小面元采集三维地震勘探技术应用初探  

Application of Small Bin Acquisition 3-D Seismic Prospecting Technology

作　　者：宋长愿[1] 段建华[1] 费明泽[2] 温建绪[2] 

机构地区：[1]中国煤炭地质总局水文物测队,河北邯郸056001 [2]山西焦煤集团公司三维物探公司,山西太原030053

出　　处：《中国煤田地质》2007年第A02期120-122,共3页Coal Geology of China

基　　金：国家重大产业技术开发专项<西部煤炭资源高精度三维地震勘探技术>的依托工程

摘　　要：为了提高三维地震勘探解释精度,提高对小构造的勘探能力,根据三维地震勘探面元选择的基本原理,采用5m×5m的CDP小面元采集技术进行精细勘探。结合试验区的地震地质条件,在资料采集过程中,基岩裸露区采用风钻成孔,黄土覆盖区利用人工钻机成井,以进入高速层激发为原则。资料处理通过插值、扩大面元及抽线处理,提高了横向及纵向分辨率,减小了散射的影响,并通过精细的地质解释,获得准确的地质资料。该技术在山西焦煤集团公司屯兰矿的实际应用验证了其勘探效果。In order to enhance the 3-D seismic prospecting interpretation accuracy, improve exploration of minor structures, according to basic principle of 3D seismic prospecting bin selection, using a 5 × 5m CDP small bin acquisition technology to carry out finer prospecting. Based on seismic-geologic conditions, during the data acquisition process, using pneumatic drills in bedrock exposed area, hand drilling in loess covered area, the principle is to make shot in high-speed layer. The data processing has passed through interpolation, bin expanding and line sampling, improved horizontal and vertical resolutions, re.duced the impact of the scattering; through refined geological interpretation and got better geological results. The good prospecting results have demonstrated in the Tunlan coalmine of Shanxi Coking Coal Group.

关 键 词：三维地震勘探 小面元 采集 数据处理 资料解释 应用 

分 类 号：P613.4[天文地球—矿床学]