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TEMPERATURE AND NOISE LOGGING IN RESERVOIR FLOW EVALUATION

TEMPERATURE AND NOISE LOGGING IN RESERVOIR FLOW EVALUATION. Take a look behind the casing …. SPINNER. Scanning Radius. CBL. > 1 m. BLIND THRU TUBING. C/O. WFL. SIGMA. Spectral Noise Log. ~ 3 m. ~ 1 m. Dynamic HPT. Static HPT. > 3 m. Physics. - heat transfer equation:.

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TEMPERATURE AND NOISE LOGGING IN RESERVOIR FLOW EVALUATION

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  1. TEMPERATURE AND NOISE LOGGING IN RESERVOIR FLOW EVALUATION Take a look behind the casing …

  2. SPINNER Scanning Radius CBL > 1 m BLIND THRU TUBING C/O WFL SIGMA Spectral Noise Log ~ 3 m ~ 1 m Dynamic HPT Static HPT > 3 m

  3. Physics - heat transfer equation: t >0, r >rc , z < z <z + • excess temperature: • (r, z, t) = T (r, z, t) Tg(z) -boundary conditions: a) flowing b) shut-in

  4. Example

  5. Shift>10м Matches with perforation interval Doesn’t match with perforation interval Channeling No injection below Conventional vs High Presicion High precision temperature Conventional temperature TI TD TS TI TD TS • Sensor at bottom of tool-string • Time response < 1 sec • Sensor in middle of tool-string • Time response > 1 sec

  6. SHPT areal plot Active Producer Shut-in Producer TG Injectors

  7. Producer.SHPT vs PLT Spinner Temperature

  8. Injector. SHPT vs PLT Spinner Temperature

  9. Producer. SHPT vs SIGMA High BSW SIGMA = 50% sweep SHPT = bypassed oil Active channeling Current OWC or Coning

  10. Type library Fracture Non uniform Injection OWC Rise or Coning Channeling

  11. SHPT vs PLT 3D simulation Bypassed oil OWC PLT SHPT

  12. Spectral Noise Logging Tool OIL & GAS SERVICES • Reading Mode – Memory • Temperature range – 125oC (253oF) • Pressure Range – 60 MPa

  13. SNL Physics 1 kHz Noise Spectrum is defined by console/reservoir structure Large consoles  Low frequencies Small consoles  High frequencies

  14. SNL Frequency Casing Tubing SSD X-NIPPEL Mandrels Perfs Orifice Leaks Channels Faults Fractures Regular matrix Tight matrix Super-tight Matrix

  15. How to read SNL panel… Sketch Bore hole Flow Fracture Flow Reservoir Matrix Flow Casing Perfs Channel Macrofrac Regular matrix Tight porous Super-tight porous

  16. OIL & GAS SERVICES Producer. SNL + PLT Bore hole flow Fracture flow ? Reservoir Matrix flow Channeling

  17. OIL & GAS SERVICES Producer. SNL + PLT. Zoom Bore hole flow Fracture flow Reservoir Matrix flow Channeling

  18. Producer. SNL + PLT. Communication. Zoom Bore hole flow Fracture flow Reservoir Matrix flow Channeling

  19. Injector. SNL vs PLT

  20. Injector. SNL + HPT + PLT. Communication Thief injection Injection Water Override Matrix flow

  21. Observer. SNL + HPT. Lateral flow Reservoir Matrix flow

  22. Open Hole – monitor drilling losses OIL & GAS SERVICES Matrix flow Fractures survived Matrix killed X X Matrix flow Fracture flow X X Flow shut-down

  23. Observer Injector Producer T SNL T SNL T SNL

  24. OIL & GAS SERVICES The End www.tgtoil.com

  25. Open Hole – SNL3 vs conventional NL wide wings narrow wings

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