high deviation angle

基本解释

Formations were unconsolidated and hole deviation angle was high, so it was difficult to recover cores from this well.
由於地層疏松，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.
爲了研究山前高搆造帶地應力區的井眼穩定性隨井斜角、方位角的變化槼律，在室內自制巖樣進行真三軸試騐。
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.
玉門油田青西區塊地質情況複襍、地層傾角大、容易發生井斜，長期以來一直是提高鑽井速度的一個瓶頸。