sharing kpi hc discriminator xplot
DESCRIPTION
PETROPHYSICS THINGSTRANSCRIPT
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Benny Nugroho Ardhiansyah June 11st, 2015
Komunitas Petrophysicist Indonesia
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Komunitas Petrophysicist Indonesia
OUTLINE
Facts & Challenges
Common RW Identification methods HC Discriminator Xplot -> Rwa vs GR vs Vcl Case Study #1 -> Barito Basin South Kalimantan Case Study #2 -> Tarakan Basin North Kalimantan Case Study #3 -> South Sumatra Basin South Sumatra
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Komunitas Petrophysicist Indonesia
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Test Case #1
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Komunitas Petrophysicist Indonesia
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Test Case #2
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Komunitas Petrophysicist Indonesia
Facts & Challenges in Case Study Area
We work at deltaic system environment -> Heterogenity of water salinity
We cant use resistivity & DN log as HC quick look Limitation of core data There is no clean zone water bearing Formation water samples isnt represent the actual condition
(comingle production / multi layer production)
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Komunitas Petrophysicist Indonesia
Common RW Identification Methods
Core Data
Picket Plot Formation water analysis Depth & temperature relationship
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Komunitas Petrophysicist Indonesia
SW Equations
Archie
Indonesia
Mod Simandoux
Dual Water SwT & SwE
SwT Total Porosity
SwT = Y +( (Rw / ( RT * PHIA^2 ) ) + Y^2 )^.5 Y = Vshl * ( RwBnd - Rw ) / ( 2 * RwBnd ) SwE Effective Porosity
SwE = ( SwT - Vshl ) / ( 1 - Vshl )
SwA = (a * Rw / ( RT * PHIA^m) )^(1/n)
SwMS = (sqrt( (Vshl/Rshl)^2 + 4*PHIE^m/(a*Rw*(1-Vshl)*RT) ) - Vshl/Rshl)/(2*PHIE^m/(a*Rw*(1-Vshl)))
SwI = sqrt(1/RT) / ( Vshl^(1- 0.5*Vshl) /sqrt(Rshl) + sqrt( PHIE^m / (a*Rw)))
Precise RW identification is the important aspect
in SW calculations
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Komunitas Petrophysicist Indonesia
HC Discriminator XPlot
(Andang Bachtiar, et al, 2010)
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HC Discriminator XPlot
Proximal
Distal
Water Salinity
Rw
Proximal
Distal
Komunitas Petrophysicist Indonesia
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HC Discriminator XPlot
Komunitas Petrophysicist Indonesia
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HC Discriminator XPlot
Komunitas Petrophysicist Indonesia
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Case Study #1
Komunitas Petrophysicist Indonesia
Case Study #1 Barito Basin
Lower Warukin Fm
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Case Study #1 Well-PEP01 Zone A
Komunitas Petrophysicist Indonesia
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Case Study #1 Well-PEP01 Zone B
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Case Study #2
Stratigrafi regional Cekungan Tarakan di Sub-cekungan Tarakan: Fm. Bunyu Sand, intercalation shale with
coal, coal Fm. Tarakan Sand, interbeded sand-shale,
coal Fm. Santul Fine sand, thin coal , shale Fm. Tabul Fine and thin sand, interbeded
sand-shale, shale Fm. Meliat Intercalation shale-sand, thin
sand
Lefort et al., 1999
Case Study #2 Tarakan Basin
Santul Fm
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Case Study #2 Well-PEP02 Zone C
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Case Study #3
PLEISTOCENEPLEISTOCENE
PLIOCENEPLIOCENE
M I
O C
E N
EM
I O
C E
N E
O L
I G
O C
E N
EO
L I
G O
C E
N E
EO
CEN
EE
OC
EN
E
LA
TE
LA
TE
LA
TE
LA
TE
LA
TE
LA
TE
MID
DLE
MID
DLE
EA
RLY
EA
RLY
EA
RLY
EA
RLY
PRE TERTIARYPRE TERTIARY
ThTh
TgTg
TbTb
Te
Te
Tf
Tf
Tc
-T
dT
c-
Td
55
1010
1515
2020
2525
3030
3535
4040
1 -
41
-
455
1122
33
Syn inversionSyn inversion
Post rift (sagging)Post rift (sagging)
Syn riftSyn rift
CO
MP
RE
SS
ION
CO
MP
RE
SS
ION
T E
N
S
I
O N
T E
N
S
I
O N
COMPRESSIONCOMPRESSION
ALLUVIALALLUVIAL
KASAI FORMATIONKASAI FORMATION
MUARA ENIMFORMATIONMUARA ENIMFORMATION
AIR BENAKAT
FORMATION
AIR BENAKAT
FORMATION
GUMAIFORMATIONGUMAIFORMATION
BRF
A G EA G E
EPOCHEPOCHM
. Y
.M
. Y
.
BLO
WZ
ON
ES
BLO
WZ
ON
ES
LE
TTE
RS
TA
TE
SLE
TTE
RS
TA
TE
S
GEOLOGICALHISTORY
GEOLOGICALHISTORY
TECTONICTECTONICPULUNGGONO, 1992PULUNGGONO, 1992
STRATIGRAPHICUNIT
STRATIGRAPHICUNIT
N 23N 23
N 22N 22
N 21N 21
N 20N 20
N 19N 19N 18N 18
N 17N 17
N 16N 16
N 15N 15N 14N 14
N 13N 13
N 12N 12
N 11N 11
N 10N 10N 9N 9
N 8N 8
N 7N 7
N 6N 6
N 5N 5
N 4N 4
P 22P 22
P 21P 21
P 20P 20
P 19P 19
P 18P 18
P 17P 17
P 16P 16
P 15P 15
P 14P 14
EXTRUSSIVE /
INTRUSSIVE
METAMORFIC
INFIL
LIN
GS
SE
DIM
EN
TS
INFIL
LIN
GS
SE
DIM
EN
TS
TR
AN
SG
RE
SS
IVE
SE
DIM
EN
TS
TR
AN
SG
RE
SS
IVE
SE
DIM
EN
TS
RE
GR
ES
SIV
ES
ED
IME
NT
SR
EG
RE
SS
IVE
SE
DIM
EN
TS
KIKIM FORMATIONKIKIM FORMATION
UPPER TAFUPPER TAF
Play terbukti
Play eksplorasi
Modified from Ryacudu, 2005
LAHAT
FORMATION
LAHAT
FORMATION
BRF
LOWER TAFLOWER TAF
PLEISTOCENEPLEISTOCENE
PLIOCENEPLIOCENE
M I
O C
E N
EM
I O
C E
N E
O L
I G
O C
E N
EO
L I
G O
C E
N E
EO
CEN
EE
OC
EN
E
LA
TE
LA
TE
LA
TE
LA
TE
LA
TE
LA
TE
MID
DLE
MID
DLE
EA
RLY
EA
RLY
EA
RLY
EA
RLY
PRE TERTIARYPRE TERTIARY
ThTh
TgTg
TbTb
Te
Te
Tf
Tf
Tc
-T
dT
c-
Td
55
1010
1515
2020
2525
3030
3535
4040
1 -
41
-
455
1122
33
Syn inversionSyn inversion
Post rift (sagging)Post rift (sagging)
Syn riftSyn rift
CO
MP
RE
SS
ION
CO
MP
RE
SS
ION
T E
N
S
I
O N
T E
N
S
I
O N
COMPRESSIONCOMPRESSION
ALLUVIALALLUVIAL
KASAI FORMATIONKASAI FORMATION
MUARA ENIMFORMATIONMUARA ENIMFORMATION
AIR BENAKAT
FORMATION
AIR BENAKAT
FORMATION
GUMAIFORMATIONGUMAIFORMATION
BRF
A G EA G E
EPOCHEPOCHM
. Y
.M
. Y
.
BLO
WZ
ON
ES
BLO
WZ
ON
ES
LE
TTE
RS
TA
TE
SLE
TTE
RS
TA
TE
S
GEOLOGICALHISTORY
GEOLOGICALHISTORY
TECTONICTECTONICPULUNGGONO, 1992PULUNGGONO, 1992
STRATIGRAPHICUNIT
STRATIGRAPHICUNIT
N 23N 23
N 22N 22
N 21N 21
N 20N 20
N 19N 19N 18N 18
N 17N 17
N 16N 16
N 15N 15N 14N 14
N 13N 13
N 12N 12
N 11N 11
N 10N 10N 9N 9
N 8N 8
N 7N 7
N 6N 6
N 5N 5
N 4N 4
P 22P 22
P 21P 21
P 20P 20
P 19P 19
P 18P 18
P 17P 17
P 16P 16
P 15P 15
P 14P 14
EXTRUSSIVE /
INTRUSSIVE
METAMORFIC
INFIL
LIN
GS
SE
DIM
EN
TS
INFIL
LIN
GS
SE
DIM
EN
TS
TR
AN
SG
RE
SS
IVE
SE
DIM
EN
TS
TR
AN
SG
RE
SS
IVE
SE
DIM
EN
TS
RE
GR
ES
SIV
ES
ED
IME
NT
SR
EG
RE
SS
IVE
SE
DIM
EN
TS
KIKIM FORMATIONKIKIM FORMATION
UPPER TAFUPPER TAF
Play terbukti
Play eksplorasi
Modified from Ryacudu, 2005
LAHAT
FORMATION
LAHAT
FORMATION
BRF
LOWER TAFLOWER TAF
Case Study #3 South Sumatra Basin
Talang Akar Fm
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Case Study #3 Well-PEP03 Zone D
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Case Study #3 Well-PEP03 Zone E
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Conclusions
With Rwa vs GR vs Vcl Xplot we can easily define Rw, Rwb, Grmax, & GR min
Defining Normal Salinity trend is the most important step We can use this Xplot as qualitative & quantitative HC
interpretation Rwa vs GR vs Vcl Xplot only able to distinguish between HC &
Non HC. If we want to know about the type of HC (Oil/Gas) we can use another Xplot.
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Thank you