How do you perform a Lugeon test?
The test is conducted in a portion of a borehole isolated by pneumatic packers. The water is injected into the isolated portion of the borehole using a slotted pipe which it self is bounded by the inflated packers.
What is a packer test?
Packer testing is a technique in which one or more inflatable bladders, or packers, are used to isolate different regions of a borehole for hydraulic testing or water sampling.
What is Lusion value?
Numerology. Chaldean Numerology. The numerical value of LUSION in Chaldean Numerology is: 7. The numerical value of LUSION in Pythagorean Numerology is: 9.
Which in situ testing method is used to estimate the average hydraulic conductivity of rock mass?
The Lugeon test
The Lugeon test is an in- situ testing method widely used to estimate the average hydraulic conductivity in rock mass. The test is named after Maurice Lugeon, a Swiss geologist who first formulated the test.
What is the purpose of pumping test?
The goal of a pumping test, as in any aquifer test, is to estimate hydraulic properties of an aquifer system. For the pumped aquifer, one seeks to determine transmissivity, hydraulic conductivity (horizontal and vertical) and storativity (storage coefficient).
What is Lugeon value?
More specifically, the Lugeon test is used to measure the amount of water injected into a segment of the bored hole under a steady pressure; the value (Lugeon value) is defined as the loss of water in litres per minute and per metre borehole at an over-pressure of 1 MPa.
Why Packer is used?
Uses of packers Allows the optimum size of well flow conduit (the tubing string) to meet the designed production or injection flowrates. Protect the production casing (inner casing string) from corrosion from produced fluids and high pressures.
What does Lusion mean?
A user from New Zealand says the name Lusion is of English origin and means “Gift of God bringing meaning to life”.
What are the methods used in laboratory to measure hydraulic conductivity?
This study presents five laboratory methods which can be used to estimate the hydraulic conductivity of soils: variable-head permeameter – Kamenski; simplified permeameter; constant-head Cromer permeameter, in two working configurations; constant-head permeameter connected to piezometric tubes and a variable-head …
How do you test hydraulic conductivity?
The steady-state method is performed for the measurement of hydraulic conductivity by maintaining a constant hydraulic head gradient across the soil specimen. The constant hydraulic head gradient leads to a steady-state water flow through the specimen.
What is the unit of Lugeon?
“More commonly and less accurately the permeability is expressed in lugeons, where 1 lugeon is equivalent to a test flow of 1 litre per minute at a pressure of 10 atmospheres; 1 lugeon is approximately 10⁻⁷ ms⁻¹, the limiting permeability of engineering significance.”