Produced water treatment_presentation


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Produced water treatment_presentation

  1. 1. Produced Water Treatment System Presented by Khalid M Idriss KEYI FPF Presentation about:
  2. 2. Presentation Outline <ul><li>Review of: </li></ul><ul><ul><li>Process Flow Diagram </li></ul></ul><ul><ul><li>Piping & Instrumentation Diagram </li></ul></ul><ul><ul><li>Processes description </li></ul></ul><ul><ul><li>Challenges </li></ul></ul><ul><ul><li>Q & A </li></ul></ul>
  3. 3. Main objective of the System <ul><li>The main objective of Produced Water Treatment System is to remove the oil in the water. </li></ul>
  4. 4. Produced Water Treatment System <ul><li>The produced water system has capacity to handle 30,000 BLPD of “Oily Water”. </li></ul><ul><li>The produced water treatment system will consist of the following: </li></ul><ul><li>Produced Water skim Tanks (2000 m3 ) </li></ul><ul><li>complete with water level control box system (TK-6601A/B) </li></ul><ul><li>Skimmed Oil Vessel, 30 m3 ,(V-6601) </li></ul><ul><li>Skimmed Oil Pumps, 5 m3/hr , P-6601 A/B </li></ul><ul><li>Water Injection tank, 1000 m3 , TK-6602 </li></ul><ul><li>Water injection pumps, 100 m3/hr , P-6603 A/B/C </li></ul>
  5. 5. Produced Water Treatment PFD
  6. 6. 1.1Produced Water Treatment <ul><li>Produced Water skim Tanks </li></ul><ul><li>Design specification: </li></ul><ul><li>Size: 15700 (ID) x10290 (H) </li></ul><ul><li>Capacity:2000m3 </li></ul><ul><li>OP:ATM </li></ul><ul><li>DT: 93 ˚ c </li></ul><ul><li>OT:55 ˚ c </li></ul>
  7. 7. 1.1Produced Water Treatment <ul><li>Produced water from First Stage Production Separators (PK-6201A/B) and Second Stage Production Separators (PK-6202A/B) is treated in Produced Water Skim Tanks (TK-6601A/B). These skim Tanks with a central reaction column uses gravity separation method to reduce the oil content of water from 1000 ppm (normal) to about 100 ppm at the outlet of the tank. The Produced Water Tanks is an atmospheric storage tank of 2000 m 3 capacity each based on the produced water effective retention time of 18 hours with both the tanks. The tanks operate at atmospheric pressure and remove the oil entrained in water. </li></ul><ul><li>The skimmed oil flows by gravity to Skimmed Oil Vessel (V-6601) and is pumped back by skimmed oil pumps, P-6601A/B to the crude oil system for reprocessing. </li></ul>
  8. 8. Produced Water skim Tanks
  9. 9. 1.2 Water Injection <ul><li>The produced water from Skim tanks flows by gravity to the Water Injection Tank (TK-6602) and is pumped to water injection well (INJ-2) and OGM3 by Water Injection Pumps,P-6603A/B/C.Out of three Water Injection Pumps, two running and one standby during normal operation. The Water Injection Pumps should be centrifugal multi stage type, and shall be of 100 m3/hr (15,096 BLPD ) capacities with 10 MPa pressure differential. The water injection flow rate shall be (7,500 BWPD) for each well and metered by installed flow measurement unit. </li></ul><ul><li>The operating capacity of water injection system is 30,000 BWPD with 10 MPa injection pressure and the total produced water is injected to injection wells. </li></ul>
  10. 10. Water Injection
  11. 11. 1.3 Waste Water Treatment System <ul><li>During Produced Water tank maintenance or if there is excess produced water from Produced Water tanks, the Produced Water can flows by gravity to a wastewater retention pond having capacity of 200 m3 , M-6603, and evaporation pond having capacity of 40,000 m3 , M-6604. </li></ul><ul><li>Floating oil skimmer, M-6602, shall be provided in the retention pond to collect traces of oil separated in the retention pond. The oil recovered from the pond will be pumped back to the drain sump by the portable skim oil pump,P-6602. Maximum oil content in the waste water will be 10 ppm . </li></ul>
  12. 12. Waste Water Treatment System
  13. 13. Challenges <ul><li>Performance of oil-water separation </li></ul><ul><li>Operating within design limits </li></ul><ul><li>Environmental pollution </li></ul>
  14. 14. <ul><li>Q & A </li></ul>
  15. 15. THANK YOU