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发表于 2014-2-10 15:03:49
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以下是我的稿子,我会把一些项目名字隐去,把主体展示一下,但是因为三面是单独面试,我是没有机会看到别人的表现的,所以也无从比较自己这样的思路到底是不是新颖,只是写下来希望对大家有启发吧。
Good afternoon. As you can see, Schlumberger is my true love for my career, so I am very glad to have this opportunity to be here, I hope you’ll like me as l like Schlumberger.
My name is CR.
I have six years of educational background of geophysics. I got my bachelor degree in 2011, in the China University of Geosciences, in Wuhan, Hubei province. During my study, I was always the top three of my major, so I earned different kinds of scholarships, totally about 6000 Yuan and I donated parts of them to the fund of my university to help the poor.
After graduated, I decided to continue my study in the Institute of Geology and Geophysics, the Chinese Academy of Science. Since then, I nearly participated in all the projects of my tutor. As you could see from the screen, but some of them I just help to do some file works as a student, I mainly joined the first two projects.
Ok, let’s see the first one: It’s about the four-dimension method in SAGD development. This is interesting; we all know that the steam and heavy oil has totally different density, and during this SAGD process the density of underground substances will change, so we use microgravity survey to monitor this variation of the reservoir.
At the beginning, it’s just a green thought, but our group collected gravity data year after year, and tried different methods to process it. Finally we ****.
Please look at these figures. These are the microgravity anomalies in 2009, 2010, 2011, 2012, and 2013. We could see the ****.
So is it a effective and simple way to monitor the reservoir?
Wow, I don’t want to talk too much about the second project, it’s a general seismic data processing project, and thanks to this I learn how to fulfill a basic data processing with different business software, such as Omega2, CGG, GeoDepth and so on.
Through this project, I found that the pre-stack time migration can provide velocity model to PSDM, and it’s a important step to do AVO/AVA analysis, fracture detection and distribution, and the Kirchhoff method is one of the widely used method, because it is simple and effective. But nowadays the traditional method could not meet the image of complex structure, especially when the velocity shows the character of anisotropy.
Therefore, I take this topic as my master’s dissertation: Pre-stack Kirchhoff Time Migration for VTI Media.
The heart of Kirchhoff time migration is the double-square-root formula. In 1997, Alkhalifah developed it into this equation with one anisotropic parameter: nta.
First, I studied his previous work, and built these five horizontal layered models to compare the accuracy between his formulas with others. Then I wrote a program with C language to do the anisotropic migration. This is the migration test of a rack wavelet. The picture in the top left corner is the isotropic migration result done by Omega, and the right left corner is my anisotropic result with nta is equal to 0.1, put them together you could find the anisotropic wave front is a little bit fatter, so this is the reliable results. Recently I try to use one of the SEG model to test my program, and when this finished I want to discuss how two different methods influence the velocity model and even the AVO analysis. These work need to be done in the rest of my term.
Well, you know academic life of me, I work very hard and I ‘m proud of myself, but I do not consider it as my top achievement, because I could not done those without my group, my tutor.
Next I want to show another part of me.
I am a happy girl because I like reading and writing and I have so many interesting books.
I am a strong girl because I love sports, climbing mountain, hiking , Oh, that’s me in our sports meeting , and I workout at least three time a week, you can see me upside-down in a gym. I am in good shape and always in good mood, cause I know relax.
So here is my top achievement, I conquer my laziness; I stick to one thing since I entered my institute even without any companion. My will became unshakable; I never give up easily no matter how hard it could be.
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