undergauge

基本解釋

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鉆遇的鹽巖層段鉆井液密度、地層傾角與井眼蠕變縮徑的關(guān)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、塔西河沙灣的縮徑,給鉆井施工增加了相當(dāng)大的難度。
Keywords drilling;saline rock;creep;undergauge;formation dip;finite element;
鉆井;鹽巖;蠕變;縮徑;地層傾角;有限元;
Keywords ducing （undergauge ） well;separate zone production;tubing string;packer;
縮徑井;分層采油;管柱;封隔器;
Keywords Undergauge hole;Sticking mechanical model. Preclude measures;Handling methods.;
小井眼卡鉆;力學(xué)模型;下放速度;遇阻噸位;鉆井液;