SONATRACH Interview Questions, Process, and Tips

Q1. How many type of horizontal well
Ans. 
There are several types of horizontal wells, including simple, multilateral, extended reach, and complex wells.
• Simple horizontal wells are the most basic type, drilled horizontally from a vertical wellbore.

• Multilateral horizontal wells have multiple lateral branches extending from the main wellbore.

• Extended reach horizontal wells are drilled to reach distant reservoirs from a single location.

• Complex horizontal wells in...read more
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Q2. Type of stuck pipe and to solve it
Ans. 
Different types of stuck pipe include differential sticking, mechanical sticking, and wellbore geometry issues.
• Differential sticking occurs when the drill pipe becomes stuck in permeable formations due to differential pressure causing the pipe to stick to the formation.

• Mechanical sticking happens when the pipe gets stuck due to wellbore conditions such as tight spots, keyseats, or doglegs.

• Wellbore geometry issues can l...read more
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Q3. How to know rig out bit
Ans. 
Rigging out a bit involves removing the drill bit from the rig floor.
• Ensure the rig floor is clear of any obstructions before rigging out the bit.

• Use proper lifting equipment to safely remove the bit from the rig floor.

• Inspect the bit for any damage or wear before storing it properly.

• Document the rig out process in the drilling report for future reference.
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Q4. How to select bit for formation
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Selecting the right bit for a formation involves considering the formation type, drilling parameters, and bit design.
• Consider the type of formation being drilled (e.g. soft, hard, abrasive)

• Evaluate the drilling parameters such as weight on bit, rotary speed, and mud properties

• Choose a bit design that is suitable for the specific formation characteristics
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Q5. How to do pressure test BOP
Ans. 
To pressure test a BOP, follow proper procedures, use appropriate equipment, monitor pressure levels, and record results.
• Ensure all connections are secure before pressurizing the BOP

• Gradually increase pressure to the specified level and hold for the required time

• Monitor pressure gauges and watch for any leaks or abnormalities

• Record the pressure test results for documentation and analysis
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Q1. What is your biggest weakness
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Q2. Inroduce your self
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Q3. Why shall we hier you
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What is the permissible fraction of pentane in natural gas before liquefaction?

Q1. Description of the facility process
Ans. 
The facility process involves controlling and monitoring various systems using a DCS panel.
• The DCS panel operator is responsible for monitoring and controlling various systems such as boilers, turbines, and generators.

• They must ensure that the systems are operating within safe parameters and take corrective action if necessary.

• The operator must also communicate with other operators and maintenance personnel to ensure s...read more
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Q2. How we stabillisat the regeneration colum
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The regeneration column can be stabilized by controlling the temperature, pressure, and flow rate of the feed and regeneration streams.
• Maintain a consistent temperature in the column

• Control the pressure to prevent fluctuations

• Adjust the flow rate of the feed and regeneration streams

• Monitor the column for any changes in performance

• Make adjustments as necessary to maintain stability
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