1. How would you describe yourself?
2. What specific goals, including those related to your occupation, have you established for your life?
3. How has your college experience prepared you for a business career?
4. Please describe the ideal job for you following graduation.
5. What influenced you to choose this career?
6. At what point did you choose this career?
7. What specific goals have you established for your career?
8. What will it take to attain your goals, and what steps have you taken toward attaining them?
9. What do you think it takes to be successful in this career?
10. How do you determine or evaluate success? Give me an example of one of your successful accomplishments.
11. Do you have the qualifications and personal characteristics necessary for success in your chosen career?
12. What has been your most rewarding accomplishment?
13. If you could do so, how would you plan your college career differently?
14. Are you more energized by working with data or by collaborating with other individuals?
15. How would you describe yourself in terms of your ability to work as a member of a team?
16. What motivates you to put forth your greatest effort?
17. Given the investment our company will make in hiring and training you, can you give us a reason to hire you?
18. Would you describe yourself as goal-driven?
19. Describe what you've accomplished toward reaching a recent goal for yourself.
20. What short-term goals and objectives have you established for yourself?
21. Can you describe your long-range goals and objectives?
22. What do you expect to be doing in five years?
23. What do you see yourself doing in ten years?
24. How would you evaluate your ability to deal with conflict?
25. Have you ever had difficulty with a supervisor or instructor? How did you resolve the conflict?
26. Tell me about a major problem you recently handled. Were you successful in resolving it?
27. Would you say that you can easily deal with high-pressure situations?
28. What quality or attribute do you feel will most contribute to your career success?
29. What personal weakness has caused you the greatest difficulty in school or on the job?
30. What were your reasons for selecting your college or university?
31. If you could change or improve anything about your college, what would it be?
32. How will the academic program and coursework you've taken benefit your career?
33. Which college classes or subjects did you like best? Why?
34. Are you the type of student for whom conducting independent research has been a positive experience?
35. Describe the type of professor that has created the most beneficial learning experience for you.
36. Do you think that your grades are a indication of your academic achievement?
37. What plans do you have for continued study? An advanced degree?
38. Before you can make a productive contribution to the company, what degree of training do you feel you will require?
39. Describe the characteristics of a successful manager.
40. Why did you decide to seek a position in this field?
41. Tell me what you know about our company.
42. Why did you decide to seek a position in this company?
43. Do you have a geographic preference?
44. Why do you think you might like to live in the community in which our company is located?
45. Would it be a problem for you to relocate?
46. To what extent would you be willing to travel for the job?
47. Which is more important to you, the job itself or your salary?
48. What level of compensation would it take to make you happy?
49. Tell me about the salary range you're seeking.
50. Describe a situation in which you were able to use persuasion to successfully convince someone to see things your way?
51. Describe an instance when you had to think on your feet to extricate yourself from a difficult situation.
52. Give me a specific example of a time when you used good judgment and logic in solving a problem.
53. By providing examples, convince me that you can adapt to a wide variety of people, situations and environments.
54. Describe a time when you were faced with problems or stresses that tested your coping skills.
55. Give an example of a time in which you had to be relatively quick in coming to a decision.
56. Describe a time when you had to use your written communication skills to get an important point across
57. Give me a specific occasion in which you conformed to a policy with which you did not agree.
58. Give me an example of an important goal which you had set in the past and tell me about your success in reaching it.
59. Describe the most significant or creative presentation that you have had to complete.
60. Tell me about a time when you had to go above and beyond the call of duty in order to get a job done.
61. Give me an example of a time when you were able to successfully communicate with another person even when that individual may not have personally liked you (or vice versa).
62. Sometimes it's easy to get in "over your head." Describe a situation where you had to request help or assistance on a project or assignment.
63. Give an example of how you applied knowledge from previous coursework to a project in another class.
64. Describe a situation where others you were working with on a project disagreed with your ideas. What did you do?
65. Describe a situation in which you found that your results were not up to your professor's or supervisor's expectations. What happened? What action did you take?
66. Tell of a time when you worked with a colleague who was not completing his or her share of the work. Who, if anyone, did you tell or talk to about it? Did the manager take any steps to correct your colleague?
67. Did you agree or disagree with the manager's actions?
68. Describe a situation in which you had to arrive at a compromise or guide others to a compromise.
69. What steps do you follow to study a problem before making a decision?
70. We can sometimes identify a small problem and fix it before it becomes a major problem. Give an example(s) of how you have done this.
71. In a supervisory or group leader role, have you ever had to discipline or counsel an employee or group member? What was the nature of the discipline? What steps did you take? How did that make you feel? How did you prepare yourself?
72. Recall a time from your work experience when your manager or supervisor was unavailable and a problem arose. What was the nature of the problem? How did you handle that situation? How did that make you feel?
73. Recall a time when you were assigned what you considered to be a complex project. Specifically, what steps did you take to prepare for and finish the project? Were you happy with the outcome? What one step would you have done differently if given the chance?
74. What was the most complex assignment you have had? What was your role?
75. How was your transition from high school to college? Did you face any particular problems?
76. Tell of some situations in which you have had to adjust quickly to changes over which you had no control. What was the impact of the change on you?
77. Compare and contrast the times when you did work which was above the standard with times your work was below the standard.
78. Describe some times when you were not very satisfied or pleased with your performance. What did you do about it?
79. What are your standards of success in school? What have you done to meet these standards?
80. How have you differed from your professors in evaluating your performance? How did you handle the situation?
81. Give examples of your experiences at school or in a job that were satisfying. Give examples of your experiences that were dissatisfying.
82. What kind of supervisor do you work best for? Provide examples.
83. Describe some projects or ideas (not necessarily your own) that were implemented, or carried out successfully primarily because of your efforts.
84. Describe a situation that required a number of things to be done at the same time. How did you handle it? What was the result?
85. Have you found any ways to make school or a job easier or more rewarding or to make yourself more effective?
86. How do you determine priorities in scheduling your time? Give examples.
87. Tell of a time when your active listening skills really paid off for you - maybe a time when other people missed the key idea being expressed.
88. What has been your experience in giving presentations? What has been your most successful experience in speech making?
89. Tell of the most difficult customer service experience that you have ever had to handle -perhaps an angry or irate customer. Be specific and tell what you did and what the outcome was.
90. Give an example of when you had to work with someone who was difficult to get along with. Why was this person difficult? How did you handle that person?
91. Describe a situation where you found yourself dealing with someone who didn't like you. How did you handle it?
92. Give me a specific example of something you did that helped build enthusiasm in others.
93. Tell me about a difficult situation when it was desirable for you to keep a positive attitude. What did you do?
94. Give me an example of a time you had to make an important decision. How did you make the decision? How does it affect you today?
95. Give me an example of a time you had to persuade other people to take action. Were you successful?
96. Tell me about a time when you had to deal with a difficult person. How did you handle the situation?
97. Tell me about a time you had to handle multiple responsibilities. How did you organize the work you needed to do?
98. Tell me about a time when you had to make a decision, but didn't have all the information you needed.
99. What suggestions do you have for our organization?
100. What is the most significant contribution you made to the company during a past job or internship?
101. What is the biggest mistake you've made?
102. Describe a situation in which you had to use reference materials to write a research paper. What was the topic? What journals did you read?
103. Give me a specific example of a time when a co-worker or classmate criticized your work in front of others. How did you respond? How has that event shaped the way you communicate with others?
104. Give me a specific example of a time when you sold your supervisor or professor on an idea or concept. How did you proceed? What was the result?
105. Describe the system you use for keeping track of multiple projects. How do you track your progress so that you can meet deadlines? How do you stay focused?
106. Tell me about a time when you came up with an innovative solution to a challenge your company/class/organization was facing. What was the challenge? What role did others play?
107. Describe a specific problem you solved for your employer or professor. How did you approach the problem? What role did others play? What was the outcome?
108. Describe a time when you got co-workers or classmates who dislike each other to work together. How did you accomplish this? What was the outcome?
109. Tell me about a time when you failed to meet a deadline. What things did you fail to do? What were the repercussions? What did you learn?
110. Describe a time when you put your needs aside to help a co-worker or classmate understand a task. How did you assist him or her? What was the result?
Thursday, November 15, 2007
OBJECTIVE OF SEISMIC PROCESSING
The main goal of seismic processing is to obtain the best image of the subsurface. To achieve this goal the seismic processing should improve the signal-to-noise ratio and locate the reflections in their real spatial position.
We refer to as noise any energy that is recorded and does not come from the primary reflections. There are two types of noise:
Coherent noise: Seismic energy that is consistent from trace to trace. The most common sources of coherent noise are interbed multiples, ground roll, power lines and surface vibrations.
Random or ambient noise: Energy that lacks any relationship between traces. Usually, the random noise is caused by instrumental noise, winds and geophone coupling problems.
The most effective noise attenuation method (especially for random noise) is CMP stacking. Coherent noise is usually more difficult to suppress, and needs more specialized processes as: radon filters (multiple suppression), notch filters (power line noise), f-k filter (wind noise), etc.
The second task of seismic processing is to locate the reflections in their real spatial position; this task is known as imaging. The method used to archive this task depends on the acquisition geometry. Today the most used acquisition geometry is known as multifold acquisition geometry. Figure 1 shows a schematic representation of the multifold geometry, this geometry consists on a number of receiver stations that are separated the same distance (station distance). Each receiver station records the wavefront produced by the seismic source; after the wavefront is recorded (during a fix time interval known as record length), the receivers are move for the next seismic shot location.
Figure 1
After the data is loaded, and some initial processes are applied, it is sorted from the acquisition domain (shot gather domain) to the common-mid-point domain (CMP). The CMP domain is explained in the Figure 2; the data is sorted in groups (gathers) of traces that have the same source-receiver mid point. In this domain is where the most important imaging processes are applied.
Figure 2
After the stacking, the seismic section usually does not represent accurately the location of the reflector. This is because of the normal incidence travel path is only valid for horizontal seismic interfaces. The process used to correct this effect is called seismic migration. Seismic migration improves the seismic image because the locations of subsurface structures (especially faults) are correct in migrated seismic data. Migration collapses diffractions from discontinuities and corrects bow ties to form synclines.
The most important decision to be taken during a seismic processing project is the processing flow. The processing flow should be adapted to the seismic data characteristics. The ability of the processor to find the best combination of process is critical for the quality of the final section.
BASIC SEISMIC PROCESSING SEQUENCE
Although seismic processing flows must be adapted according to the characteristics of the data, they typically include three major steps:
1.Preprocessing and Deconvolution: The objectives of these steps are to:
- Sort the data in the channel domain (demultiplexing)
- Delete defective traces (trace editing)
- Correct the amplitude of wavefront divergence (gain recovery), datum correction (elevation statics) and remove the seismic source effects (deconvolution).
2.Stacking and Velocity Analysis: During this step the data is:
- Sorted to CMP domain (CMP sorting)
- Moveout velocity is estimated (velocity analysis)
- The moveout is removed (NMO correction) and the reverberations are suppressed (multiple attenuation).
3. Migration: The goal of this step is to locate the reflections in the correct spatial location. This process is called seismic migration; this is a very important step because the locations of subsurface structures depend on correctly selecting the parameters.
Figure 3 shows a flow chart of a basic processing sequence. It is important to mention that static correction is applied to land data and multiple attenuation is a process mainly designed for marine seismic.
Figure 3
The main goal of seismic processing is to obtain the best image of the subsurface. To achieve this goal the seismic processing should improve the signal-to-noise ratio and locate the reflections in their real spatial position.
We refer to as noise any energy that is recorded and does not come from the primary reflections. There are two types of noise:
Coherent noise: Seismic energy that is consistent from trace to trace. The most common sources of coherent noise are interbed multiples, ground roll, power lines and surface vibrations.
Random or ambient noise: Energy that lacks any relationship between traces. Usually, the random noise is caused by instrumental noise, winds and geophone coupling problems.
The most effective noise attenuation method (especially for random noise) is CMP stacking. Coherent noise is usually more difficult to suppress, and needs more specialized processes as: radon filters (multiple suppression), notch filters (power line noise), f-k filter (wind noise), etc.
The second task of seismic processing is to locate the reflections in their real spatial position; this task is known as imaging. The method used to archive this task depends on the acquisition geometry. Today the most used acquisition geometry is known as multifold acquisition geometry. Figure 1 shows a schematic representation of the multifold geometry, this geometry consists on a number of receiver stations that are separated the same distance (station distance). Each receiver station records the wavefront produced by the seismic source; after the wavefront is recorded (during a fix time interval known as record length), the receivers are move for the next seismic shot location.
Figure 1
After the data is loaded, and some initial processes are applied, it is sorted from the acquisition domain (shot gather domain) to the common-mid-point domain (CMP). The CMP domain is explained in the Figure 2; the data is sorted in groups (gathers) of traces that have the same source-receiver mid point. In this domain is where the most important imaging processes are applied.
Figure 2
After the stacking, the seismic section usually does not represent accurately the location of the reflector. This is because of the normal incidence travel path is only valid for horizontal seismic interfaces. The process used to correct this effect is called seismic migration. Seismic migration improves the seismic image because the locations of subsurface structures (especially faults) are correct in migrated seismic data. Migration collapses diffractions from discontinuities and corrects bow ties to form synclines.
The most important decision to be taken during a seismic processing project is the processing flow. The processing flow should be adapted to the seismic data characteristics. The ability of the processor to find the best combination of process is critical for the quality of the final section.
BASIC SEISMIC PROCESSING SEQUENCE
Although seismic processing flows must be adapted according to the characteristics of the data, they typically include three major steps:
1.Preprocessing and Deconvolution: The objectives of these steps are to:
- Sort the data in the channel domain (demultiplexing)
- Delete defective traces (trace editing)
- Correct the amplitude of wavefront divergence (gain recovery), datum correction (elevation statics) and remove the seismic source effects (deconvolution).
2.Stacking and Velocity Analysis: During this step the data is:
- Sorted to CMP domain (CMP sorting)
- Moveout velocity is estimated (velocity analysis)
- The moveout is removed (NMO correction) and the reverberations are suppressed (multiple attenuation).
3. Migration: The goal of this step is to locate the reflections in the correct spatial location. This process is called seismic migration; this is a very important step because the locations of subsurface structures depend on correctly selecting the parameters.
Figure 3 shows a flow chart of a basic processing sequence. It is important to mention that static correction is applied to land data and multiple attenuation is a process mainly designed for marine seismic.
Figure 3
Message
1. For Love
Wish the sun fills your day and warms your heart ... Thinking of you.
Behind your smile I know there are sorrows. Behind your laught I know there are tears. But I want you to know that behind you is me who will always CARE for you.
I am restless. I am depressed.I am lonely. I am sad. And I am going crazy. All for just two reasons: I am here, And you're there :<(
I miss you so, here around me, so many people, but yet so alone. I miss your lips, your lovely smile, I miss you each day more and more!
I never really meant to hurt you...I hope you will find it in your heart to forgive me!!!
I wish I could kiss your tears away. I wish I could kiss all your fears goodbye but mostly I wish that I could love you forever.
If I die and go to heaven, I’ll put your name on a golden star. So that all the angels can see, how much you mean to me.
If I had a penny for everytime I thought of you, I'd still miss you, but at least I would be rich enough to come and see you..!!
My heart refuses to stay with me because it's with you... I really like you.
Remember the M Remember the E Put them together and remember ME!
The day that I'll die, when death replaces birth, I'll recognize angels' faces, because I live with one on earth.
Things just aren'the same...when you're not around. I miss you!!!
To the world you are one person. But to one person you are the world.
What I feel for you,is really true. You got to know,I need you so. When you are gone, I cant go on. Cant you see, that you are the only one
You can fall from a bridge. You can fall from above. But the best way of falling, is falling in love!
Never-Ending Love.
Miss you so much
I love you!
2. Friendship
Chuc tinh ban mai mai ben lau!!
Hay nho rang toi luon o ben ban!
I can't change your fate, but i'll do my best anything for you because you are my friend.
Make a heart that never breaks, Make a smile that never fails, Make a touch that never pains, Make a friendship that never ends.
True friends are loving, True friends care and at the end the true friends are always there.
You really mean something for me... thank you for every thing you do for me.
3. Happy new year
An khang Thinh vuong, Phat tai Phat loc, Manh khoe Hanh phuc!
Chuc ca gia dinh sang nam moi van su nhu y, ty su nhu mo, lam viec nhu tho, doi vui nhu nhac, coi tien nhu rac, coi bac nhu rom, chung thuy voi com va sac son voi pho+?.
Loc biec, mai vang, xuan hanh phuc. Doi vui, suc khoe, Tet an khang!
Nam het,Tet den.Ruoc den vao nha.Qua cap bao la.Mot nha no du.Gia chu phat tai.Gia tre gai trai.Sum vay hanh phuc.Cau tai,chuc phuc.An khang.Thinh vuong!
Nam moi Suc khoe doi dao, Tien vo nhu nuoc, An khang, Thinh vuong!
Nam toi nhieu tien, tinh dep nhu tien, suc khoe vo bien, cong danh thang tien, niem vui trien mien!
Nam moi chuc ca nha mot bau troi suc khoe, mot bien ca tinh thuong, mot diep khuc tinh yeu, mot nguoi yeu chung thuy, mot tinh ban menh mong, mot gia dinh thinh
Sang nam moi chuc ca nha`co' mot bau troi suc khoe, mot bien ca tinh thuong, mot dai duong tinh cam, mot diep khuc tinh yeu, mot nguoi yeu chung thuy, mot tinh ban menh mong, mot gia dinh thinh vuong
4. Happy Birthday
Mung ngay sinh nhat de thuong :) Mung ngay sinh nhat cua Em :-) Mung ngay do em sinh ra doi :>) Happy Birthday to You!
Happy Birthday to You! Happy Birthday to You! Happy Birthday to .... !
5. Cau Doi Tet
Nang chen tra xuan. Nao nuoc doc “Danh nhan the gioi”. Nhap ly ruou Tet. Boi hoi xem “Hao kiet Viet nam”.
Toi ba muoi,khep chat can khon,nich chat lai keo Ma Vuong dua quy toi.Sang mong mot,long then tao hoa,mo toang ra cho Thieu Nu ruoc xuan vao.
Thien tang tue nguyet, nhan tang tho. Xuan man can khon, phuc man duong.
Loc biec, mai vang, xuan hanh phuc. Doi vui, suc khoe, Tet an khang!
6. Happy Woman’Day
A Happy Future.
Chuc ban luon xinh tuoi va hanh phuc nhan ngay 8/3!
Chuc mung ngay Quoc te Phu nu 8/3!
Em la nguoi phu nu tuyet voi nhat!
Em yeu, hay de anh cham soc em!
Have a Happy Time!
I will miss You. And You'll be Missed.
Let's not say Good Bye!
Motherhood is special.
Proud of You. So Proud of You.
Reasons to Celebrate.
Share My Love.
Sincene Congrats.
Sit Back and Relax.
So Happy for You.
Well-Deserved Retirement.
You make the World Beautiful.
7. Chuc Mung Cac Su Kien Gia Dinh – Events and Occasions
Achieving Goals
Chuc anh gat hai nhieu thanh cong trong cong viec moi!
Chuc cac ban tram nam hanh phuc!
Congratulations on Your New Little Bundle of Joy.
Good Bye Get-Together.
Happy Valentine's Day.
Restful Weekend.
Welcoming a New Child.
8. Merry Christmas
Chua ban phuoc lanh!
Chuc Giang Sinh an lanh, thanh thien, hanh phuc va am ap!
Chuc Giang sinh an binh va Nam moi thanh dat, phat tai!
Chuc Giang sinh an binh va Nam moi thanh dat, phat tai!
Many lucky and happy stars will come and stay with you for this wonderful season. Merry Christmas!
Marry Christmas and Happy New Year!
Merry Christmas and a Happy New Year with Health, Peace and Love!
Merry X'mas and Happy New Year!
Wish the sun fills your day and warms your heart ... Thinking of you.
Behind your smile I know there are sorrows. Behind your laught I know there are tears. But I want you to know that behind you is me who will always CARE for you.
I am restless. I am depressed.I am lonely. I am sad. And I am going crazy. All for just two reasons: I am here, And you're there :<(
I miss you so, here around me, so many people, but yet so alone. I miss your lips, your lovely smile, I miss you each day more and more!
I never really meant to hurt you...I hope you will find it in your heart to forgive me!!!
I wish I could kiss your tears away. I wish I could kiss all your fears goodbye but mostly I wish that I could love you forever.
If I die and go to heaven, I’ll put your name on a golden star. So that all the angels can see, how much you mean to me.
If I had a penny for everytime I thought of you, I'd still miss you, but at least I would be rich enough to come and see you..!!
My heart refuses to stay with me because it's with you... I really like you.
Remember the M Remember the E Put them together and remember ME!
The day that I'll die, when death replaces birth, I'll recognize angels' faces, because I live with one on earth.
Things just aren'the same...when you're not around. I miss you!!!
To the world you are one person. But to one person you are the world.
What I feel for you,is really true. You got to know,I need you so. When you are gone, I cant go on. Cant you see, that you are the only one
You can fall from a bridge. You can fall from above. But the best way of falling, is falling in love!
Never-Ending Love.
Miss you so much
I love you!
2. Friendship
Chuc tinh ban mai mai ben lau!!
Hay nho rang toi luon o ben ban!
I can't change your fate, but i'll do my best anything for you because you are my friend.
Make a heart that never breaks, Make a smile that never fails, Make a touch that never pains, Make a friendship that never ends.
True friends are loving, True friends care and at the end the true friends are always there.
You really mean something for me... thank you for every thing you do for me.
3. Happy new year
An khang Thinh vuong, Phat tai Phat loc, Manh khoe Hanh phuc!
Chuc ca gia dinh sang nam moi van su nhu y, ty su nhu mo, lam viec nhu tho, doi vui nhu nhac, coi tien nhu rac, coi bac nhu rom, chung thuy voi com va sac son voi pho+?.
Loc biec, mai vang, xuan hanh phuc. Doi vui, suc khoe, Tet an khang!
Nam het,Tet den.Ruoc den vao nha.Qua cap bao la.Mot nha no du.Gia chu phat tai.Gia tre gai trai.Sum vay hanh phuc.Cau tai,chuc phuc.An khang.Thinh vuong!
Nam moi Suc khoe doi dao, Tien vo nhu nuoc, An khang, Thinh vuong!
Nam toi nhieu tien, tinh dep nhu tien, suc khoe vo bien, cong danh thang tien, niem vui trien mien!
Nam moi chuc ca nha mot bau troi suc khoe, mot bien ca tinh thuong, mot diep khuc tinh yeu, mot nguoi yeu chung thuy, mot tinh ban menh mong, mot gia dinh thinh
Sang nam moi chuc ca nha`co' mot bau troi suc khoe, mot bien ca tinh thuong, mot dai duong tinh cam, mot diep khuc tinh yeu, mot nguoi yeu chung thuy, mot tinh ban menh mong, mot gia dinh thinh vuong
4. Happy Birthday
Mung ngay sinh nhat de thuong :) Mung ngay sinh nhat cua Em :-) Mung ngay do em sinh ra doi :>) Happy Birthday to You!
Happy Birthday to You! Happy Birthday to You! Happy Birthday to .... !
5. Cau Doi Tet
Nang chen tra xuan. Nao nuoc doc “Danh nhan the gioi”. Nhap ly ruou Tet. Boi hoi xem “Hao kiet Viet nam”.
Toi ba muoi,khep chat can khon,nich chat lai keo Ma Vuong dua quy toi.Sang mong mot,long then tao hoa,mo toang ra cho Thieu Nu ruoc xuan vao.
Thien tang tue nguyet, nhan tang tho. Xuan man can khon, phuc man duong.
Loc biec, mai vang, xuan hanh phuc. Doi vui, suc khoe, Tet an khang!
6. Happy Woman’Day
A Happy Future.
Chuc ban luon xinh tuoi va hanh phuc nhan ngay 8/3!
Chuc mung ngay Quoc te Phu nu 8/3!
Em la nguoi phu nu tuyet voi nhat!
Em yeu, hay de anh cham soc em!
Have a Happy Time!
I will miss You. And You'll be Missed.
Let's not say Good Bye!
Motherhood is special.
Proud of You. So Proud of You.
Reasons to Celebrate.
Share My Love.
Sincene Congrats.
Sit Back and Relax.
So Happy for You.
Well-Deserved Retirement.
You make the World Beautiful.
7. Chuc Mung Cac Su Kien Gia Dinh – Events and Occasions
Achieving Goals
Chuc anh gat hai nhieu thanh cong trong cong viec moi!
Chuc cac ban tram nam hanh phuc!
Congratulations on Your New Little Bundle of Joy.
Good Bye Get-Together.
Happy Valentine's Day.
Restful Weekend.
Welcoming a New Child.
8. Merry Christmas
Chua ban phuoc lanh!
Chuc Giang Sinh an lanh, thanh thien, hanh phuc va am ap!
Chuc Giang sinh an binh va Nam moi thanh dat, phat tai!
Chuc Giang sinh an binh va Nam moi thanh dat, phat tai!
Many lucky and happy stars will come and stay with you for this wonderful season. Merry Christmas!
Marry Christmas and Happy New Year!
Merry Christmas and a Happy New Year with Health, Peace and Love!
Merry X'mas and Happy New Year!
Case Study from 12 Successful Years of High Temperature Fracturing in Bach Ho Field offshore Vietnam
S. Jain, A. Prestridge, P. Dellorusso, and N. C. Nghi, Schlumberger and D.D. Lam and V.Q. Hung, Vietsovpetro
Abstract:
This paper presents the results of propped fracturing operations conducted in the past 12 years in the Bach Ho (White Tiger) field offshore Vietnam. High temperatures (>275oF) and closure stress (>8,000 psi) combined with the fact that fracturing has to be performed from a vessel make the execution of fracturing treatments operationally difficult and challenging. More than 60 treatments have been performed in over 40 wells placing over 3 million lbm of proppant with a success rate greater than 85%. The wells targeted were both injector and producer wells. The post treatment results have been excellent with an average increase in Productivity Index (PI) of greater than 5 times.This study discusses the properties of the various hydrocarbon-producing zones in the Bach Ho field. A general discussion of reservoir properties and damage mechanisms is included, which demonstrates the potential for stimulation and the associated benefits. The methodology adopted in the design, execution and evaluation of the fracturing treatments is discussed. Discussion on the rig-up of the fracturing vessel and the necessary modifications for efficient operation is also included.A review of the treatments indicates that the majority of them are conducted at a flow-rate of 20-25 bbl/min (bpm), with a maximum proppant concentration in the range of 8-10 ppa (lbm of proppant added to 1 gal. of clean fluid) and proppant quantities of 60,000 to 80,000 lbm per treatment. High leak-off limits higher proppant concentrations and volumes. Higher rates are desirable but are limited due to limitation of equipment on the fracturing vessel.Zones targeted are both the Oligocene (sandstone) and the naturally fractured Basement. Propped fracturing has been found to be very successful in the Oligocene whereas different types of treatments like propped fracturing, acid fracturing and acidizing have been tried in the Basement with limited success. Finally the lessons learned and the experiences gained in this field are shared.
Biography:
Paul Dellorusso is the BMP (Brunei – Malaysia – Philippines) GeoMarket Well Production Services Technical/Sales Engineer at Schlumberger. He holds a Masters Degree in Mechanical Engineering from Dalhousie University, Canada. He has 7 years of experience in reservoir stimulation – Hydraulic Fracturing (Propped & Acid), Matrix Acidizing (SS & Carbonate) & Sand Control. He has worked in many countries including USA, Egypt, Sudan, Dubai, Malaysia and Vietnam. He is currently based in Kuala Lumpur, Malaysia.
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