Development of Polish Geothermics and Heat Flow data relationship

Development of Polish Geothermics and Heat Flow data

relationship.

Marta Wróblewska, Jan Szewczyk

ENGINE, Launching Conference, Orlean 12-15 February 2006

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

HFD data

Different authors published data of HFD value

HFD evaluated on base of lab data of thermal conductivity

HFD value with using ofthermal conductivity model

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.

Gosnold,2005

Depth interval of HFD estimation

Heat Flow Density of Poland (2005)

160 – 190 oC / 5km

Stargard

Uniejów

Słomniki

Podhale

Mszczonów

Pyrzyce

BHT

Bottom Hole Temperatures D

epth

[m

]

Temperature

Geothermal plants & temperatures at 2 km depth

T oC

Geothermal plants

1996 Jurassic,sandstone

61oC, Mo ~120 g/l

2001Cretaceous, sandstone

60oC, Mo ~ 5 g/l

1999 Cretaceous,sandstone

40oC, Mo~ 0,5 g/l

2001Cretaceous,sandstone

17oC, Mo ~ 0,4 g/l1992/3 Triassic,

limestone dolomite

82- 86oC, Mo<3 g/l

2006Currently starting

Jurrasic, sandstone

Geothermal energy in Poland (2004)

Application Installed Power

(MWt) Heat production

(TJ/r)

Heating i c.w.u.* 82,8 306,5

Balneology 6,8 26,9

Greenhousing, fish culture, wood drying (project of IGSMiE PAN - Podhale)

1,0 4,0

others – mineral salt extraction 0,3 1,0

Heating pumps ~ 80,0 ~ 500

Total 170,9 838,4

* including 23,56 MWt i 74,4 TJ/r from absorbing heating pumps

Kępińska B., (presented on WGC Turcja 2005)

• 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

Summary