Transcript Document

Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
Address: 117198, RUSSIA, Moscow, Leninsky avn. 113/1, Park Place Moscow, office E-321
Phone:
GeophysicalFax:Data
Ltd.
+7 (495)Systems
956 52 37
E-mail:
+7 (495) 234 27 94
[email protected]
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
WE
SEISWIN
P R E S E N T
QUANTITATIVE
QUALITY CONTROL of SEISMIC DATA
ON BASIS OF WINDOWS® SOFTWARE PACKAGE
SEISWIN-QC
Address: 117198, RUSSIA, Moscow, Leninsky avn. 113/1, Park Place Moscow, office E-321
Phone:
+7 (495) 234 27 94
Fax: +7 (495) 956 52 37
E-mail:
[email protected]
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
FIELD OPERATOR
(Seismic Crew)
CONTROL
of QUALITY
SUPERVISOR
CONTROL
CRITERIAS of
SPOILAGE CONTROL
CRITERIAS
SPECIFIED
IN CONTRACT
BY CUSTOMER
CUSTOMER
(Oil Company)
UNCONDITIONAL :
 Inactive channels
 Lack of shot break
 Short records
 and so on…
CONDITIONAL :
 Attributes
and integrated
quality coefficient
calculation
of FIELD SEISMIC
DATA QUALITY
ON
STAGE OF THEIR
ACCEPTANCE
FOR NEXT STAGE
of PROCESSING
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SOME ASPECTS
of
QC
CALCULATION
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
COMPONENTS of SEISMIC DATA QUALITY
TECHNICAL
SEISMO-GEOLOGICAL
METHODICAL
STATE of :
INFLUENCE of :
PARAMETERS of :
 Seismic registrator;
 Upper part of the section;
 Lay-out;
 Vibrators;
 Deep conditions;
 Sourse;
 Geophone;
 Tectonic conditions;
 Geophone array;
 Seismic cable;
 and so on…
 and so on…
 and so on…
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
ATTRIBUTIES
1. SPECTRAL attributes of seismic records:
- dominant frequency (MSP);
- low cut frequency (LCUT);
- high cut frequency (HCUT);
- spectral width (WSP)
2. Signal/noise ratio
3. Velocity of direct (VD ) or refraction (VR ) wave,
as an upper part of the geological section characterization
4. Relative energy of reflections
5. Integrated quality coefficient of seismic record
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
AMPLITUDE-FREQUENCY
ATTRIBUTS
MSP
- dominant frequency ;
LCUT - low cut frequency;
HCUT - high cut frequency;
WSP
- spectral width
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
S/N
SIGNAL/NOISE RATIO
MEASUREMENT


 g 'ij M 
S


N
1  g 'ij M 




S/N
- signal/niose ratio
g 
- normalized CCF
'
ij M
1
2
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
DIRECT WAVE
VELOCITY (VD)
MEASUREMENT
x
VD 
t
x – distance between
seismic traces
t – time shift by the CCF
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
INTEGRATED QUALITY COEFFICIENT
is a FUNCTION of a few main ATTRIBUTES
Signal/Noise
measurement
QC =
where
SN
WSP
MSP
Spectral attributes
measurement
WSP
MSP
SN +
+
+
70
35
Relative energy
measurement
E
Eavg
0.7 + 0.7 + 0.7 + 0.7
- signal/noise ratio;
- spectrum width;
- dominant frequency;
k
E
- reflections energy;
Eavg - average reflection energy;
k
- calibrating coefficient.
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
QC DEPENDENCE on ATTRIBUTE VALUE
QC
2
Excellent quality
1,75
Good quality
1,5
1,25
Standard
quality
1
0,75
0,5
Bad quality
0,25
0
Spoilage quality
25 %
100 %
200 %
Parameter value relative to standart
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
ILLUSRATIONS
of
QC
PROCESS
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
INPUT, GEOMETRY CONTROL,
LAY-OUT & DATA VISUALISATION
REPORT PRINT OUT
FLOW CHART
of QC process
WINDOWS &
PARAMETERS DEFINITION
ATTRIBUTES &
INTEGRATED QC CALCULATION
INTERACTIVE ATTRIBUTES
& QC VISUALISATION
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
DATA INPUT,
QUALITY
&
GEOMETRY
VISUAL CONTROL
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
ANALYSIS
PARAMETERS
SETTING
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
ATTRIBUTES & QC CALCULATION
RECORDS ATTRIBUTE SHEET STRUCTURE
ENERGY
attributes
SRECTRAL
attributes
SIGNAL/NOISE
ratio
INTEGRATED
QC
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
STATISTICAL CHARACTERISTICS used for QC ESTIMATION
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
Y
SEISWIN
High quality
High quality
Seismic record
Low quality
QC-COEFFICIENT
VISUALISATION
along
2D seismic line
on map
Low quality
seismic record
X
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SEISMIC RECORD VISUALISATION
Low quality seismic record
High quality seismic record
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
High quality
High quality
Seismic record
Low quality
Low quality
seismic record
QC-COLOR
VISUALISATION
on the area
of 3D survey
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
INTERACTIVE BOND PROGRAMM WINDOWS
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SELECTION of
LOW QUALITY
RECORDS
using
STATISTICAL
BAR CHART
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SELECTION of
HIGH QUALITY
RECORDS
using
STATISTICAL
BAR CHART
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SUMMARY of STATISTICAL DATA
for 2-D Line/ 3-D area
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
LET US PRESENT
SOME RESULTS
ON THE BASE MAP
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
DOMINANT FREQUNCY
(MSP attribute)
MAP
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
SIGNAL/NOISE RATIO
(S/N-attribute)
MAP
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
REPLACEMENT
VELOCITY
MAP
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
INTEGRATED QC
MAP
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
SOFTWARE PACKAGE
SEISWIN
PRODUCTIVITY
KIND of PROCESSING
INPUT DATA VOLUME
TIME
EXPENDITURE
QC-attributes calculation
for 2-D line
500 records
by 240 channels
10 min
Daily portion:
500 records
by 1500 channels
1 hour
10 000 records
by 1500 channels:
200 sq. км
less then 20 hour
500 records
by 240 channels
15 min
500 records by 1500 channels:
one 3-D stripe
1,5 hour
QC-attributes calculation
for 3-D line
2D control Stack :
 amplitude recovery
 filtering
 static & NMO correction
 migration
 visualisation
3D - strip Stack
Geophysical Data Systems Ltd.
ON BASIS OF
WINDOWS®
PLEASE, DON’T
SOFTWARE PACKAGE
SEISWIN
FORGET TO TAKE OUR FAIR BROCHURE TO CONTACT TO US LATER…
THANKS
FOR YOUR ATTENTION !
Address: 117198, RUSSIA, Moscow, Leninsky avn. 113/1, Park Place Moscow, office E-321
Phone:
+7 (495) 234 27 94
Fax: +7 (495) 956 52 37
E-mail:
[email protected]