%0 Journal Article
%T DAMAGE OF OIL WELL CEMENT LOOP UNDER THE IMPACT LOAD<br>油水井水泥环在冲击载荷作用下的损伤分析
%A ZHU Jun
%A WANG Suling
%A <br>朱君
%A 王素玲
%J 力学与实践
%D 2006
%I 
%X The impact reshaping is a technology in common use for repairing damaged casing. The mechanical model of cement loop is built based on the impact reshaping technology and wave technology. The balanced site-shape of the drill pipe and the impacting force caused by the drill pipe are obtained by subsections based on the mechanical model of a cantilever beam. According to the stress state and Mazars damage mechanical model of brittleness materials, a damage mechanical model of cement loop is built and the damage state is calculated. The calculated results are compared against testing results and the error is around 2.7%.
%K impact reshaping
%K cement loop
%K drill pipe
%K bucking
%K damage<br>冲击整形
%K 水泥环
%K 钻杆
%K 屈曲
%K 损伤
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=DA3556D94393A7ED&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=C5154311167311FE&eid=D3E34374A0D77D7F&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=6