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BAROID, "3/4" HOLE PLUG" Sealing and plugging agent, sodium bentonite, 48 bags per skid.

Description

HOLEPLUG size-graded bentonite is a naturally-occurring Wyoming sodium bentonite clay used to seal and plug earthen boreholes. HOLEPLUG is mined from specially-selected ore bodies which exhibit a high swelling capability. HOLEPLUG will fall through a standing column of water in the hole and reach the bottom with delayed hydration without bridging to the wall of the borehole. Complete fill of the annular space can be achieved, and bridging of the particles in the upper hole is minimized. Complete fill of the annular space is necessary to form an effective, long-term plug in compliance with environmental regulatory requirements.

HOLEPLUG is available in two particle size grades:

• HOLEPLUG 3/4" (100% of particles pass through 3/4" screen; all particles retained on 3/8" screen)
• HOLEPLUG 3/8" (100% of particles pass through 3/8" screen; all particles retained on 1/4" screen) 

Applications/Functions

• Highly recommended for use in grouting annulus in all types of wells, particularly environmental monitoring well applications
• Seal above gravel packs
• Plug decommissioned boreholes
• Seal abandoned earthen cavities
• Seal around conductor pipe
• Seal lost circulation zones
• Shut off artesian flow 

Advantages

• Prevents entry of surface water into boreholes
• High swelling potential
• In situ swelling to provide a superior seal with excellent casing stabilization
• Easier to apply than pellets
• Cost effective
• Simple to apply, mixing not required
• Prevents vertical movement of fluids in the hole between porous zones
• Forms a permanent, flexible downhole seal
• Allows hole reentry
• Rehydratable 

Typical Properties

Bulk density, lb/ft3

• HOLEPLUG 3/4" = 71.8 (as packaged)
• HOLEPLUG 3/8" = 68.8 (as packaged)

Volume of 50-lb (22.7 kg) sack

• HOLEPLUG 3/4" - 0.73 ft3 or 0.027 yd3 or 0.021 m3
• HOLEPLUG 3/8" - 0.70 ft3 or 0.026 yd3 or 0.020 m3
• Moisture - 17%
• Permeability - 1.5 x 10-9 cm/sec (in fresh water)
• Appearance - Beige to tan chips
• Specific gravity - 2.6 

Recommended Treatment

Plugging and Stemming Drill Holes
Due to shipping, handling, and possible slight dehydration, a small amount of fine bentonite particles may be present. For optimum results, HOLEPLUG should be poured over a mesh or screen with ¼" (6.4 mm) openings to "sift out" the smaller particles. The screen should be large enough (approx.1 yd2 or 1m2) to be folded into a "V" shape to allow sifting while the product is being poured into the hole. Also, HOLEPLUG should be poured slowly. Allow approximately two minutes to pour a 50-lb (22.7 kg) bag.

1. Position the screen with the lower end placed over the borehole
2. Slowly pour HOLEPLUG down the "V" so that fine particles fall through the screen before the larger particles fall into the borehole
3. Fill hole as required (above static water level or to ground level)
4. Observe all regulatory specifications

Stopping loss of circulation and stabilizing unconsolidated formations

1. Pull drill pipe out of hole
2. Pour HOLEPLUG into hole to fill above problem zone
3. Drill ahead slowly with reduced pump pressure

Plugging flowing wells

Pour HOLEPLUG into hole until water flow subsides or hole is filled to surface.

Note:
This product has been certified by the National Sanitation Foundation (NSF) to contribute no adverse health problems when used as the manufacturer recommends for the construction of potable water wells.