Hey guys,
How are you?
I am just wondering what a normal day look like for a geophysicist in the industry?
What are your main tasks? What is the most important thing you have to know in seismic prosessing?
Kind regards
Search found 34 matches
- Thu Oct 15, 2020 11:09 am
- Forum: General Geophysics and Geoscience
- Topic: Work life - what do a geophysicist do in the oil and gas industry?
- Replies: 2
- Views: 817
- Tue Sep 08, 2020 8:49 am
- Forum: General Geophysics and Geoscience
- Topic: Diffraction sensitive to velocity
- Replies: 4
- Views: 1223
Re: Diffraction sensitive to velocity
Thank you for making the sentence easier to understand 

- Mon Sep 07, 2020 4:11 am
- Forum: General Geophysics and Geoscience
- Topic: Diffraction sensitive to velocity
- Replies: 4
- Views: 1223
Re: Diffraction sensitive to velosity
Thank you so much :D What is the difference between time and depth when it comes to diffraction and sensitivity to velocity? Do you also know what this sentence means below: "As a stacking operator for diffractions, Double Square Root operator provides an exact traveltime for a point diffractor in a...
- Sun Sep 06, 2020 5:22 pm
- Forum: General Geophysics and Geoscience
- Topic: Diffraction sensitive to velocity
- Replies: 4
- Views: 1223
Diffraction sensitive to velocity
Why is diffractions sensitive to velocity? And why can we build a improved velocity models from diffraction?
Hope you can help
Hope you can help

- Sun Sep 06, 2020 5:04 am
- Forum: General Geophysics and Geoscience
- Topic: The Kirchhoff migration
- Replies: 4
- Views: 824
Re: The Kirchhoff migration
Thank you so much, GuyM. You have helped me alot 

- Sat Sep 05, 2020 5:24 pm
- Forum: General Geophysics and Geoscience
- Topic: wavefront vs wavefield
- Replies: 2
- Views: 528
Re: wavefront vs wavefield

- Sat Sep 05, 2020 10:02 am
- Forum: General Geophysics and Geoscience
- Topic: wavefront vs wavefield
- Replies: 2
- Views: 528
wavefront vs wavefield
What is the diffrence between wavefront and wavefield?
- Sat Sep 05, 2020 9:06 am
- Forum: General Geophysics and Geoscience
- Topic: The Kirchhoff migration
- Replies: 4
- Views: 824
The Kirchhoff migration
Hello
Please, does anyone understands this figure below?
Do someone here know the difference between Diffraction summing migration and the Kirchoff migration simply explained?
What is the weight factor in the equation?
Please, does anyone understands this figure below?
Do someone here know the difference between Diffraction summing migration and the Kirchoff migration simply explained?
What is the weight factor in the equation?
- Sat Sep 05, 2020 8:54 am
- Forum: General Geophysics and Geoscience
- Topic: diffraction-in seismic
- Replies: 4
- Views: 791
Re: diffraction-in seismic

- Fri Sep 04, 2020 12:12 pm
- Forum: General Geophysics and Geoscience
- Topic: diffraction-in seismic
- Replies: 4
- Views: 791
Re: diffraction-in seismic
Hello again,
Thank you for the explanation.
Do you also know what a ladder effect is for diffraction?
Thank you for the explanation.
Do you also know what a ladder effect is for diffraction?
- Fri Sep 04, 2020 10:23 am
- Forum: General Geophysics and Geoscience
- Topic: diffraction-in seismic
- Replies: 4
- Views: 791
diffraction-in seismic
For reflections, we have this curve in the CMP gather.
What will happen for diffraction? How do we interpret these? Why does it have a hyperbolic shape?
What does the diffraction tell us about the structure?
Why does the diffraction apex have low velocity and increase with the flanks?
What will happen for diffraction? How do we interpret these? Why does it have a hyperbolic shape?
What does the diffraction tell us about the structure?
Why does the diffraction apex have low velocity and increase with the flanks?
- Wed Sep 02, 2020 12:23 pm
- Forum: General Geophysics and Geoscience
- Topic: meaning of redundancy
- Replies: 6
- Views: 792
Re: meaning of redundancy
Thank you so much for all your help
You are really good at explaining and you make these different seismic definitions and
situations easier to understand.
I am on my 2nd year of studying geophysics. It is quite interesting.
Thank you for your help again. I will use your blog.

You are really good at explaining and you make these different seismic definitions and
situations easier to understand.
I am on my 2nd year of studying geophysics. It is quite interesting.
Thank you for your help again. I will use your blog.

- Tue Sep 01, 2020 8:52 am
- Forum: General Geophysics and Geoscience
- Topic: meaning of redundancy
- Replies: 6
- Views: 792
meaning of redundancy
What is the definition of data redundancy in seismic processing?
- Mon Aug 31, 2020 11:36 am
- Forum: General Geophysics and Geoscience
- Topic: migration of diffractions
- Replies: 7
- Views: 1397
Re: migration of diffractions
Thanks for the explanation!
What does data redundancy mean? Is that like reduce in the data or something?

- Sat Aug 29, 2020 2:25 pm
- Forum: General Geophysics and Geoscience
- Topic: nmo eq
- Replies: 7
- Views: 1039
Re: nmo eq
Hey again, How do you relate the NMO equation to Pythagorean theorem? how does it go from equation 3 to equation 4? On equation 4 --> why isn't it x/2? Why do they consider the whole offset and not half of it only in the theorem? Is it because we have to use the whole offset since we have to find th...
- Fri Aug 28, 2020 8:03 pm
- Forum: General Geophysics and Geoscience
- Topic: nmo eq
- Replies: 7
- Views: 1039
Re: nmo eq
Sorry, english is not my first language so it is hard to understand the English.
Thank you for the explanation:)
Thank you for the explanation:)
- Fri Aug 28, 2020 5:52 pm
- Forum: General Geophysics and Geoscience
- Topic: nmo eq
- Replies: 7
- Views: 1039
Re: nmo eq
Why does eq 2 have NMO velocity? and i still didn't understand why there is 4h^2..
Hope you can help
Hope you can help
- Fri Aug 28, 2020 5:07 pm
- Forum: General Geophysics and Geoscience
- Topic: nmo eq
- Replies: 7
- Views: 1039
nmo eq
Why do the nmo eq go from "nmo eq 1" to "nmo eq 2"? (see figure text)
x = offset and h= half offset.
why is there a 4 and not a 2?

x = offset and h= half offset.
why is there a 4 and not a 2?

- Fri Aug 28, 2020 1:19 pm
- Forum: General Geophysics and Geoscience
- Topic: wave theory - kirchhoff migration
- Replies: 4
- Views: 858
Re: wave theory - kirchhoff migration
Thank you so much 

- Fri Aug 28, 2020 7:34 am
- Forum: General Geophysics and Geoscience
- Topic: wave theory - kirchhoff migration
- Replies: 4
- Views: 858
Re: wave theory - kirchhoff migration
Hey again,
what is also "sudden change in facies", "near-surface scattering" and "pinch out"?
What is a small scale feature?
Sorry that I ask so many questions.
what is also "sudden change in facies", "near-surface scattering" and "pinch out"?
What is a small scale feature?
Sorry that I ask so many questions.
- Thu Aug 27, 2020 4:11 am
- Forum: General Geophysics and Geoscience
- Topic: wave theory - kirchhoff migration
- Replies: 4
- Views: 858
wave theory - kirchhoff migration
What type of wave theory is considered in Kirchhoff time migration?


- Tue Aug 25, 2020 5:00 am
- Forum: General Geophysics and Geoscience
- Topic: dip dependent - meaning
- Replies: 2
- Views: 556
Re: dip dependent - meaning
Thank you, GuyM:)
- Mon Aug 24, 2020 5:39 pm
- Forum: General Geophysics and Geoscience
- Topic: dip dependent - meaning
- Replies: 2
- Views: 556
dip dependent - meaning
Did someone here understand what "dip dependent" means? On the equation below it says dip dependent? Is this related to the structure or what? And what is horizontal slowness? M is the midpoint displacement with respect to the considered common midpoint position m0 x is the half source receiver offs...
- Sun Aug 23, 2020 2:31 pm
- Forum: General Geophysics and Geoscience
- Topic: diffraction hyperbola
- Replies: 4
- Views: 765
Re: diffraction hyperbola
thank you 

- Sun Aug 23, 2020 10:06 am
- Forum: General Geophysics and Geoscience
- Topic: diffraction hyperbola
- Replies: 4
- Views: 765
Re: diffraction hyperbola
the first to start with is the velocity model, then from this model the stack is created. Then after a semblance search we get the semblance plot What does it mean that "reflections and diffractions have different kinematic properties"? And "the kinematic part of data sorted in CMP gather can be a n...