王庄地区砂砾岩扇体及其成藏特征研究
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摘要
随着东营凹陷北部陡坡带王庄—宁海地区亿吨级稠油藏的发现,砂砾岩扇体成藏类型的隐蔽油气藏勘探已经成为现阶段油气勘探的重点目标和储量增长点之一。文中利用现代沉积学、测井学和地震勘探等手段,对王庄地区砂砾岩扇体及其油气成藏特征研究后认为:王庄地区在下第三纪以形成沙三、沙四段的较高水动力能砂砾岩扇体(冲击扇、扇三角洲、近岸水下扇)沉积储集体为主,其中扇三角洲砂砾岩体是本区最主要的油气储集体;油藏类型以岩性-地层型圈闭为主,油气的聚集和分布均受沉积相的控制,油藏具有复杂多变的特点。
With the discovery of one hundred million tons heavy oil reservoirs in Wangzhuang-Ninghai Area of north steep slope of Dongying Depression, the glutenite fan subtle oil reservoir has become one of the important exploration targets and the increasing points of oil and gas reserves.Through the research on the glutenite fan body and its hydrocarbon accumulation characteristics in Wangzhuang Area and the use of modern sedimentology, well logging and seismic exploration, it is considered that Es3+4 sandstone and glutenite sedimentary fan bodies with high hydropower energy such as alluvial fan, fan delta, inshore subaqueous fan are the main sedimentary reservoirs in Wangzhuang Area during Eogene, in which the fan delta glutenite body is the most major reservoir in this area.The main reservoir type is lithological-stratigraphic reservoir.The hydrocarbon accumulation and distribution are controlled by the sedimentary facies.The hydrocarbon reservoir are very complicated and proteus.
With the discovery of one hundred million tons heavy oil reservoirs in Wangzhuang-Ninghai Area of north steep slope of Dongying Depression, the glutenite fan subtle oil reservoir has become one of the important exploration targets and the increasing points of oil and gas reserves.Through the research on the glutenite fan body and its hydrocarbon accumulation characteristics in Wangzhuang Area and the use of modern sedimentology, well logging and seismic exploration, it is considered that Es3+4 sandstone and glutenite sedimentary fan bodies with high hydropower energy such as alluvial fan, fan delta, inshore subaqueous fan are the main sedimentary reservoirs in Wangzhuang Area during Eogene, in which the fan delta glutenite body is the most major reservoir in this area.The main reservoir type is lithological-stratigraphic reservoir.The hydrocarbon accumulation and distribution are controlled by the sedimentary facies.The hydrocarbon reservoir are very complicated and proteus.
引文
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[7]付瑾平,刘玉浩,王宝言.箕状凹陷陡坡带砂砾岩扇体空间展布及成藏规律[J].复式油气田,1998(3):8-11.
[8]乔俊.胜坨地区砂砾岩扇体成藏机制与勘探技术分析[J].断块油气田,2005,12(4):17-20.
[2]张春生,刘忠保,施冬,等.扇三角洲形成过程及演变规律[J].沉积学报,2000,18(4):36-41.
[3]贾爱林,陈亮,穆龙新,等.扇三角洲储层露头精细研究方法[J].石油学报,2000,21(4):105-108.
[4]孔凡仙.东营凹陷北部陡坡带砂砾岩体的勘探[J].石油地球物理勘探,2000,35(5):127-134.
[5]张萌,田景春.“近岸水下扇”的命名、特征及其储集性[J].岩相古地理,1999,19(4):43-53.
[6]刘家铎.近岸水下扇沉积微相及储层的控制因素研究:以沾化凹陷罗家鼻状构造沙四段为例[J].成都理工学院学报,1999,26(4):47-51.
[7]付瑾平,刘玉浩,王宝言.箕状凹陷陡坡带砂砾岩扇体空间展布及成藏规律[J].复式油气田,1998(3):8-11.
[8]乔俊.胜坨地区砂砾岩扇体成藏机制与勘探技术分析[J].断块油气田,2005,12(4):17-20.
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