high deviation angle

基本解釋

Formations were unconsolidated and hole deviation angle was high, so it was difficult to recover cores from this well.
由于地層疏松，該井井斜角較大等造成取心難度大。
The relation ship among borehole stability, deviation angle, and orientation angle in the high structural belt is investigated. The true triaxial test is made in lab on sandstone.
為了研究山前高構(gòu)造帶地應(yīng)力區(qū)的井眼穩(wěn)定性隨井斜角、方位角的變化規(guī)律，在室內(nèi)自制巖樣進(jìn)行真三軸試驗。
Due to complicated geology and high dip angle, hole deviation is easy to take place in Qingxi area of Yu-men oilfield, it is the bottle-neck for improving penetration rate for a long period.
玉門油田青西區(qū)塊地質(zhì)情況復(fù)雜、地層傾角大、容易發(fā)生井斜，長期以來一直是提高鉆井速度的一個瓶頸。