Element 11×Subsurface
Subsurface in Standards & Practices
Standards and practices
Why 4 of these documents sit here
Every technical discipline has its own standards and practices, and subsurface is no exception. Reserves classification, estimation and prospect assessment methods govern technical judgement in the same way engineering standards do. They sit here, not in a separate "commercial" box.
Integrated reading of element 11 →Example documents, by tier
Standard 4
- Petrophysics Functional StandardsIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 02 Policies and StandardsNot process safetyNot safety case critical
- Tight Hole StandardIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 02 Policies and StandardsNot process safetyNot safety case critical
- Petroleum Resource Classification and Conversion FactorsIntegrated readingIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 06 Asset Design and IntegrityNot process safetyNot safety case critical
- Rock Mechanics Data CollectionIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 06 Asset Design and IntegrityNot process safetyNot safety case critical
Process, procedure, work instruction 2
- Chemostratigraphy Report ProcedureIntegrated readingIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 07 Plans and ProceduresNot process safetyNot safety case critical
- Prospect and Resource Probability Assessment MethodologyIntegrated readingIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 07 Plans and ProceduresNot process safetyNot safety case critical
Guidance · outside the system 4
Informative, not a “shall”. These belong in the knowledge base, not the management system. How this works →
- Water Management GuidelineIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 05 Risk Assessment and ControlNot process safetyNot safety case critical
- Operations Geology GuidelineTypical exampleCompany-wideAlso in IOGP 510 · 07 Plans and ProceduresNot process safetyNot safety case critical
- Formation Evaluation Wireline Logging Best PracticeIn 1 of 3 operator registersCompany-wideAlso in IOGP 510 · 08 Execution of ActivitiesNot process safetyNot safety case critical
- Estimation of Proved Reserves GuidelineIntegrated readingTypical exampleCompany-wideAlso in IOGP 510 · 09 Monitoring, Reporting and LearningNot process safetyNot safety case critical