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ADMINISTRATIEVE & TECHNISCHE GEGEVENS
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Kaart-Nr: 16E
PLAAT: Oostmalle
Nr: 176 (IIIa)
Type Boring: Filterput (gas) DZH14
Topografische kaart: 8/6
Uitgevoerd te: Rijkevorsel
Postnr: 2310
Adres boorplaats: Korenblok - Heiveld Karreweg
Opdrachtgever: Distrigas - BGD
Boorfirma: Foraky
Boordatum: 13 dec. 1989 - 26 jan. 1990
Topografie: opgemeten door Distrigas
Stalen door: de werfgeoloog
Boringsmethode: inspoeling
Lengte & doormeters: 17"1/2>13"3/8 tot 48.9m; 12"1/4>9"5/8 tot 195m; 8"1/2>7" tot 1250m; 6"1/8>5" tot 1403 m
Grondwaterstanden:
1ste maal:
Bij rust :
Tijdens pompen:
Debiet:
Waterzaaknr:
Totale diepte: verticaal 1380 m t.o.v. maaiveld, 1403 m geboord
Stalen bewaard: ja door BGD
Maaiveld/ref. peil: + 27.76 m
X: 175609.6
Y: 227355.4
NIS-code: 13037
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BOORBESCHRIJVING
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Nr * Diepte Basis * AARD DER GRONDLAGEN
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DESCRIPTION DEPTH SAMPLE DEPTH WITH VERTICAL
Cutting LAG TIME DEPTH
CORR.
Soil sand, yellow 6 6
Greygreen plastic clay, non calcitic 8 x 8
Medium grey sand 9 9
Greengrey silty clay 10 x 10.5
Greengrey clayey silt with lignite and 17 17
few quartz grain
Ditto, with some wood fragments, gradually 23 x 23
increase in grain size
Grey clayey silt, mix with few quartz grain, 28 28
heterogenous with some wood fragments, lignite
Silty to medium-fine grey sand with lignite 32 32
Medium to coarse quartz sand, palegrey, medium 42 x 42
sorted, with lignite
Ditto, coaser, heterogenous, with wood fragment, 49 49
and lignite
--------------------END PHASE - 17 1/2"------------------------------
Darkgreen glauconite-rich fine sand, abundance 55 x 55
of fine shell fragments (note-sample was taken by
the drilling crew)
Fine to medium sand, grey, heterogenous, 65 65
glauconitic, few shell fragments, fully
contaminated with cement (??)
Grey, glauconitic fine sand, abundance of shell 70 x 70
remain, mainly thick-wall shell, gastropodes,
dentalium, fine thin-wall shell remain,
pectine, small black gravel, few quartz grain,
cemented siltstone
Darkgreen glauconite-rich fine sand, abundance of 75 75
shell fragments, with some cement impurity
Medium to coarse green sand, very rich on 79 x 79
glauconite, with some quartz grains, less shell
fragments
Darkgreen medium to coarse sand, very rich on 85 85
glauconite, shell fragments content is strongly
reduced, with a large piece of cement
Greengrey coarse sand, fairly glauconitic, with 90 x 90
few shell fragments
Ditto, no shell fragments 95 95
Coarse quartzitic light green sand with few fine 100 x 100
shell remain, glauconitic, with black fragments
Ditto, finer in grain size, more in glauconite, 105 104
cement impurity, shell fragments, siltstone
concretion
Greengrey heterogenous fine to coarse grain sand, 110 107
rich on glauconite, very few fine shell fragments
Darkgreen fine sand to silt, rich on glauconite, 115 x 112
with some quartz grain
Ditto 120 116
Darkgreen glauconite-rich silty fine sand 125 123.5
contaminated with some cement fragments
Ditto, with few quartz grains, a lot of 130 128.5
contaminations - casing and cement material
Ditto, full with contaminated material; grease, 135 133
cement etc. (may be material fall down from wash-
out area at about 90m)
Ditto, but coaser grains 140 137.5
Ditto, heterogenous coarse sand, very rich on 145 x 142.5
glauconite
Darkgreen fine sand to silt, rich on glauconite, 150 x 146.5
with shell abundant, mainly Dentalium
Ditto, silty sand, rather clayey 155 x 151.5
Ditto, obviously the glauconite grains are much 160 x 157
coaser, heterogenous, dark-darkgreen, with shell
fragments and few cement, with some quartz grain
(contamination material)
Clayey, lees green in colour, thus less glauconite 165 x 162
content, colour towards grey
Greengrey plastic clay 170 x 167.5
Ditto, rather silty 175 173.5
Ditto, with some large cement block 180 179
Ditto, greengrey plastic clay 185 183
Ditto 190 x 188
Ditto 195 193.5
Greengrey plastic compact clay (sample from RB) 200 x 198
------------------ END PHASE 12-1/4"-----------------------------------------
Ditto, greengrey clay, less plastic, sandy, and 205 203
with some cement contamination
Greengrey sandy clay (note: Septaria was not found)210 207
Ditto, but plastic, still contaminated by cement 215 213
Ditto 220 x 218
Ditto, silty clay 225 223
Ditto, rather sandy clay (with cement plug fragment) 230 228
Greyish compact clay 235 234
Ditto, with contamination 240 239
Ditto 245 244
Ditto 250 249
Greengrey compact clay with sand-fraction and 255 x 254
glauconite
Ditto, but more plastic, more grey and less sand 260 x 258.5
content
Dark greengrey compact clay with black fragments 265 263.5
(pyrite/apatite?), some sand concretions
Greyish clay, less compact, rather silty, with some 270 x 267
hard sandstone concretions (not Septaria), glauconite
Ditto 275 267
Ditto, sandier (rubber fragment from cement plug 280 x 272
Greyish compact clay, rather silty, with siltstone 285 275
concretions, few fine shell fragments
Greyish strong silty clay with some shell fragments 290 x 281
Ditto 295 283
Strong glauconitic sandy clay, with some fine shell 300 x 288
fragments
Ditto, sandier and strong glauconitic, greener in 305 303.5
colour, with cement plug rubber, few sandstone
concretions
Greengrey strong sandy clay, glauconitic, with some 310 x 304
black fragments and sandstone concretions
Grey, fine to medium sand, glauconite, with some 315 x 305
shell fragments
Greengrey sandy clay 320 x 317
Greengrey compact clay (silty) 325 x 318
Greengrey sandy clay, with sandstone concretions 330 x 328.5
Ditto 335 333.5
Greygreen rather compact clay, sandy 340 x 337.5
Ditto, with a hard lime concretions (Septaria?) 345 343.5
Ditto, but with hard sandstone concretion 350 345.5
Greygreen compact clay, sandy 355 353
Ditto 360 x 358
Greengrey, clayey fine to medium sand, with plenty 365 x 363
of fine round-shell fragments (Nummulites?),
gastropodes, few large shell-remains, glauconitic
Shell-bed (Lummicelle horizon), abundant of 370 x 363.5
Nummulites (white and darkgrey types), brown
Dentalium
Ditto, with sandstone concretions, Echinoderms 375 x 371
Belemites?, Nummulites
Ditto 380 375
Ditto 385 384.5
Clayey fine sand with large shell-remain (Ostrea, 390 x 385.5
Pectines), casing material, much sandstone concretions
Grey clayey fine sand with a lot of casing material, 395 390.5
abundance of large shell-remains, sandstone concretions
Nummulites, black fragments, glauconite concretions
Ditto, with some paint impurity 400 x 392
Clayey rather coarse sand, abundance of shell, 405 400
sandstone concretions still observed
Clayey fine sand, casing material, contaminated 410 x 404
Strong clayey fine sand, less shell fragments, 415 x 406
casing material, cement plug rubber were still
present, sandstone concretions
Greengrey glauconitic strongly clayey fine sand 420 x 416
with few large and fine shell-remains
Greygreen glauconitic sandy clay, no more shell 425 x 417
fragments (Yd-formation?)
Clayey sand 430 418
Green silty fine sand, (casing material), with som 435 x 419
clay pieces, sandstone concretions and shell
fragments (impurity)
Greygreen sandy clay to silt with sandstone 440 x 425.5
concretions
Greygreen sandy clay, more compact, less sandstone 445 435
concretions
Ditto 450 444
Strong sandy greygreen clay 455 445.5
Greygreen sandy compact clay with few sandstone 460 x 450.5
concretions, shell fragments impurity
Greygreen strong clayey sand 465 455
Greygreen sandy clay 470 x 463
Greygreen plastic clay, rather sandy 475 x 468
Ditto 480 479
Greygreen compact clay, rather sandy and glauconitic 485 x 483.5
Ditto 490 489
Ditto 495 492.5
Greygreen clayey sand to silt 500 x 497
Greygreen sandy compact clay 505 501.5
Greygreen sandy compacter clay 510 x 504
Ditto 515 508.5
Ditto 520 x 511.5
Greygreen compact clay, less sand content 525 x 519.5
Ditto 530 526
Ditto, with some concretions 535 x 529
( Note : unsuccessful coring program at 538 M;
core bit was stuck at about 370 m, sample
from core bit shows Greygreen compact clay
with large shell pieces, concretions,
Base of Asse clay - transition to Lede
formation)
Greygreen compact clay, fraction of Pyrite, rich 540 538
on glauconite
Ditto 545 x 541.5
Greygreen silty to sandy clay 550 549
Ditto 555 549.5
Ditto, sandy clay with impurities 560 x 557
Greygreen compact clay, with glauconite 565 x 564
Ditto 570 569
Ditto 575 573
Practically no sample on the shaker, sand or 580 574.5
strongly sandy clay?
Greygreen sandy clay, still contaminated with 585 x 575
material from upper levels
Greengrey plastic clay, rather sandy, with lime 590 x 576
content (with HCl)
Strong clayey fine sand, abundance with lignite 595 x 579
en fine shell fragments
Darkbrown clayey fine sand (with a lot of clay
pieces from upper level, dominated by lignite and
very fine shell fragments (representative sample) 596 x 580
Darkgrey sandy clay, with plenty of shell fragments 600 x 597
and lignite
Lighter in colour, light greengrey sandy clay, marly 605 x 597.5
and less shell-remains
Clayey sand, marly, with abundant of lignite and 610 x 600.5
shell fragments (fine sand fraction)
Greengrey clayey sand, marly, abundant with shel 615 x 606.5
fragments and lignite
Ditto, less clayey, silty, with sandstone concretion 620 x 609
and marl impurities
Lightgrey clayey sand to sandy clay, lignite and 625 x 612
and shell-remain are still present (e.g. Turitella)
Lightgrey marly clay, with ligniet and shell-remain 630 x 616
Dark-greengrey compact clay, mix with marly clay 635 x 625
lesser content of lignite and shell-remain
Greygreen sandy and silty clay, again with shell 640 x 635
remain impurities
Ditto, colour is much lighter, silty 645 x 642
Lightgrey plastic compact clay 650 x 647.2
Ditto 655 652.1
Greygreen plastic clay, with hard claystone 660 x 656.5
Ditto 665 662
Greygreen plastic and compact clay 670 x 666
Mixing of green compact clay with lightgrey marl 675 670.5
Whitegrey marl, with impurities of Waterschei - 680 x 675
claystone
Ditto 685 680
Ditto 690 x 683.5
First sign of Cretaceous chalk cuttings, mix with 691 689
large pieces of Waterschei claystone and marl
of Gelinden
Yellow-white chalk, abundant of flintstone cuttings 691.8 x 689.5
in rectangular form, with clay and marl from the
upper level, casing material (Orp sand cuttings was
not observed so far)
Yellow-white chalk, full with clay material from 695 691.5
upper level (=first sample after tripping)
Calcarenite chalk with flintstone (Vroenhoven - 700 692
member), still with impurities of claystone,
lignite, Nummulite, Dentalium, and casing material
Ditto, with green hard claystone 705 x 695
Yellow-white chalk, calcarenite, with abundant of 710 x 703
of flintstone, still with green hard claystone,
marl, and lignite impurities
Ditto 715 713
----------------END VERTICAL SECTION-----------------------------------------
----------------START BUILD UP DEVIATION 1°/10 M-----------------------------
White chalk with flintstone, contaminated with 720 717
green claystone, full with grease and casing
material
Greywhite soft chalk, dominated by calcarenite, 725 x 722
with yellowish and grey flintstone, still
contaminated with darkgreen hard claystone, present
of fine sand fraction
Ditto, full with contamination of paint, clay, 730 725
grease
Ditto, with more grey flintstone, contaminated 735 x 728
Ditto, chalk fraction is finer, less flintstone 740 738.5
content, and less claystone contamination
Ditto, contain a lot of grey coloured flintstone 743 740.5
White tuff-chalk, soft, mixed with calcarenite 744 x 743
Fully contaminated sample with paints, grease, 745 744
claystones
White chalk, mix with calcarenite, fully 746 745
contaminated by green small claystone
White chalk, dominated by grey flintstone, mix 750 x 750
with calcarenite, contain a lot of claystone
from upper level
Fine milled (powdered) white chalk (due to slow 751 x 750.5
penetration rate - bit worn out), much less
flintstone content, still with claystone
Ditto 752 x 751
Ditto 753 x 752.5
---------change RB------------
Lightgrey fine calcarenite, with few white tuff 755 752.5
chalk, a lot of hard green claystone contamination,
grey marl, less flintstone (yellow and grey), with
casing material
Lightgrey calcarenite fraction chalk, still with 760 x 758
claystone, a lot of grey and black flintstones
Ditto, abundant of grey flintstone, rather milled 765
greychalk
Ditto, a lot of flintstone 766.3 766
-----------change RB------------
Lightgrey chalk with grey flintstone, few fine sand 768.5 767
fraction, hard darkgreen claystone, casing material
Ditto, less contaminated 770 x 767
Ditto, fine cuttings, more sand fraction, less 775 x 770.5
flintstone, less claystone contamination
Coarse whitegrey chalk-pieces (50) and black + grey 780 x 774.5
flintstone (50), less whitegrey marl, with a small
sandy fraction and some clay cavings.
Ditto, with fine glauconitic sand franction and 785 781.5
very few lightgreen marl
Ditto 787 783
Lightgrey Cretaceous chalk, abundant flintstone 790 x 786.5
(black and grey), rather marly
Lightgrey chalk with abundant of black flintstone, 795 x 792
some hard clay cavings, marly matrix
Lightgrey porous hard-chalk and whitegreyish marl, 800 x 796.5
abundant with black flintstone
Again grey chalk in grain, less dark flintstone 805 x 802
Ditto, with cavings of darkgreen hard claystone 813 806.5
and with black fintstone
Grey porous chalk, rather marly, very few black 815 x 812
flintstone
Again grey porous chalk with few black flintstone, 820 x 817.5
Grey porous chalk with very few black flintstone 825 x 823 822.5
and some hard clay cavings, casing material
Ditto, but in finer fraction 828.3 x 825 824.5
Fine whitegrey porous chalk, calcarenite, black 830 x 825.5 825
flintstone, contaminated with grease
Greywhite chalk with black flintstone 835 827.5 827
Grey porous chalk with fine milled white chalk, 840 x 833.5 833
with black flintstone
White chalk, marly or fine milled?; grey flintstone 845 x 837 836
claystone cavings
Grey hard chalk with fine milled white chalk and 850 x 843 842.5
grey + black flintstone
Fine milled white marly chalk with grey chalk, 855 x 847.5 846.5
plenty of grey + black flintstone
ditto, but more white marly chalk 860 x 856 855
Cavings, (first sample after tripping - lag time 867.6 861.5 860.5
about 25 min)
Cavings, drilled too fast (6 min/drill pipe) 870 861.5 860.5
Ditto 875 861.5 860.5
White chalk with cavings, drilled too fast 880 867 865.5
White chalk with plenty of grey flintstone and 885 x 875.5 874
cavings (e.i. hard green claystone)
White tuff-chalk with grey porous chalk, plenty of 890 x 885.5 883.5
grey but few black flintstones
Ditto, but rather marly (still with plenty of grey 895 x 888.5 887
flintstone), less clay cavings
Greywhite marly chalk with flintstone 900 x 895.5 893.5
Marly white chalk with flintstone and clay cavings 905 x 896 894
Marly white chalk with grey chalk, with grey (and 910 x 896.5 894.5
also some black + yellow) flintstones, clay cavings
Marly white and grey chalk with lightgrey flintstone 917 x 899.5 897.5
(less yellow and black flintstone), clay cavings
and casing material
Ditto, less marly (with Py?) 920 900.5 898.5
-------------- Drill string stuck in hole at 924m ---------------------------
Cavings of clay pieces, ROP 12 min/DP, lag time 930 914
24 min
Ditto 940 x 924 921.5
Ditto 945 x 939 936
White chalk, full with claystone cavings 950 x 942.5 939.5
White marly chalk (less clay cavings) 951.8 x 952 948.5
White chalk (fine) with plenty hard green clay 955 x 953.5 950
cavings and flintstone cavings
Very few white chalk, cavings of clay, sample 957.5 x 955 951.5
contain mainly mudcake
Coarse white soft marly chalk to marl with light- 960 x 957 953.5
grey hard chalk, mudcake (+ hard dark green clay,
few flintstone and sand with glauconite cavings)
Lightgrey hard chalk with white marl (very few 965 963 959
flintstone and clay cavings)
Ditto 970 x 968 964
Ditto 975 973 969
Marly whitegrey chalk with grey hard chalk 980 x 978 974
Grey marl with marly whitegrey chalk (some clay 985 x 983 979
cavings)
Ditto 990 988 983.5
Grey marl 995 x 992 987.5
Grey marl with dark brown soft clay (base of 998 x 994.5 990
Cretaceous?)
Grey marl with alot of black argillite (shale), 1000 x 997.5 993
also with brown soft clay
Ditto 1002 999.5 994.5
Ditto, plenty of brown clay and Namurian shale 1005 x 1000.5 995.5
Black shale (argillite), with marl cavings and 1010 x 1009 1003.5
darkbrown clay
Black shale with darkgrey sandstone (few chalk 1015 x 1014 1008.5
cavings)
Ditto, with very small amount of impure coal? 1020 x 1018 1012.5
Darkgrey sandstone with little black shale 1025 x 1022 1016
(some cavings of chalk material and mudcake)
Ditto 1030 x 1029 1023
Darkgrey sandstone with black shale 1035 x 1033 1027
(some chalk cavings)
Black shale (mudstone) and darkgret sandstone 1040 x 1037 1032
(chalk cavings and casing material)
Black shale (heterogenous pieces) and few dark 1045 x 1041.5 1035
grey sandstone (less cavings)
Mainly black shale 1050 x 1046.5 1040.5
Fine milled black shale with very few darkgrey 1055 x 1053.5 1046.5
sandstone
Fine black shale 1060 x 1057.5 1050.5
Black shale (few chalk cavings and csg. mat.) 1064 x 1060.5 1053
Black shale (mudstone) 1070 x 1068 1061
Ditto 1075 x 1073 1065.5
Ditto 1080 x 1076 1068
Black shale with calcite and pyrite 1085 x 1082 1074.5
Ditto 1090 x 1087 1079
Ditto, with cavings of chalk and flintstone 1095 1092.5 1084.5
Black shale with few sandstone 1100 x 1098 1089.5
Ditto, without sandstone 1105 1103.5 1094.5
Ditto, with grey sandstone 1110 x 1108 1099.5
Ditto, with few sandstone 1115 1113.5 1104.5
Ditto 1120 x 1117 1108
Cavings, first sample after tripping, mainly 1125 1124 1114.5
clay pieces
Black shale with sandstone, quartzic, cavings of 1130 x 1128 1118.5
chalk and clay
Ditto, but fine milled 1135 1133.5 1124
Ditto 1140 1138.5 1128.5
Grey shale with cavings of darkgreen clay and chalk 1145 1142 1132
Grey to darkgrey shale with (<10%) white to 1146.5 x 1143.5 1133.5
lightgrey sandstone, cavings of chalk and dark-
green clay piieces
Darkgrey shale with lightgrey sandstone and chalk 1150 1146.5 1136.5
cavings
Darkgrey to black shale (85%) with grey sandstone 1155 x 1152 1141.5
(10%) and some chalk pieces, green clay, and mudcake
Very fine milled darkgrey shale and less sandstone, 1160 x 1156 1145.5
less cavings
Fine milled + pieces of darkgrey shale and less 1165 1162.5 1151.5
sandstone (the sandstone was fine milled to sand)
with mudcake
Heterogenous darkgrey shale with darkgrey sandstone 1170 x 1167 1156
and mudcake; few chalk cavings and csg. mat.
Very fine milled shale and sandstone(?) + mudcake 1175 x 1172 1160.5
Ditto 1179.4 1176.5 1164.5
Ditto, in larger fraction 1185 1181.5 1169.5
Ditto, in fine fraction due to higher mudviscosity 1190 x 1186.8 1174.5
Ditto 1195 1192 1179.5
Black shale with sandstone and fine chalk cavings 1200 x 1198 1186
Sandy shale and sandstone, mainly in fine fraction 1205 1202.5 1189
Ditto 1210 x 1208 1194.5
Ditto, coaser fraction, few chalk cavings 1215 x 1212 1099
Ditto 1220 x 1216.5 1203
Black shale (no or very few sandstone), no chalk 1225 x 1222 1208
cavings
Ditto 1230 x 1227.5 1213.5
Ditto 1235 x 1232.5 1218
Ditto 1240 x 1236.5 1222.5
Ditto, with some chalk cavings, calcite, pyrite 1245 x 1241.5 1227
Black shale with calcite 1250 x 1249 1234
Black shale; very fine milled cuttings (due to 1255 1254 1238.5
new bit?)
Fine black shale with casing material 1260 1259 1243.5
Fine milled black shale with a lot of casing 1264 1263 1247.5
material and mudcake
Fine milled black shale with casing material 1266 1265 1249
Ditto 1268 1267 1251
Fine milled black shale with calcite or dolomite? 1270 x 1269 1253
and casing material
Ditto, calcimetry = 10% dolomite 1272 x 1271 1255
Ditto 1274 1273.5 1257
Black shale, with few calcite (dolomite?) 1276 x 1275.5 1259
calcimetry = 8% dolomite
Ditto, calcimetry = 8% dolomite 1278 x 1277 1260.5
Ditto, calcimetry = 10% dolomite 1280 x 1279.5 1263
Black shale with pyrite and more calcite, very 1282 x 1281.5 1264.5
few casing material, calcimetry = 10% dolomite
Black shale (indication of small lost circl.) 1283 x 1282.5 1265.5
Black shale, calcimetry = 40% dolomite 1284 x 1283.5 1266.5
(well circulation to observe real depth cuttings)
(note: partial loss of 1.5M3/hr was observed)
Black shale, casing material, calcimetry = 28% dol. 1284 COR x 1284 1267
5% pyrite
Ditto 1290 COR x 1290 1273
Black shale, some csg mat., 7% cc, 7% py 1294.7CORx 1294.5 1277
Ditto, 10% cc, 10% py 1296 x 1295.5 1277.5
Ditto 1297 x 1296.5 1278.5
Ditto 1298 1297.5 1279.5
Ditto 1299.5 1299 1281
Darkgrey to black shale with 5% cc, 15% py 1302 x 1301.5 1283.5
Ditto, with pieces of white material 1304 x 1304 1286
Ditto,little pieces of white material; with py 1305.8 1305.5 1287.5
and little cc
Ditto, with more py 1307 x 1306.5 1288.5
Ditto 1310 1309 1291
Black shale with pieces of csg and paint,py(5%) 1312 x 1310.5 1292.5
Ditto 1313 1312 1294
Ditto 1314 1312.5 1294
Ditto 1315 1313.5 1295
Ditto 1316 1314.5 1296
Ditto 1317 1315 1296.5
Ditto 1318 1316 1297.5
Ditto 1319 1317 1298.5
Black shale with py 1320 x 1318 1299.5
Grey limestone with some black shale
(at 1321.8 drilling break and mud loss);
corr depth is 1321.8; calcimetrie is 100% 1323.7 x 1322 1303
Grey limestone with very little shale;
calcimetrie = 100%; sample taken after 33 min.circ. 1323.7 1323.5 1305
Pale-grey limestone, little py and cc 1330 x 1329.5 1310
Dark-grey limestone and some pale-grey limestone;
H2S smell; calcimetrie = 97% 1335 x 1333.5 1314
Calcite(at least two generations) with some py and
chalcopy; less pale-grey limestone; some shale
(=cavings?) DRILLING BREAK = 14 min/m 1336.5 x 1335.5 1316
Pale-grey and dark-grey limestone (with some
shale cavings?) 1340 x 1339.5 1320
Ditto, little cc and py 1343 1342 1322.5
Pale-grey limestone with some shale cavings?;
little cc and py 1345 x 1344 1324
Pale-grey limestone, little cc and py 1347.5 1346.5 1326.5
Ditto 1350 x 1349 1329
Ditto 1352.5 1351.5 1331.5
Ditto 1355 x 1354 1333.5
Pale-grey limestone with some fine csg mat.,little
cc and some py? 1360 x 1359 1338.5
Ditto 1365 x 1364 1343
Ditto 1370 x 1369 1348
Pale-grey limestone, some csg mat.,some cc and py 1375 x 1374 1352.5
Ditto 1380 x 1377.5 1356
Much calcite and less pale-grey limestone
= DRILLING BREAK 14 min/m 1381 x 1379 1357
Pale-grey limestone, little amount of cc 1382.5 x 1381 1359.5
Ditto 1385 x 1384 1362
Pale-grey limestone with very little shale=
cavings; cc and py 1387.5 1386.5 1364.5
Ditto 1390 x 1389 1367
Ditto, more cc 1395 x 1393.5 1371.5
Ditto 1397.5 1396.5 1374
Pale-grey limestone with more cc and very little
shale cavings 1400 x 1398.5 1376
Ditto 1402.5 x 1401.5 1378.5
Ditto 1405 x 1404 1381
Ditto 1407.5 x 1406.5 1383.5
Ditto, after circulation = correct depth. TD= 1407.5 x 1407.5 1384.5
-----------------------------------------------------------------------------
STRATIGRAFISCHE INTERPRETATIE based on logs (and cutting description) :
-----------------------------------------------------------------------------
Top * basis * STRATIGRAFISCHE EENHEDEN
-----------------------------------------------------------------------------
0.00 - 51.50 Quaternary
0.00 - 25.00 'Komplex van de Kempen'
25.00 - 51.50 Merksplas Formation
51.50 - 682.00 Tertiary :
51.50 - 76.00 Lillo formation
76.00 - 165.00 Diest formation
165.00 - 314.50 Rupel group
165.00 - 304.00 Boom Formation
280.50 - 304.00 siltic base Boom clay
304.00 - 314.50 Bilzen Formation: Berg Member
314.50 - ? Maldegem Formation
314.50 - 318.00 clay
318.00 - 325.00 sand
325.00 - 344.00 clay
344.00 - 349.00 sand
349.00 - 370.00 Asse member (clay 1)
365.00 - 370.00 Bande Noire Layer
370.00 - ? Wemmel Member
Zenne group
? - 432.00 Lede Formation and Brussel Formation
432.00 - 576.00 Ieper group
432.00 - 462.00 Tielt Formation: Egem Member (Yd)
Kortrijk Formation
462.00 - 576.00 Ieper clay (Yc)
576.00 - 671.50 Landen group
576.00 - 600.00 Tienen Formation
576.00 - 600.00 Knokke Member
576.00 - 580.00 Landen Sand (L2,continent.)
580.00 - 584.00 clay
584.00 - 593.00 sand
593.00 - 600.00 clay
600.00 - 671.50 Hannut Formation
600.00 - 640.00 Grandglise Member (L1d+c)
640.00 - 671.50 Halen member and Waterschei Member
Group without name
671.50 - 686.50 Heers Formation
671.50 - 682.00 Gelinden Member
682.00 - 686.50 Orp Member
686.50 - 991.00 Cretaceous
686.50 - 767.00 Maastricht Formation
713.50 - 719.00 Lava equivalent (hard ground)
767.00 - 951.00 Gulpen Formation
767.00 - 780.00 Lanaye
780.00 - 830.00 (Lixhe-)Vijlen
830.00 - 873.50 Beutenaken chalk
873.50 - 899.00 Beutenaken marl
899.00 - 951.00 Zevenwegen
951.00 - 991.00 Vaals formation
951.00 - 974.00 upper
974.00 - 991.00 lower
Carboniferous
991.00 - 1319.50 Namur
991.00 - 1006.00 shale
1006.00 - 1015.50 sandstone
1015.50 - 1020.00 schiefer
1020.00 - 1047.50 cycle 1 coarsening upw.
1047.50 - 1052.50 cycle 2 fining upw
1052.50 - 1067.00 cycle 3 coarsening upw.
1067.00 - 1094.00 cycle 4 coarsening upw.
1094.00 - 1135.50 cycle 5
1135.50 - 1319.50 Chokier Formation
1319.50 - 1407.50 Dinant
(total depth)
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AUTEURS E. Maes, Lie Sun Fan, W. Gevaerts january 1990
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OPMERKINGEN
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Fractured zones in the Dinantian :
1320 - 1321.5
1323.5 - 1325.5
1337 - 1337.5
1342.5 - 1343
1346
1360 - 1361
1373.5 - 1374
1381 - 1383
1389.5 - 1390.5
1393 - 1394
Karstic zones in the Dinantian :
1327 - 1332
1333 - 1337
1348.5 - 1350
1361 - 1365
1365.5 - 1367
1378 - 1381
1383 - 1388.5
Lithified zones : Diest formation : iron sandstone
Rupel formation : septaria
Brussel formation : silicified sandstone
Upper zone of the Maastricht formation : silex
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BIJKOMENDE INFORMATIE OVER DE BORING
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16E176
The well DZH-14 is situated on the west side of the village center of Rijkevorsel, on the locality Korenblok-Heiveld along the Karreweg.
The Lambert coordinates of the wellhead are X = 175609.6
Y = 227355.4
Ground level elevation Z=+27.77 m from sea level.
All depths are referred from RTKB (rotary table kelly
bushing) as zero level which is +4.10 m from ground level or +31.87 m from sea level.
This well is filed by the B.G.S. as K.B. (borehole Campine basin) 202, archive no. 16E176 (IIIa).
Technical drilling scheme
1. Phase 17"1/2 : (12/12/89 - 14/12/89)
- Full hole rotary drilling RB Ø 17"1/2 to 49.8 m.
- Casing Ø 13"3/8, 48 lbs/ft BDS, set at 48.9 m.
- Cementation up to the surface performed by Halliburton
2. Phase 12"1/4 : (15/12/89 - 18/12/89)
- Full hole rotary drilling RB Ø 12"1/4 to 200.4 m.
- Open hole logging TNO (not complete, stuck at 107 m).
- Casing Ø 9"5/8, 40 lbs/ft BDS, set at 195 m (run by
Weatherford).
- Cementation up to the surface performed by Halliburton.
3. Phase 8"1/2 : (19/12/89 - 10/01/90)
- Full hole rotary drilling RB Ø 8"1/2 to 1245.5 m.
- Deviation build-up with Turbo-drilling RB Ø 8"1/2 from
715 m (Kick Off Point = KOP) to 828.4 m and drift correction
from 794.2 m to 861.5 m, performed by Geoservices.
- Conventional coring Ø 8"15/32 DB, core Ø 101 mm from
1245.5 m to 1250.5 m in the Namurian section.
- Open hole logging by Schlumberger.
- Casing Ø 7", 23 lbs/ft BDS, set at 1250 m (run by
Weatherford).
- Cementation up to the surface performed by Halliburton
4. Phase 6"1/8 : (10/01/90 - 21/01/90)
- Full hole rotary drilling RB Ø 6"1/8 to 1407.5 m TD
(exclude the coring sections).
- Conventional coring Ø 6" DB, core Ø 68 mm from 1284 m to
1290.65 m and from 1323.7 m to 1325 m in the Dinantian
reservoir.
- CBL-logging by Schlumberger at 1260 m.
- Open hole logging by Schlumberger and CGG (EVA tool).
- Borehole seismic (VSP offset and walk-away) by CGG.
- Liner Ø 5", K55, 15 lbs/ft VAM, run in to 1403 m
( by Weatherford)
- Cementation of the liner performed by Halliburton
- CBL-logging by Schlumberger
5. Well completion : (22/01/90 - 26/01/90)
- Perforations by Schlumberger
- Acidification by Halliburton
- Running in completion tubing Ø 2"7/8 and packers by
Weatherford.
Well-logging
1. TNO
At the end of the second phase of well DZH-14, an open hole logging was performed by TNO (NL) on 16/12/1989. The logging program was : SP, Caliper, Resistivity and Gamma-ray.
During the first attempt, the TNO tool got stuck at 48 m, just below the first casing shoe, therefore a check-trip was run. Circulation and rotation at 48 m and 66 m, reaming at 104 m, 106 m, 130 m to 170 m with 4T WOB were necessary. During the second logging attempt, the tool got stuck again at 107 m. It is believed that the weight of the TNO logging tool is too light to perform in a higher mud density well. Therefore, no open hole
logs were available from 107 m. to 200 m. This section was
covered by a Gamma-ray log through the casing.
2. Schlumberger
Log name Well DZH-14 (m) Well DZH-15 (m)
-------- -------------- --------------
* BGT-GR 175 - 1217.2 206 - 1252
1225 - 1405 1251 - 1381
---------------------------------------------------------------* DIT-SLT-GR-AMS 175 - 1217.2
GR (through the casing) 0 - 175
---------------------------------------------------------------* LDT-GR 175 - 1217.2
---------------------------------------------------------------* CBL-VDL-GR-CCL 75 - 1257.7 885 - 1264
1165 - 1403 1194 - 1389
---------------------------------------------------------------* BHC-GR 1225 - 1405 1251 - 1381
---------------------------------------------------------------* LDL-CNL-GR 1225 - 1405 1251 - 1381
---------------------------------------------------------------* NGS 25 - 1252
---------------------------------------------------------------* LDL-NGS-AMS 25 - 1252
---------------------------------------------------------------* DIL-BHC-NGS 206 - 1252
---------------------------------------------------------------* FMS-GR 206 - 600
---------------------------------------------------------------* PERFORATION LOG 1300 - 1403 1331 - 1378
---------------------------------------------------------------
BGT = Borehole Geometry tool
GR = Gamma-ray tool
DIT - DIL = Induction (resistivity) tool
LDT - LDL = Density tool
SLT - BHC = Sonic tool
CNL = Neutron tool
CBL - VDL = Cement Bond Log tool
NGS = Natural Gamma Spectrocopy tool
FMS = Formation Micro-Scanning tool
AMS = (used for BGT tool calibration)
3. VSP-borehole seismic and EVA-tool logging by CGG
A special sonic tool (EVA) was run in DZH-14 by CGG from 175 m to 1400 m (RTKB). This EVA-tool is very useful as an additional information for VSP processing.
A VSP borehole seismic was performed from 175 m to 1400 m (RTKB)
in well DZH-14 in order to obtain a velocity profile and to calibrate the subsurface seismic maps.
The geology of DZH-14.
The stratigraphical thicknesses after TVD correction are as
follows :
- Quaternary and top Tertiary 160.9 m
- Rupel group 149.5 m
- Maldegem group and zenne group 117.5 m
- Ieper group 144.0 m
- Landen group 95.5 m
- Heers formation 15.0 m
- Maastricht formatian 80.5 m
- Gulpen formation 180.5 m
- Vaals formation 39.0 m
- Andenne formation 139.5 m
- Chokier formation 175.5 m
The top of the Dinantian reservoir was found at 1319.5 m RTKB drilling depth or at 1269 m TVD from sea-level. The deviated thickness of the drilled section is 88 m. The major karstified zones were found at the interval of 1269 m to 1329.5 m TVD from sea-level. The acidification job was performed in the following zones : 1269 m - 1270.5 m, 1280.5 m - 1281.5m, 1341.5 m - 1344.5 m (all depths are TVD from sea-level).
DISTRIGAS WELL : DZH 14
: K.B. 202
: 16E 176
LOCATION : RIJKEVORSEL
OPERATOR : DISTRIGAS/B.G.D.
CONTRACTOR : FORAKY
DATE : 13 DECEMBER 1989 - 26 JANUARY 1990
DIAMETERS : 17"1/2 - 12"1/4" - 8"1/2 - 6"1/8
COORDINATES : X = 175609.6 Y = 227355.4
GROUND LEVEL : +27.76 FROM MSL (=Z)
TOTAL DEVIATED DEPTH : 1407.5 M RTKB
TOTAL VERTICAL DEPTH : 1384 M RTKB
SAMPLE REF. DEPTH : RTKB (= +4.10 M FROM GL).
