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

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Presentation on theme: "TEMPERATURE AND NOISE LOGGING IN RESERVOIR FLOW EVALUATION Take a look behind the casing …"— Presentation transcript:

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

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

3 -excess temperature: (r, z, t) = T (r, z, t) T g (z) - heat transfer equation: t >0, r >r c, z < z

4 Example

5 Conventional temperature High precision temperature TITSTDTSTDTI Matches with perforation interval Doesnt match with perforation interval Channeling No injection below Shift >10м Sensor at bottom of tool-string Time response < 1 sec Sensor in middle of tool-string Time response > 1 sec Conventional vs High Presicion

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

7 Spinner Temperature Producer. SHPT vs PLT

8 Spinner Temperature Injector. SHPT vs PLT

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

10 Fracture Non uniform Injection OWC Rise or ConingChanneling Type library

11

12 PLT SHPT OWC Bypassed oil SHPT vs PLT 3D simulation

13 OIL & GAS SERVICES Spectral Noise Logging Tool ParameterValue Operating frequency range, Hz – 30,000 Frequency resolution, Hz Number of frequency channels512 Noise measurement range, dB 30–130 Maximum ambient operating pressure, MPa 60 Operating temperature range, degC Reading Mode – Memory Temperature range – 125 o C (253 o F) Pressure Range – 60 MPa

14 Noise Spectrum is defined by console/reservoir structure 1 kHz SNL Physics [m]Diameter of console [m]Length of console [Pa]Youngs modulus of consoles material [kg/m 3 ]Density of consoles material Large consoles Low frequencies Small consoles High frequencies

15 FracturesChannels Faults Perfs Orifice Leaks SSD X-NIPPEL Mandrels Casing Tubing Regular matrix Tight matrix Super-tight Matrix SNL Frequency

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

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

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

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

20 Injector. SNL vs PLT

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

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

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

24 InjectorObserverProducer T SNL

25 OIL & GAS SERVICES The End

26 Open Hole – SNL3 vs conventional NL narrow wings wide wings


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