Technology of Acoustic Influence for Production Optimization of Oil, Gas and Water Wells.

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Technology of Acoustic Influence for
Production Optimization of Oil, Gas and Water
Wells.

• Optimizing the effectiveness of oil, gas and
  water wells on different stages of their
  exploitation is one of the directions in water,
  oil and gas production, that show considerable
  promise. For that reason, active work in this
  field has always been conducted by research of
  scientific and engineering centres. The result of
  this work is rather big quantity of various
  methods that are now used in different corners of
  the world.

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DFM Technology

• The most progressive method - the acoustic
  one - has been used by us to create the
  DFM-technology i.e. technology of acoustic
  influence on the productive strata. The
  technology uses the ultrasound, which is
  irradiated by specially developed piezoceramics.
  
• The DFM-technology allows to increase
  production in several times (30-300 percent) for
  oil, gas and water wells. It is made through
  breaking up the clogged strata zones and the ones
  with poor permeability. The DFM is based on using
  the MF ultrasound pulses. It is covered by
  patents of Russia and Ukraine and is
  characterized by absolute ecological safety, high
  effectiveness and low power inputs.
• An important asset of the DFM-technology is
  that the extraction is stopped only for a short
  time exploitation of a developed well. Effect
  increases for a long time, depending on the
  geological and production characteristics of
  strata.

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WELL
Downhole module
Perforation
Production string
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DFM Technology
For more than 5 years, we has been using the DFM
-technology at various oil, gas and water fields
both in Ukraine and abroad. Within this period,
we have managed to achieve serious success in
terms of development of the technique and
equipment.
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COMPARISON OF TECHNOLOGIES
advantages DFMultrasound Chemical Hydraulic
method     Hydraulic
Condition of oil production while execution of well cleanup works stopped only for a short time stoppage of oil production, work of well stoppage of oil production, work of well
Increase of oil production 30-300 15-50 up to 50
Well cleanup works duration 2-3 days Up to 1 month 5-7 days
Environmental safety safe harmful harmful
Guarantee and effectiveness hIgh medium low
Works safety level high medium low
Manpower resources 2 persons 2-3 persons 3-4 persons
Energy consumption low low high
Influence upon the equipment, structure of layers does not influence causes the corrosion of the equipment causes crevice appearance in the equipment, deformation of layers
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Advantages

• Increased acoustic power
• Simplified service maintenance of the generator
• The generator is overvoltage and temperature
  resistant
• No vacuum in a zone of enhancement
• Guaranteed increase of production resource of the
  radiator
• Smaller dimensions
• Lower electricity consumption.

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Technical Specification

• 1. ACOUSTIC RADIATOR
• diameter 44 mm (1 3/4" 1.75 ")
• length up to 1.5 m (5 feet)
• weight up to 10 kg (22 pounds)
• It is made of corrosion resistant material
• 2. ELECTRIC CABLE with three phases conductors
  lines
• 3. GENERATOR
• dimensions 45?30?45 sm
• weight lt25 kg (55 pounds)

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Tatarstan Russia

Poltavagazvidobuvanya Ukraina
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Ukrgasvidobuvanya Ukraina
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Ommdurman water well Khartoum State Water Corp.
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Economic Effectiveness of Applying DFM -technology

• According to the recommendations on
  al-around effectiveness evaluation, economic
  effect from the carrying out the work pursuant to
  DFM technology is determined by showing the
  economic effect.
• Calculation of the effectiveness is based
  on index of a daily oil (gas) production before
  and after DFM -technology was used during a
  certain period of time.

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Calculation of Economic Effectiveness of Applying
DFM at Oil Wells

• Assuming
• ?d 6 30 180
  (days).
• Qo 30 t/d.
• Q?? 50 t/d.
• P 430 /t. ( 68
  /bar. )
• Then
• We define additional production DQ 20 t/d .(
  65 )
• Cost Estimation Ce 204301801 580 000 .
• The economic analysis is evidence of high
  profitability and payback of DFM -technology used
  on oil-wells.

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Required Preliminary Information on Wells

• Well depth
• The level of static (the level of liquid in the
  well) and dynamic pressures
• Wellbottom zone temperature
• Perforation intervals
• Tubing running depth
• Tubing pipes diameter (is natural flow free)
• Project site information (name and date of the
  formation in the perforation zone)
• Well commissioning date and initial well
  production rate
• History and dates of the bottom-hole formation
  treatment activities (acidizing, surfactant
  treatment, etc.)
• Dates of the latest well-logging measurements
• Current well production rate (before ultrasound
  application)
• Presence of any oil-water contact in the
  perforation zone (if yes, its location is to be
  specified).
• Hydrocarbon-type composition of the oil. Note
  more important factors from these specifications
  are Density, gas factor, content of the water
  (per cent)

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Requirements to Wells Being Enhanced

• Accessways are required to reach the platform for
  equipment installation (jacking log-processing
  station, portable log-processing laboratory and
  jacking lubricator installation).
• Calibering is required before the start of the
  works in order to provide free access of
  geophysical equipment and ultrasonic transducer
  to the perforation zone.
• Well treatment zone should not be blanked off by
  tubing string pipes. The treated wells may be the
  ones that are
• - currently exploited
• - under major overhaul.
• The treatment zone is to contain liquid medium.
  The level of liquid in the treatment zone should
  exceed the treatment zone.

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• Our technology allows to use the old well
  and maximally exploitation of their primary
  opportunities. This examples prove high and rapid
  economic effectiveness of applying DFM-technology
  on oil and gas wells, even in case of
  comparatively insignificant increase of
  production and minimal period of treatment.

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• The DFM-technology has been successfully
  tested on gas condensate and oil fields of
  Ukraine and Russia. Considerable well and
  hydrocarbons production increase (from 30 up to
  300 percent) has been achieved, which is
  supported by the certificates of intake capacity
  tests of KHARKOVGAZDOBYCHA, UKRNIIGAZ and
  TATNIPINEFT and many others.
• Out of an experimental method, the DFM has
  become an industrial highly effective and
  developed technology. For the present, our
  organization is the leader in the field of
  acoustic influence technologies in Ukraine.

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