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一、人工導斜適用范围鑽孔人工導斜是苏联先進經驗之一,在我國若干地方經過實驗使用,其效果良好。這種方法適用於三種情況。 1.孔內發生嚴重事故:處理須要花費相當長的時間,或無法處理,當時鑽孔又達相當深度,但尚未達到地質要求,在這種情況下,可考慮採用人工導斜,在事故鑽具上頭以導斜楔子躲開事故的鑽具,開始新孔鑽進以求完成任務。 2.鑽孔彎曲超過允許誤差:鑽探在施工中由於地質構造和操作技術等因素的影響,所鑽出的鑽孔角度将要和設計有所出入,但是如果超出設計允許誤差,就不能滿足地質設計要求,這時也可以考慮採用人工導斜法補救之。
First, the artificial guide oblique scope of application Drilling artificial guide oblique is one of the advanced Soviet experience, in some places in China through experimental use, the effect is good. This method is suitable for three situations. 1. Serious Accidents in Holes: Processing takes a long time or can not be done. At that time, drilling was completed at a considerable depth but the geological requirements were not met. In such cases, manual guidance can be considered for drilling With the top of the guide wedge to escape the accident drill, start a new hole drilling in order to complete the task. 2. Drill bending more than allowable error: Drilling due to geological structure and operation technology and other factors, the drilling angle will be different from the design and drilling, but if beyond the design allowable error, can not meet the geological design Requirements, then also consider the use of manual guided oblique remedy.