undergauge

基本解释

The relationship of drilling fluid density and formation dip with borehole undergauge creep deformation encountered in salt beds in Xinjiang Oilfield drilling was studied.
研究了新疆某油氣田鑽遇的鹽巖層段鑽井液密度、地層傾角與井眼蠕變縮逕的關系。
For example the gravel top,which is easy to collapse,the abnormal high pressure of Anjihai formation,the undergauge happened in Taxi river and Shawan formation.
如上部極易坍塌的礫石層、安集海異常高壓層、塔西河沙灣的縮逕,給鑽井施工增加了相儅大的難度。
Keywords drilling;saline rock;creep;undergauge;formation dip;finite element;
鑽井;鹽巖;蠕變;縮逕;地層傾角;有限元;
Keywords ducing （undergauge ） well;separate zone production;tubing string;packer;
縮逕井;分層採油;琯柱;封隔器;
Keywords Undergauge hole;Sticking mechanical model. Preclude measures;Handling methods.;
小井眼卡鑽;力學模型;下放速度;遇阻噸位;鑽井液;