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Schlumberger Interview Questions and Answers
63 Interview questions
Transmitter, RTD, thermocouple, control valve, and actuators are all important components in instrumentation technology.
Transmitter is a device that converts a physical parameter into an electrical signal.
RTD (Resistance Temperature Detector) is a type of temperature sensor that measures temperature by detecting changes in electrical resistance.
Thermocouple is another type of temperature sensor that measures tempe...
Byte code is a low-level code that is executed by the Python interpreter. Filter function is used to filter elements from an iterable.
Byte code is a compiled code that is generated from Python source code.
It is a platform-independent code that can be executed on any system with a Python interpreter.
Filter function takes an iterable and a function as input and returns a new iterable with elements for which the func...
Schlumberger is a global leader in oilfield services with a strong focus on innovation and technology. If not Schlumberger, I would consider other reputable companies in the industry.
Schlumberger has a strong reputation in the industry for innovation and technology
The company offers excellent training and career development opportunities
Schlumberger has a global presence, providing opportunities to work in differe...
Serialization is the process of converting an object into a byte stream, while deserialization is the reverse process.
Serialization is used to persist object state or transmit objects over a network.
Deserialization is used to reconstruct the object from the byte stream.
In Java, serialization is achieved by implementing the Serializable interface.
Example: ObjectOutputStream for serialization and ObjectInputStream f...
Array difference is finding the elements that are present in one array but not in another.
Use set operations like difference to find elements in one array but not in another.
Example: arr1 = ['a', 'b', 'c'], arr2 = ['b', 'c', 'd'], arr_diff = set(arr1) - set(arr2) = ['a']
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable tables and establishing relationships between them.
It helps in reducing data redundancy, minimizing data anomalies, and improving data consistency.
There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with...
Linear regression is used for continuous variables, while logistic regression is used for binary outcomes.
Linear regression is used to predict a continuous outcome based on one or more input variables.
Logistic regression is used to predict the probability of a binary outcome based on one or more input variables.
Linear regression assumes a linear relationship between the independent and dependent variables, while l...
Seismic inversion is a technique used in geophysics to estimate rock properties below the Earth's surface by analyzing seismic data.
Seismic inversion involves the process of converting seismic reflection data into a quantitative rock property model.
It helps in identifying and characterizing subsurface reservoirs for oil and gas exploration.
The technique is used to estimate properties such as porosity, lithology, a...
Material properties refer to the characteristics and behaviors of materials under specific conditions.
Material properties include mechanical, thermal, electrical, and optical properties.
Examples of material properties are strength, conductivity, melting point, and refractive index.
Understanding material properties is crucial for designing and selecting materials for specific applications.
Iron Carbon phase diagram shows the phases of iron and carbon at different temperatures and compositions.
Shows the phases of iron and carbon at different temperatures and compositions
Important tool for understanding the behavior of steel
Helps in determining the microstructure of steel
Schlumberger Interview Experiences
145 interviews found
Patrick Benedict
Interview Questionnaire
6 Questions
- Q1. If the company tells me to come , l will come for an interview
- Q2. If l want to interview where is my company , if there is a company l will go
- Q3. One more thing l want to ask who paid for the flight ticket l went to an interview to get a better job l don` t have a job right now
- Q4. People don `t know my identity, who l really am . later l will tell you hat l work in a company .........in 1989 l was already working at ( Sarawak shell Ltd ) morning Shell Co. Ltd ..........my contract i...
- Q5. A metal framework used to cook food over an open fire a gridiron,
- Ans.
A gridiron is a metal framework used for grilling food over an open flame, enhancing flavor through direct heat.
Commonly used for grilling meats like steaks and burgers.
Can be made from stainless steel or cast iron for durability.
Allows fat to drip away from food, reducing grease.
Often used in outdoor cooking, such as barbecues and campfires.
- Q6. Look curiously or intently at ( someone ) through or as if though glasses.
Anonymous
I applied via Campus Placement and was interviewed in Sep 2024. There were 2 interview rounds.
If everyone is cheating you should also do it?
(4 Questions)
- Q1. Everyhting about project..
- Q2. Linear vs logistic regression
- Ans.
Linear regression is used for continuous variables, while logistic regression is used for binary outcomes.
Linear regression is used to predict a continuous outcome based on one or more input variables.
Logistic regression is used to predict the probability of a binary outcome based on one or more input variables.
Linear regression assumes a linear relationship between the independent and dependent variables, while logist...
- Q3. Normalization in dbms
- Ans.
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable tables and establishing relationships between them.
It helps in reducing data redundancy, minimizing data anomalies, and improving data consistency.
There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with spec...
- Q4. List array difference etc
- Ans.
Array difference is finding the elements that are present in one array but not in another.
Use set operations like difference to find elements in one array but not in another.
Example: arr1 = ['a', 'b', 'c'], arr2 = ['b', 'c', 'd'], arr_diff = set(arr1) - set(arr2) = ['a']
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Dec 2024. There were 2 interview rounds.
Just easy or medium level leetcode questions
The topic was how AI is affecting softare developer
Interview Preparation Tips
Selected
I appeared for an interview in May 2024.
(6 Questions)
- Q1. SQL table distributions.
- Q2. ADF switching questions?
- 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...
- 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...
- 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
- Q6. Modelling questions.
Skills evaluated in this interview
It was a group presentation
(1 Question)
- 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...
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. Mostly questions were from Artificial lift performance, especially based on ESP.
- Q2. Primary questions from Reservoir Engineering.
Ananay Kaushik
(1 Question)
- Q1. Technical questions
Rotten egg on inverted pen, social media
(1 Question)
- Q1. Interview questions
Sejal Shinde
I applied via Campus Placement and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- 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
- Q2. Oops concept was asked
(1 Question)
- Q1. All analysis questions, missing values imputation, graph plotting, ML Mathematics and few python language questions.
(2 Questions)
- 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...
- 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...
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