Core Sample
A core sample is a cylindrical piece of rock or soil extracted from underground during oil and gas exploration. Think of it like taking a vertical slice of a layered cake - it helps oil companies understand what's beneath the surface. When someone mentions core sampling in their resume, they're talking about either collecting these underground samples or analyzing them to determine if there might be oil or gas present. This is a fundamental practice in oil exploration, similar to how a doctor takes a biopsy to examine tissue. Other terms you might see for this include "rock core," "drilling core," or "geological sampling."
Examples in Resumes
Supervised collection of Core Sample extraction at 15 drilling sites
Analyzed Core Samples to determine oil reservoir properties
Led team of technicians in Core Sample analysis and data interpretation
Implemented new preservation techniques for Core Samples and Drilling Cores
Typical job title: "Core Analysts"
Also try searching for:
Where to Find Core Analysts
Professional Organizations
Job Boards
Professional Networks
Example Interview Questions
Senior Level Questions
Q: How do you manage a core analysis program for a major drilling project?
Expected Answer: A senior analyst should explain the process of planning sample collection, ensuring proper handling and preservation, coordinating laboratory analysis, and managing the data interpretation team. They should mention quality control measures and how findings influence drilling decisions.
Q: What methods do you use to ensure the quality and integrity of core samples?
Expected Answer: They should discuss preservation techniques, handling procedures, storage requirements, and documentation methods. Should mention how to prevent contamination and maintain sample integrity from collection to analysis.
Mid Level Questions
Q: What key properties do you look for when analyzing a core sample?
Expected Answer: Should mention basic properties like porosity, permeability, fluid content, and rock type. Should explain how these properties indicate potential oil or gas presence.
Q: How do you document and report core analysis findings?
Expected Answer: Should explain the process of recording observations, using standard documentation methods, preparing reports, and communicating findings to different team members and stakeholders.
Junior Level Questions
Q: What is the basic process of collecting a core sample?
Expected Answer: Should describe the fundamental steps of core sampling, including basic safety procedures, proper handling techniques, and initial documentation requirements.
Q: What basic equipment is used in core sampling?
Expected Answer: Should be able to identify and explain the purpose of basic core sampling tools and equipment, including storage containers and preservation materials.
Experience Level Indicators
Junior (0-2 years)
- Basic sample collection procedures
- Core handling and preservation
- Basic documentation methods
- Safety protocols
Mid (2-5 years)
- Sample analysis techniques
- Data recording and interpretation
- Quality control procedures
- Team coordination
Senior (5+ years)
- Project management
- Advanced analysis methods
- Team leadership
- Strategic planning for sampling programs
Red Flags to Watch For
- No knowledge of basic safety procedures
- Lack of understanding of preservation techniques
- Unable to explain basic sampling methods
- No experience with documentation protocols
- Unfamiliarity with standard analysis equipment
Related Terms
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