Water burst blast hole plugging method
A blasting hole and water gushing technology, which is applied in earthwork drilling, wellbore/well parts, sealing/isolation, etc., can solve problems such as difficult quality assurance, long plugging time, poor plugging effect, etc., and achieve simple and convenient construction, Good plugging effect and fast construction speed
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[0013] The present invention will be described in detail below in conjunction with the embodiments.
[0014] A water plugging method for water gushing holes, the steps of which are:
[0015] (1) When blasthole drilling encounters water gushing, stop drilling immediately, operate the drilling rig, rotate the drill pipe in the opposite direction, and withdraw the drill pipe gradually.
[0016] (2) Prepare the high-pressure rubber expansion hose. The length of the high-pressure rubber expansion hose is 30-50cm, the outer diameter is 3-5mm smaller than the blasthole diameter, and the wall thickness is 8-10mm. Both ends of the high-pressure rubber expansion hose are closed structures, and a check valve and a water injection hose are installed at one end. The expansion hose is pushed into the hole, and stops when it reaches the bottom of the hole, so that the high-pressure rubber expansion hose is installed at the bottom of the hole.
[0017] (3) Using the water injection hose ins...
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