大井距井间地震技术在辽河曙68井区的试验与应用
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摘要
在辽河曙68井区开展的大井距井间地震试验中,通过井间纵、横波层析成像和反射波偏移成像,得到井间砂泥岩互层展布,解释出两井之间主力储层的连通情况和流体分布情况。在地质综合研究基础上,在辽河曙光油田部署了3口开发井,均获得工业油流。本次试验,是首次在大于800m井距上尝试的井间地震技术。
Thelargewellintervalcross-wellseismictechniquewas carried out in Shu 68 area ofLiaohe Oilfield. The spatial location of sand-shale alternating beds, the connection of main reservoir and the distribution of fluids were achieved by P-wave and S-wave tomography and reflection migration imaging from cross-well data. The commercial oil flows were got fromthree wells based on integrated geological studyofcross-well seismic technique. This was the first time that the well intervalofcross-wellseismictechniquewaslager than 800 m, which improved thecross-welltechniqueapplication verymuch.
Thelargewellintervalcross-wellseismictechniquewas carried out in Shu 68 area ofLiaohe Oilfield. The spatial location of sand-shale alternating beds, the connection of main reservoir and the distribution of fluids were achieved by P-wave and S-wave tomography and reflection migration imaging from cross-well data. The commercial oil flows were got fromthree wells based on integrated geological studyofcross-well seismic technique. This was the first time that the well intervalofcross-wellseismictechniquewaslager than 800 m, which improved thecross-welltechniqueapplication verymuch.
引文
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[8]甘利灯.地震层析成像现状与展望[J].石油地球物理勘探,1993,28(3):362-373.
[2]Rutledge J T.Inter-well seismic surveying workshop[J].The Leading Edge,1989,8(6):38-40.
[3]张凤奇,庞雄奇,冷济高,等.辽河西部凹陷岩性圈闭含油性定量预测模型[J].岩性油气藏,2008,20(2):114-118.
[4]Bjorn N P.The Mckittrick cross-well seismology project-data acquisi-tion and topographic imaging[R].60th SEG Annual Meeting,1990:26-29.
[5]Pratt R G.Inverse theory applied to multi-source cross-hole tomogr-aphy,PartⅡ:Elastic wave-equation Method[J].Geophys Prosp,1990,38(3):311-330.
[6]吴律.层析基础及其在井间地震中的应用[M].北京:石油工业出版社,1997.
[7]李庆忠.岩性油气藏地震勘探若干问题讨论(Ⅰ)[J].岩性油气藏,2008,20(2):1-5.
[8]甘利灯.地震层析成像现状与展望[J].石油地球物理勘探,1993,28(3):362-373.
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