Produced Water TreatmentProduced Water TreatmentSystemSystem

Presented byPresented by

Khalid M IdrissKhalid M Idriss

KEYI FPFKEYI FPF

Presentation about:Presentation about:

Presentation OutlinePresentation Outline

Review of:Review of: Process Flow DiagramProcess Flow Diagram Piping & Instrumentation DiagramPiping & Instrumentation Diagram Processes descriptionProcesses description Challenges Challenges Q & AQ & A

Main objective of the SystemMain objective of the System

The main objective of Produced Water The main objective of Produced Water Treatment System is to remove the oil in the Treatment System is to remove the oil in the water.water.

Produced Water Treatment System Produced Water Treatment System

The produced water system has capacity to handle 30,000 The produced water system has capacity to handle 30,000 BLPD of “Oily Water”. BLPD of “Oily Water”.

The produced water treatment system will consist of the The produced water treatment system will consist of the following: following:

Produced Water skim Tanks (2000 Produced Water skim Tanks (2000 m3m3))

complete with water level control box system complete with water level control box system (TK-6601A/B) (TK-6601A/B)

Skimmed Oil Vessel, 30Skimmed Oil Vessel, 30m3m3,(V-6601) ,(V-6601) Skimmed Oil Pumps, 5Skimmed Oil Pumps, 5m3/hrm3/hr, P-6601 A/B, P-6601 A/B Water Injection tank, 1000Water Injection tank, 1000m3m3, TK-6602 , TK-6602 Water injection pumps, 100 Water injection pumps, 100 m3/hrm3/hr, P-6603 A/B/C , P-6603 A/B/C

Produced Water Treatment PFDProduced Water Treatment PFD

1.1Produced Water Treatment1.1Produced Water Treatment

Produced Water skim TanksProduced Water skim TanksDesign specification:Design specification:Size: 15700 (ID) x10290 (H)Size: 15700 (ID) x10290 (H)

Capacity:2000m3Capacity:2000m3

OP:ATMOP:ATM

DT:DT:9393 ˚̊cc

OT:55 OT:55 ˚̊cc

1.1Produced Water Treatment1.1Produced Water Treatment Produced water from First Stage Production Produced water from First Stage Production

Separators (PK-6201A/B) and Second Stage Production Separators (PK-6201A/B) and Second Stage Production Separators (PK-6202A/B) is treated in Produced Water Separators (PK-6202A/B) is treated in Produced Water Skim Tanks (TK-6601A/B). These skim Tanks with a Skim Tanks (TK-6601A/B). These skim Tanks with a central reaction column uses gravity separation method central reaction column uses gravity separation method to reduce the oil content of water from 1000 to reduce the oil content of water from 1000 ppmppm (normal) (normal) to about 100 to about 100 ppmppm at the outlet of the tank. The Produced at the outlet of the tank. The Produced Water Tanks is an atmospheric storage tank of 2000 Water Tanks is an atmospheric storage tank of 2000 mm33 capacity each based on the produced water effective capacity each based on the produced water effective retention time of 18 hours with both the tanks. The tanks retention time of 18 hours with both the tanks. The tanks operate at atmospheric pressure and remove the oil operate at atmospheric pressure and remove the oil entrained in water. entrained in water.

The skimmed oil flows by gravity to Skimmed Oil Vessel The skimmed oil flows by gravity to Skimmed Oil Vessel (V-6601) and is pumped back by skimmed oil pumps, P-(V-6601) and is pumped back by skimmed oil pumps, P-6601A/B to the crude oil system for reprocessing. 6601A/B to the crude oil system for reprocessing.

Produced Water skim TanksProduced Water skim Tanks

1.2 Water Injection1.2 Water Injection The produced water from Skim tanks flows by gravity The produced water from Skim tanks flows by gravity

to the Water Injection Tank (TK-6602) and is pumped to to the Water Injection Tank (TK-6602) and is pumped to water injection well (INJ-2) and OGM3 by Water Injection water injection well (INJ-2) and OGM3 by Water Injection Pumps,P-6603A/B/C.Out of three Water Injection Pumps,P-6603A/B/C.Out of three Water Injection Pumps, two running and one standby during normal Pumps, two running and one standby during normal operation. The Water Injection Pumps should be operation. The Water Injection Pumps should be centrifugal multi stage type, and shall be of 100centrifugal multi stage type, and shall be of 100m3/hrm3/hr (15,096(15,096BLPDBLPD) capacities with 10) capacities with 10MPaMPa pressure differential. pressure differential. The water injection flow rate shall be (7,500The water injection flow rate shall be (7,500BWPD)BWPD) for for each well and metered by installed flow measurement each well and metered by installed flow measurement unit.unit.

The operating capacity of water injection system is The operating capacity of water injection system is 30,000 30,000 BWPDBWPD with 10 with 10MPaMPa injection pressure and the total injection pressure and the total produced water is injected to injection wells.produced water is injected to injection wells.

Water InjectionWater Injection

1.3 Waste Water Treatment System1.3 Waste Water Treatment System During Produced Water tank maintenance or During Produced Water tank maintenance or

if there is excess produced water from Produced if there is excess produced water from Produced Water tanks, the Produced Water can flows by Water tanks, the Produced Water can flows by gravity to a wastewater retention pond having gravity to a wastewater retention pond having capacity of 200capacity of 200m3m3, M-6603, and evaporation , M-6603, and evaporation pond having capacity of 40,000pond having capacity of 40,000m3m3, M-6604., M-6604.

Floating oil skimmer, M-6602, shall be provided Floating oil skimmer, M-6602, shall be provided in the retention pond to collect traces of oil in the retention pond to collect traces of oil separated in the retention pond. The oil separated in the retention pond. The oil recovered from the pond will be pumped back to recovered from the pond will be pumped back to the drain sump by the portable skim oil pump,P-the drain sump by the portable skim oil pump,P-6602. Maximum oil content in the waste water 6602. Maximum oil content in the waste water will be 10will be 10ppmppm..

Waste Water Treatment SystemWaste Water Treatment System

ChallengesChallenges

Performance of oil-water separationPerformance of oil-water separation Operating within design limitsOperating within design limits Environmental pollutionEnvironmental pollution

Q & AQ & A