中油测井公司研发的大直径岩心钻进式井壁取心器目前已成功应用。截至8月8日,已在长庆油田3口井中获取合格岩心46颗。这种仪器每次下井最多可获取60颗岩心,取得的标准岩心直径为38 mm,长度为65 mm,较常规岩心直径增大了50%。据了解,能做到取出如此大规格的岩心,国内只有中油测井公司一家。中油测井公司对仪器的机械外壳各动作仓进行了封闭式结构设计,增强 The large-diameter core drilled wall bushing developed by China Petroleum Logging Company has been successfully applied. Up to August 8, 46 qualified cores have been obtained from 3 wells in Changqing Oilfield. With up to 60 cores per well, this instrument achieves a standard core diameter of 38 mm and a length of 65 mm, an increase of 50% over conventional core diameters. It is understood that, to be able to remove such a large core size, the only domestic oil logging company. CNPC logging company on the instrument of the mechanical shell of the action of the warehouse closed structure design, enhanced