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and view a PowerPoint presentation about Downhole Fluidics
Oscillator technology. |
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The fast, effective solution to well cleaning and stimulation
problems .
Using PerfClean Tool System technology, the Downhole Fluidics Oscillator
creates pulsating pressure waves to break up near wellbore damage
and restore and enhance the permeability of the perforations and
near wellbore area.
Advantages of using Downhole Fluidics
- Reliability – no moving parts or packing elements to fail
- Small size – 1.25” O.D. available
- Removes near wellbore damage instead of breaking through it
- The entire interval is cleaned not just the open sections
- Dramatic reduction in communication between perforations
- Fast – clean out fill and stimulate well in one trip
- Not limited by “stand off” like jetting nozzles
- Versatile – can be run with other tools
- Enhance the use of chemicals by breaking up damage thereby increasing
contact area
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Downhole Fluidics Applications
- Removal of scale and other deposits from the near wellbore area,
perforations, screens
- Primary stimulation of high permeability formations
- Preparation for follow-up stimulation treatments
- Preparation for gravel packing or frac packing
- Clean out fill from open hole or casing
- Alteration of injection profiles
- Correct placement of treating chemicals.
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Types of Wells
- Oil
- Gas
- Injection
- Geothermal
- CO2
- Water
- Disposal
- Monitoring
- Solution Mining
- Cased or Open Hole
- Vertical or Horizontal
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Common Problems Treated
- Perforating damage
- Scales of all types
- Formation fines
- Paraffins
- Asphaltenes
- Lost drilling mud
- Dehydrated mud
- Emulsions
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How Does Downhole Fluidics Work?
- The treatment fluid enters the switch body and is accelerated
into the fluidic oscillator.
- The fluid stream enters the oscillator and preferentially
attaches to the outer wall of one of the fluid passageways.
- The flow continues down the selected passageway towards
the outlet to the wellbore.
- As the flow passes a cross channel, a low pressure area
is created which causes the main fluid stream to be interrupted
and the flow to switch to and attach to the other fluid
passageway.
- Continuous flow causes the flow to oscillate from one
side to the other which causes alternating “bursts”
of fluid to be ejected into the wellbore.
- As each “burst” is ejected, it forms a pressure
wave within the wellbore fluid.
- Compressive loading occurs when the wave contacts the
damage.
- As the wave passes through the damage (scale, etc.) and
is reflected back, it induces a tensional loading on the
skin damage.
- The continuous cycling of the pressure waves causes the
skin damage to reach its fatigue failure point and break
up.
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Common Fluids Used
- Any non-abrasive fluid suitable for downhole conditions.
Product Details
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