.沙河街组一至三亚段
Figure 2. Fault plane distribution and profile of characteristics in Banqiao slope area
图 4 板桥斜坡区主干断裂与次级断裂活动性关系
Figure 4. Activity relationship between the main fault and the secondary fault in Banqiao slope area
图 5 板桥斜坡区构造演化剖面图
Mz.中生界地层; Es33.沙河街组三亚段3砂组; Es32.沙河街组三亚段2砂组; Es31.沙河街组三亚段1砂组; Es1x.沙河街组一段下亚段; Es1s.沙河街组一段上亚段
Figure 5. Profiles of the tectonic evolution in Banqiao slope area
图 6 板桥斜坡区断裂特征与圈闭样式图
Figure 6. Characteristics of fracture and trap style in Banqiao slope area
图 7 板桥斜坡区不同类型断裂控藏模式图
a.继承型断裂油气运聚模式; b.早衰型断裂油气运聚模式; c.后期型断裂油气运聚模式
Figure 7. Different types of fracture control mode in Banqiao slope area
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[1] 王华, 陈思, 巩天浩, 等.牵引流化重力流沉积过程与堆积机制:以渤海湾盆地歧口凹陷为例[J].地质科技通报, 2020, 39(1):95-104. http://dzkjqb.cug.edu.cn/CN/abstract/abstract9930.shtml [2] Zhao X Z, Pu X G, Zhou L H, et al.Geologic characteristics of deep water deposits and exploration discoveries in slope zones of fault lake basin:A case study of Paleogene Shahejie Formation in Banqiao-Qibei slope, Qikou sag, Bohai Bay Basin[J].Petroleum Exploration & Development, 2017, 44(2):171-182. http://www.sciencedirect.com/science/article/pii/S1876380417300228 [3] 赵贤正, 周立宏, 蒲秀刚, 等.断陷湖盆斜坡区油气富集理论与勘探实践:以黄骅坳陷古近系为例[J].中国石油勘探, 2017, 22(2):13-24. http://d.wanfangdata.com.cn/Periodical/zgsykt201702002 [4] 赵贤正, 周立宏, 肖敦清, 等.歧口凹陷斜坡区油气成藏与勘探实践[J].石油学报, 2016, 37(增刊2):1-9. http://www.cnki.com.cn/Article/CJFDTOTAL-SYXB2016S2001.htm [5] 吴雪松, 赵仕民, 肖敦清, 等.埕北断阶带油气成藏条件与模式研究[J].天然气地球科学, 2009, 20(3):362-371. http://www.cqvip.com/QK/97226X/20093/30635818.html [6] Zhou L H, Han G M, Dong Y Q, et al.Fault-sand combination modes and hydrocarbon accumulation in Binhai fault nose of Qikou Sag, Bohai Bay Basin, East China[J].Petroleum Exploration and Development, 2019, 46(5):919-934. doi: 10.1016/S1876-3804(19)60249-1 [7] 周立宏, 李洪香, 王振升.歧口凹陷歧北斜坡地层岩性油气藏精细勘探与发现[J].特种油气藏, 2011, 18(6):31-35. http://www.cqvip.com/QK/98573X/201106/40542138.html [8] 王华, 周立宏, 韩国猛, 等.陆相湖盆大型重力流发育的成因机制及其优质储层特征研究:以歧口凹陷沙河街组一段为例[J].地球科学, 2018, 43(10):3423-3444. http://www.cnki.com.cn/Article/CJFDTotal-DQKX201810009.htm [9] 王振升, 陈长伟, 韩国猛, 等.旋转掀斜斜坡区构造-沉积演化特征及油气地质意义:以渤海湾盆地歧口凹陷板桥斜坡为例[J].天然气地球科学, 2017, 28(11):1650-1656. http://www.cnki.com.cn/Article/CJFDTotal-TDKX201711005.htm [10] 周立宏, 蒲秀刚, 肖敦清, 等.箕状断陷斜坡区沉积储层与油气成藏:以渤海湾盆地为例[M].北京:石油工业出版社, 2013. [11] 王冠民, 熊周海, 张健, 等.渤海湾盆地渤中凹陷油藏断裂特征及对成藏的控制作用[J].石油与天然气地质, 2017, 38(1):62-70. http://d.wanfangdata.com.cn/Periodical/syytrqdz201701008 [12] 孙永河, 漆家福, 吕延防, 等.渤中坳陷断裂构造特征及其对油气的控制[J].石油学报, 2008, 29(5):669-675. http://www.cqvip.com/Main/Detail.aspx?id=28233455 [13] 方旭庆, 蒋有录, 石砥石.济阳坳陷沾化地区断裂特征及其与成藏要素和油气分布的关系[J].油气地质与采收率, 2012, 19(2):1-4, 111. http://www.cqvip.com/QK/90849A/20122/41468562.html [14] 李明刚, 漆家福, 童亨茂, 等.辽河西部凹陷新生代断裂构造特征与油气成藏[J].石油勘探与开发, 2010, 37(3):281-288. http://d.wanfangdata.com.cn/Periodical/syktykf201003004 [15] 雷宝华.生长断层活动强度定量研究的主要方法评述[J].地球科学进展, 2012, 27(9):947-956. http://www.cnki.com.cn/Article/CJFDTotal-DXJZ201209005.htm [16] 陈刚, 戴俊生, 叶兴树, 等.生长指数与断层落差的对比研究[J].西南石油大学学报, 2007(3):20-23, 16. http://www.cnki.com.cn/Article/CJFDTotal-XNSY200703005.htm [17] 侯贵廷, 钱祥麟, 宋新民.渤海湾盆地形成机制研究[J].北京大学学报:自然科学版, 1998, 34(4):3-5. http://www.cnki.com.cn/Article/CJFDTotal-BJDZ804.013.htm [18] 侯贵廷, 钱祥麟, 蔡东升.渤海湾盆地中、新生代构造演化研究[J].北京大学学报:自然科学版, 2001, 37(6):845-851. http://www.cqvip.com/QK/94075X/20016/5695241.html [19] 李明刚, 漆家福, 杨桥, 等.渤海湾盆地黄骅坳陷新生代结构特征及构造动力学模式[J].地球学报, 2009, 30(2):201-209. http://d.wanfangdata.com.cn/Periodical/dqxb200902007 [20] 董敏, 漆家福, 杨桥, 等.渤海湾盆地黄骅坳陷新生代伸展量的时空分布特征[J].古地理学报, 2013, 15(3):327-338. http://d.wanfangdata.com.cn/Periodical/gdlxb201303004 [21] 漆家福, 陆克政, 张一伟, 等.渤海湾盆地区新生代构造与油气的关系[J].石油大学学报:自然科学版, 1995, 19(增刊1):7-13. http://qikan.cqvip.com/Qikan/Article/Detail?id=4001329986 [22] 漆家福.渤海湾新生代盆地的两种构造系统及其成因解释[J].中国地质, 2004, 31(1):15-22. http://www.cqvip.com/Main/Detail.aspx?id=9209693 [23] 索艳慧, 李三忠, 许立青, 等.渤海湾盆地大歧口凹陷新生代构造演化与盆地原型[J].地质科学, 2015, 50(2):473-488. http://d.wanfangdata.com.cn/Periodical/dzkx201502008 [24] 李三忠, 索艳慧, 郭玲莉, 等.渤海湾盆地大歧口凹陷变换构造与板内变形差异[J].海洋地质与第四纪地质, 2017, 37(4):98-109. http://www.cqvip.com/QK/96122X/201704/673266260.html [25] 李三忠, 索艳慧, 周立宏, 等.华北克拉通内部的拉分盆地:渤海湾盆地黄骅坳陷结构构造与演化[J].吉林大学学报:地球科学版, 2011, 41(5):1362-1379. http://www.cqvip.com/QK/91256B/201105/39822053.html [26] 胡志伟, 徐长贵, 杨波, 等.渤海海域断裂对油气优势运移通道的影响及其控藏类型[J].地质科技情报, 2017, 36(3):38-45. http://www.cqvip.com/QK/93477A/20173/672212444.html [27] 赵贤正, 蒲秀刚, 周立宏, 等.渤海湾盆地歧口凹陷古近系沉积体系重建与储集层评价[J].成都理工大学学报:自然科学版, 2017, 44(5):565-578. http://www.cnki.com.cn/Article/CJFDTotal-CDLG201705007.htm [28] 陈长伟, 韩国猛, 马建英, 等.歧口凹陷板桥斜坡滨Ⅰ油组有利储集相带分析[J].特种油气藏, 2017, 24(1):49-52. http://www.cqvip.com/QK/98573X/20171/671470324.html [29] 余一欣, 周心怀, 徐长贵, 等.渤海海域断裂相互作用及其油气地质意义[J].石油与天然气地质, 2018, 39(1):11-19. http://www.cqvip.com/QK/95357X/20181/674744295.html [30] 王志伟.新北油田右旋走滑应力场内断层封堵性及其对成藏的控制作用[J].地质科技情报, 2019, 38(4):145-152. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFD&filename=DZKQ201904015 [31] 于春勇, 武建良, 陈佩磊, 等.饶阳凹陷武强地区新生代断裂构造特征及其控藏作用[J].地质科技情报, 2019, 38(2):81-88. http://www.cqvip.com/QK/93477A/201902/68907581504849574850484948.html [32] 于学敏, 何咏梅, 姜文亚, 等.黄骅坳陷歧口凹陷古近系烃源岩主要生烃特点[J].天然气地球科学, 2011, 22(6):1001-1008. http://www.cnki.com.cn/Article/CJFDTotal-TDKX201106011.htm [33] 王振升, 滑双君, 于学敏, 等.歧口凹陷沙河街组烃源岩分级评价及优质烃源岩分布[J].天然气地球科学, 2014, 25(12):1896-1902. http://www.cqvip.com/QK/97226X/201412/663710358.html [34] 张杰, 邱楠生, 王昕, 等.黄骅坳陷歧口凹陷热史和油气成藏史[J].石油与天然气地质, 2005, 26(4):505-511. http://www.cqvip.com/Main/Detail.aspx?id=20079321 -
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