8/19/2019 Syntethic Correlation Petrel

1/8

 S  ch l   um b  er  g e 

Synthetic seismogram correlationSynthetic seismogram correlation(Petrel 2009.1.1)(Petrel 2009.1.1)

 P 

 u b l  i   c

8/19/2019 Syntethic Correlation Petrel

2/8

 S  ch l   um b  er  g e 

Introduction & Objective

● Petrel misses a correlation tool for synthetic seismogram

● In this presentation we will explain a work around to correlate a synthetic

seismogram to a real seismic trace based on either Acoustic Impedance or

Reflection coefficients P 

 u b l  i   c

2

● Three processes will be used in Petrel 2009.1.1

1) Seismic to well tie

2) Genetic Inversion

3) Train estimation model

The objective is to have a numeric correlation indicator for synthetic

seismogram generation

8/19/2019 Syntethic Correlation Petrel

3/8

 S  ch l   um b  er  g e 

Overview

● Generate synthetic seismogram

● Output Reflectivity Coefficient and Acoustic Impedance logs

● Run G.I to obtain R.C inverted cube (Linear and Non-Linear)

● Use Correlation analysis tool under train estimation model (NN) P 

 u b l  i   c

3

● Check the correlation factor to quality check the synthetic seismogram

8/19/2019 Syntethic Correlation Petrel

4/8

 S  ch l   um b  er  g e 

Workflow scheme

Seismic to Well

Tie

Genetic

Inversion

AI RC AIRC

 

P 

 u b l  i   c

4

Train estimationmodel

8/19/2019 Syntethic Correlation Petrel

5/8

 S  ch l   um b  er  g e 

Step 1 Seismic to well tie

● Generate logset

● Wavelet extraction

● A.I and R.C output

 P 

 u b l  i   c

5

8/19/2019 Syntethic Correlation Petrel

6/8

 S  ch l   um b  er  g e 

Step 2 Genetic Inversion

● Generate Acoustic Impedance inverted dataset

● Generate Reflection Coefficients inverted dataset

● A.I and R.C logs QC

 P 

 u b l  i   c

6

8/19/2019 Syntethic Correlation Petrel

7/8

 S  ch l   um b  er  g e 

Step 3 Train estimation model

● Train AI and check the Correlation analysis

● Train RC and check the Correlation analysis

● A.I and R.C logs QC

 P 

 u b l  i   c

7

8/19/2019 Syntethic Correlation Petrel

8/8

 S  ch l   um b  er  g e 

Summary & Conclusion

● The proposed workflow gives a relatively accurate numeric indicator for correlation.

● A.I and R.C are major components of a seismic trace that could be used for correlation

● The proposed workflow is preliminary and not 100% accurate due to the uncertainty

in G.I and also using AI or RC rather than the synthetic trace itself  P 

 u b l  i   c

8