Geophysical Data Systems Ltd. S E I S W I N O N B A S I S O F WINDOWS ® SOFTWARE PACKAGE...

Geophysical Data Systems Ltd.Geophysical Data Systems Ltd.

SS E I S E I S WW I N I NO N B A S I S O F WINDOWS® SOFTWARE

PACKAGE


Address:Address: 117198, 117198, RUSSIA, Moscow, Leninsky avn. 113/1RUSSIA, Moscow, Leninsky avn. 113/1,, Park Place Moscow Park Place Moscow, , officeoffice

E-E-332121Phone:Phone: +7 (495) 234 27 94+7 (495) 234 27 94 Fax:Fax:+7 (495) 956 52 37+7 (495) 956 52 37 E-mail:E-mail: [email protected]@gds.ru

Geophysical Data Systems Ltd.



PACKAGE


W E P R E S E N T



QQUANTITATIVEUANTITATIVE

QQUALITY UALITY CCONTROL ONTROL of of SSEISMIC EISMIC DDATAATA

ON BASIS OF WINDOWS® SOFTWARE PACKAGE

S S E I S E I S W W I N I N - Q C- Q C



PACKAGE

FIELD OPERATORFIELD OPERATOR(Seismic Crew)(Seismic Crew)

CUSTOMERCUSTOMER (Oil Company)(Oil Company)

CONTROL

of QUALITY

CRITERIAS

SPECIFIED

IN CONTRACT

BY CUSTOMER

CRITERIAS of SPOILAGE CONTROL

UNCONDITIONAL : Inactive channels Lack of shot break Short records and so on…

CONDITIONAL : Attributes

and integrated quality coefficient calculation

CONTROL

of FIELD

SEISMIC

DATA QUALITY

ON

STAGE OF

THEIR

ACCEPTANCE

FOR NEXT

STAGE of

PROCESSING

SUPERVISORSUPERVISOR



PACKAGE

SOME ASPECTSof

QC CALCULATION

SOME ASPECTSof

QC CALCULATION



PACKAGE

COMPONENTS of SEISMIC DATA QUALITYCOMPONENTS of SEISMIC DATA QUALITYCOMPONENTS of SEISMIC DATA QUALITYCOMPONENTS of SEISMIC DATA QUALITY

TECHNICALTECHNICAL SEISMO-GEOLOGICALSEISMO-GEOLOGICAL METHODICALMETHODICAL

STATE of STATE of ::

Seismic registrator;Seismic registrator;

Vibrators;Vibrators;

Geophone;Geophone;

Seismic cable;Seismic cable;

and so on…and so on…

INFLUENCE of INFLUENCE of ::

Upper part of the Upper part of the

section;section;

Deep conditions;Deep conditions;

Tectonic conditions;Tectonic conditions;


PARAMETERS of :PARAMETERS of :

Lay-out;Lay-out;

Sourse;Sourse;

Geophone array;Geophone array;




PACKAGE

A T T R I B U T I E SA T T R I B U T I E SA T T R I B U T I E SA T T R I B U T I E S

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



PACKAGE

AMPLITUDE-FREQUENCY AMPLITUDE-FREQUENCY

ATTRIBUTSATTRIBUTS

AMPLITUDE-FREQUENCY AMPLITUDE-FREQUENCY

ATTRIBUTSATTRIBUTS

MSP - dominant frequency ;

LCUT - low cut frequency;

HCUT - high cut frequency;

WSP - spectral width



PACKAGE

SIGNAL/NOISE RATIO SIGNAL/NOISE RATIO

MEASUREMENTMEASUREMENT



S/N - signal/niose ratio

2

1

'1

'

Mij

Mij

g

g

N

S

Mijg ' - normalized CCF

S/N



PACKAGE

DIRECT WAVE DIRECT WAVE VELOCITY (VVELOCITY (VDD) )


DIRECT WAVE DIRECT WAVE VELOCITY (VVELOCITY (VDD) )


t

xVD

x – distance between seismic traces

t – time shift by the CCF



PACKAGE

INTEGRATED QUALITY COEFFICIENT INTEGRATED QUALITY COEFFICIENT is a FUNCTION of a few main ATTRIBUTESis a FUNCTION of a few main ATTRIBUTES

INTEGRATED QUALITY COEFFICIENT INTEGRATED QUALITY COEFFICIENT is a FUNCTION of a few main ATTRIBUTESis a FUNCTION of a few main ATTRIBUTES

SN - signal/noise ratio;WSP - spectrum width;MSP - dominant frequency;

E - reflections energy;Eavg - average reflection energy;k - calibrating coefficient.

where

QC =SN

WSP70

MSP35

EEavg

+ + +

0.7 + 0.7 + 0.7 + 0.7k

Signal/Noisemeasurement

Spectral attributesmeasurement

Relative energy measurement



PACKAGE

QC DEPENDENCE on ATTRIBUTE VALUEQC DEPENDENCE on ATTRIBUTE VALUEQC DEPENDENCE on ATTRIBUTE VALUEQC DEPENDENCE on ATTRIBUTE VALUE

0

0,25

0,5

0,75

1

1,25

1,5

1,75

2QC

200 %

Standard quality 1-parameter changed

4- parameter changed

100 %25 %

Good quality

Excellent quality

Bad quality

Spoilage quality

Parameter value relative to standart



PACKAGE

ILLUSRATIONSof

QC PROCESS

ILLUSRATIONSof

QC PROCESS



PACKAGE

FLOW CHART FLOW CHART of QC processof QC process

FLOW CHART FLOW CHART of QC processof QC process

INPUT, GEOMETRY CONTROL, LAY-OUT & DATA VISUALISATION

WINDOWS & PARAMETERS DEFINITION

ATTRIBUTES & INTEGRATED QC CALCULATION

REPORT PRINT OUT

INTERACTIVE ATTRIBUTES & QC VISUALISATION



PACKAGE

DATA INPUT, DATA INPUT, QUALITY QUALITY

& & GEOMETRY GEOMETRY

VISUAL CONTROLVISUAL CONTROL

DATA INPUT, DATA INPUT, QUALITY QUALITY

& & GEOMETRY GEOMETRY

VISUAL CONTROLVISUAL CONTROL



PACKAGE

ANALYSIS ANALYSIS PARAMETERS PARAMETERS

SETTINGSETTING

ANALYSIS ANALYSIS PARAMETERS PARAMETERS

SETTINGSETTING



PACKAGE

ATTRIBUTES & QC CALCULATIONATTRIBUTES & QC CALCULATIONATTRIBUTES & QC CALCULATIONATTRIBUTES & QC CALCULATION

RECORDS ATTRIBUTE SHEET STRUCTURE

ENERGY attributes SRECTRAL

attributes SIGNAL/NOISEratio INTEGRATED

QC



PACKAGE

STATISTICAL CHARACTERISTICS used for QC ESTIMATIONSTATISTICAL CHARACTERISTICS used for QC ESTIMATIONSTATISTICAL CHARACTERISTICS used for QC ESTIMATIONSTATISTICAL CHARACTERISTICS used for QC ESTIMATION



PACKAGE

QC-COEFFICIENT QC-COEFFICIENT VISUALISATION VISUALISATION

along along 2D seismic line2D seismic line

on mapon map

QC-COEFFICIENT QC-COEFFICIENT VISUALISATION VISUALISATION

along along 2D seismic line2D seismic line

on mapon map

Low quality

2D line position

Low quality seismic record

Y

X

High quality

High qualitySeismic record



PACKAGE

SEISMIC RECORD VISUALISATIONSEISMIC RECORD VISUALISATIONSEISMIC RECORD VISUALISATIONSEISMIC RECORD VISUALISATION

Low quality seismic record High quality seismic record



PACKAGE

Low quality seismic record

High qualitySeismic record

High quality

Low quality

QC-COLOR QC-COLOR VISUALISATIONVISUALISATION

on the area on the area of 3D surveyof 3D survey

QC-COLOR QC-COLOR VISUALISATIONVISUALISATION

on the area on the area of 3D surveyof 3D survey



PACKAGE

INTERACTIVE BOND PROGRAMM WINDOWSINTERACTIVE BOND PROGRAMM WINDOWSINTERACTIVE BOND PROGRAMM WINDOWSINTERACTIVE BOND PROGRAMM WINDOWS



PACKAGE

SELECTION of SELECTION of LOW QUALITY LOW QUALITY

RECORDSRECORDSusing using

STATISTICAL STATISTICAL BAR CHARTBAR CHART

SELECTION of SELECTION of LOW QUALITY LOW QUALITY





PACKAGE

SELECTION of SELECTION of HIGH QUALITY HIGH QUALITY



SELECTION of SELECTION of HIGH QUALITY HIGH QUALITY





PACKAGE

SUMMARY of STATISTICAL DATA SUMMARY of STATISTICAL DATA for 2-D Line/ 3-D area for 2-D Line/ 3-D area

SUMMARY of STATISTICAL DATA SUMMARY of STATISTICAL DATA for 2-D Line/ 3-D area for 2-D Line/ 3-D area



PACKAGE

LET US PRESENT

SOME RESULTS

ON THE BASE MAP

LET US PRESENT

SOME RESULTS

ON THE BASE MAP



PACKAGE

DOMINANT FREQUNCY DOMINANT FREQUNCY

(MSP attribute) (MSP attribute)

MAP MAP

DOMINANT FREQUNCY DOMINANT FREQUNCY

(MSP attribute) (MSP attribute)

MAP MAP



PACKAGE


(S/N-attribute) (S/N-attribute)

MAPMAP


(S/N-attribute) (S/N-attribute)

MAPMAP



PACKAGE

REPLACEMENT REPLACEMENT

VELOCITY VELOCITY

MAPMAP

REPLACEMENT REPLACEMENT

VELOCITY VELOCITY

MAPMAP



PACKAGE

INTEGRATED QC INTEGRATED QC

MAPMAP

INTEGRATED QC INTEGRATED QC

MAPMAP



PACKAGE

P R O D U C T I V I T YP R O D U C T I V I T YP R O D U C T I V I T YP R O D U C T I V I T Y

KIND of PROCESSING

QC-attributes calculation for 2-D line

QC-attributes calculation for 3-D line

2D control Stack : amplitude recovery filtering static & NMO correction migration visualisation

3D - strip Stack

INPUT DATA VOLUME

500 recordsby 240 channels

Daily portion:500 records

by 1500 channels

10 000 recordsby 1500 channels:

200 sq. км

500 recordsby 240 channels

500 records by 1500 channels:

one 3-D stripe

TIME EXPENDITURE

10 min

1 hour

less then 20 hour

15 min

1,5 hour



PACKAGE



THANKS

FOR YOUR ATTENTION !

THANKS

FOR YOUR ATTENTION !

PPLEASELEASE, , DON’T FORGET TO TAKE OUR FAIR BROCHURE TO CONTACT TO US DON’T FORGET TO TAKE OUR FAIR BROCHURE TO CONTACT TO US

LATERLATER……

Geophysical Data Systems Ltd. S E I S W I N O N B A S I S O F WINDOWS ® SOFTWARE PACKAGE...

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