%0 Journal Article
%T Features of drill string vibration signal and multiples imaging<br>钻柱振动信号特征及多次波成像
%A 崔士波
%A 葛洪魁
%A 陆斌
%A 杨微
%A 韩来聚
%A 魏茂安
%J 地球物理学进展
%D 2010
%I 
%X Drill string is the medium connecting the formation and ground. Its vibration stimulated by the rotary bit contains a lot of useful information. It is possible to get the drill tools’ working condition and information of the formation that is drilled and will be drilled by analyzing the drill-bit vibration propagating in the drill string. Because different units of drill string have different cross section areas, the drill-bit vibration signal is reflected on the interface of changing cross section areas. By processing the drill string vibration signal with one-side deconvolved autocorrelation method, drill string image and drill string wave velocity are obtained. They match with the theoretical result very well. This provides a valid basis for the future drill string vibration logging and seismic while drilling (SWD) technology.
%K vibration signal property
%K one-side deconvolved autocorrelation
%K drill string multiples
%K interface imaging
%K drill string wave velocity<br>振动信号特征
%K 单边反褶积自相关
%K 钻柱多次波
%K 界面成像
%K 钻柱波速
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=65CE641AB2DEAAF8B2D39ECB6B6B6C80&aid=7D93635F4734FA3676AD7B5108D3625B&yid=140ECF96957D60B2&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=C4B91B15F1F73E7E&eid=2A92ABD90588B251&journal_id=1004-2903&journal_name=地球物理学进展&referenced_num=0&reference_num=19