变速成图技术在K1地区的应用  

APPLICATION OF STRUCTURAL DIAGRAM IN K1 AREA

作　　者：杜伟[1] 张悦[2] 彭丽娜 张泽天 

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南郑州473132 [2]大庆油田采油二厂,黑龙江大庆163414 [3]河南油田采油一厂,河南南阳411300 [4]河南油田采油二厂,河南濮阳457163

出　　处：《新疆石油天然气》2017年第4期19-21,27,共4页Xinjiang Oil & Gas

摘　　要：K1地区广泛发育火山岩,受火山岩高速地层影响,火山岩帽下伏地震同相轴存在上拉现象,形成局部构造假象;为搞清下伏地层真实构造形态,通过模型正演验证了高速火山岩造成的同相轴上拉现象;综合钻井、速度谱速度信息,利用井点层速度校正速度谱层速度,并将校正后的层速度转换为平均速度场进而时深转换。实际应用表明,该方法提高了变速成图的精度,消除了高速火山岩体引起的构造假象。K1 aera developed a lot of volcanic rocks, affected by the high speed volcanic rocks layer, under thecap of volcanic rocks,seismic event existed bended upwards, which formed local pseudo structure. In order tofind out the real structure of the underlying strata, the phase shaft phenomenon caused by the volcanic rocks wasverified by forward modeing. Integrated drilling, seismic velocity spectrum information, using the well point inter-val velocity correction velocity spectrum interval velocity, and converts the corrected interval velocity to averagevelocity field. Practical application shows this method improves the precision of structural map, and eliminatesthe pseudo structure caused by the high speed volcanic rocks.

关 键 词：变速成图 速度谱 层速度 火山岩 

分 类 号：P631[天文地球—地质矿产勘探]