Schlumberger Interview Questions, Process, and Tips

Q1. SQL table distributions.
Add your answer
Q2. ADF switching questions?
Add your answer
Q3. How do you optimize the performance?
Ans. 
Performance optimization in data engineering involves tuning queries, indexing, partitioning, and utilizing appropriate hardware.
• Tune queries by optimizing SQL code, using appropriate joins, and avoiding unnecessary operations.

• Utilize indexing to speed up data retrieval by creating indexes on frequently queried columns.

• Partition data to distribute it across multiple nodes or servers for parallel processing.

• Utilize appr...read more
Answered by AI
Add your answer
Q4. What is stored procedure?
Ans. 
A stored procedure is a set of SQL statements that can be saved and reused in a database management system.
• Stored procedures are used to perform a specific task or set of tasks in a database.

• They can accept input parameters and return output parameters.

• Stored procedures can improve performance by reducing the amount of data sent between the database and the application.

• They can also enhance security by controlling acce...read more
Answered by AI
Add your answer
Q5. Ranking functions in SQL?
Ans. 
Ranking functions in SQL are used to assign a rank to each row based on a specific criteria.
• Ranking functions include RANK(), DENSE_RANK(), and ROW_NUMBER()

• RANK() assigns a unique rank to each distinct row

• DENSE_RANK() assigns a unique rank to each distinct row without gaps

• ROW_NUMBER() assigns a unique sequential integer to each row
Answered by AI
Add your answer
Q6. Modelling questions.
Add your answer

It was a group presentation

Q1. What is DCA analysis in reservoir?
Ans. 
DCA analysis in reservoir refers to Decline Curve Analysis, a method used to estimate future production rates of oil and gas wells.
• DCA is a common technique in reservoir engineering to forecast production decline over time.

• It involves fitting a decline curve to historical production data to predict future performance.

• Different decline curve models like exponential, hyperbolic, and harmonic are used depending on the res...read more
Answered by AI
Add your answer

Q1. Mostly questions were from Artificial lift performance, especially based on ESP.
Add your answer
Q2. Primary questions from Reservoir Engineering.
Add your answer

Q1. Technical questions
Add your answer

Rotten egg on inverted pen, social media

Q1. Interview questions
Add your answer

Q1. Explain your project
Ans. 
Developed a predictive model to forecast sales based on historical data
• Collected and cleaned sales data from multiple sources

• Performed exploratory data analysis to identify trends and patterns

• Built a machine learning model using regression techniques

• Evaluated model performance using metrics like RMSE and MAE
Answered by AI
Add your answer
Q2. Oops concept was asked
Add your answer

Q1. All analysis questions, missing values imputation, graph plotting, ML Mathematics and few python language questions.
Add your answer

Q1. How you create a simulation model for FDP?
Ans. 
A simulation model for FDP is created by defining reservoir properties, fluid properties, well configurations, and production strategies.
• Define reservoir properties such as porosity, permeability, and initial fluid saturation

• Define fluid properties such as viscosity, density, and composition

• Specify well configurations including well type, location, and completion design

• Determine production strategies such as flow rates...read more
Answered by AI
Add your answer
Q2. Talk about your experience with fractured reservoirs?
Ans. 
I have extensive experience working with fractured reservoirs, including identifying, characterizing, and optimizing production from them.
• Identifying fractured reservoirs through geological and geophysical data analysis

• Characterizing fracture networks using well logs, core samples, and production data

• Optimizing production from fractured reservoirs through techniques like hydraulic fracturing and reservoir simulation

• Exp...read more
Answered by AI
Add your answer