Norm Workshop Pdo - Oman 21 - 24 February 2005 TIM ELEY - SCOTOIL GROUP plc, ABERDEEN MARK RITCHIE - OES, CAIRO, EGYPT

2. AGENDA Introduction to Scotoil Group & Scotoil Services Equipment subject to NORM - ‘Rogue’s Gallery’ Equipment Decontamination Procedure Step by Step, Aberdeen Disposal Route - Compliance with Regulations Scotoil - Oilfield Environmental Services Equipment Decontamination Procedure Step by Step, Cairo QUESTIONS ?

3. EUROPE Scotoil Group plc headquarters in Aberdeen, Scotland

4. More than 20 years’ experience

5. OUR CLIENTS Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

6. Equipment decontamination

7. High Pressure Generally for component parts and tubulars Ultra High Pressure - Trials More efficient tubular cleaning Increased throughput More effective cleaning of lead contaminated tubulars Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

8. Disposal facility regulated by SEPA

10. Radiological surveys

11. Formation water contains naturally-occurring mineral salts Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

12. Specific Activity Activity per gram i.e. Bq/gram

13. Measured in sieverts { large unit} - usually prefix sub multiplier e.g.1 µSv {micro sievert}

14. Naturally occurring radioactive material is a major issue for field operation decommissioning Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

15. Colour varies from white through to brown

16. Radiation dose

37. Step by Step Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

38. Written notification from the Operator of NORM consignment Identified offshore by platform/rig RPS Scotoil authorised to accept contaminated equipment Contamination levels monitored on arrival Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

39. Unload equipment into Controlled Area Enter job details on computerised Job Register Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

40. Scale sample passed to Laboratory Radiological analysis, total activity, type of scale Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

41. Arrival, Documentation Check & Inspect Tubulars - check internal, external pin, box, scale thickness, activity for each joint Unique Job No - waterproof tag, client, location Complete monitoring records for each item or component part All joints capped or re-wrapped Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

42. Decontamination of Equipment Pre-cleaning prior to stripdown Stripdown if required Soluble abrasives can be used to assist decontamination Full decontamination Post, Final & QC Inspection Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

43. Ultra High Pressure Pump Unit 36,000 psi working pressure at 42 litres per minute High Pressure Aqua Pumps 10,000 psi working pressure at 82 litres per minute Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

44. Tubular Decontamination System High Pressure jetting combined with lance mounted cutter ‘Rattler head’ Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

45. Tubular Ends - Fully Enclosed Hoods All Scale & cleaning water collected to sump Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

46. Tubular Ends - Fully Enclosed Hoods Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

47. Lance Mounted Cutter Head ‘Rattler’ Machine with hardened cutting surfaces Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

48. All Scale ground down to less than <250 microns All Scale passed through screens Oil Separator - two stage Controlled discharged to sea regulated by SEPA Post Cleaning Monitor Record Final Check Monitor Record Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

49. Results of radiochemical analysis on computerised Job Register Certificate of Scale Disposal - master job file Quarterly Scale Disposal computerised records Quarterly Sea Survey - results, particle size analysis to radiation specialists at SEPA (Scottish Environment Protection Agency) Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

50. Compliance with HSE Regulations Ionising Radiation Regulations 1999 Control of Pollution Act 1974* Radiation Substances Act 1993 Environmental Pollution Act 1990 Registered under the pipeline Act 1962 Authorisation for the Accumulation and Disposal of Radioactive Waste* * Regulated by SEPA (Scottish Environment Protection Agency) Project teams combine partner knowledge and Scotoil expertise to create a powerful combinationProject teams combine partner knowledge and Scotoil expertise to create a powerful combination

54. ON ARRIVAL, THE CONTAMINATED ITEM IS OFFLOADED AND DIRECTED TO OES RADIATION CONTROLLED AREA.

57. THE EQUIPMENT IS DISMANTLED BY EITHER OES PERSONNEL OR A SPECIALIST THIRD PARTY; RADIOLOGICALLY SUPERVISED BY OES.

58. EACH PART IS GIVEN AN INDIVIDUAL IDENTIFICATION NUMBER, MONITORED AND TAGGED.

59. THE BREAKDOWN AREA IS DECONTAMINATED, FLUSHING ALL CONTAMINENTS INTO THE CLOSED LOOP DRAINAGE AND FILTRATION SYSTEM.

60. EACH PART IS INDIVIDUALLY DECONTAMINATED

61. STATE OF THE ART UHP WATER JETTING EQUIPMENT.

62. RESULTING RADIOACTIVE WASTE IS COLLECTED IN A CLOSED LOOP SIX STAGE FILTRATION AND WATER RECYCLING SYSTEM.

63. FOLLOWING DECONTAMINATION, EQUIPMENT IS MONITORED AND SURVEYED FOR VISUAL SCALE. IF ACCEPTED, INTERIM CHECK TAPE IS ATTACHED TO THE EQUIPMENT.

64. EQUIPMENT IS NOW MONITORED BY A HEALTH PHYSICIST AT THE QUALITY CONTROL STAGE.

65. FOLLOWING ACCEPTANCE BY THE QC DEPARTMENT AND CLIENT, THE EQUIPMENT IS SUITABLY WRAPPED AND EITHER BOXED, PALLETISED OR RETURNED TO ITS ORIGINAL CONTAINER.

66. THE EQUIPMENT IS CLEAN, SAFE, CERTIFIED AND READY FOR CUSTOMER UPLIFT.

67. THE FILTRATION SYSTEM IS CLEANED, TRANSFERRING ALL WASTE TO THE CLIENTS NORM STORAGE CONTAINER.

68. THE ENTIRE CONTROLLED AREA IS SURVEYED BY A QUALIFIED HEALTH PHYSICIST TO ENSURE THAT IT IS FREE OF CONTAMINATION.

69. WHEN EITHER THE QUANTITY OF NORM WASTE OR THE DOSE RATE HAS EXCEEDED A CERTAIN LEVEL, OES REQUEST THAT THE CLIENT AND THE EGYPTIAN ATOMIC ENERGY REMOVE THE WASTE FROM OES.

70. AT THE TIME OF EQUIPMENT DESPATCH, A FULL REPORT IS SUBMITTED TO THE CLIENT WITH ALL RELEVANT DOCUMENTATION. THIS TYPICALLY INCLUDES : EQUIPMENT / PART RECORDS WORK SUMMARY DISMANTLING DETAILS RADIATION ANALYSIS RESULTS FROM EACH STAGE IN THE PROCESS RADIATION SUMMARY QC DOCUMENTATION NORM WASTE DATA DECONTAMINATION CERTIFICATE