Element 06×Subsurface

Subsurface in Integrity

Asset Design and Integrity

This element holds the subsurface systems and models — the technical asset of the subsurface function, where data integrity, model governance and traceability live.

Standard 5

  • Petroleum Resource Classification and Conversion FactorsIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 11 Standards and practicesNot process safetyNot safety case critical
  • Subsurface Data Management StandardIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 07 Documentation, records and knowledge managementNot process safetyNot safety case critical
  • Well and Formation Integrity Aspects of InjectionIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 15 Inspection, maintenance and asset integrityAlso in Process Safety · Asset integrityNot safety case critical
  • Rock Mechanics Data CollectionIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 11 Standards and practicesNot process safetyNot safety case critical
  • Pore Pressure, Stresses and Shear Failure in Well PlanningTypical exampleCompany-wideAlso in EI PSM · 06 Hazard identification and risk assessmentAlso in Process Safety · Design integrityNot safety case critical

Process, procedure, work instruction 1

  • Well Surveillance and OptimisationIn 1 of 3 operator registersAsset · addsAlso in EI PSM · 09 Process and operational status monitoring, and handoverNot process safetyNot safety case critical

Supporting documents 1

  • Subsurface Statement of Requirement TemplateIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 07 Documentation, records and knowledge managementNot process safetyNot safety case critical

Guidance · outside the system 1

Informative, not a “shall”. These belong in the knowledge base, not the management system. How this works →

  • Exploration Data Ownership GuidelineIn 1 of 3 operator registersCompany-wideAlso in EI PSM · 07 Documentation, records and knowledge managementNot process safetyNot safety case critical
"This is about ensuring data is reliable, models are traceable and decisions can be audited."
  • →The standards for what good data looks like — (Policies and Standards)E02 Policies
  • →The procedures for using the systems — (Plans and Procedures)E07 Procedures
  • →The independent verification of the models — (Assurance, Review and Improvement)E10 Assurance