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车镇凹陷北带沙三段下亚段有利储层形成机制与分布规律
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  • 英文篇名:Formation mechanism and distribution laws of favorable reservoir in lower Es_3 in the north zone of Chezhen sag
  • 作者:王琳 ; 张善文 ; 刘雅利 ; 刘鹏 ; 汤婕
  • 英文作者:Wang Lin;Zhang Shanwen;Liu Yali;Liu Peng;Tang Jie;Dongsheng Company,Shengli Oilfield Company,SINOPEC;School of Geosciences,China University of Petroleum(East China);Shengli Oilfield Company,SINOPEC;Research Institute of Petroleum Exploration and Development,Shengli Oilfield Company,SINOPEC;
  • 关键词:母岩性质 ; 有利储层 ; 深层砂砾岩 ; 沙三段 ; 车镇凹陷
  • 英文关键词:parent rock property;;favorable reservoir;;deep-buried sandy conglomerate;;the third member of Shahejie Formation;;Chezhen sag
  • 中文刊名:YQCS
  • 英文刊名:Petroleum Geology and Recovery Efficiency
  • 机构:中国石化胜利油田分公司东胜公司;中国石油大学(华东)地球科学与技术学院;中国石化胜利油田分公司;中国石化胜利油田分公司勘探开发研究院;
  • 出版日期:2016-11-25
  • 出版单位:油气地质与采收率
  • 年:2016
  • 期:v.23;No.123
  • 基金:国家科技重大专项“渤海湾盆地精细勘探关键技术”(2016ZX05006-003);; 中国石化科技攻关项目“车镇凹陷油气成藏规律及潜力评价”(P15083)
  • 语种:中文;
  • 页:YQCS201606006
  • 页数:7
  • CN:06
  • ISSN:37-1359/TE
  • 分类号:38-44
摘要
车镇凹陷北带沙三段下亚段的油气勘探面临有利储层分布认识不清等问题。为进一步深化勘探,综合岩心、铸体薄片、扫描电镜以及分析化验等资料,对车镇凹陷北带沙三段下亚段有利储层的形成机制与分布规律进行研究。结果表明,研究区东、西部的大王北—郭局子地区和车西地区的岩石组分体积分数及砾石成分均存在较大差异。其中,大王北—郭局子地区主要受埕子口凸起东段太古界花岗片麻岩母岩区控制,发育的砂砾岩体成分成熟度较高,砾石成分主要为花岗片麻岩;而车西地区主要受埕子口凸起西段下古生界碳酸盐岩母岩区控制,发育的砂砾岩体成分成熟度较低,砾石成分主要为碳酸盐岩。母岩性质的差异导致砂砾岩体的抗压实能力不同,进而对原生孔隙的保存和次生孔隙的发育均产生影响,是研究区深部有利储层形成的关键。综合沉积类型、母岩性质以及异常高压等因素,认为研究区有利储层应主要分布于地层压力系数高、受花岗片麻岩母岩区影响的大王北—郭局子地区。
        The petroleum exploration of deep-buried reservoir in lower Es3 in the north zone of Chezhen sag faces the problem that the distribution of favorable reservoirs is not clear. For further exploration,through core,casting thin sections,scanning electron microscope and other chemical examination data,the formation mechanism and distribution laws of favorable reservoir in lower Es3 in the north zone of Chezhen sag was studied. Results show that there are much differences in rock composition and gravels components in Dawangbei-Guojuzi area and Chexi area in the eastern and western of the study area respectively. Sand-conglomerate reservoirs in the Dawangbei-Guojuzi area are mainly controlled by Archeozoic granite gneiss parent rock in the area of eastern Chenzikou uplift,which are characterized by relatively high composition maturity and gravel components of granite gneiss. While sand-conglomerate reservoirs in Chexi area are mainly controlled by lowerPalaeozoic carbonate parent rock in the area of western Chenzikou uplift,which are characterized by relatively low composition maturity and gravel components of carbonate rocks. The differences of parent rock property cause the differences of compressive strength of sand-conglomerate bodies,thus they have impacts on the preservation of primary pores and the development of secondary porosity. It's the key to the formation of deep-buried favorable reservoir in the study area. Taking into account of sedimentary types,parent rock property and abnormal high pressure,it is believed that the favorable reservoir is mainly distributed in Dawangbei-Guojuzi area which has high formation pressure coefficient and is affected by granite gneiss parent rock.
引文
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