TRU-BORE^®

                                  The Simplest Solution to Boring Problems

TRU-BORE® is a highly concentrated bentonite based drilling fluid designed for difficult drilling operations in

both vertical and horizontal borings. It is extremely effective in horizontal drilling applications to maintain hole

integrity during pullback. It is non-toxic and environmentally safe. Its fast-hydrating formula allows contractors

to mix fast and build viscosity quickly. TRU-BORE® stabilizes formations ranging from moderate clay soils to

high concentrations of sand. By forming a thin tough filter cake, fluid loss to areas around the borehole is

reduced. These factors, coupled with excellent gel strength values make TRU-BORE® the best risk

management tool available today.

TYPICAL CHARACTERISTICS:

 

• Barrel Yield: 240 - 260

• Fluid Loss: 12 – cc.

• Mesh: 80% ± 2 passing 200 mesh

• PH 8.1 ± .2

• Moisture: 8% ± 1.5

MIXING RATIOS:

For 500 Gallons of Make-Up Water

For every 100 gallons of make-up water, adding 15 to 25 pounds of TRU-BORE® will yield a viscosity of

approximately 45 seconds on a Marsh funnel. At a rate of27 pounds per 100 gallons,viscosity can climb

to 60 seconds.

Clay: 1½ bags for viscosity of 32-35 seconds, then add Shur-Drill® liquid polymerto reach a viscosity of 42-45

seconds. (The addition of Shur-Drill® keeps the clays from thickening the mud system even more.)

Sand: 2¼ - 3 bags for viscosity of 55 ± seconds

Unknown or Medium Soils: 1½ - 3 bags for viscosity of 45 seconds.

TRU-BORE® is packaged in 50 pound multi-walled paper bags, palletized 60 bags per pallet

and shrink-wrapped.

 DRILLERS SERVICES, INC.                     Hickory, North Carolina USA                   800-334-2308, ext. 230