PDO NORM Storage FacilitiesPDO NORM Storage Facilities

Ahmed Al-SabahiAhmed Al-Sabahi

Corporate Environmental AdvisorCorporate Environmental Advisor

PDO NORM Storage FacilitiesPDO NORM Storage Facilities

PDO Has two Storage facilities:PDO Has two Storage facilities:Zualayah Storage areaZualayah Storage areaBahja Storage FacilityBahja Storage Facility

Storage of Radioactive Materials Storage of Radioactive Materials SP-1170SP-1170

All NORM contaminated items or materials must be taken All NORM contaminated items or materials must be taken to the PDO designated storage site in Zauliyah as soon to the PDO designated storage site in Zauliyah as soon as reasonably practicable. The NORM storage area as reasonably practicable. The NORM storage area must comply with the following:must comply with the following:– The NORM storage areas must be protected with proper fencing The NORM storage areas must be protected with proper fencing

and security so that uncontrolled entry is not possible.and security so that uncontrolled entry is not possible.– There must be proper signage (pictorial and written in English There must be proper signage (pictorial and written in English

and Arabic) around the fence so that the hazards are understood and Arabic) around the fence so that the hazards are understood by everybody.by everybody.

– A contour of dose rates for the site shall be available through the A contour of dose rates for the site shall be available through the supervisor. supervisor.

– People who are given access to the site are briefed on the People who are given access to the site are briefed on the location of hazards.location of hazards.

– The key for access to the site must only be issued to authorised The key for access to the site must only be issued to authorised personnel and must be signed out and back into the custodian’s personnel and must be signed out and back into the custodian’s control.control.

– The dose rate outside atThe dose rate outside at the fence of the fence of the storage facility shall not the storage facility shall not exceed 2.5exceed 2.5 1 1 Sv/hr.Sv/hr.

Zauliyah Storage FacilityZauliyah Storage Facility

In 1994 a pig sample from Hasirah – Zauliyah In 1994 a pig sample from Hasirah – Zauliyah line was found to have radioactive reading line was found to have radioactive reading above background level above background level comprehensive survey for Naturally occurring comprehensive survey for Naturally occurring radioactive material (NORM) was conducted in radioactive material (NORM) was conducted in Zauliyah station Zauliyah station high contamination reading were observed and high contamination reading were observed and materials.materials.This discovery lead to have a NORM storage This discovery lead to have a NORM storage area in Zauliyah. area in Zauliyah.

What we are storing in ZualiyahWhat we are storing in Zualiyah

TubularsTubulars

Contaminated Sludge ( in Drums).Contaminated Sludge ( in Drums).

X-Mass treesX-Mass trees

CablesCables

Scrap metalsScrap metals

The NORM radioactive material prior to being placed in The NORM radioactive material prior to being placed in the storage were cemented and solidified, in thick the storage were cemented and solidified, in thick numbered steel drums and transferred to an enclosed, numbered steel drums and transferred to an enclosed,

top open wall (10L*15W*1.5Htop open wall (10L*15W*1.5H) )

Zauliyah NORM Storage Yard

10” -Zualiyah- Sahmah line

6” Sahmah -Zualiyah line

8” Hasirah -Zualiyah line

Drainage pit

TANKMAIN GATE

Contaminated tubulars- Total number-2675End capped and parts that are rusted covered with polyethylene

Water disposal line

NORM Storage Yard

Some of the drums in the StorageSome of the drums in the Storage

Contaminated tubular from Zauliyah –5Contaminated tubular from Zauliyah –5

Present NORM Storage FacilityPresent NORM Storage Facility

AD Hoc facility set up in ZauliyaAD Hoc facility set up in ZauliyaDoes not meet required standards or Does not meet required standards or specificationsspecificationsLicensed but threat of license revocation Licensed but threat of license revocation exists due to standards breaches.exists due to standards breaches.Increasing quantities have increased dose Increasing quantities have increased dose rate to dangerous levelsrate to dangerous levelsRAC (Radiation Advisory Committee RAC (Radiation Advisory Committee Approved Setting up permanent facilityApproved Setting up permanent facility

LEKHWAIR

HASIRAH- ZAULIYAH LINE-CONTAMINATED LINE

= 60 c/s

NORM TRACES

NORM AREA

Oil pi pel in e

Gas pi pe lin e

LE G E N D

NORM TRACES

NORM AREA

MAFNORM CONTAMINATION = 0 c/sDose rate = <0.10Sv/hRADON in Gas = 61 Bq/m3

NORM CONTAMINATION =10 c/sDose Rate= 0.11-0.29Sv/hRADON in Gas= 66Bq/m3

NORM CONTAMINATION

= 60 c/sDose Rate= 0.22-0.27Sv/hRADON in Gas= 435Bq/m3

NORM CONTAMINATION

= 0 c/sDose Rate= <0.12Sv/hRADON in Gas= 407Bq/m3

NORM CONTAMINATION

= 60 c/sDose Rate= 0.25-0.50Sv/hRADON in Gas= 107Bq/m3

NORM CONTAMINATION = 0 c/sDOSE RATE = <0.12mSv/hRADON IN GAS = 260Bq/m3

NORM CONTAMINATION

= 20 c/sDOSE RATE = 0.12-0.15Sv/hRADON IN GAS = 43Bq/m3

NORM CONTAMINATION \

= 15 c/sDOSE RATE= 0.12Sv/hRADON IN GAS= 46Bq/m3

NORM CONTAMINATION = 30 c/sDose Rate= <0.18-0.24Sv/hRADON in Gas = 53 Bq/m3

NORM CONTAMINATION= 20 c/sDose Rate = 0.12-0.25Sv/hRADON in Gas - N/D

NORM CONTAMINATION

= 0 c/sDOSE RATE = <0.12Sv/hRADON IN GAS= 47Bq/m3

NORM CONTAMINATION= 400 c/sDose Rate = <0.33-0.47Sv/hLKH-128L=660 Bq/gLPS-T-2612=260Bq/g

NORM CONTAMINATION = 20 c/sDOSE RATE = 0.12-0.25Sv/hRADON IN GAS - 66

NORM CONTAMINATION= 0 c/sDOSE RATE= <0.12 Sv/hRADON IN GAS - 86Bq/M3

NORM CONTAMINATION = 18c/sDOSE RATE = 0.19-0.25mSv/hRADON IN GAS =317 Bq/M3

NORM CONTAMINATION

= 2500 c/sDOSE RATE = 1.99-2.40mSv/h

RADON IN GAS -44Bq/M3 ZL-5 =592 Bq/g

NORM CONTAMINATION

= 20 c/sDOSE RATE= 0.15-0.20mSv/h

NORM CONTAMINATION = 60 c/sDOSE RATE = 0.15-0.18Sv/h

NORM CONTAMINATION= 0 c/sDOSE RATE = <0.12 Sv/hRADON in Gas= 430Bq/m3

NORM DESIGNATED AREA-PDO

G.NORTH

QALN-ALARM

AL-GHUBARA

ANZAUZ

WAFRA

SUWAIHATSAYYALA

ZAULIYAHHASIRAH

LAST UP DATED ON 24/02/99 - Compiled and prepared by RASHID AL-ZAKWANI-TKL2B Interior-Radiation-Focal-point

WAFRA-10 = 1110Bq/g

Specifications.

NORM contamination- reading 3 times the back-ground on the contamination meter is a NORM trace or NORM suspect area.-

NORM area - Area confirmed to have materials with quantitative radioactive level of more than 100 Bq/g

Dose rate-Accepted limit is below 2.5Sv/h PPE should be used when dose rate is above 7.5Sv/h.

Contamination reading are back-ground subtracted

Note-NORM traces area,procedures must be followed

c/s-counts/seconds

Bq/g -Becquerel/ grams

Bq/m3-Becquel/ cubic meter

Sv/h - Sievart/hour

BAHJA

DHULAIMA

Mazoon

FAHUD

NATIH

YIBAL

AL HUWAISAH

MUSALLIM

TAWF DAHM

SAIHNUHAYDA

SAIH RAWL

MABROUK

BARIK

MUKHAIZNASADAD

NIMR

AMIN SIMSIM

AMAL

AL BURJ

MARMUL

RAHABTHULEILAT

QAHARIR

Issues Due to Lack of NORM Issues Due to Lack of NORM StorageStorage

Many Tanks cleaning delayedMany Tanks cleaning delayed

Mounting Inventory of NORM materialsMounting Inventory of NORM materials

Non compliance to HSE-MS or ISO-14001Non compliance to HSE-MS or ISO-14001

Potentially serious HSE risksPotentially serious HSE risks

Present NORM InventoryPresent NORM Inventory

Expected drums = 7000-8000Expected drums = 7000-8000

Down hole equipments = 40 – 50 pieces (about Down hole equipments = 40 – 50 pieces (about 4 meters length)4 meters length)

Tubing’s (3/4”) = 20000 pieces.Tubing’s (3/4”) = 20000 pieces.

Pipes = 50 pieces (different sizes and lengths).Pipes = 50 pieces (different sizes and lengths).

X- Mass trees = 10 pieces.X- Mass trees = 10 pieces.

Cables ( down hole work) = 3000mCables ( down hole work) = 3000m

Suspected NORM Sludge = 1500m³Suspected NORM Sludge = 1500m³

NORM StrategyNORM Strategy

Storage Facilities in Bahja as per SP-1170Storage Facilities in Bahja as per SP-1170

MRME constructing NORM disposal MRME constructing NORM disposal facility in 2 yearsfacility in 2 years

Operation of facility to be managed by Operation of facility to be managed by Waste Management ContractorWaste Management Contractor

Storage Facility DetailsStorage Facility DetailsTotal Area – 400m x 400mTotal Area – 400m x 400mAll the area should be linedAll the area should be linedTemporary storage for the incoming sludgeTemporary storage for the incoming sludgeToiletsToiletsEquipment & PPE StoreEquipment & PPE StoreDrummed sludge only - (50 m x 25 m x 0.4 m Drummed sludge only - (50 m x 25 m x 0.4 m area)area)Contaminated equipment (tubulars, esp’s) - (50 m Contaminated equipment (tubulars, esp’s) - (50 m x 25 m area)x 25 m area)Scrap material/metals (50 m x 25 m area)Scrap material/metals (50 m x 25 m area)Dedicated concrete pits for storage of liquid/bulk Dedicated concrete pits for storage of liquid/bulk sludge from tanks (100m*100m*1m)sludge from tanks (100m*100m*1m)

NORM facility

Rest Room & Toilet

Scrap metal50m x 25m

Drum storage50m x 25m

400 m

400 m

Entrance

gate

* Concrete pad100 m x 50 m

Tublars50m x 25m

2 PitsSludge Storage100m*10m*1m depth Source Pit

Note:- * Not decided yet due to change in design basis. CSM32 to advise

Project PhasesProject PhasesPhase 1 project started in June & was completed in August Phase 1 project started in June & was completed in August 2004 as per agreed plan.2004 as per agreed plan.– Preparation of the sitePreparation of the site– Fencing of the siteFencing of the site

Phase 2 under construction and target completion Dec.’04.Phase 2 under construction and target completion Dec.’04.– Two HDPE lined pits being builtTwo HDPE lined pits being built– Tubular AreaTubular Area– Metal AreaMetal Area– Drum YardDrum Yard– Source PitSource Pit– ToiletsToilets

Phase3 will be mid June 2005 and it will includePhase3 will be mid June 2005 and it will include

– for additional 4 pits & decontamination areafor additional 4 pits & decontamination area– Initiate development of decontamination facilityInitiate development of decontamination facility– Determine and agree on long term disposal options Determine and agree on long term disposal options

for NORMfor NORM– Tender out the design for the decontamination Tender out the design for the decontamination

facilityfacility

1st PIT

2nd PIT

TUBALAR AREA

METAL AREA

DRUMS YARD

SOURCE PIT

Rest RoomRest Room