%0 Journal Article
%T anexplorationonthesidetrackingtechniquethroughdirectlystartingwindowon？177.8mmcasing
%J 天然气工业
%P 90-91
%D 1997
%X ？sinceoct.1993,byusingthewhipstockfor？177.8mmcasing,madebychuandongdrillingcompany,chuanzhongoilandgasexplorationanddevelopmentcompanyhasfinishedsucces-sivelytheworkoverjobsforsixwells,i.e.wellmo—148,mo—63,mo—71,nan—5,guan—100,sui—34.
%U http://www.cngascn.com:81/ngi_wk/CN/abstract/abstract15270.shtml