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Sparrow Field- Presentation

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Field Development exercise on the Sparrow Field NS

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Sparrow Field- Presentation

  1. 1. FIELD INFORMATION: Field Location- North Sea (80 km from East Coast of Scotland) Water Depth- 200 m Proved Oil- 3.1 MMM bbls Gas Reserves-241 bcm Field Discovered- 2007 STOIIP- 400 MMM bbl Reserves- 150 MMM bbls RF- 37.5 % Plateau Production Rate (per well)- 6000 BOPD per well Plateau Production Rate- 45000 BOPD (field for 8 wells) SPARROW FIELD- NORTH SEA Presentation by: Nya Parwon 15/LR/715/BSPE-S • Temperature July: Warmest Month -19 degrees Celsius February: Coldest Month – 3.1 degrees Celsius • Snow and Ice Expecting Snow layer of 250mm, Icebergs have never been observed  Storms: Rare, Sea level rise during storms is 0.6 metres maximum  Wind direction: 1500 – 3600 azimuth, average speed of 15knots.
  2. 2. CAPTAIN FIELD Daily Production Rate- 85000 bbl/d Development Scenarios- FPSO Export Strategy- Tanker Water Depth- 106.68 m Operator- Chevron Location- 144.8 km North Sea of Aberdeen Production Since- 1997 ROSS FIELD Daily Production Rate- 0.8Mstb/d (oil) & 1.5 M bbl/d (water) Development Scenarios- FPSO Export Strategy- Tanker Water Depth- 2700m- 3200m Operator- Talisman Location- 64 km from Aberdeen Production Since- 1999 NEIGHBORING FIELDS BEATRICE FIELD Daily Production Rate- 58640 bbl/ d Water Depth- 2100 m Development Scenarios- Platform (Bridge- Linked, Alpha Drilling+ Alpha Production) Export Strategy- Pipeline + Tanker Operator- Talisman Location- 24 km from North Sea BLAKE FIELD Daily Production Rate- 65000 bbl/d Development Scenarios- FPSO Export Strategy- Pipeline + Tanker Water Depth- 1584.96 m Operator- Talisman Energy, Intriped NS Ltd. & BG Location- 64 km from North Sea Production Since- 2001
  3. 3. DEVELOPMENT SCHEMES: (a) Drilling: • Jack up • Semi- submersible • Tension Leg Platform (b) Production Structures: • FPSO • Complaint Tower • Integrated Platforms (c) Treatment of Effluent: • Onshore treatment • Offshore treatment • Re- Injection of Gas (Cases of Secondary Enhancement) (d) Export Strategy: • Pipeline • Pipeline+ Tanker
  4. 4. PRODUCTION SCENARIOS : (Scenario A) Jack up + Complaint Tower + Offshore Treatment + Tankers to Processing Plant (Scenario B) Jack up + FPSO + Offshore Treatment + Tankers to Processing Plant (Scenario C) Semi- submersible + FPSO + Offshore Treatment + Tanker to Processing Plant
  5. 5. Source: Lecture Notes- Oil and Gas Field Development, by Mwije Nelson IUEA GUIDELINES FOR DEVELOPMENT STRATEGY RANKING
  6. 6. RANKING OF PRODUCTION SCENARIOS PARAMETERS WEIGHT SCENARIO A RANKING SCENARIO B RANKING SCENARIO C RANKING Water depth 3 1 2 3 CAPEX 5 1 3 2 OPEX 4 1 2 2 Concept maturity 3 1 1 1 Experience 3 2 2 3 Flow assurance 3 2 3 2 Dismantlement 2 3 1 2 Installation 4 3 1 2 Fabrication 3 3 2 3 First oil produce 2 2 2 3 Safety/security 4 3 2 2 Local content 2 3 3 3 Environment 3 3 2 3 TOTAL 41 85 83 95
  7. 7. RANKING CUMULATIVE COMPUTATION For Scenario A = Scenario A Tally Score/ Weight = 85/ 41 = 2.073 For Scenario B = Scenario B Tally Score/ Weight = 83/41 = 2.024 For Scenario C Scenario C Tally Score/ Weight = 95/ 41 =2.317
  8. 8. CONCLUSION & RECOMMENDATION From the ranking of scenarios, the best option for use in the Sparrow Field is Scenario C which yield a high computation than the other ranking scenarios. Hence, for purposes of field development and production, I recommend scenario C which consist of: • Semi- submersible + FPSO + Offshore Treatment + Tankers to Processing Plant

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