COMBINING RESERVOIR MODELING WITH DOWNHOLE SENSORS AND INDUCTIVE COUPLING

• US 20090182509A1
• Filed: 12/12/2008
• Published: 07/16/2009
• Est. Priority Date: 11/27/2007
• Status: Active Grant

• Current Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Original Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Inventors: Lovell, John R., Brown, George Albert, Kimminau, Stephen J.
• Granted Patent: US 8,121,790 B2
• Time in Patent Office: Days
• US Class Current: 702/11
• CPC Class Codes: E21B 47/06 Measuring temperature or pressure
• CPC Class Codes: E21B 49/00 Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

A method is disclosed of characterizing a well using a series of measurements taken along the sandface of that well in order to optimize a well model. The method may comprise providing a well model with a plurality of adjustable physical parameters, providing a data set made up of a plurality of sandface measurements, and running the well model with different combinations of adjustable physical parameters so that the results of the well model substantially match the results of the sandface measurements. In one embodiment, the method may comprise creating a communication pathway between the surface and the sandface including an inductive coupler. A further step may include pre-processing the plurality of the sandface measurements. In addition, a further step may be to establish or set at least one control device in order to change the flow characteristics of the production fluid in the well.

Claims

1. A method of characterizing a well using a series of measurements along the sandface of said well to optimize a well model, comprising:

providing a well model with a plurality of adjustable physical parameters;

providing a data set made up of a plurality of sandface measurements; and

running the well model with different combinations of the plurality of adjustable physical parameters to match to the plurality of sandface measurements.

2. The method of claim 1 wherein the series of measurements are distributed temperature measurements made along an optical fiber.

3. The method of claim 1 further comprising:

establishing a communication pathway between the surface and the sandface via a communication device.

4. The method of claim 3 wherein the communication pathway includes at least one inductive coupler.

5. The method of claim 1 further comprising:

automated pre-processing of the plurality of sandface measurements.

6. The method of claim 5 wherein the automated pre-processing step includes correcting for depth.

7. The method of claim 5 wherein the automated pre-processing step includes reducing sandface measurement noise.

8. The method of claim 7 wherein the sandface measurement noise is reduced via a median filter.

9. The method of claim 1 wherein the well model includes a model of temperature and flow properties.

10. The method of claim 1 wherein the step of providing a well model comprises providing a reservoir model.

11. The method of claim 1 wherein the well is one of multiple wells within a reservoir.

12. The method of claim 1 wherein the well contain devices which control or restrict the flow across a zone.

13. A method of characterizing a well using a series of measurements along the sandface of said well to optimize a well model, comprising the steps of:

(a) providing at least one control device configured to alter flow characteristics of a production fluid in the well;

(b) providing a well model with a plurality of adjustable physical parameters;

(c) acquiring a plurality of sandface measurements establishing a data set;

(d) running the well model with different combinations of the plurality of adjustable physical parameters until results from the well model substantially correlate to results from the data set;

(e) changing the setting of at least one flow control device and acquiring a new plurality of sandface measurements establishing a new data set; and

(f) repeating steps (d) and (e).

14. The method of claim 13, further comprising setting the at least one control device at the earth'"'"'s surface.

15. The method of claim 14, wherein at least one of the at least one control device is a choke.

16. The method of claim 13, further comprising setting the at least one control device in the well.

17. The method of claim 13, wherein the series of measurements are distributed temperature measurements made along an optical fiber.

18. The method of claim 13, further comprising:

automated pre-processing of the plurality of sandface measurements.

19. The method of claim 18, wherein the automated pre-processing step includes correcting for depth.

20. The method of claim 18, wherein the automated pre-processing step includes reducing sandface measurement data noise.