ADMINISTRATIEVE & TECHNISCHE GEGEVENS
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Kaart-Nr: 14E
PLAAT: Lillo
Nr: 241 (V, b)
Type Boring: Peilput Doel-2a
Topografische kaart: 7/6
Uitgevoerd te: Doel
Postnr: 9130
Adres boorplaats: Paardenschoor
Kerncentrale Doel
Opdrachtgever: NIRAS
Boorfirma: Smet GWT
Boordatum: maart-april 1998
Topografie: Studiegroep Omgeving cvba, Mortsel
Stalen door: G.C.S. (werfgeoloog S. Helsen)
Boringsmethode: zie opmerkingen
Lengte & doormeters: zie opmerkingen
Grondwaterstanden: 3 filters
1ste maal:
Bij rust :
Tijdens pompen:
Debiet:
Waterzaaknr:
Totale diepte: 455.80 m
Stalen bewaard: neen
Maaiveld/ref. peil: 8.06 m(betonplaat = maaiveld 7.67 m)
X: 142233
Y: 224438
NIS-code: 46006
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STRATIGRAFISCHE INTERPRETATIE
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Top * basis * STRATIGRAFISCHE EENHEDEN (S. Helsen & Lie Sun Fan, 1998)
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13 Quartair en aanvulling
30 Lillo
42 Kattendijk
53 Berchem
90 Boom Putte
104 Boom Terhagen
114 Boom Belsele-Waas
145 Niel
151 Zelzate Watervliet
174 Zelzate Bassevelde
183 Maldegem Onderdijke
188.5 Maldegem Buisputten
204 Maldegem Zomergem
208.5 Maldegem Onderdale
221 Maldegem Asse
? Maldegem Wemmel
? Lede
242 Brussel
263.5 Aalter
278.5 Gent Vlierzele
297 Gent Pittem
301.5 Gent Merelbeke
310.5 Tielt Egem
316 Tielt Egemkapelle
347 Tielt Kortemark
353 Kortrijk Aalbeke
390 Kortrijk Moen
440 Kortrijk St.-Maur
441 Kortrijk Mont Héribu
466 Tienen
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AUTEUR M. Dusar, 16.1.2002
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OPMERKINGEN
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Boormethode, lengten en doormeters
- 0-3 m: 15 ¾" conductor pipe
- 3-455.80 m: boring 13 ¾"
- plaatsing 3 piezometers P3, P4, P5
Rapporten S. Helsen & Lie Sun Fan:
* NIRAS-boringen Doel
* Drilling an geological report Doel-1a well (Nov. 97 Feb. 98)
1. General information
2. Pre-spud well site operations
3. Summary of drilling operations
4. Problems during drilling
5. Drilling mud summary
6. Operational reports
6.1. Daily activity report
6.2. Bottom hole assembly reports
7. Geological reports
7.5. Discussion and conclusions [met beschrijving spoelmonsters in Geodata
format]
Attachment 1: 10 ¾" and 5 ½" casing tally of the Doel-1a well
* Drilling an geological report Doel-1b well (Feb.-Mar. 98)
1. General information
2. Summary of drilling operations
3. Problems during drilling
4. Drilling mud summary
5. Operational reports
5.1. Daily activity report
6. Geological reports
7. Attachment 1: casing tally 5 ½" Doel-1b well
* Drilling an geological report Doel-2a well (March-April 98)
4. Geological reports
* Drilling an geological report Doel-2b well (April 98)
4. Geological reports
+ rapporten Ieper Klei door RUG-LTG en SCK
Logs enkel deze op BGD)
well Doel-1B, field D12, Schlumberger (13-14.2.1998)
CMR-APS-HNGS Array Porosity APS scales 1:200&1:500, interval 60-496 m
CMR-APS-HNGS CMR Presentation scale 1:200, interval 60-496 m
CMR-APS-HNGS Hostile Natural gamma-Ray HNGS-Ratio scales 1:200&1:500, interval
60-496 m
FMI-GR Borehole Geometry Presentation scale 1:200&1:500, interval 60-496 m
FMI-GR Image Presentation scale 1:200&1:40, interval 60-496 m
CMR Permeability & Pore Size Distribution, interval 60-496 m
Peilbuizen
PVC OD 60 mm, ID 48 mm, PN16; zandvang 1 m onder filter
cementstop tot 7 m, kleistop 11-15 m en 207-224 m, cementstop 224-229 m,
kleistop 280-294 m, cementstop 294-297 m, kleistop 297-299 m, cementstop 428-
440 m
P3 Brussel Fm (X 142233,16; Y 224438,51; Z 8.21 m) filter 235-241
P4 Egem Mbr (X 142233,05; Y 224438,54; Z 8.14 m) filter 302-306 m
P5 Tienen Fm (X 142233,09; Y 224438,43; Z 8.06 m) filter 444-450 m
LITHOLOGICAL DESCRIPTIONS Helsen & Lie, 1998
The following lithostratigraphic overview in bases on descripitions from
both Doel- 1a and Doel 1b wells. Depths refer, obviously, to the Doel 1b
where the are measured from the drilling table (39cm above the concrete
floor).
Fill Material (not in situ) (00.00 03.00)
Grey brown clayey fine SAND. Quartz grains subangular subrounded.
Accessories: bivalves, gastropods, mica, glauconite (3%).
Quaternary (03.00 13.00)
Dark grey brown to very dark grey brown sandy CLAY and clayey SAND. Quartz
grains fine and subangular. Organic matter (wood and peat). Accessories:
pyrite, limonite, mica, reworked glauconite.
Pliocene
Lillo Formation (13.00 30.00)
Grey brown to green grey clayey fine SAND. Quartz grains subangular-
subrounded, coatings.
Accessories: bivalves, gastropods, mica, glauconite (2-3%).
Kattendijk Formation (30.00 42.00)
Green grey fine to medium-grained slightly clayey SAND, Quartz grains
subangular to subrounded, some argillaceous coatings. Glauconite content
increasing towards the base (5-25%). Accessories: mica, abundant bivalves
and gastropods.
Miocene
Berchem Formation (42.00 - 53.00)
Very dark green fine-medium clayey SAND. Quartz grains subangular to
subrounded, some argillaceous coatings, Glauconite content varying between
80 and 40%. Accessories: vertebrate remains, abundant bivalves and
gastropods. Fine gravel consisting of flint, quartzite and phosphate at the
base of the unit.
Oligocvene
Boom Formation (53.00-120.00)
Green grey fine sandy and plastic CLAY and SILT. Accessories: traces of
mica, pyrite and occasionally glauconite. Sand and silt content increasing
towards the base.
EOCENE
Niel and Zelzate Formations (120.00-174.00)
Grey fine SAND and SILT. Accessories: traces of glauconite, mica and
glauconite. Pieces of calcareous sandstone, oyster beds (Ostrea) and
occasional pyritised worm casts.
Maldegem Formation (Wemmel Member excl.) (174.00-221.00)
Green grey fine sandy CLAY, Sand is fine to very fine-grained. Occasional
pieces of calcareous sandstone. Accessories: traces of glauconite, pyrite
and mica. Oyster beds, worm casts and foraminifers.
Wemmel Member, Lede and Brussel Formations (221.00 242.00)
Green grey fine clayey SAND and sandy CLAY. Some medium-coarse quartz
grains. Argillaceous and slightly calcareous coatings around quartz grains.
Lenses of clay. Glauconite (2-3%) and traces of mica. Pieces of calcareous
sandstone. Vivalves.
Tielt Formation (Kortemarkt Member 316.00-347.00)
Green grey clayey SILT and silty CLAY with lenses of fine to very fine
SAND. Minute worm casts, traces of glauconite, mica and pyrite. Green grey
soft CLAY with small lenses of fine-grained SAND.
Kortrijk Formation (Aalbeke Member 347.00-353.00)
Green grey soft CLAY, with small lenses of fine-grained SAND
Kortrijk Formation (Moen Member, 353.00-390.00)
Alternation of grey to green calyey silt, silty CLAY and stiff CLAY,
conchoidal fractures of clay common. Lenses of fine to very fine SAND,
often within small bioturbations (worm casts). Accessories: traces of mica,
pyrite (occasionally as nodules) and glauconite in the coarser beds.
Bivalve shells (Amusium) at various depths.
Kortrijk Formation (St. Maur Member: 390.00 440.00)
Alternation of grey to green grey clayey SILT, silty CLAY and stiff CLAY.
Conchoidal fractures of clay common. Lenses of fine to very fine SAND,
often within small bioturbations (worm casts). Accessories traces of mica,
pyrite and glauconite in the coarser beds. Rare gastropods (Turritella).
Towards the base the clay becomes dark grey
Kortrijk Formation (equivalent Mt. Héribu Member; 440.00 441.00)
Dark grey green sandy CLAY. Accessories: traces of mica, glauconite and
pyrite.
Palaeocene
Tienen grey to medium grey fine to very fine clayey SAND (1-3% glauconite
and CLAY. Dark brown organicrich sandy CLAY interlayers between 452 and
455. Clayey and calcareous SILTSTONE with abundant bivalve shells around
451 m (Ostrea, Corbula). Towards the base medium to light greenish grey
fine sandy CLAY and SILT.
BELGISCHE GEOLOGISCHE DIENST
14E0241 (V, b) KAARTBLAD: LILLO
p. 1/1
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