油气地质

东营凹陷陡坡带盐 18—永 921 地区砂砾岩沉积与储层特征

  • 葛家旺 ,
  • 秦成岗 ,
  • 朱筱敏 ,
  • 陈淑慧 ,
  • 刘英辉 ,
  • 张昕
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  • 1.中国石油大学(北京) 油气资源与探测国家重点实验室,北京,102249; 2.中国石油大学(北京) 地球科学学院,北京 102249; 3.中国石化胜利油田分公司 东辛采油厂,山东 东营 207015; 4.中国石油勘探开发研究院 廊坊分院,河北 廊坊 065007
鲜本忠(1973-),男,博士,副教授,主要从事沉积学和层序地层学方面的研究工作。 地址:(102249)北京市昌平区中国石油大学地球科学学院。 电话:(010)89731178。 E-mail:xianbzh@163.com。

网络出版日期: 2014-08-15

基金资助

国家自然科学基金项目“济阳坳陷断陷湖盆陡坡带砂砾质重力流沉积机制与沉积模式研究”(编号:41172104)和“水下碎屑流沉积 特征、模式及石油地质意义———以渤海湾盆地东营凹陷为例”(编号:41372117)、国家油气重大专项“基于三维空间的沉积厚度恢 复技术研究”(编号:2011ZX05014-001)和“渤海湾盆地重点地区深水沉积层序地层学研究”(编号:2011ZX05009-002)联合资助

Sedimentary and reservoir characteristics of glutenite in Yan 18-Yong 921 area, steep slope of Dongying Sag

  • GE Jiawang ,
  • QIN Chenggang ,
  • ZHU Xiaomin ,
  • CHEN Shuhui ,
  • L IU Yinghui ,
  • ZHANG Xin
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  • 1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China; 2. College of Geosciences, China University of Petroleum, Beijing 102249, China; 3. Dongxin Oil Production Plant, Shengli Oilfield Company, Sinopec, Dongying 207015, Shandong, China; 4. PetroChina Research Institute of Petroleum Exploration and Develoment-Langfang, Langfang 065007, Hebei, China

Online published: 2014-08-15

摘要

断陷盆地陡坡带断裂活动强烈,常表现为深水重力流砂砾质沉积和烃源岩同层的特征,储层物性评价成为该区域油气勘探的关键。 针对东营凹陷盐 18—永 921 地区沙三下亚段和沙四上亚段,通过地层细分、沉积相厘定和储层特征分析,探索了优质储层发育规律。 地质-地震综合的沉积相研究表明,该区沉积充填过程和相类型受控于边界断裂的演化,自下而上经历了扇三角洲沉积、近岸水下扇—洪水型湖底扇沉积和近岸水下扇—滑塌型湖底扇沉积 3 个演化阶段。 砂砾岩储层储集空间以孔隙为主,裂缝不发育,孔隙中原生孔隙明显占优势。 当埋深小于 2 600 m 时,沉积作用是该区砂砾岩储层物性的主控因素;当埋深大于 2 600 m 时,储层进入晚成岩阶段,溶蚀作用增强,除沉积作用外,溶蚀作用开始对储层物性产生重要影响。 根据储层物性主控因素分析结果,提出沙三下亚段和沙四上亚段Ⅰ~Ⅳ砂组中近岸水下扇中扇的辫状水道、沙四上亚段Ⅴ,Ⅵ砂组中洪水湖底扇和Ⅶ,Ⅷ砂组中扇三角洲前缘控制了各时期优质储层的分布。

本文引用格式

葛家旺 , 秦成岗 , 朱筱敏 , 陈淑慧 , 刘英辉 , 张昕 . 东营凹陷陡坡带盐 18—永 921 地区砂砾岩沉积与储层特征[J]. 岩性油气藏, 2014 , 26(4) : 28 -35 . DOI: 10.3969/j.issn.1673-8926.2014.04.005

Abstract

Steep slope of rift basins with strong faults activities is characterized by deep water gravity flow sandstone and conglomerate and high-quality source rocks in the same layer. As a result, reservoir properties became the key factor for hydrocarbon exploration in this area. In this paper, strata division, sedimentary facies and reservoir characteristics were studied to well understand the forming rules of high-quality reservoir of the lower third member of Shahejie Formation(E2 s3x)and the upper fourth member of Shahejie Formation (E2 s4s )in steep slope in Yan 18-Yong 921 area, Dongying Sag. Geological-seismic integrated sedimentary facies study shows that basin filling processes and sedimentary facies composition were mainly controlled by the evolution of boundary faults, and sedimentary system evolution from bottom to top included three stages as follows: fan delta with shallow water, deep water near shore subaqueous fan to flooding lacustrine basin fan and deep water near shore subaqueous fan to slump lacustrine basin fan. The reservoir spaces mainly come from pore, with less fractures. Sedimentation is the key controlling factor of reservoir properties when the buried depth is less than 2 600 m. However, dissolution increased when the buried depth is more than 2 600 m and the reservoir entered into the late diagenetic stage. According to the analyses of reservoir controlling factors, we proposed that high quality reservoirs come from mid-fan of near shore subaqueous fan in E2 s3x and sand group Ⅰ-Ⅳ of E2 s4s ,flooding lacustrine basin fan in sand group Ⅴ and Ⅵ of E2 s4s and fan delta front in sand group Ⅶ and Ⅷ of E2 s4s .

参考文献

[1] 李丕龙.陆相断陷盆地油气地质与勘探———陆相断陷盆地沉积体系与油气分布[M].北京:石油工业出版社,2003:17-18,73-76.
[2] 朱筱敏,张守鹏,韩雪芳,等.济阳坳陷陡坡带沙河街组砂砾岩体储层质量差异性研究[J].沉积学报,2013,31(6):1094-1104.
[3] 鲜本忠,王永诗,周廷全,等.断陷湖盆陡坡带砂砾岩体分布规律及控制因素———以渤海湾盆地济阳坳陷车镇凹陷为例[J].石油勘探与开发,2007,34(4):429-436.
[4] 鲜本忠,万锦峰,姜在兴,等.断陷湖盆洼陷带重力流沉积特征与模式:以南堡凹陷东部东营组为例[J].地学前缘,2012,19(1):121-135.
[5] 崔周旗,吴健平,李莉,等.束鹿凹陷斜坡带沙三段扇三角洲特征及含油性[J].西北大学学报:自然科学版,2003,33(3):320-324.
[6] 朱庆忠,李春华,杨合义.廊固凹陷大兴砾岩体成因与油气成藏[J].石油勘探与开发,2003,30(4):34-36.
[7] 杜振川,魏魁生.北部湾盆地涠洲组复合扇体特征及油气勘探意义[J].石油与天然气地质,2002,23(3):274-278.
[8] 胡受权,郭文平,刘树根,等.断陷湖盆陡坡带陆相层序地层学模式研究———以泌阳断陷双河—赵凹地区下第三系核三上段为例[J].长春科技大学学报,1999,29(2):151-156.
[9] 鲜本忠,安思奇,施文华.水下碎屑流沉积:深水沉积研究热点与进展[J].地质论评,2014,60(1):39-51.
[10] 孙怡,鲜本忠,林会喜.断陷湖盆陡坡带砂砾岩体沉积期次的划分技术[J].石油地球物理勘探,2007,42(4):468-473.
[11] 鲜本忠,王永诗.基于小波变换基准面恢复的砂砾岩期次划分与对比[J].中国石油大学学报:自然科学版,2008,32(6):1-5.
[12] 王芝尧,卢异,杨子玉,等.古近系构造样式对油气成藏的影响———以歧口凹陷为例[J].天然气地球科学,2013,24(1):85-92.
[13] 王永诗,鲜本忠.车镇凹陷北部陡坡带断裂结构及其对沉积和成藏的控制[J].油气地质与采收率,2006,13(6):5-8.
[14] 杨剑萍,石德文.东营凹陷北部永921 地区渐新世沙三段和沙四段扇三角洲沉积[J].石油大学学报:自然科学版,2000,24(1):10-12.
[15] 王蛟,姜在兴,操应长,等.山东东营凹陷永921 地区沙四上亚段扇三角洲沉积与油气[J].吉林大学学报:地球科学版, 2005,35(6):47-53.
[16] 王升兰,刘晖.中国东部断陷湖盆陡坡带砂砾岩扇体与油气勘探[J].内蒙古石油化工,2013,38(6):135-138.
[17] 袁静,杨学君,路智勇,等.东营凹陷盐22 块沙四上亚段砂砾岩粒度概率累积曲线特征[J].沉积学报,2011,29(5):815-824.
[18] 周廷全,鲜本忠,林会喜,等.车镇凹陷陡坡带古近系湖底扇沉积规律及储层特征[J].油气地质与采收率,2007,14(2):23-27.
[19] Li Xiangbo,Chen Qilin, Liu Huaqing,et al. Features of sandy debris flows of the yanchang formation in the Ordos Basin and its oil and gas exploration significance[J]. Acta Geologica Sinica(EnglishEdition),2011,85(5):1187-1202.
[20] Johansson M,Braakenburg N E,Stow D A V,et al. Deep-water massive sands-facies, processes and channel geometry in the Numidian Flysch,Sicily[J]. Sedimentary Geology,1998,115:233-265.
[21] 鲜本忠,万锦峰,董艳蕾,等.湖相深水块状砂岩特征、成因及发育模式———以南堡凹陷东营组为例[J].岩石学报,2013,29(9):3287-3299.
[22] Martins-Neto M A. Lacustrine fan-deltaic sedimentation in a Proterozoic rift basin[J]. Sedimentary Geology,1996,106:65-96.
[23] Dickie J R,Hein F J. Conglomeratic fan deltas and submarine fans of the Jurassic Laberge Group,Whitehorse Trough,Yukon Territory,Canada[J]. Sedimentary Geology,1995,95:263-292.
[24] Dou L,Chang L. Fault linkage patterns and their control on the formation of the petroleum systems of the Erlian Basin,Eastern China[J]. Marine and Petroleum Geology,2003,20:1213-1234.
[25] 张立强,罗晓容,穆洋洋,等.东营凹陷古近系沙四上亚段近岸水下扇砂体碳酸盐胶结物的分布特征[J].中国石油大学学报:自然科学版,2013,37(3):1-7.
[26] 鲜本忠,吴采西,佘源琦.山东东营车镇凹陷古近系流体异常高压及其对深层碎屑岩储集层的影响[J].古地理学报,2011,6(3):309-316.
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