QBB 3053 - Practical Lab Test | Attempts: 129

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| By QBB3053

QBB3053

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Quizzes Created: 1 | Total Attempts: 129

Questions: 20 | Attempts: 129 | Updated: Mar 6, 2024

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Dear Students,
This test is dedicated for Practical Lab Test.
I will open this link from 9 PM to 1 AM, Thursday, 18th August 2016
Please fill in your correct name & ID based on the pdf file given to me for your group members.
"PLEASE DO NOT CHEAT by entering fake ID. Failed to do so, I will deduct 20 marks across the board"
Good luck for your test.
Luluan Almanna Lubis

Questions and Answers

1.

Provide a workflow for fault picking in petrel?
2.

Based on the figure above, identify the input no for inline and crossline
3.

Justify your answer based on Q8?(Q8. Identify the phase and polarity of the seismic section)
4.

Propose one or more attributes which can be used in interpreting the faults and its orientation on the Figure above. Justify why you choose this (these) seismic attributes.
5.

Justify your answer based on Q11?(Q11. The seismic section below is located in offshore Sabah. Identify what is the type of DHI you can identified in these images?)
6.

Identify which one of the figures above is time slice and horizon slice? Justify your answer
7.

Identify the amplitude anomaly(s) from this seismic section. (hints: use the time information as an aid for your interpretation i.e. the anomalies at 950 ms etc)
8.

Interpret the cause of these amplitude anomalies?
9.

Identify the type of traps which can be seen on the seismic section.
10.

Propose minimum one attributes to confirm the DHI anomalies from seismic section.
11.

Identify the possible geological feature can be seen from the time slice of this seismic section?
12.

Propose minimum one attributes to delineate this geological feature. Justify your answer.
13.

Choose the incorrect statement: What is the importance of knowing the seismic header information?
- A.
  
  Provides the location information of the seismic survey
- B.
  
  The header provides amplitude anomalies of the seismic section
- C.
  
  Provides the no of streamers
- D.
  
  Provides the coordinate system
Correct Answer
B. The header provides amplitude anomalies of the seismic section

Explanation
The given answer is incorrect because the seismic header information does not provide amplitude anomalies of the seismic section. The header primarily provides information such as the location of the seismic survey, the number of streamers used, and the coordinate system used. Amplitude anomalies are typically analyzed and interpreted from the seismic data itself, not from the header information.

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14.

Choose the correct statement: Provide a workflow (step(s)) to import the seismic data from segy to zgy format?
- A.
  
  Data loading by assigning the correct byte location -> choose the correct UTM based on the seismic header -> realize the data to zgy format
- B.
  
  Directly load the data from segy
- C.
  
  Data loading by assigning the correct byte location -> changing the seismic header -> realize the data to zgy format
- D.
  
  Directly get the zgy format
Correct Answer
A. Data loading by assigning the correct byte location -> choose the correct UTM based on the seismic header -> realize the data to zgy format

Explanation
The correct answer is "Data loading by assigning the correct byte location -> choose the correct UTM based on the seismic header -> realize the data to zgy format". This answer suggests that the process of importing seismic data from segy to zgy format involves loading the data by assigning the correct byte location, selecting the appropriate UTM (Universal Transverse Mercator) based on the seismic header, and then converting the data to the zgy format.

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15.

What is the coordinate system used in this survey?
- A.
  
  Syntrak 960-24 System
- B.
  
  UTM System
- C.
  
  Petronas Carigali Sdn .Bhd
- D.
  
  Sepat and Laho
Correct Answer
B. UTM System

Explanation
The UTM (Universal Transverse Mercator) system is used in this survey. UTM divides the Earth into 60 zones, each spanning 6 degrees of longitude. It provides a coordinate system that is widely used for mapping and surveying purposes, allowing accurate and consistent measurements to be made across different locations.

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16.

How many streamers were used in the acquisition?
- A.
  
  18.75
- B.
  
  480
- C.
  
  8
- D.
  
  6000
Correct Answer
C. 8

Explanation
The correct answer is 8. This suggests that there were 8 streamers used in the acquisition process.

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17.

Identify the phase and polarity of the seismic section
- A.
  
  Zero phase, American polarity
- B.
  
  Zero phase, European polarity
- C.
  
  Minimum phase, European polarity
- D.
  
  Minimum phase, American polarity
Correct Answer
A. Zero pHase, American polarity

Explanation
The seismic section is described as having zero phase, which means that the seismic waves are in perfect alignment with the source wavelet. This allows for easier interpretation of the seismic data. The polarity is described as American, which refers to the convention of representing positive amplitudes as upward deflections on a seismic trace. This is in contrast to European polarity, where positive amplitudes are represented as downward deflections.

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18.

The seismic section below is located in offshore Sabah. Identify what is the type of DHI you can identified in these images?
- A.
  
  Dim Spot
- B.
  
  Bright Spot
- C.
  
  Flat spot
- D.
  
  Bright Amplitude
Correct Answer
C. Flat spot

Explanation
A flat spot is a type of direct hydrocarbon indicator (DHI) that can be identified in seismic sections. It appears as a relatively horizontal, continuous reflection that is caused by the presence of a hydrocarbon accumulation. The flat spot occurs due to the contrast in acoustic impedance between the hydrocarbon-filled reservoir and the surrounding rock layers. This results in a distinct, flat reflection on the seismic data. The presence of a flat spot can indicate the potential presence of hydrocarbons and is often used as a target for exploration and drilling activities.

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1
0
19.

How many geophones were used in the acquisition?
- A.
  
  480
- B.
  
  18.75
- C.
  
  6000
- D.
  
  8
Correct Answer
A. 480

Explanation
The correct answer is 480. This suggests that 480 geophones were used in the acquisition process.

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Current Version
Mar 06, 2024

Quiz Edited by
ProProfs Editorial Team
Aug 15, 2016

Quiz Created by
QBB3053

Qbb 3053 - Practical Lab Test

Provide a workflow for fault picking in petrel?

Based on the figure above, identify the input no for inline and crossline

Justify your answer based on Q8?(Q8. Identify the phase and polarity of the seismic section)

Propose one or more attributes which can be used in interpreting the faults and its orientation on the Figure above. Justify why you choose this (these) seismic attributes.

Justify your answer based on Q11?(Q11. The seismic section below is located in offshore Sabah. Identify what is the type of DHI you can identified in these images?)

Identify which one of the figures above is time slice and horizon slice? Justify your answer

Identify the amplitude anomaly(s) from this seismic section. (hints: use the time information as an aid for your interpretation i.e. the anomalies at 950 ms etc)

Interpret the cause of these amplitude anomalies?

Identify the type of traps which can be seen on the seismic section.

Propose minimum one attributes to confirm the DHI anomalies from seismic section.

Identify the possible geological feature can be seen from the time slice of this seismic section?

Propose minimum one attributes to delineate this geological feature. Justify your answer.

Choose the incorrect statement: What is the importance of knowing the seismic header information?

Choose the correct statement: Provide a workflow (step(s)) to import the seismic data from segy to zgy format?

What is the coordinate system used in this survey?

How many streamers were used in the acquisition?

Identify the phase and polarity of the seismic section

The seismic section below is located in offshore Sabah. Identify what is the type of DHI you can identified in these images?

How many geophones were used in the acquisition?