空气钻井始于三十五年前,至今已成为经济、有效的钻井方法之一。空气钻井装置简单,一般井下复杂情况较少。然而,空气钻井会遇到井下着火爆炸这个难题。井下着火爆炸发生率虽低,但影响大,后果严重。一般说来,着火爆炸后井下钻铤和钻头被烧熔,造成打捞作业难于进行,结果被迫回堵已钻成的井眼,尔后侧钻。 Air drilling began thirty-five years ago and has so far become one of the most cost-effective drilling methods. Air drilling unit is simple, the general complexity of the underground less. However, air drilling encounters the challenge of underground fire and explosion. The downhole fire explosion rate is low, but the impact of serious consequences. In general, the underground drill collars and drill bits are burned after the fire has exploded, making it difficult to carry out the salvage operations. As a result, the drilled hole has been forced back and the side drilled.