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GEOL 407 Petroleum Geology, Spring 2020
Constructing a Reference Section:
The first step in evaluating an area with regard to petroleum production is to assess the current status of
a field or region. In this exercise we will be looking at production from the Plaza-Wabek fields. Find the
file that has the well data for the Wabek Field and import it into your Petra project. You could at this
point make a structure contour map of the Mississippian Frobisher-Alida interval (M-FA) and get a sense
as to the trapping mechanism. However, this would not tell us anything about the stratigraphic interval
that contains the oil. Obviously there are a lot of producing wells in this field so it would make sense to
find out where in these producing wells the oil is present. The easiest way of doing this would be to pick
a well from near the center of the field, pull the logs and plot the interval that was perforated and put
into production. I selected the following well for this purpose. Print page 3 and do the following:
A) Use the log tops listed on the scout ticket to mark the position of any listed formation tops.
B) Use the information on the scout ticket below to plot on the log the depth interval that was
perforated (Perfs:), the interval that was drill stem tested (DST) and the interval that was cored.
C) Look at the logs and subdivide the section in terms of lithology.
D) Provide an interpretation of the lithology from the logs and from the core description the
depths that are most likely the source of oil that this well produced. Use the lithology symbols
shown below (not all of these symbols are needed).
E) Examine the core report and determine whether or not there is a oil-water interface.
F) Fill in the central depth track with your interpreted lithology using the symbols.in the attached
Graphic Lithology Key
G) Assign informal names (your choice) to these different rock types.
H) Look at the perforated interval and the corresponding lithology. Describe the pay interval in
terms of rock type and porosity. This should be saved and included in the final report for the
Remember that neatness, completeness and accuracy count.
When done scan and submit your completed log to the Assignments section of Blackboard.
As we work into the final project you can use this log as the key for how you define the stratigraphic
component of oil production in this field.
NDIC File No: 12654
NDIC File No: 12654 API No: 33-061-00384-00-00 County: MOUNTRAIL CTB No:
Well Type: OG Well Status: IA Status Date: 8/15/2019 Wellbore type: VERTICAL
Location: SWNE 16-152-88 Footages: 1991 FNL 2035 FEL Latitude:
47.986887 Longitude: -101.944861
Current Operator: FOUNDATION ENERGY MANAGEMENT, LLC
Original Operator: HOME PETROLEUM CORP.
Current Well Name: STATE 32-16
Original Well Name: STATE #32-16
Elevation(s): 2060 KB Total Depth: 7590 Field: PLAZA
Spud Date(s): 6/3/1989
Digital or Image Log(s) available: BCS 657KB, CBL 2.3MB, CND 1.1MB, CYB 225KB,
K-P 1530 K-GH 3714 K-M 4119 K-IK 4430 J-S 4796 J-R 5205
T-S 5754 PM-EBA 5995 PN-T 6251 M-EBS 6368 M-KL 6630 M-MD 6795
M-MDR 7082 M-MDLS 7140 M-MDFA 7404
Casing String(s): 9.625" 803' 5.5" 7588'
Pool: MADISON Perfs: 7378-7396 Comp Dt: 6/25/1989 Status: AL Status Dt:
6/25/1989 Spacing: U
Cumulative Production Data
Pool: MADISON Cum Oil: 257531 Cum MCF Gas: 150176 Cum Water:
258327 [Interactive Performance Curve] [PDF Curve]
Production Test Data
IP Test Date: 6/25/1989 Pool: MADISON IP Oil: 321 IP MCF: 100 IP Water: 0
DST: 7404-7429 Recovery: 3050' MUD CUT WATER CUSHION & WATER SAMPLER: 0.75 SCF GAS, 40 CC OIL, 1980 CC WATER
Cores and Samples
Type: LS Top: 7381 Bottom: 7396 Formation: M-MD
Type: LS Top: 7399 Bottom: 7418 Formation: M-MD
Type: LS Top: 7421 Bottom: 7425 Formation: M-MD
Well Type Definitions
AGD Acid Gas Disposal
CBM Coal Bed Methane
Dump Flood Injector
Dump Flood Injector/Producer
GASC Gas Condensate
GASD Dry Gas
GASN Nitrogen Gas Well
Oil & Gas
SWD Salt Water Disposal
Abandoned (Shut-In > 12 Months)
DRY Dry Hole
Inactive (Shut-In >= 3 and <= 12 Months)
Inactive Well Waiver
Permitted Location to Drill
LOCR Permitted Reentry of Plugged
Not Completed (Drilled to TD, Awaiting Completion)
NCW Not Completed Waiver
Plugged and Abandoned
Permit Now Cancelled
Permit Now Suspended
Temp Abandoned, SoD (Intermediate Casing Set)
Temporarily Abandoned - Observation
TASC Temp Abandoned, SoD (Surface Casing Set)
TATD Temp Abandoned, Drilled to Total Depth
Log Formation Tops
TY-BCHR TERTIARY-BULLION CREEK-HARMON BED
TY-BCHN TERTIARY-BULLION CREEK-HANSON BED
CRETACEOUS-PIERRE FM.-JUDITH RIVER SAND
CRETACEOUS-PIERRE FM.-EAGLE SAND
CRETACEOUS-INYAN KARA FM.
PERMIAN-ERODED BROOM CREEK-AMSDEN FM.
PERMIAN-BROOM CREEK FM.
MISSISSIPPIAN-ERODED BIG SNOWY GROUP
MISSISSIPPIAN-BIG SNOWY GROUP
M-MDUN MISSISSIPPIAN-MADISON GROUP UNCONFORMITY
M-MDLS MISSISSIPPIAN-BASE OF LAST SALT
M-MDFA MISSISSIPPIAN-FROBISHER-ALIDA INTERVAL
M-MDFY MISSISSIPPIAN-FRYBURG MARKER
M-MDSA MISSISSIPPIAN-STATE "A" MARKER
M-MDLP MISSISSIPPIAN-LODGEPOLE FM.
DEVONIAN-THREE FORKS FM.
DEVONIAN-SOURIS RIVER FM.
DEVONIAN-DAWSON BAY FM.
SILURIAN-CEDAR LAKE MEMBER
ORDOVICIAN-RED RIVER FM.
ORDOVICIAN-WINNIPEG ROUGHLOCK FM.
ORDOVICIAN-WINNIPEG ICEBOX FM.
ORDOVICIAN-BLACK ISLAND FM.
Log Type Codes
Array Induction Gamma
Borehole Compensated Sonic
Cement Bond Log
Corelation Gamma Ray
Compensated Neutron Density
DGWD Directional Gamma While Drilling
Dual Induction Electric
Dual Induction - Laterolog
Drll Time - Mud Log
Drill Time - Samples
DTSM Drill Time - Samples - Mud Log
Gamma Ray Acoustic
Gamma Ray Density
Gamma Ray Neutron
Gamma Ray Temperature
Gamma While Drilling
HCAL Horizontal Caliper
Induction Electric Log
Integrated Porosity Lithology
Laterolog Gamma Ray
Magnetic Resonance Imager
MWD Measure While Drilling
Name: Fonda Mvono Edzang
Getting started in Petra
Start by opening IHS Petra program. In the Petra Main window select Start Petra in Private Mode.
Select Make a NEW Project, click alright. Enter the task NAME and EXPLANATION, and
afterward spare the venture in the ideal catalog. Petra Main window will open.
Importing wells and well data from databases into Petra
Petra doesn't contain any well information. To have the option to relate and outline tops, the well data
should be imported from the databases like AccuMap, MJ Systems, and NDIC.
Importing well lists into Petra
In Petra Main window, select Undertaking in the highest tab menu. Under Task pick Import, at that
point Accumap PETRA Well File.
The Import PETRA AccuMap File will show up. Acknowledge the default settings by
The default organizer that Petra will open doesn't contain the well records. Rather go to: PC
→ Local Disk (C :) → AccuMap. In AccuMap organizer, find wanted well list that is in PXP
File group. Select that well list.
When the import is finished, the subsequent Petra Main window. Presently Petra contains
precisely the same measure of wells as does your well list record in AccuMap.
By tapping the guide symbol in the Petra Main window you can see wells in map window.
From the Petra MAP window, the wells can be chosen, and cross-segments can be made for
future formation tops connection.
Importing well files from
Spreadsheets containing well information, downloaded from either NDIC or MBOGC, can be
imported into Petra by choosing Venture in the highest tab menu in Petra Main window. Under
Undertaking pick Import, at that point Nonexclusive ASCII (Spreadsheet)
When the Import Well Data From Tabular File Format window shows up, follow every tab to
populate Petra with data from the spreadsheet
Importing well logs into Petra
The well list imported from AccuMap just contains the well header information, and fills in as an
unfilled vessel intended to be loaded up with data from various sources. The well data that this task is
centered around is well log raster's. Well log raster's can be gotten from NDIC for North Dakota and
from Montana Board of Oil and Gas for Montana. Well log raster's can likewise be acquired for the
two states from the MJ Systems.
Importing well logs from MJ Systems:
To import well log raster's from MJ Systems, select Venture in the highest tab menu in Petra
Main window. Under Task pick Import, at that point Raster Logs From, lastly MJ Logs
Exported From LoggSleuth.
The Cluster Import MJ Systems Calibrated Raster Log window will show up and request that
you select at least one .REG records to stack. Snap Select Files… button.
When the Select MJ Logs to Import (REG Files) window shows up, explore to the organizer
where you spared the fare record structure the Group Export in LoggSleugh.
After the .REG record is stacked, click Import. Note: just the well log raster's coordinating the
wells in the task will be stacked.
Importing well logs from NDIC
To import well log raster's from NDIC, select Task in the highest tab menu in Petra Main
window. Under Task pick Import, at that point Raster Logs From, and Uncelebrated Toffies.
Note: Make sure that the API of the raster you wish to import from NDIC matches the API of
the well in Petra venture.
Correlating formation tops from well logs in Petra
After the well logs have been imported into Petra, you can begin associating formation tops in Petra.
Select Wells tab on the highest tab menu. Pick Select on the highest priority on the rundown.
Select Wells By Data Criteria.
After Select Wells By Data window shows up, click on the in addition to button by the Logs.
When the Logs alternative extends, click on the in addition to button by Raster Logs, when it grows,
pick Adjusted Rasters, and press Acknowledge on the correct upper corner.
Next, the Select Wells With Raster Log Images window will show up. Under Raster Logs
tab in the Search Method, acknowledge the default alternative Discover Wells With ANY