D-010 Well Integrity in Drilling and Well Operations

1. D-010 Well Integrity in Drilling and Well Operations Presentation 07.09.2004

2. Agenda

3. Standardisation in the Norwegian Petroleum industry • necessary additions / deviations • areas not covered by int. standards

4. Sector Board Petroleum Industry, • is managing the standardisation activities in the Norwegian petroleum sector. • Project Manager • reports to the Sector Board and performs the administration of all activities, including NORSOK standards. • Work groups; in fact expert panels, • are doing the real standardisation work through: • appointed participants in international standardisation work. • initiating and managing “ad hoc NORSOK project groups” for revision and development of NORSOK standards • A Work group is a forum for experts, where: • Development and use of excellent standards is the main focus • Exchange of experiences and knowledge across company boarders • networking Standardisation in the Norwegian petroleum industry

5. SN Sector Board Petroleum Industry Updated 2004-06-24 Project Manager Knut Heieren M i r r o rCommitteeISO/TC 67 Petroleum Industry Chairman: Rolf Nordaunet, TBL (ABB) HMS, Regularity, Civil, HVAC Jarle Øygarden TBL (Bjørge SAAS) ISO / CEN / IEC Supervision / Coordination Helge Vestre, Auth. Kjell Ø. Tendenes, OLF Olav Inderberg, TBL Stein Østerlie, SN Structures, Geotech, Marine, Pipeline Tore Sildnes Maritim (DNV) Process, Equipment, Piping Olbrigt Bolstad OLF (Hydro) Drilling, Subsea Underwater Rolf Nordaunet TBL (ABB) Electrical, Instr. Telecom, Temp.Eq. Ove Jan Hana OLF (ConocoPhillips) Material Helge Vestre Authorities (Ptil) ISO/TC 67/SC 3/4 ISO/TC 67/SC 2/7 ISO/TC 67/SC 6 IEC/TC 18 ISO/TC 67/SC 5 ISO/TC 67/SC 6 Ag G-Geotechnology Viggo Karlsen Hydro / OLF Ag L-Piping Håvard Heggernes Statoil / OLF Ag D-Drilling Stig Hetlevik Prosafe / OLF Ag M-Material Ragnar Mollan Hydro / OLF Ag E-Electrical Odd Jan Figved Statoil / OLF Ag C-Civil / Architect Sven-Arne Aronsson Statoil / OLF ISO/TC 67 CEN/TC 12 Ag ZR- Regularity & Criticality Runar Østebø Statoil / OLF Ag I-Instrumentation Gunnar Gundersen ConocoPhillips / OLF Ag J-Marine Sigmund Lunde Hydro / OLF Ag P-Process Kolbjørn Moen Aker Kværner / TBL Ag U-Subsea William Bakke Hydro / OLF Ag A-Administration Knut Heieren SN W o r k i n g g r o u p s Ag UB-Underwater Einar Wold Svendsen Statoil / OLF Ag ZSCC-Standard Cost Coding Gudmund Vigerust Hydro / OLF Ag N-Structural Inge Lotsberg DNV / Maritim Ag IM-Metering Endre Jacobsen Statoil / OLF Ag R-Mechanical Odd Knudsen Statoil / OLF Ag S-HMS Erik Odgaard Hydro / OLF Ag Y-Pipeline Erling Gjertveit Statoil / OLF K 126 Drilling and compl fluids and well cements Arne Torsvoll Statoil / OLF Ag I SCD System Control Diagrams Idar Ingebriktsen Consultant Ag RL-Lifting Svein Anders Eriksson Ptil / Myndighetene Ag T-Telecom Knut Aashamar Aker Kværner / TBL Ag H-HVAC Stein Erik Uldalen Hydro / OLF Ag ZTE-Temporary Equipment Ove J Hana ConocoPhillips / OLF Ag ZMC&P Halvdan Holter Hydro / OLF Ag ZTI-Technical Info TBN K 117 Offshore Containers Dag Steensen, DNV K141 Måling av olje og Naturgass Einar Halvorsen, OD Samordnes med: K 48 Kraner og andreløfteinnretninger K 39 Trykkpåkjent utstyr Samordnes med: NEK/NK18 Electric installations of ships and offshore units Samordnes med: K 39Trykkpåkjent utstyr K51 Maling

6. Why Revise? The process for revision of the D-010 Standard was initiated by OLF/Drilling Managers Forum (DMF) and NPD to make the standard compliant with changes in legislation and adapted to evolving and new technology

7. Standard Norge K.Heieren Hearing Process OLF/ Drilling Manager Forum Editorial Committee Chairman S.Hetlevik Secretary T.Løkke-Sørensen G.Svendsen, A.E.Lea, S.Knutsen, A.Thorsrud, H.Spilde Reference Group E.Østbø, J.Haugum, P.Svanes, R.Stanghelle Author Group Sponsored by Members of OLF on request from the Editorial Committee Organization

8. Author Group

9. Structure and Content

10. Well Integrity “application of technical, operational and organisational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well.”

11. 1. Scope • This NORSOK standard focus on well integrity by defining the minimum functional and performance oriented requirements and guidelines for well design, planning and execution of well operations in Norway. • 2. 1. Normative references (examples): • - ISO 14310,Petroleum and natural gas industries – Down hole equipment – Packers and bridge plugs. • OLF/NR’s, No.024, Recommendations for Training of Drilling and Well Service Personnel. • 2. 2. Informative references : None.

12. Examples: 3.1.31 riser margin additional fluid density to add to the hole below the mudline required to compensate for the differential pressure between the fluid in the riser and seawater in the event of a riser disconnect 3.1.44 under balanced drilling (UBD) drilling operation where the dynamic bottom-hole pressure in the well bore is intentionally lower than the pore pressure of the formation being drilled 3.1.50 well influx/inflow (kick) unintentional inflow of formation fluid from the formation into the wellbore

13. … generic principles, requirements and guidelines relating to well activities and operations which are applicable to the specific well activities and operations described in the sections to follow. 4.1 General 4.2 Well barriers 4.3 Well design 4.4 Risk assessment and risk verification methods 4.5 Simultaneous and critical activities 4.6 Activity and operation shut-down criteria 4.7 Activity programmes and procedures 4.8 Contingency plans 4.9 Personnel competence and supervision 4.10 Experience transfer and reporting

14. … activities relating to drilling, formation evaluation and installation of casing strings and liners. x.1 General x.2 Well barrier schematics x.3 Well barrier acceptance criteria x.4 Well barrier elements acceptance criteria x.5 Well control action procedures and drills x.6 Casing design x.7 Other topics x.8 Well barrier schematic illustrations X: Same structure in sections 5-14 • Fluid Column • Casing • Drill String • Drilling BOP • Wellhead • High Pressure Riser • Casing Float Valves

15. …activities relating to installation of a temporary test string for production of hydrocarbons or injection of fluids to evaluate the productivity/injectivity of the well and obtain critical reservoir characteristics. • Well Test String • Sub-sea Test Tree • Surface Test Tree • Well Test Packer • Well Test String Components • Subsea Lubricator Valve for Well Testing • Downhole Tester Valve

16. …activities relating to installation of a permanent completion string for producing/injecting of fluids, including installation of open-hole completion equipment. • Deep Set Tubing Plug • Production Packer • Surface Controlled Sub-surface Safety Valve • Annulus Surface Controlled Sub-surface Safety Valve • Tubing hanger • Tubing hanger plug • Annulus Access Line and Valve • Completion String • Completion String Component • Tubular String Safety Valve

17. …activities relating to continuous well production or injection. • Sub-sea Production Tree • Surface Production Tree

18. …activities relating to sidetracking, suspension, temporary or permanent abandonment of the wellbore or parts there of. • Casing Cement • Cement Plug • Mechanical Tubular Plugs • Liner Top Packer

19. .. deployment of tools and equipment by use of wire or slickline in a well. NOTE: This includes open hole logging, pipe conveyed WL logging, well intervention. • Wireline BOP • Wireline Safety Head • Wireline Stuffing Box • Wireline Lubricator

20. …deployment of tools and equipment by use of coiled tubing in a well. • Coiled Tubing • Coiled Tubing BOP • Coiled Tubing Check Valves • Coiled Tubing Safety Head • Coiled Tubing Strippers • Lower Riser Package

21. …deployment of tools and equipment by use of jointed pipe in a well. • Snubbing Check Valves • Snubbing BOP • Snubbing Stripper • Snubbing Safety Head • Snubbing String • Snubbing Stripper BOP

22. … drilling and completion operations when the wellbore pressure is less or equal to the estimated or measured pore pressure. • Rotating Control Device • Downhole Isolation Valve • UBD None Return Valve

23. … short term injection of fluids into the well, stimulation, corrosion treatment, etc. or for disposal of cuttings or waste. • Production Tree Isolation Tool

24. “Road Map to Understanding” Start Annex A (normative) Leak test pressures and frequency for well control equipment. 4. General principles + + 15. Well barrier element acceptance tables (50 tables) + API, ISO, NACE, NORSOK. + 3. Definitions and abbreviations Aha!

25. So what’s new?

26. 4. General Requirements 5.1 Drilling (incl. P&A) 5.2 Completion or workover 5.3 Testing 5.4 Well Intervention 5.5 Pressure Controlled Drilling Annexes: Barrier Testing, Status and Availability for: Well Completion Operations Well Testing Operations Snubbing Operations Coiled Tubing Operations Wireline or Tractor Operations Old vs. New Standard New New New

27. How much “old stuff ” did we use? This is an estimate: +30 % green, which means the majority of the text is used as is. + 30% yellow, which means the text has been modified/altered. + 40% red, which means the text has been deleted.

28. Another estimate: New standard is 160 pages Old stuff: 56 pages * 60% = 34 pages New stuff: 160 – 34 = 126 pages (79%) 8.4 pages per author How much new stuff has been included?

29. Attempted to specify clear and concise requirements (shall) and guidelines (should) relating to well integrity throughout the life cycle of the well Well barrier terminology with definitions Well barriers for most common situations are defined by use of schematics and tables Descriptions are mostly insensitive to type of well and installation Listing of situations/operations for which well control action procedures should be in place. A library of 50 defined well barrier elements with acceptance criteria which you can use to make your own barrier schematic and well barrier acceptance criteria. Production and Pumping Operations UBD&C, Sidetracking, P&A parts are significantly altered So what’s really new?

30. Competency requirements for offshore personnel – referenced: The Education Plan approved by the Norwegian Ministry of Church, Education and Research in respect of Well Service Techniques, Wireline Operations and Cementing, OLF/NR’s, No.024. Recommendations for Training of Drilling and Well Service Personnel, NORSOK R-003N Equipment specifications – referenced other national and international standards …and probably a few things more! What did we not cover?

31. Was you comment accepted? We received: • 287 comments • 42 rejected (15 %) Big thanks to those who spent time and energy on reading and commenting!

32. Well Barriers

33. Barrier Terminology Working Well Barrier Stage: This is the stage which shows the well barrier elements that are used to confine the pressure in a normal working mode. Example: Closed CT strippers + CT body + surface test tree w. closed wing valve, +++ Primary Well Barrier: This is first object that prevents flow from a source. Example - blue items: Strippers + CT BOP+ surface test tree,+++ Secondary Well Barrier: This is the second object that prevents flow from a source. Example - red items: Lower riser package + production tree + wellhead,+++ Intermediate Well Barrier Stage: This is the stage(s) of a well barrier element activation sequence before the ultimate well barrier stage is reached. Examples: Leak in CT strippers – close CT pipe rams. Well Barrier Element: An object that alone can not prevent flow from one side to the other side of itself. Example: CT BOP Ultimate Well Barrier Stage: This is the final stage of a well barrier element activation sequence which normally includes closing a shearing device. Example: Closed CT shear ram (primary barrier) or closed master valve (secondary barrier),+++ Common Well Barrier Element: This is a barrier element that is shared between primary and secondary barrier. Examples:Body of LRP, X.mas tree and production wing valve

34. 5. Well Barrier Schematics • 4) NOTE: • Legend: • This describes the name of the well barrier elements. • A complete description of general acceptance criteria for this barrier element is found in Clause 15, which contains a library of Well Barrier Element Acceptance Criteria tables. • This table column is used to describe comments. • The place can be used for describing additional requirements and guidelines. For example a description of compensative measures if there exist common barrier elements. • The illustration shows the primary barrier in its normal working stage, while the secondary barrier is shown in its ultimate stage. This stage often described with a closed shearing device.

35. Well Barrier Element Acceptance

36. Well Barrier Element Acceptance Table – Table 1 Fluid Column

37. Quote“The standard is worth nothing unless it is referred to….” Knut Heieren, 2003

38. Questions ?