Norsok

2. Drilling & Well (D-Series)

• D-010: Well integrity in drilling and well operations. (The global benchmark for well barriers).

3. Safety & Working Environment (S-Series)

• S-001: Technical Safety.
• S-002: Working Environment.

When to Use

Use This Skill When:

• Designing for the North Sea or harsh cold-climate environments.
• Defining Well Barrier Schematics (D-010).
• Specifying high-durability coating systems (M-501).

Knowledge Areas

1. Well Barriers (D-010)

NORSOK D-010 defines the "Two Barrier Principle":

1. Primary Barrier: First line of defense (e.g., fluid column, packer).
2. Secondary Barrier: Back-up (e.g., BOP, Wellhead).

2. Material Data Sheets (MDS)

M-001 refers to specific MDSs that precisely define chemistry and testing for steel grades (e.g., "MDS D46" for Duplex Stainless Steel).

Code & Data Patterns

Barrier Status Check

def check_barrier_status(primary_status, secondary_status):
    """
    Evaluate well integrity based on NORSOK D-010 principles.
    """
    if primary_status == "OK" and secondary_status == "OK":
        return "GREEN: Healthy"
    elif primary_status == "FAILED" and secondary_status == "OK":
        return "ORANGE: Degraded (Single Barrier Failure)"
    elif secondary_status == "FAILED":
        return "RED: Unsafe (Secondary or Double Failure)"
    else:
        return "UNKNOWN"

Best Practices

• Strictness: Assume NORSOK requirements exceed API/ISO unless proven otherwise.
• Coatings: M-501 systems (e.g., System 7 for submerged) are industry standards even outside Norway.

Resources

• Source Files: /mnt/ace/O&G-Standards/Norsok/