Procedure

General

Hydropuls® is a pulse method for increasing the performance of production wells and production boreholes as well as groundwater measuring points.

The pulse generator produces sequences of pressure pulses. The valve system of the pulse generator is capable of releasing the energy accumulated in the generator in the form of high-pressure gas in very short switching times (milliseconds), thereby creating hydraulic shock waves.

At the same time, the sudden change in volume causes a cavitation effect (cavitation), which leads to the formation of a “vacuum bubble” that subsequently collapses, generating a hydraulic “suction wave.”
This method is an approved method according to DVGW Merkblatt W 130.

hydropulse
hydropulse

Principle

Schematic sketch – Procedure sequence:

  • Gas cylinder (nitrogen / air)
  • Media supply – compressed air/electrical energy
  • Electric hose winch with depth indicator
  • Control unit
  • Tripod with return pulley
  • Compressed air hose
  • Pulse generator
  • Underground pump/ airlift
  • Filter pipe with gravel layer
  • Aquifer

Parameters

Features and technical specifications of the process

Operating principle:
Pressure wave pulse process
Energy medium:
Highly compressed gas (nitrogen/air)
Impulse triggering:
Automatic
Working pressure:
Up to 100 bar / opt. up to 400 bar
Pulse sequence frequency:
0.5 – 0.1 Hz; adjustable
propagation speed of the pulses:
Up to 2000 m/s
Energy input:
Up to 25 kJ per pulse
Effective radius of the pulses:
Up to 25 m depending on the surrounding rock mass
Well diameter:
From 75 mm
Operating depth:
Depending on the hydrostatic pressure, up to a maximum of 2000 m water head
Support material:
Stainless steel, steel, PVC, HDPE, OBO, stoneware, unlined solid rock
Filter types:
All common filter types
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