Dynamic shape approximation

• US 8,774,468 B2
• Filed: 06/07/2010
• Issued: 07/08/2014
• Est. Priority Date: 09/08/2009
• Status: Expired due to Fees

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Johansen, Kjetil Vatland
• Primary Examiner(s): Chen, Wenpeng
• Application Number:
  US12/794,947
• Publication Number:
  US 20110058710A1
• Time in Patent Office: 1,492 Days
• Field of Search: None
• US Class Current: 382/109
• CPC Class Codes: G01V 1/32 Transforming one recording into another or one representation into another
• CPC Class Codes: G01V 2210/40 Transforming data representation

Abstract

Implementations of dynamic shape approximation are described. In one technique described herein, a feature of interest in a first coordinate reference system is accessed and at least a portion of the feature is identified and converted to a second coordinate reference system. In one implementation, the size of the portion is chosen such that the portion can be represented in the second coordinate reference system with an acceptable amount of error.

Claims

1. A method comprising:

providing a feature that comprises coordinates defined with respect to a first geospatial coordinate reference system;

displaying the feature on a monitor at an approximate location with respect to a second geospatial coordinate reference system; and

responsive to zooming, re-approximating the location of the feature with respect to the second geospatial coordinate reference system via a linearized curve, the linearized curve being determined in part by conversion of at least one of the coordinates of the feature defined with respect to the first geospatial coordinate reference system to at least one coordinate defined with respect to the second geospatial coordinate reference system.

2. The method of claim 1, wherein the linearized curve comprises a number of linear segments such that error between the re-approximated location of the feature and an actual location of the feature in the second geospatial coordinate reference system will not be visible given a resolution of the monitor on which the feature is displayed.

3. The method of claim 1, wherein the method is performed dynamically responsive to the zooming.

4. The method of claim 1, wherein the feature comprises data and further comprising:

caching at least a portion of the data as being located with respect to coordinates of the second coordinate reference system.

5. The method of claim 1 wherein the feature comprises a seismic line of a seismic volume.

6. The method of claim 5 wherein the seismic volume comprises a binning grid defined with respect to the first geospatial coordinate reference system.

7. The method of claim 6 wherein the binning grid is located proximate to a border between the first geospatial coordinate reference system and the second geospatial coordinate reference system.

8. A non-transitory computer-readable medium comprising a set of computer-readable instructions residing thereon that, when executed, direct a processor to initiate acts comprising:

accessing a feature that comprises coordinates defined with respect to a first geospatial coordinate reference system;

displaying the feature on a monitor at an approximate location with respect to a second geospatial coordinate reference system; and

responsive to zooming, re-approximating the location of the feature with respect to the second geospatial coordinate reference system via a linearized curve, the linearized curve being determined in part by conversion of at least one of the coordinates of the feature defined with respect to the first geospatial coordinate reference system to at least one coordinate defined with respect to the second geospatial coordinate reference system.

9. The non-transitory computer-readable medium of claim 8 comprising a set of computer-readable instructions that, when executed, perform acts further comprising selecting linear lengths to be used to form a linearized portion of the feature, such that each length has an acceptable conversion error when represented with respect to the second coordinate reference system.

10. The non-transitory computer-readable medium of claim 9 comprising a set of computer-readable instructions that, when executed, perform acts further comprising caching endpoints of the linear lengths expressed in terms of the second coordinate reference system.

11. The computer-readable non-transitory medium of claim 8 wherein the feature is a feature of a reservoir model.

12. The non-transitory computer-readable medium of claim 8 wherein the feature comprises data of a seismic volume that comprises a binning grid defined with respect to the first geospatial coordinate reference system.

13. The non-transitory computer-readable medium of claim 8 wherein the binning grid is located proximate to a border between the first geospatial coordinate reference system and the second geospatial coordinate reference system.

14. A system comprising:

a processor;

memory accessible by the processor; and

instructions stored in the memory, the instructions being executable by the processor to

access a feature that comprises coordinates defined with respect to a first geospatial coordinate reference system,

display the feature on a monitor at an approximate location with respect to a second geospatial coordinate reference system, and

responsive to receipt of a zoom instruction, re-approximate the location of the feature with respect to the second geospatial coordinate reference system via a linearized curve, the linearized curve being determined in part by conversion of at least one of the coordinates of the feature defined with respect to the first geospatial coordinate reference system to at least one coordinate defined with respect to the second geospatial coordinate reference system.

15. The system of claim 14 wherein the feature comprises a seismic line of a seismic volume.

16. The system of claim 15 wherein the seismic volume comprises a binning grid defined with respect to the first geospatial coordinate reference system.

17. The system of claim 16 wherein the binning grid is located proximate to a border between the first geospatial coordinate reference system and the second geospatial coordinate reference system.