Our 400 H.P. and 700 H.P. Portable AQUA-FRAC™ hydro-fracturing rigs with their low profile are suitable for use in small tunnel applications.
With all the electrical hardware and computer systems on board, AQUA-FRAC™ rigs are self-contained systems that only require the operator to supply electrical power.
AQUA-FRAC™ — Front View
AQUA-FRAC™ — Top View
Hydro-fracturing is a method of improving the yield of various types of wells by opening and flushing out previously closed fractures with high pressure water. We have available a range of high pressure AQUA-FRAC™ inflatable packers suitable for this and similar applications such as stress testing, de-gassing coal bed methane and block caving. Standard sizes are available for bores from 30 mm (1.2") to 200 mm (8") diameter with pressure ratings up to 700 bar (70MPa or 10,000 psi)
Fracturing or Stress Testing is a method employed in geotechnical investigations to assist in the determination of in-situ rock strength. The basic method is to use inflatable packers to isolate the section of interest, then generate a fracture in this section by water pressurization and measure the orientation of this fracture using an impression packer. (An impression packer has a cover made of a semi-cured rubber that retains an impression of the borehole wall when deflated. On packer removal this impression can be examined to determine its orientation.) This information allows determination of the principal in-situ stress of the rock mass. There are packer systems and associated hardware to suit such testing in all hole sizes from 30 mm to 150 mm in diameter.
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