钻井: borehole; well drilling中: hit; fit exactly不期而遇: meet by chance; chance encou ...的: 4次方是 The fourth power of 2 i ...砂: sand; grit层: I storey; tier; stratum不期而遇: meet sb. accidentaly [unexpectedly; by chance]; chance on [upon]; come [run] across; fall across; happen to meet; meet without expecting to; meet without previous arrangement; meet with sb. by chance 我在图书馆与一位老朋友不期而遇。 i ran across an old friend of mine in the library不期而遇,撞上: run into不期而遇时的惊讶: being surprised to meet someone偶然撞上,不期而遇: run into (sb)我在图书馆与一位老朋友不期而遇: i ran across an old friend of mine in the library不期而来的: stray不期而至: br /22.an unexpected visit堵塞的砂层: clog ged sand layer未压实的砂层: uncompacted sand可水驱的砂层有效体积: floodable net sand volume钻井后无油气显示的砂岩: suitcase sand钻井中途油气层测试技术: fct易从富油层中吸进原油的砂层: thief sand砂层: sand bed; sand body; sand layer; sand mat; sand member; sand stratum; sand unit; sandlayer; stratum of sand常遇的: frequent境遇的: bested不约而遇: meet sb. without previous arrangement钻井: borehole; well drilling 海洋钻井 offshore drilling; 钻井泵 pump; 钻井船 drill ship; offshore drilling rig; 钻井队 drilling crew; drilling team; 钻井工 spudder; 钻井工人 driller; 钻井机 trepan; 钻井平台 rig; an off-shore oil rig; 钻井事故 drilling failure 井中水: water in hole