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.
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
关键词
三维地震勘探
小面元
采集
数据处理
资料解释
应用
3-D seismic exploration
small bin
acquisition
data processing
data interpretation
application
