Sampling Ports and Manifolds

The Waterloo System Design Explained

The Waterloo System uses modular components which form a sealed casing string of various casing lengths, packers, ports, a base plug and a surface manifold. This allows accurate placement of ports at precise monitoring zones.

Monitoring tubes attached to the stem of each port individually connect that monitoring zone to the surface. The standard system is built on 2" (50 mm) Sch. 80 PVC to fit 3"- 4" (75 - 100 mm) boreholes and uses 3 ft (915 mm) long packers. Stainless steel components and various diameters of monitoring tubing are available

 

Modular Sealing Joints**

The slip-on joint design of the Waterloo System uses a nylon shear wire and a double o-ring seal. This gives reliable, leakproof joints so that the core of the Waterloo casing string is isolated from external formation waters. Groundwater is only accessible via the port stems and attached monitoring equipment. This water-tight seal also prevents contact between packer inflation water inside the casing and the formation water outside the casing.

solinst waterloo system oring joints with shear wire

O-Ring Joints with Shear Wire

 

solinst waterloo system multi purge wellhead manifold

Multi-Purge Manifold Wellhead

 

Customized Wellhead Manifolds

The manifold completes the system at surface. It organizes, identifies, and coordinates the tubes and/or cables from each monitoring zone.

The manifold allows connection to each dedicated transducer in turn, and a simple, one-step connection for operation of pumps. When dedicated pumps are selected, a unique wellhead allows individual zones to be purged separately, or purging of many zones simultaneously to reduce field times.

olinst waterloo multilevel monitoring groundwater samplers groundwater sampling systems pressure transducers packers detailed 3d data permeability measurements hydraulic head measurements discrete zone monitoring waterloo systems waterloo multilevel systems image

Multi-Purge
Manifold Wellhead

olinst waterloo multilevel monitoring groundwater samplers groundwater sampling systems pressure transducers packers detailed 3d data permeability measurements hydraulic head measurements discrete zone monitoring waterloo systems waterloo multilevel systems image

Permanent
Waterloo Packer

olinst waterloo multilevel monitoring groundwater samplers groundwater sampling systems pressure transducers packers detailed 3d data permeability measurements hydraulic head measurements discrete zone monitoring waterloo systems waterloo multilevel systems image

Dedicated
Sampling Pump
and Transducer

olinst waterloo multilevel monitoring groundwater samplers groundwater sampling systems pressure transducers packers detailed 3d data permeability measurements hydraulic head measurements discrete zone monitoring waterloo systems waterloo multilevel systems image

2" PVC
Casing & Plug

 

** US Patent 5,255,945