也门71区山地可控震源激发技术  

Vibrator exploding technology for mountain area in block 71 Yemen

作　　者：王永平[1] 于冬梅[1] 朱丽芹[1] 

机构地区：[1]中原石油勘探局地球物理勘探公司,河南濮阳457001

出　　处：《内蒙古石油化工》2012年第12期111-116,共6页Inner Mongolia Petrochemical Industry

摘　　要：也门71区块地表异常复杂,尤其是山地部分表层破碎底层坚硬,激发条件差,导致钻机打井困难,炸药能量散失严重,各种次生干扰的衍生导致资料信噪比低,成像困难。特殊的地表条件给技术设计和野外施工带来极大不便,而可控震源在山地的应用能够较好的弥补炸药震源的不足。为此,通过分析71区块山地的地表地质条件,借鉴相似工区的施工经验,对71区块山地的可控震源技术进行详细的研究。通过优选可控震源的扫描频率、扫描长度、出力、扫描次数和震源台数等参数,总结出一套适合也门71区块山地的可控震源激发技术,应用于野外生产并取得良好效果。71区块山地资料品质大幅度提高,同时该技术的研究成功也为也门乃至中东北非类似地区的地震勘探提供了有益的参考。The surface of Yemen Block 71 is very complex,especially in mountain part,the surface is broken and understratum is too hard.It is very difficult to drill the hole because of the poor exploding condition.Serious loss of explosive energy and serial secondary interference cause low S/N radio and difficulty of data imaging.Special surface conditions cause great inconvenience to the technical design and field operation,and the application of vibrator in the mountains is able to compensate for the lack of explosive source.Then,we make resarch of the vibrator technology by analyzing the mountain surface geological conditions and referring experience in similar area.By optimizing sweep frequency,sweep length,power out,sweep time&number and other parameters of vibrator,we got the proper vibrator exploding technology and achieved good application results.This technology enhance seismic data quality and provide beneficial reference for seismic exploration in Yemen and Middle East & North Africa.

关 键 词：可控震源 激发技术 扫描 出力 

分 类 号：P631.4[天文地球—地质矿产勘探]