Inflatable packers |
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 The
"Bimbar" inflatable packers are supplied in range of 9
different diameters from Ø28mm to Ø170mm.
All packers inflatable elements are reinforced with two layers of
steel cables embedded in natural rubber.
The packers are inflated with neutral gas (air, N2) or
liquid (water) injected through an inflation line.
The packers could be single or double.
Some typical applications are:
- "tube à manchettes" grouting,
- rock grouting,
- permeability testing,
- bore-hole fluid sampling,
- hydraulic fracture testing,
- industrial piping hydro-testing,
- water wells repair,
- aquifers monitoring.
Main specifications and dimensions of single
and double packers
Nominal diam.
(mm) |
Connection upper
"TC" |
Central tube "CP"
Inner diameter (mm) |
Expansion max
Diameter (mm) |
Bore-hole max
diameter (mm) |
Inflation inlet(s) |
28 |
3/8" BSP * |
8 |
55 |
50 |
1X 1/8" BSP |
30 |
3/8" BSP |
8 |
55 |
50 |
1X 1/8" BSP |
42 |
1/2" BSP |
17 |
98 |
90 |
2X 1/8" BSP |
56 |
3/4" BSP |
20 |
125 |
110 |
2X 1/8" BSP |
72 |
1" 1/4 BSP |
35 |
160 |
150 |
2X 1/8" BSP |
85 |
1" 1/4 BSP |
35 |
185 |
170 |
2X 1/8" BSP |
102 |
2" BSP |
53 |
200 |
190 |
2X 1/8" BSP |
130 |
3" BSP |
83 |
270 |
240 |
2X 1/4" BSP |
170 |
3" BSP |
83 |
350 |
330 |
2X 1/4" BSP |
 The
basic components of the packers are:
- The upper fixed end (FE) equipped with one
or two inflation inlets with one adapter
- The center pipe (CP), made of stainless steel
- The dilatable element (S), mounted with steel
fittings on both sides
- The sliding end (SE), equipped, up to Ø102mm,
with a scraper ring
All packers are supplied with inflation adapter IA (quick
coupling type).
Cutting ring couplings are also available on request.
The length (L) of the dilatable element depends
on the application requirements.
Standard lengths are:
- L:300mm for Ø 28 and 42mm packers
- L:500mm and 1000mm for Ø 28-42-56-72-85
and 102mm packers
- L:1000mm for Ø 130 and 170mm packers
- L:1500mm for special applications
Other lengths are also available on request. These single packers
can be easily transformed into double packers.
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Each single packer from Ø 28mm to Ø 170mm
can easily be transformed into a double packer assembly by
adding a specific element: the central element CE. Just unscrew
the sliding end from the single packer and replace it with
the CE element.
Complete the installation by screwing a standard inflatable
element S (sleeve) and a plug PL on the lower part of the
packer.
The perforated CE central element from Ø 56mm to Ø
170mm consists of a compact and perforated tube, with a diameter
identical to the whole packer assembly.
This design makes the double packer ZI extremely robust and
the external flush O.D. is particularly well adapted to micropiles
grouting and water pressure tests.
With Ø 28,30 and 42mm packers, the narrow space between
the two packer elements does not allow to use the same tubular
design.
Here, the CE element consists of 4 pipes, two of which are
used for inflation of the lower packer.
As standard, the central element can be extended except the
42mm one which is on request only.
A special characteristic of these packers is that the injection
zone (IZ) length remains constant after inflation.
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 Inflatable
packers for special applications:
- Testing system for water wells from Ø8 1/2" to Ø12
1/4"
- Packer Ø273mm (10 3/4")
- Inflatable packer for wireline core barrels
- "Tigre Tierra" Wireline Packer
- Plug Packer from Ø56 toØ170mm
- Print Packer
- Pumpacker for water sampling
- Hydrofracturation packers
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