Api

2. Equipment & Valves (Series 6)

• API 6A: Wellhead and Christmas Tree Equipment.
• API 6D: Pipeline Valves.
• API 610: Centrifugal Pumps.

3. Subsea Production (Series 17)

• API 17D: Subsea Wellhead and Tree Equipment.
• API 17N: Subsea Production System Reliability, Technical Risk, and Integrity Management.

When to Use

Use This Skill When:

• Specifying equipment for drilling or production operations.
• Designing offshore structures (fixed or floating).
• Verifying valve and pump requirements.
• Conducting risk assessments (API 17N, API 14C).

Do Not Use This Skill When:

• Designing ship hulls (use Class Society rules like DNV/ABS).
• Checking material testing protocols (use ASTM).
• Checking European pressure vessel codes (use PED/EN).

Knowledge Areas

1. Spec vs. RP vs. Std

• Spec (Specification): Prescriptive requirements. "Shall" statements are mandatory. (e.g., API 6A).
• RP (Recommended Practice): Guidance and best practices. "Should" statements. (e.g., API RP 2SK for Mooring).
• Std (Standard): Established norms.

2. Digital Lookup

Use the StandardsLookup tool to find full documents. Path: /mnt/ace/O&G-Standards/API/

Code & Data Patterns

Compliance Check Pattern

def check_api_6a_compliance(pressure_rating, temp_class, material_class):
    """
    Verify API 6A equipment rating.
    """
    valid_pressures = [2000, 3000, 5000, 10000, 15000, 20000]
    if pressure_rating not in valid_pressures:
        return False, f"Invalid API 6A pressure rating: {pressure_rating}"
        
    valid_temp_classes = ['K', 'L', 'P', 'R', 'S', 'T', 'U', 'V']
    if temp_class not in valid_temp_classes:
        return False, f"Invalid API 6A temp class: {temp_class}"
        
    return True, "Compliant"

Search Implementation

from digitalmodel.modules.standards_lookup import StandardsLookup

def find_api_docs(query):
    lookup = StandardsLookup()
    # Filter for API specifically
    results = [r for r in lookup.search(query) if "/API/" in r['path']]
    return results

Best Practices

• Version Control: Always check the "Effective Date" of the standard. API standards are updated frequently.
• Addenda: Check for published addenda or errata sheets which modify the base document.
• Monogram: Ensure equipment manufacturers hold a valid API Monogram license if required.

Resources

• Source Files: /mnt/ace/O&G-Standards/API/
• Official Site: api.org