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BP Workshop

July 17, 2001


GEMINI

Geo
-
Engineering Modeling

through INternet Informatics


by


John Victorine and Lynn Watney

Kansas Geological Survey

Lawrence, KS

GEMINI
G
eo
E
ngineering
M
odeling
through
IN
ternet
I
nformatics
Application of web-based
analysis software
to petroleum databases
of logs, rock properties,
and fluid production.
A 3-year DOE contract
(Fall, 2000 - 2003)
CRINC
GEMINI PROJECT TEAM
Lynn Watney and Tim Carr
(petroleum geologists),
John Victorine (lead
programmer),
Saibal Bhattacharya (petroleum engineer),
John Doveton and Bill Guy (log
petrophysicists), Alan Byrnes (core
petrophysicist), Geoff Bohling (program
designer),Melissa Moore (data manager), Kurt
Look and Glen Gagnon (systems
programmers), David Collins (correlator).
Participating companies
Pioneer
Vastar
MULL
Marty DuBois (petroleum geologist)

Est. 1995

2001

POSC
-
Caesar

Significance:




Technical innovations



Keep Kansas competitive



Web
-
based business transactions



Incubate entrepreneurial teams



Optimize time and funds



Produce quantitative results



Increase integrated studies



Improve success

GEMINI Framework

WELLBORE
INFORMATICS
*petrophysical analysis
*well performance analysis
*PVT calculator
*DST analysis
*relative permeability
& capillary pressure modeling
*synthetic seismogram
Gemini
PROJECT AREA
*petrophysical mapping
*cultural mapping
MAPPING
FLUID CATALOG
*oil
*gas
*water
BOAST
RESERVOIR SIMULATOR
*cross-section plot
*correlator
*volumetrics calculator
ROCK CATALOG
*core pictures
*petrography
*sedimentology
*core petrophysics
KHAN
(
Kansas Hydrocarbon
Association Navigator)
Gemini (Geo
-
Engineering Modeling through Internet Informatics) is an interactive, integrated Website

designed to construct real
-
time geo
-
engineering reservoir models. Information assembled form the Website

or uploaded by the client (one person or a team) will be analyzed with an extensive suite of web
-
accessed

analytical software using intelligent interfaces and tutorial support to accomplish project development.

Project can range from regional to local and span problems from complex to simple.

Gemini

Web Programming


Java Applets


Graphical User Interfaces


Java Servlets


Bridge between Applets and Database & Files


ORACLE Database & Electronic Files


Well Header & Core Library Database Tables


Digital LAS Files

Gemini

User/Project Area Java Applet


Gemini User Creates Personal Work Area
on Kansas Geological Survey’s Database.


Gemini User Identifies Region of Interest,
i.e. Oil & Gas Well Location and Formation


Gemini User Selects Oil & Gas Wells.


Gemini User Saves their Data and Work in
Kansas Geological Survey’s Database.

Gemini

Geo
-
Engineering Java Applets


Well Level Analysis


PfEFFER


DST


Production


Well Rock
-
Petrophysics Profile


Field Level Analysis


Mapping


Cross Section


Volumetrics


Material Balance


Rock Catalog


Fluid Catalog


LAS Plotting

Gemini

Java Servlets

Gemini

Examples


User/Project Applet



LAS Plot Applet



PfEFFER Applet



Rock Catalog Applet

Gemini

User/Project Applet
-

User Login Panel

http://www.kgs.ukans.edu/Gemini/jrv_test/Gemini.html

Gemini

User/Project Applet
-

Project Panel

Select map variable, select area or

zoom into well, select well(s) for analysis

-102
-101
-100
-99
-98
-97
-96
-95
3
7
3
8
3
9
4
0
4576 LAS files at the Kansas Geological Survey - 5/2/01
Current digital (LAS) log database

Multi
-
well Analysis
-

Volumetrics

Select Regions (Zone) and wells of interest


Volumetrics
-

supply grid cell and B
o

displays and calculate OOIP


Tab for each zone

Toggle between

calculated values

Using current

default gridding

algorithm

Petrophysics Option

Plot/Print

LAS File

LAS
--

select track, LAS file, curves, and database for annotation

GR

Res

Ten/Rxo/RT

DB Info/Tops

PfEFFER Analysis

Select PfEFFER icon
--

Plot log curves to help identify zones and

calculate parameters

Select PfEFFER

PfEFFER
--

Define zones and depth intervals of interest

Gemini

PfEFFER Applet
-

Control Panel

Gemini

PfEFFER Applet
-

Parameters Panel

Gemini

PfEFFER Applet
-

Parameters Panel
-

Pay

Gemini

PfEFFER Applet
-

Depth Button Selected

Gemini

PfEFFER Applet
-

Rt Button Selected

Gemini

PfEFFER Applet
-

Vsh Button Selected

Gemini

PfEFFER Applet
-

Phi Button Selected

Gemini

PfEFFER Applet
-

Sw Menu Selected

“Super Pickett” Plot

Digital Rock Catalog

Dynamic comparison

of rock properties and

correlation to other

well data and to other wells

Core description
-

photography
-

petrography


Sedimentology


Core analysis
-

special core analysis



Plots and images form foundation of rock catalog concept


Rock Catalog Database Query and Display

Multiple

criteria

selected

Example:

Select well




Define data to plot

and images to view

Gemini

LAS Plot Applet
-

LAS Plot

Annotated with

tops and

core analysis

locations

Table 5. List of parameters needed for simulation.


flow units/reservoir layers


gross/net pay height


depth to layer1


porosity


permeability X Y Z


relative permeability and capillary pressure data or
corrrelations to generate them


pvt data or correlations to generate them


aquifer selection and definition


fluid saturations


water saturation


initial pressure


calculation constraints ( time steps, saturation change limitations,
gas:oil ratio,

water
:oil ratio, and pressure limitations)


well locations


well history data (production history,
pwf, skin value for each well)
Reservoir Parameters in Simulation

assembled in GEMINI

WELLBORE
INFORMATICS
*petrophysical analysis
*well performance analysis
*PVT calculator
*DST analysis
*relative permeability
& capillary pressure modeling
*synthetic seismogram
Gemini
PROJECT AREA
*petrophysical mapping
*cultural mapping
MAPPING
FLUID CATALOG
*oil
*gas
*water
BOAST
RESERVOIR SIMULATOR
*cross-section plot
*correlator
*volumetrics calculator
ROCK CATALOG
*core pictures
*petrography
*sedimentology
*core petrophysics
KHAN
(
Kansas Hydrocarbon
Association Navigator)
Opportunities created by GEMINI
through Internet access for

geo
-
engineering modeling





New insights, expand knowledge




Change the way business is conducted




Make the domestic petroleum business enterprise more competitive




Minimize assumptions and interpolations in geo
-
engineering




Allow client to efficiently assemble project and knowledge base




Respond to client needs as system as system is used