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A method of plugging holes, in particular the plugging of drill holes in earth. The method consists of inserting an auger, having a bit at the lower end and a central rod about which is formed a helical land, into the drill hole and rotating the auger to cause material to be conveyed upward and out

A method of plugging holes, in particular the plugging of drill holes in earth. The method consists of inserting an auger, having a bit at the lower end and a central rod about which is formed a helical land, into the drill hole and rotating the auger to cause material to be conveyed upward and out of the drill hole. As the auger is moved downward this will cause any plugs or debris within the hole to be removed. After the auger has been inserted to a sufficient depth the rotation of the auger is reversed, and bentonite or other plugging material is poured into the drill hole about the auger. The reversed rotation of the auger will cause the plugging material to be conveyed downward along the drill hole and compacted at the bottom. As the drill hole is filled with compacted plugging material the auger is slowly removed to form a consistent reliable plug of the plugging material. A second method utilizes a tubular capsule filled with coarse ground sodium bentonite. The capsule, when inserted into the hole, sinks through any mud or slurry material within the hole to rest at the bottom of the hole. If the hole is filled with overly dense material, a rod may be used to force the capsules to the bottom of the hole. The capsule is constructed of a water soluble material and includes a plurality of slots cut along its exterior wall to facilitate expansion and to allow liquid to easily permeate the container. A plastic cap on its upper end allows rods to be forced thereagainst to push the capsule downward without puncturing the capsule.

대표청구항 ▼

A capsule for plugging a drill hole having an opening at a surface and an inner diameter; said capsule comprising: a liquid soluble exterior cylindrical wall formed about a longitudinal axis and having upper and lower ends, said wall forming an interior chamber extending along a length thereof; a pl

A capsule for plugging a drill hole having an opening at a surface and an inner diameter; said capsule comprising: a liquid soluble exterior cylindrical wall formed about a longitudinal axis and having upper and lower ends, said wall forming an interior chamber extending along a length thereof; a plurality of coarse ground bentonite chips packed within the cylindrical wall and substantially filling said interior chamber; and end caps closing said upper and lower ends of said cylindrical wall, said wall including at least one slot cut therein and extending along a length of said wall.