Multidimensional data repository for modeling oilfield operations

• US 9,228,415 B2
• Filed: 09/17/2009
• Issued: 01/05/2016
• Est. Priority Date: 10/06/2008
• Status: Expired due to Fees

• Current Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Original Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Inventors: Ingham, Jonathan, Howell, Andrew
• Primary Examiner(s): Rivas, Omar Fernandez
• Assistant Examiner(s): CALLE, ANGEL J.
• Application Number:
  US12/561,288
• Publication Number:
  US 20100088082A1
• Time in Patent Office: 2,301 Days
• Field of Search: 703/10, 703/5, 703/9, 707/803
• US Class Current: 1/1
• CPC Class Codes: E21B 41/00 Equipment or details not covered by groups E21B15/00 - E21B40/00
• CPC Class Codes: E21B 43/14 Obtaining from a multiple-zone well
• CPC Class Codes: G06F 16/283 Multi-dimensional databases or data warehouses, e.g. MOLAP or ROLAP
• CPC Class Codes: G06F 17/10 Complex mathematical operations function generation by table look-up G06F1/03; evaluation of elementary functions by calculation G06F7/544
• CPC Class Codes: G06F 2111/10 Numerical modelling
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Abstract

A method for performing oilfield operations including collecting a model data set from the oilfield for populating a location of a plurality of locations in a multidimensional data repository, the plurality of locations accessible based on a plurality of dimensions of the multidimensional data repository, performing, using a processor of a computer, analysis of at least the model data set retrieved from the location of the plurality of locations to generate a result, adjusting, using the processor, the multidimensional data repository based on the result, and adjusting the oilfield operations based on the multidimensional data repository.

Claims

1. A method for performing oilfield operations comprising:

collecting a model data set from an oilfield for populating a location of a plurality of locations in a multidimensional data repository, the plurality of locations accessible based on a plurality of dimensions of the multidimensional data repository, wherein the plurality of dimensions includes at least first, second and third dimensions, each of which separately categorizing the model data set, wherein the first dimension categorizes the model data set into one of a first plurality of categories, the second dimension categorizes the model data set into one of a second plurality of categories, and the third dimension categorizes the model data set based upon a scenario associated with the model data set;

performing, using a processor of a computer system, analysis of at least the model data set retrieved from the location of the plurality of locations to generate a result;

adjusting, using the processor, the multidimensional data repository based on the result;

adjusting the oilfield operations based on the multidimensional data repository; and

in response to addition of a new scenario;

expanding the multidimensional data repository along the scenario dimension to include a new set of locations organized along the first and second dimensions;

populating at least a first location in the new set of locations with data already available in the multidimensional data repository;

populating at least a second location in the new set of locations with new data; and

performing analysis for the new scenario using data from at least one of the first and second locations in the new set of locations.

2. The method of claim 1, wherein the plurality of locations are accessible for reading, writing, modifying, and deleting.

3. The method of claim 1, wherein performing analysis comprises selectively performing, based on a pre-determined criteria, at least one selected from a group consisting of probabilistic modeling and deterministic modeling.

4. The method of claim 3, wherein the pre-determined criteria is based on at least one selected from a group consisting of processing time for performing the analysis, computing resources for performing the analysis, accuracy of the result, and sensitivity of the result with respect to an uncertainty parameter.

5. The method of claim 1, further comprising:

revising the analysis to generate an adjusted result using an oilfield application external to the multidimensional data repository;

storing the adjusted result in at least one selected from a group consisting of a vacant location of the plurality of locations and a new location added to the plurality of locations.

6. The method of claim 5, further comprising:

generating a proxy model based on the adjusted result to emulate the oilfield application; and

substituting the oilfield application with the proxy model in the multidimensional data repository.

7. The method of claim 6, further comprising:

storing the proxy model in at least one selected from a group consisting of a vacant location of the plurality of locations and a new location added to the plurality of locations.

8. The method of claim 7, further comprising:

performing at least one selected from a group consisting of optimization and course of action analysis using the proxy model.

9. The method of claim 1, wherein the first dimension categorizes the model data set into one of the first plurality of categories based upon an algorithm associated with the model data set.

10. The method of claim 9, wherein the first plurality of categories includes at least one category selected from the group consisting of deterministic modeling, decision/risk analysis, probabilistic modeling or tracking/audit.

11. The method of claim 1, wherein the second plurality of categories includes at least one category selected from the group consisting of a subsurface category, an engineering category, an economics category or a commercial category.

12. The method of claim 1, wherein the scenario dimension categorizes the model data set into one of a plurality of what if scenarios.

13. The method of claim 1, wherein the plurality of dimensions includes a fourth dimension selected from the group consisting of a standard measurement dimension, an uncertainty dimension, a time dimension, or a look back dimension.

14. A non-transitory computer readable medium, embodying instructions executable by a computer to perform oilfield operations, the instructions when executed by the computer comprising functionality for:

collecting a model data set from an oilfield for populating a location of a plurality of locations in a multidimensional data repository, the plurality of locations accessible based on a plurality of dimensions of the multidimensional data repository, wherein the plurality of dimensions includes at least first, second and third dimensions, each of which separately categorizing the model data set, wherein the first dimension categorizes the model data set into one of a first plurality of categories, the second dimension categorizes the model data set into one of a second plurality of categories, and the third dimension categorizes the model data set based upon a scenario associated with the model data set;

performing analysis of at least the model data set retrieved from the location of the plurality of locations to generate a result;

revising the analysis to generate an adjusted result using an oilfield application external to the multidimensional data repository;

adjusting the multidimensional data repository based on the adjusted result;

adjusting the oilfield operations based on the multidimensional data repository; and

in response to addition of a new scenario;

expanding the multidimensional data repository along the scenario dimension to include a new set of locations organized along the first and second dimensions;

populating at least a first location in the new set of locations with data already available in the multidimensional data repository;

populating at least a second location in the new set of locations with new data; and

performing analysis for the new scenario using data from at least one of the first and second locations in the new set of locations.

15. The computer readable medium of claim 14, the instructions when executed by the computer further comprising functionality for:

generating a proxy model based on the adjusted result to emulate the oilfield application; and

substituting the oilfield application with the proxy model in the multidimensional data repository.

16. The computer readable medium of claim 15, the instructions when executed by the computer further comprising functionality for:

storing the proxy model in at least one selected from a group consisting of a vacant location of the plurality of locations and a new location added to the plurality of locations.

17. The computer readable medium of claim 16, the instructions when executed by the computer further comprising functionality for:

performing at least one selected from a group consisting of optimization and course of action analysis using the proxy model.

18. The computer readable medium of claim 14, wherein performing analysis comprises selectively performing, based on a pre-determined criteria, at least one selected from a group consisting of probabilistic modeling and deterministic modeling.

19. The computer readable medium of claim 14, wherein the pre-determined criteria is based on at least one selected from a group consisting of processing time for performing the analysis, computing resources for performing the analysis, accuracy of the result, and sensitivity of the result with respect to an uncertainty parameter.

20. A system for performing oilfield operations comprising:

a processor; and

memory storing instructions when executed by the processor comprising functionality for;

collecting a model data set from an oilfield for populating a location of a plurality of locations in a multidimensional data repository, the plurality of locations accessible based on a plurality of dimensions of the multidimensional data repository, wherein the plurality of dimensions includes at least first, second and third dimensions, each of which separately categorizing the model data set, wherein the first dimension categorizes the model data set into one of a first plurality of categories, the second dimension categorizes the model data set into one of a second plurality of categories, and the third dimension categorizes the model data set based upon a scenario associated with the model data set;

performing analysis of at least the model data set retrieved from the location of the plurality of locations to generate a result;

adjusting the multidimensional data repository based on the result;

adjusting the oilfield operations based on the multidimensional data repository; and

in response to addition of a new scenario;

expanding the multidimensional data repository along the scenario dimension to include a new set of locations organized along the first and second dimensions;

populating at least a first location in the new set of locations with data already available in the multidimensional data repository;

populating at least a second location in the new set of locations with new data; and

performing analysis for the new scenario using data from at least one of the first and second locations in the new set of locations.

21. The system of claim 20, further comprising:

a surface unit comprising the processor and the memory;

sensors disposed about the oilfield and coupled to the surface unit for monitoring parameters during the oilfield operations to generate at least a portion of the model data set; and

a real-time control equipment coupled to the surface unit for adjusting the oilfield operations based on the multidimensional data repository.

22. The system of claim 20,

wherein performing analysis comprises selectively performing, based on a pre-determined criteria, at least one selected from a group consisting of probabilistic modeling and deterministic modeling, and

wherein the pre-determined criteria is based on at least one selected from a group consisting of processing time for performing the analysis, computing resources for performing the analysis, accuracy of the result, and sensitivity of the result with respect to an uncertainty parameter.

23. The system of claim 20, further comprising an oilfield application external to the multidimensional data repository,

wherein the instructions when executed by the processor further comprising functionality for:

revising the analysis to generate an adjusted result using the oilfield application external to the multidimensional data repository;

storing the adjusted result in at least one selected from a group consisting of a vacant location of the plurality of locations and a new location added to the plurality of locations.

24. The system of claim 23, wherein the instructions when executed by the processor further comprising functionality for:

generating a proxy model based on the adjusted result to emulate the oilfield application;

storing the proxy model in at least one selected from a group consisting of a vacant location of the plurality of locations and a new location added to the plurality of locations; and

performing at least one selected from a group consisting of optimization and course of action analysis using the proxy model.

25. The system of claim 20, further comprising:

at least one system selected from a group consisting of survey system, drilling system, wellbore logging system, production system, surface network, production facility, transport/distribution system, and consumer marketing system,

wherein the at least one system is selectively adjusted based on the multidimensional data repository.