Introduction to p:IGI-3 Integrated Geochemical Interpretation Ltd. Hallsannery, Bideford, Devon EX39...

Introduction to p:IGI-3

Integrated Geochemical Interpretation Ltd.Hallsannery, Bideford, Devon EX39 5HE, UK

Database for compiling and

validating geochemical data

What does p:IGI do ?Database for compiling and

validating geochemical dataElegant graphing

capability with symbols by colour &

shape/size to aid interpretation

Elegant graphing capability with

symbols by colour & shape/size to aid

interpretationSupported by

extensive geochemical help

Supported by extensive

geochemical helpMapping facility for visualization of data

& statistics

Mapping facility for visualization of data

& statistics

Ability to easily export tabulated

data and graphics to other applications,

for efficient and consistent

presentations & reports

Layout of the p:IGI screen

Conventional Windows menu

and screen layout

Toolbars for most common

actions

Conventional Windows menu

and screen layout

Project workspace to

compile & view tables & graphs

Toolbars for most common

actions

Contents window with tabs for

graphs, tables etc.

Project workspace to

compile & view tables & graphs

Information line

Contents window with tabs for

graphs, tables etc.

Information line

Drawing options on lower toolbar

Data pages

P:IGI contains several pre-defined

pages for geochemical data (Default Pages)

Drag & drop page name onto workspace

User-defined pages

Five User Defined pages in addition

to the Default Pages

One with 100 columns, four each with 50

columns

Allows the user to define the

contents of each column

Columns accept text, or numerical

dataCan also define

equations for ratios and parameters

Columns accept text, or numerical

dataCan also define

equations for ratios and parameters

Save as a template for consistent

content

Column typesText columns

(pick lists available)Numeric columnsEquation columns

Calculating ratios Contents of equation columns

need to be calculated

Changing units

Reduce to 2decimal places

Convert to feet from meters

Graphs• A number of different graph types:

– XY plot– Histogram– Triangular plot– Multiparameter– Star plot– Profiles– XYZ (3-D) plot

• Created by user, or from “Autograph” templates

410 420 430 440 450 460

T-max (°C)

0

1000

2000

3000

4000

5000

6000

Bas

e-D

epth

(m

)

Typical surface intercept OIL WINDOW(Tmax = 435-455°C)

Rock-Eval Tmax vs Depth

LithologiesSandstoneSiltstoneSand/mudstMudstoneShaleCoalChalkMarlOther

S2 (kg/t)

0.0 - 2.0

2.0 - 5.0

5.0 - 15.0

15.0 - 30.0

30.0 - 50.0

50.0 - 500.0

Default Symbol

0 2 4 6 8 10 12

TOC (Wt%)

0

30

60

Fre

quen

cy

Total Organic Carbon 0-12 (TOC Wt%)

LithologiesSandstoneSiltstoneSand/mudstMudstoneShaleChalkMarl

Poor

Fair

Good TOC

Good TOCVery

(2-4%TOC)

(1-2%TOC)

(0-1%TOC)

(4-12%TOC)

0

10

20

30

40

50

60

70

80

90

100

St28Iso (%)

0102030405060708090100

St27Iso (%)

0

10

20

30

40

50

60

70

80

90

100

St29Iso (%)

Sterane Carbon Numbers with Interpretation

Strat Age (Ma)0.0 - 64.065.0 - 99.0100.0 - 143.0144.0 - 162.0163.0 - 187.0188.0 - 204.0205.0 - 244.0245.0 - 289.0290.0 - 322.0323.0 - 353.0354.0 - 416.0417.0 - 600.0No strat

%TOC (size)

0.0 - 1.0

1.0 - 2.0

2.0 - 4.0

4.0 - 8.0

8.0 - 12.0

12.0 - 35.0

35.0 - 99.0

No data

Plankton/Algal #

Mixed planktonic-bacterial

Mixed planktonic-land plant

Land plant - Coal Measures

Land plant - Tertiary coals $

Diatoms & ?bryophytes

$ + pre-Cambrian oils

# algae highly variable

0 12

TOC (% )

0 1000

HI (mg/gTOC)

0 300

OI (mg/gTOC)

0

1000

2000

3000

4000

5000

6000

Bas

e-D

epth

(m)

Source Rock Screening - Kerogen Type


LithologiesSandstoneSand/mudstSiltstoneMudstoneShaleCoalChalkMarlOther

0

20

40

60

80

100

0

20

40

60

80

100

0 10 20 30 40 50 60 70 80 90 100

0

10

20

30

40

50

60

70

80

90

100

08

1624

3240

4856

6472

8088

96

020

4060

80100

0

20

40

60

80

100

Maturity related biomarkers


Sample TypeCuttingspCuttingsCoreSWCDSTRFTOther

1 = C29 iso-/regular sterane (%)2 = C27 diasteranes (%)3 = C29 sterane 20S/20R (%)4 = C27 terpane Ts/Tm (%)

5 = C29 terpane C29Ts/C29Tm (%)

2

3

45

1

6

7

6 = C21 + C22/ other Mono-Aromatic Steroids (%)

7 = C20 + C21 /other Tri-aromatic steroids (%)

0

10

20

30

40

50

60

70

80

90

100

Pea

k va

lue

nC12

nC13

nC14

nC15

nC16

nC17

nC18

nC19

nC20

nC21

nC22

nC23

nC24

nC25

nC26

nC27

nC28

nC29

nC30

nC31

nC32

nC33

nC34

nC35

nC12 - nC35 profile


Del13C Sats

-39.0 - -32.0

-32.0 - -30.0

-30.0 - -28.0

-28.0 - -27.0

-27.0 - -26.0

-26.0 - -24.0

-24.0 - -22.0

-22.0 - -20.0

-20.0 - -10.0

No data

Menus of common graphs, mostly with

overlays for interpretation

Autographs

Key to interpretation

al overlay

Overlays can be made and saved for any

graphs

Key to interpretation

al overlay

Visual browser

Visual browser allows the data for

individual samples to be examined

Visual browser allows the data for

individual samples to be examined

Drag box around samples of

interest

Box contains plotted dataBox contains plotted data

All data for this sample can be seen

All data for this sample can be seen

Can jump between samples in selection

Graph overlays

pIGI has pre-defined Autographs with data overlays

to help interpretation

Users can create their own overlays to meet their own

needsOverlays can be

modified using the tools on this toolbar

Palettes – Colours & symbols

Users can make their own graphs from Graph menu

Create a graph (e.g.

XY plot)Create a

new colour palette

E.g. to show lithologiespIGI can use

different colours and symbols to aid

interpretation

Colour palettesSymbol palettes

Palettes – Colours & symbols

Create a new symbol palette

Create a new symbol palette

E.g. to show organic richness

Allowing more information to be drawn from the

data

Data input to p:IGI

p:IGI files can be populated in various ways– Manual entry (typing, autofill, cut & paste)– Importing from an existing p:IGI file– Importing from an ASCII file (.csv or .txt)

Manual input – Pick lists for text

Right mouse click

Able to select from existing entries in this column, or pre-defined

text strings

Manual data input

Open a new project workspace

Open application (e.g. Excel)

Copy & paste data

Automatic data import

Able to import data from other

applications (e.g. Excel)

• Comma-separated (.csv)• Other formats

Select file to import

Link data in source file to specific

columns in destination p:IGI file

Select file to import

Save import settings as a template for

automatic import of other similar files

Link data in source file to specific

columns in destination p:IGI file

Example: Additional data obtained later

needs to be compiled

Merging p:IGI-3 files

Link data in both files to match identical

samples

Test merging of files

Check results before actually merging files

Sample sets

Typically view the whole data

seti.e. “All

samples”But in large data sets trends for

specific groups of samples can

be obscured

Typically view the whole data

seti.e. “All

samples”

Sample sets are easily defined by

texte.g. Ammonite

zone

Created a subset of samples for each ammonite zone

Drag & drop sample set onto

graph

Shows only a subset of samplesIn this case a single

ammonite zone

Sample sets are easily defined

• By text (e.g. well name, ammonite zone)

• By numeric range (e.g. TOC content >12%)

• From graphs• From tables

Spreadsheet settingsCan edit an

existing spreadsheet

Default or custom pages

Change colours

…

…and fonts

Various other aspects of appearance, and “automatic”

data validation

Data and window overlays

2 types of overlay…

Window overlay

Data overlay

Saving template for Autograph

Save settings as a template

Save in p:IGI Resource

folder (Autographs)

Additional p:IGI features

Peak MeasureSimple statistics

Background DataMaps

Rules and RuleSetsWell ManagerPCA Module

PeakMeasure

You can draw a baseline

Mark the top of each

peak

Statistics

Easily generate simple

statistics from graphs

Breakdown by symbol colour

(lithostratigraphy) in this case

Statistics can be copied out by clipboard

Background Data

Background Data: Attach

another data set in the

backgroundp:IGI-3 is

provided with a global data set from published

work

General underlying trend seen in “World

Dataset”

Attach a different data set for comparison:

Showing data on maps

Although not a mapping package, p:IGI has a range of maps on which to show

data• Additional maps can be defined

by the user

Statistics or data can be shown

Display a map using Map

button

Can display statistics or data

for individual sites

Here data (Ro%) are shown both by

circle size and colour

Statistics:Mean Ro in well

(green) vs. overall mean Ro (red)

• Rules can be defined for consistent interpretation of data

Rules & rule sets

E.g. All samples with HI > 250 and S2 > 15 are here classed as “rich oil-prone source

rocks”

Define individual rules of rule set

Combine them to make rule set for

interpretation

Define individual rules of rule setDefine individual rules of rule set

Output of the rule is automatically entered in the spreadsheet

Well Manager

Well Manager allows well information

including stratigraphy, to be imported into

p:IGIPopulate with wells,

each with information

Stratigraphy data held

here

Principal Components Analysis

Copy and paste block of data from

p:IGI

Replace null cells and zero

values

Options to normalise data

Option to autoscale

Option to centre around

the meanRun PCA

Results of PCA: Scores, loadings,

eigenvalues

Scores and loadings plots can be made

Developments in p:IGI• Current (2009) version is v.3.2

– New multivariate statistics (PCA)– Increased number of colours for palettes– New “All formulae” page– Improved Well Manager function– New maps with world coverage– Extended Geochemistry Help

• Longer term re-design (release 2010)– Relational database structure– Mapping capability (input/output to/from ARC)

Available support• Inbuilt help menus (software & geochemical)• Documentation (in pIGI_3/Documentation folder)

– pIGI_3 – Software Manual– pIGI_3 – Geochemical Manual– pIGI_3 – Getting Started– pIGI_3 – World Data References– ReadMe

• IGI website and Forum– http://www.igiltd.com/pigi3.htm– http://www.igiltd.com/Forum/

• Contact IGI – [email protected]

Introduction to p:IGI-3 Integrated Geochemical Interpretation Ltd. Hallsannery, Bideford, Devon EX39...

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