Development of Polish Geothermics and Heat Flow data relationship'

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Development of Polish Geothermics and Heat Flow
data relationship.

• Marta Wróblewska, Jan Szewczyk

ENGINE, Launching Conference, Orlean 12-15
February 2006
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Heat Flow Density
HFD estimation errors

• Logging error caused by non equilibrium state
• Different methods of calculation
• Different depth interval taking for calculation

HFD mapping error

• Random scatter data for mapping
• Different approaches of HFD calculation in
• one image

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HFD data
HFD evaluated on base of lab data of thermal
conductivity
HFD value with using of thermal conductivity model
Different authors published data of HFD value
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Paleoclimate effect
The observed vertical variations of HFD in
shallow part of profiles are mainly due to
Holocene warming. The lower part of profiles are
still in thermal regime of the Weichselian
glatciation.
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(No Transcript)
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Depth interval of HFD estimation
Gosnold,2005
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Heat Flow Density of Poland (2005)
Stargard
Pyrzyce
160 190 oC / 5km
Uniejów
Mszczonów
Slomniki
Podhale
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BHT
Bottom Hole Temperatures
Depth m
Temperature
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Geothermal plants temperatures at 2 km depth
T oC
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Geothermal plants
2006 Currently starting Jurrasic, sandstone
2001 Cretaceous, sandstone 60oC, Mo 5 g/l
1999 Cretaceous,sandstone 40oC, Mo 0,5 g/l
1996 Jurassic,sandstone 61oC, Mo 120 g/l
2001 Cretaceous,sandstone 17oC, Mo 0,4 g/l
1992/3 Triassic, limestone dolomite 82- 86oC,
Molt3 g/l
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Geothermal energy in Poland (2004)
including 23,56 MWt i 74,4 TJ/r from absorbing
heating pumps
Kepinska B., (presented on WGC Turcja 2005)
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Summary

• Unification of European HFD estimation method is
  required and shallow holes data should be
  recalculated
• Heat Flow in Poland includes in range 40 90
  mW/m2
• and according to the new results it is 40
  110 mW/m2 that still concludes low enthalpy
  resources classification
• For last few year the growing interest in
  geothermic is observed in Poland, and local
  authorities requires a clear answer for its
  opportunities