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DOWN HOLE TOOLING 

M-1000 Vane Borer 

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Nilcon

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The M-1000 vane borer is a precision field instrument which consists of a torque recording head, boring rods, a specially designed vane, and a slip coupling. The system is supported by a torque head casing adaptor. The torque head is both a loading and recording instrument. It contains a crank-operated loading device by which the rods can be rotated at two different speeds.

A complete, accurate and permanent test record is scribed by a sharp steel pointer on a waxed paper disc. The torque is recorded radially, and the angular rotation tangentially. A transparent cover protects the recording chart. A sample recording is illustrated on the overleaf.

Vane and slip coupling The vanes are made of high ultimate strength (1 700 000 kPa) tempered, chrome-nickel steel. A special slip coupling allows for using only one set of rods. The very low friction bearing in this sealed coupling permits a free slip, or “play”, of approximately 15° between the rods and the vane. During the test, the rod rotates first until the play has disappeared, after which the rod and vane rotate together. On the test record shown at right, Mf is the torque required to turn the rods only. The maximum torque required to turn both the rods and the vane is Ms. The difference (Ms − Mf) determines the soil’s shear strength. Note that the reduction in shear strength after failure is easily determined by a remolded strength test at the same test depth.

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Series 1100

Auto-Sense Water Level Meter 

w/ Optional Well Profiling Probes

The dipper-T water level meter can be conveniently converted to a multi-functional instrument not only able to measure static and falling head levels but also to determine the length of casing and well depth. The water level sensing probe can be easily removed at the link and substituted with either the optional Well Casing Indicator Probe or Well Depth Indicator Probe. Now with Auto-Sense to automatically filter out cascading water and an adjustable volume dial. The FOUR FUNCTION capability of the dipper-T water level meter makes this unit an asset to groundwater professionals and rural property owners during the construction of new wells, maintaining wells, or decommissioning abandoned wells.

Features

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  • Premium Water Level Meter

  • Measure depth to water accurately

  • Easily collect drawdown data to calculate well production

  • Interchangeable probe capability

    • Compatible Well Depth Indicator Probe

    • Compatible Well Casing Indicator Probe

  • Modular Design makes for inexpensive and easy repairs

Inflatable Packers - BCH

Modular Design | Simple or Double Packer
From 28mm to 170mm

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Packers

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Features

  • Steel cable reinforced natural rubber membrane

  • NPT pipe thread

  • Modular design: single packers are easily converted to double packers

  • Double packer test zone length easily adjustable

  • Suitable for sleeved grouting pipes (TAM)

  • In the field replaceable packer membrane

The BCH series of inflatable packers consist of an inflatable membrane, fitted with swaged steel collars, mounted on a stainless steel 
center tube. They can be inflated with a variety of fluids such as 
water, air, nitrogen, etc., to provide a tight seal in holes or casings. 
The membrane flexibility and the range of pressures ensure a tight 
fit against irregular rugged walls. The same size packer will fit a 
wide range of hole diameters. Single units can be converted to 
double packers.

The membrane element consists of a rubber reinforced with extensible steel fabric, and covered with an additional layer of abrasion 
resistant rubber. Threaded swaged collars terminate both ends of 
the gland. The collars are used to thread the gland onto packer 
heads which are mounted on the center tube. One of the heads is 
fixed and contains the inflation port. The other head is free to move, 
allowing the highly reinforced gland to retract about the center tube 
as it inflates. An NPT pipe thread terminates the top end of the center tube. An assembly is available for use with wireline equipment.

Application

  • Permeability testing

  • Pressure grouting in fractured or unconsolidated formations

  • Water infusion for dust control in coal mines

  • Methane gas control and collection in mines

 

  • Sealing elements in soil or rock boreholes

  • Water sampling testing in rock formations

  • Hydraulic fracturing of formations

  •  Quality control testing of tubes

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