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Ajhil at 11:20, 19 July 2017

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__NOTOC__
{{OR/17/037}}
<center>
{| class="wikitable"

|+ Table 12    Two stratigraphic interpretations for the 2 wells studied and some nearby wells. All depths in metres
| colspan="5" |
| ! scope="col" style="width: 200px;" | '''Borehole'''
| colspan="2" | '''Kemira 1'''
| colspan="2" | '''Ince Marshes'''
| colspan="2" | '''Morley Bridge'''
| colspan="2" | '''Collinge'''
| colspan="2" | '''Hale'''
| colspan="2" | '''Lovel's Hall'''
|- style="vertical-align:top;"
| ! scope="col" style="width: 300px;" colspan="5" |
| '''Easting (m)'''
| colspan="2" | 347586
| colspan="2" | 346211
| colspan="2" | 346181
| colspan="2" | 341429
| colspan="2" | 347077
| colspan="2" | 347964
|- style="vertical-align:top;"
| ! scope="col" style="width: 300px;" colspan="5" |
| '''Northing (m)'''
| colspan="2" | 376421
| colspan="2" | 376439
| colspan="2" | 371455
| colspan="2" | 371112
| colspan="2" | 383134
| colspan="2" | 384935
|- style="vertical-align:top;"
| ! scope="col" style="width: 300px;" colspan="5" | '''Well top short name and explanation'''
| '''Interpreter'''
| NS
| CW
| NS
| CW
| NS
| CW
| NS
| CW
| NS
| CW
| NS
| CW
|- style="vertical-align:top;"
| OD level
| colspan="5" | Ordnance datum
| 8.99
| 8.99
| 14.33
|
| 17.22
|
| 14.8
|
| 9.79
|
| 12.8
|
|- style="vertical-align:top;"
| Bromsgrove
| colspan="5" | Bromsgrove Sandstone Formation
| style="background-color: #63aeed;" | 39
| style="background-color: #63aeed;" | 39
|
|
|
|
|
|
|
|
|
|
|- style="vertical-align:top;"
| Sherwood
| colspan="5" | Sherwood Sandstone Group
| 281
| 281
|
|
|
|
|
|
|
|
|
|
|- style="vertical-align:top;"
| TSZ/?KDM
| colspan="5" | Kidderminster Formation, conglomerate, pebble beds.
| 523
| 523
|
|
|
|
| 60
|
| style="background-color: #63aeed;" | 30
|
| style="background-color: #63aeed;" | 36
|
|- style="vertical-align:top;"
| MM/Bold
| colspan="5" | Manchester Marls Formation, Bold Formation
| 618
| 618
|
|
| style="background-color: #63aeed;" | 22
|
| 165
|
| 91
|
| 100
|
|- style="vertical-align:top;"
| CS
| colspan="5" | Collyhurst Sandstone Formation
| 738
| 738
| 200
|
| 56
|
| 233
|
| 268
|
| 165
|
|- style="vertical-align:top;"
| UVAR
| colspan="5" | Variscan unconformity
| 1042
| 1042
| 272
|
| 526
|
| 848
|
| style="background-color: #ffff3c;" | 557
|
| 344
|
|- style="vertical-align:top;"
| Salop
| colspan="5" | Salop Formation
|
|
|
| 200
| 526
|
| 848
| 870
|
| 30
|
| 344
|- style="vertical-align:top;"
| Halesowen
| colspan="5" | Halesowen Formation
| 1042
| 1042
| 272
| 398a
| 700
| 786b
| 930
| 1012c
| 557
| NP
| 400
|
|- style="vertical-align:top;"
| Etruria
| colspan="5" | Etruria Formation (ETM)
|
|
|
|
|
|
|
|
| 668
| Npe
| 599
| NP
|- style="vertical-align:top;"
| West C
| colspan="5" | Westphalian C. CW lists Pennine Upper Coal Measures Formation (PUCM)
| 1221
| NP
| 331
| NP
|
|
|
|
|
|
| 675
| style="background-color: #ffff3c;" | 700g
|- style="vertical-align:top;"
| West B
| colspan="5" | Westphalian B. CW lists Pennine Middle Coal Measures Formation (PMCM)
| 1248
| NP
| 548
| NP
| 969
|
| 1172
| 1169d
| 708
| NP
| 741
| 795h
|- style="vertical-align:top;"
| West A
| colspan="5" | Westphalian A. CW lists Pennine Lower Coal Measures Formation (PLCM)
| 1401
| 1079
| 700
| 582
| 1078
|
| 1256
|
| 745
| 700f
| 933.1
|
|- style="vertical-align:top;"
| MG
| colspan="5" | Millstone Grit Group (MG)
|
| 1432
| 944.9
|
|
|
|
|
| 1124
|
|
|
|- style="vertical-align:top;"
| CRAVEN GP
| colspan="5" | Craven Group
|
|
|
| 1276
|
|
|
|
|
|
|
|
|- style="vertical-align:top;"
| TD
| colspan="5" | Total depth: deepest well penetration depth
| 1438
| 1438
| 1577
| 1577
|
|
|
|
|
|
|
|
|- style="vertical-align:top;"
| WAWK
| colspan="5" | Warwickshire Group (Calculated from depths West B-UVAR)
| 205.6
|
| 276
|
| 443
|
| 324
|
| 151
|
| 397
|
|- style="vertical-align:top;"
| PT
| colspan="5" | Permian-Triassic (Calculated from depths UVAR-top of log depth)
| 1003.4
|
| 272
|
| 504
|
| 788
|
| 527
|
| 308
|
|}
'''''Table notes:''' NS = Nigel Smith (partly chronostratigraphic), CW = Colin Waters (lithostratigraphic). Blue shading indicates the top of the log, yellow indicates a fault. Table notes by CW: a Base of red beds; b At marked change in GR log & appearance of red beds; c At big change in GR & LD logs & near transition to red beds; d Similar to NS interpretation; e Salop above reddened PMCM; f In part reddened; g Top PUCM at fault at 700 m- big change in GR log; h Top PMCM taken at 795 m at Cambriense MB. Base West B would be lower.''
</center>

In addition to the two stratigraphic interpretations shown in Table 12, interpretations were also available from the company composite log plots or end of well reports. These data were considered during the reinterpretation presented in Table 12. They are listed below in Table 13 and shown, together with those from Table 12, in the output plots for this study ([[Media:OR17037fig2.jpg|Figure 2]] and [[Media:OR17037fig9.jpg|Figure 9]]) for ease of comparison between the alternate interpretations.

Nigel Smith’s (NS) partly chronostratigraphic interpretations were selected for use during this study. Statistical summaries of the petrophysical results were output over these formation intervals. Note that the petrophysical interpretation software (IP) requires a formation top and base to be defined, within the available data range. This means the actual tops and bases reported in the tables throughout this report may show these slightly amended formation tops and bases from the NS version reported in Table 12. The values are summarised below in Table 14.

<center>
{| class="wikitable"

|+ Table 13    Stratigraphy taken from the company composite logs or end of well reports. In addition, Coal seam depths were taken from the End of Well Report, these are shown in Table 10. For explanation of the formation codes, see Table 12
| colspan="2" rowspan="2" |
| colspan="2" scope="col" style="width: 150px;" | '''Kemira 1'''
| colspan="2" scope="col" style="width: 150px;" | '''Ince Marshes 1'''
|- style="vertical-align:top;"
| '''Top'''
| '''Base'''
| '''Top'''
| '''Base'''
|- style="vertical-align:center;"
| rowspan="7" scope="col" style="width: 150px;" | '''Company-reported stratigraphy'''
| SSG
| 24.4
| 1042.4
| 4.3
| 277.4
|- style="vertical-align:top;"
| Halesowen
|
|
| 277.4
| 397.8
|- style="vertical-align:top;"
| UCM
| 1042.4
| 1152.1
| 397.8
| 710.2
|- style="vertical-align:top;"
| MCM
| 1152.1
| 1274.1
| 710.2
| 944.9
|- style="vertical-align:top;"
| LCM
| 1274.1
| 1438.0
|
|
|- style="vertical-align:top;"
| MG
|
|
| 944.9
| 1280.2
|- style="vertical-align:top;"
| CRAVEN GROUP
|
|
| 1280.2
| 1577.0
|}
</center>

<center>
{| class="wikitable"

|+ Table 14    Stratigraphy loaded into interpretation software for this study and depth ranges of outputs. For explanation of the formation codes, see Table 12
| colspan="2" rowspan="2" |
| colspan="2" scope="col" style="width: 150px;" | '''Kemira 1'''
| colspan="2" scope="col" style="width: 150px;" | '''Ince Marshes 1'''
|- style="vertical-align:top;"
| '''Top'''
| '''Base'''
| '''Top'''
| '''Base'''
|- style="vertical-align:center;"
| rowspan="3" | '''Software outputs'''
| Plot format output:
| 25
| 1448
| 350
| 1460
|- style="vertical-align:top;"
| Las data output:
| 30
| 1445
| 327
| 1458
|- style="vertical-align:top;"
| Actual interp data interval:
| 32
| 1433
| 368
| 1452
|- style="vertical-align:center;"
| rowspan="10" scope="col" style="width: 150px;" | '''Formation interval in software (modified from NS, Table 12)'''
| Bromsgrove
| 39
| 281
|
|
|- style="vertical-align:top;"
| Sherwood
| 281
| 523
|
|
|- style="vertical-align:top;"
| TSZ_or_KDM
| 523
| 618
|
|
|- style="vertical-align:top;"
| MM_Bold
| 618
| 738
|
|
|- style="vertical-align:top;"
| CS
| 738
| 1042
|
|
|- style="vertical-align:top;"
| Halesowen
| 1042
| 1221
|
|
|- style="vertical-align:top;"
| West C
| 1221
| 1248
| 368
| 548
|- style="vertical-align:top;"
| West B
| 1248
| 1401
| 548
| 700
|- style="vertical-align:top;"
| West A
| 1401
| 1433
| 700
| 945
|- style="vertical-align:top;"
| MG
|
|
| 945
| 1452
|}
</center>
[[Category: OR/17/037 Petrophysical interpretation of selected wells near Liverpool for the UK Geoenergy Observatories project | 10]]

OR/17/037 Appendix 3 - Stratigraphic interpretations - Revision history

Dbk: 1 revision imported

Ajhil at 11:20, 19 July 2017