R.A.Ghule construction, Mumbai, Interview Questions and Answers

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 involve various wellbore configurations and drilling techniq...read more

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

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.

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

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 lead to stuck pipe when the pipe becomes stuck in deviated ...read more

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