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!"#$"%&"'$"()*+(,*-* ./$01,&*$/*2#$"$01#* 3455)&6** * 71&"*8&/5&/* * * * *

2"&/9:*;&)100 times the volume found to date!)

Candidates for SG in NL Posidonia Good •  High average TOC (10%) •  Reasonable thickness (15 – 35m) Not good •  Small areas mature for gas (Ro > 1.2) •  No areas with recent inversion

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Shale Gas candidate in NL

Geverik Mb (Namurian) Good •  High average TOC (8%) •  Proper thickness (60 - 80m) •  Uplifted in Peel area •  Depth range 900 – 1500m Not good •  Lateral continuity of high TOC uncertain

?A*

Onshore Shale Gas Potential Geverik Member: •  10 – 30m net thickness •  some 850 km2 areal extent •  8 m3 gas adsorbed per ton shale •  3% porosity •  average depth 1000m

Volume estimate •  GIIP: 200 – 600 BCM •  UR : 10 – 30 BCM EBN-TNO, 2009

??*

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Onshore Shale Gas Potential Geverik Potential: •  GIIP 0.23 – 0.7 BCM / km2 •  Normal drainage area / well: 80 acres ! 3 wells / km2 (horizontal + fracs) •  Connected GIIP per well: 0.07 – 0.23 BCM

Economic EUR/well cut-off: In USA: 2 Bcf = 0.06 BCM/well In NL: 3 Bcf = 0.09 BCM/well EBN-TNO, 2009

This means 50 – 100% recovery! Only in sweet spots this may (just) work ?B*

Gasproduction in the Netherlands

Slochteren

This takes approx. 1000 producing shale gas wells

Offshore Land Source: EBN, 2010

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Unconventional Gas in the Netherlands

If it s there, we ll find it!

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