Method and apparatus and program storage device adapted for visualization of qualitative and quantitative risk assessment based on technical wellbore design and earth properties

• US 7,630,914 B2
• Filed: 03/17/2004
• Issued: 12/08/2009
• Est. Priority Date: 03/17/2004
• Status: Active Grant

• Current Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Original Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Inventors: Givens, Kris, Veeningen, Daan
• Primary Examiner(s): DeCady; Albert
• Assistant Examiner(s): ROBERTSON, DAVID
• Application Number:
  US10/802,613
• Publication Number:
  US 20050209866A1
• Time in Patent Office: 2,092 Days
• Field of Search: 705/7, 705/38, 703/13, 703/17, 367/81, 367/82, 340/853.1, 340/853.3, 340/853.6, 175/24, 175/39, 175/40
• US Class Current: 705/7.28
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: G06Q 40/03 Credit; Loans; Processing thereof
• CPC Class Codes: G06Q 40/08 Insurance

Abstract

A method is disclosed for determining and displaying risk information in response to a plurality of input data, the input data including a plurality of input data calculation results, comprising the steps of: comparing each calculation result of the plurality of input data calculation results of the input data with each logical expression of a plurality of logical expressions; ranking by the logical expression the calculation result; and generating a plurality of ranked individual risks in response to the ranking step, each of the plurality of ranked individual risks representing an input data calculation result that has been ranked by the logical expression as having either a high risk severity or a medium risk severity or a low risk severity; generating the risk information in response to the plurality of ranked individual risks; and displaying the risk information, the displaying step including displaying the risk information on a risk information display.

Claims

1. A method of determining and displaying a risk assessment, comprising the steps of:

receiving a plurality of input data calculation results associated with a wellbore;

comparing each calculation result of said plurality of input data calculation results with each logical expression of a plurality of logical expressions to rank said calculation result; and

calculating a plurality of ranked individual risks extending along a depth of said wellbore in response to the ranking step, each of said plurality of ranked individual risks representing an input data calculation result that has been ranked by said logical expression as having a risk severity selected from a group consisting of a high risk severity, a medium risk severity, and a low risk severity;

generating risk information in response to said plurality of ranked individual risks;

displaying said risk information, the displaying step including displaying said risk information on a risk information display, said risk information display including a simultaneous display of said plurality of ranked individual risks calculated along said depth of said wellbore;

modifying a well design for said wellbore using said plurality of ranked individual risks; and

performing a drilling operation at the wellsite based on the well design.

2. The method of claim 1, wherein each of said plurality of ranked individual risks calculated along said depth of said wellbore and simultaneously displayed on said risk information display includes said risk severity and a color representing each said severity.

3. The method of claim 1, wherein each of said plurality of ranked individual risks calculated along said depth of said wellbore and simultaneously displayed on said risk information display includes said risk severity and a numerical value representing each said severity.

4. The method of claim 1, wherein said risk information displayed on said risk information display comprises one or more ranked subcategory risks.

5. The method of claim 4, wherein said risk information displayed on said risk information display includes said one or more ranked subcategory risks as a function of depth in said wellbore.

6. The method of claim 5, wherein each of said one or more ranked subcategory risks displayed on said risk information display as a function of depth in said wellbore includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, said severity being represented on said risk information display as a color.

7. The method of claim 5, wherein each of said one or more ranked subcategory risks displayed on said risk information display as a function of depth in said wellbore includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, said severity being represented on said risk information display as a numerical value.

8. The method of claim 5, wherein said subcategory risks is selected from a group consisting of:

gains risks, losses risks, stuck pipe risks, and mechanical risks.

9. The method of claim 1, wherein said risk information displayed on said risk information display comprises one or more risk categories.

10. The method of claim 9, wherein said one or more risk categories includes a total risk, said risk information display including said total risk displayed on said risk information display as a function of depth in said wellbore.

11. The method of claim 9, wherein said risk categories are selected from a group consisting of:

an average individual risk, a subcategory risk, an average subcategory risk, a total risk, an average total risk, a potential risk for each design task, and an actual risk for each design task.

12. The method of claim 11, wherein said risk information displayed on said risk information display includes said total risk as a function of depth in said wellbore.

13. The method of claim 12, wherein each said total risk displayed on said risk information display includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, each said severity being represented on said risk information display as a color.

14. The method of claim 12, wherein each said total risk displayed on said risk information display includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, each said severity being represented on said risk information display as a numerical value.

15. The method of claim 1, wherein said individual risk values are selected from a group consisting of:

H2S and CO2, Hydrates, Well water depth, Tortuosity, Dogleg severity, Directional Drilling Index, Inclination, Horizontal displacement, Casing Wear, High pore pressure, Low pore pressure, Hard rock, Soft Rock, High temperature, Water-depth to rig rating, Well depth to rig rating, mud weight to kick, mud weight to losses, mud weight to fracture, mud weight window, Wellbore stability window, wellbore stability, Hole section length, Casing design factor, Hole to casing clearance, casing to casing clearance, casing to bit clearance, casing linear weight, Casing maximum overpull, Low top of cement, Cement to kick, cement to losses, cement to fracture, Bit excess work, Bit work, Bit footage, bit hours, Bit revolutions, Bit Rate of Penetration, Drilistring maximum overputt, Bit compressive strength, Kick tolerance, Critical flow rate, Maximum flow rate, Small nozzle area, Standpipe pressure, ECD to fracture, ECD to losses, Gains, Gains Average, Losses, Losses average, Stuck, Stuck average, Mechanical, Mechanical average, Risk Average, Subsea BOP, Large Hole, Small Hole, Number of casing strings, Drillstring parting, and Cuttings.

16. The method of claim 1, further comprising the step of:

grouping said plurality of ranked individual risks to generate a plurality of design tasks, wherein said risk information display further includes a display of each of said plurality of design tasks.

17. The method of claim 16, wherein each of said plurality of design tasks include an actual risk and a potential risk, and wherein said display of each of said plurality of design tasks on said risk information display includes a display of said actual risk associated with each of said plurality of design tasks and a display of said potential risk associated with each of said plurality of design tasks.

18. The method of claim 17, wherein said display of each of said plurality of design tasks on said risk information display further includes a plot comprising said actual risk on one axis and said potential risk on another axis and a display of each said design task on said plot.

19. A method of determining and displaying a risk assessment, comprising the steps of:

receiving a plurality of input data calculation results associated with a wellbore;

comparing each calculation result of said plurality of input data calculation results with each logical expression of a plurality of logical expressions to rank each said calculation result; and

calculating a plurality of ranked individual risks extending along a length of said wellbore in response to the ranking step, each of said plurality of ranked individual risks representing an input data calculation result that has been ranked by said logical expression as having a risk severity selected from a group consisting of a high risk severity, a medium risk severity, and a low risk severity;

generating risk information in response to said plurality of ranked individual risks;

displaying said risk information, the displaying step including displaying a risk information display, said risk information display including a simultaneous display of said plurality of said ranked individual risks extending along said length of said wellbore;

modifying a well design for said wellbore using said plurality of ranked individual risks; and

performing a drilling operation at the wellsite based on the well design.

20. The method of claim 19, wherein said display of said plurality of ranked individual risks extending along said length of said wellbore includes a three-dimensional display of a corresponding plurality of cylinders extending along said length of said wellbore, each of said cylinders representing one of said plurality of ranked individual risks.

21. The method of claim 20, wherein each of said cylinders which represent one of said ranked individual risks has a color, said color representing a severity of said one of said ranked individual risks.

22. The method of claim 20, wherein each of said cylinders which represent one of said ranked individual risks has a size, said size representing a severity of said one of said ranked individual risks.

23. A program storage device readable by a machine tangibly embodying a program of instructions executable by the machine to perform method steps for determining and displaying a risk assessment, said method steps comprising:

receiving a plurality of input data calculation results associated with a wellbore;

comparing each calculation result of said plurality of input data calculation results with each logical expression of a plurality of logical expressions to rank said calculation result; and

calculating a plurality of ranked individual risks extending along a depth of said wellbore in response to the ranking step, each of said plurality of ranked individual risks representing an input data calculation result that has been ranked by said logical expression as having a risk severity selected from a group consisting of a high risk severity, a medium risk severity, and a low risk severity;

generating risk information in response to said plurality of ranked individual risks;

displaying said risk information, the displaying step including displaying said risk information on a risk information display, said risk information display including a simultaneous display of said plurality of ranked individual risks calculated along said depth of said wellbore.

24. The program storage device of claim 23, wherein each of said plurality of ranked individual risks calculated along said depth of said wellbore and simultaneously displayed on said risk information display includes said risk severity and a color representing each said severity.

25. The program storage device of claim 23, wherein each of said plurality of ranked individual risks calculated along said depth of said wellbore and simultaneously displayed on said risk information display includes said risk severity and a numerical value representing each said severity.

26. The program storage device of claim 23, wherein said risk information displayed on said risk information display comprises one or more ranked subcategory risks.

27. The program storage device of claim 26, wherein said risk information displayed on said risk information display includes said one or more ranked subcategory risks as a function of depth in said wellbore.

28. The program storage device of claim 27, wherein each of said one or more ranked subcategory risks displayed on said risk information display as a function of depth in said wellbore includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, said severity being represented on said risk information display as a color.

29. The program storage device of claim 27, wherein each of said one or more ranked subcategory risks displayed on said risk information display as a function of depth in said wellbore includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, said severity being represented on said risk information display as a numerical value.

30. The program storage device of claim 27, wherein said subcategory risks is selected from a group consisting of:

gains risks, losses risks, stuck pipe risks, and mechanical risks.

31. The program storage device of claim 23, wherein said risk information displayed on said risk information display comprises one or more risk categories.

32. The program storage device of claim 31, wherein said one or more risk categories includes a total risk, said risk information display including said total risk displayed on said risk information display as a function of depth in said wellbore.

33. The program storage device of claim 31, wherein said risk categories are selected from a group consisting of:

an average individual risk, a subcategory risk, an average subcategory risk, a total risk, an average total risk, a potential risk for each design task, and an actual risk for each design task.

34. The program storage device of claim 33, wherein said risk information displayed on said risk information display includes said total risk as a function of depth in said wellbore.

35. The program storage device of claim 34, wherein each said total risk displayed on said risk information display includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, each said severity being represented on said risk information display as a color.

36. The program storage device of claim 34, wherein each said total risk displayed on said risk information display includes a severity, said severity including said high risk severity or said medium risk severity or said low risk severity, each said severity being represented on said risk information display as a numerical value.

37. The program storage device of claim 23, wherein said individual risk values are selected from a group consisting of:

H2S and CO2, Hydrates, Well water depth, Tortuosity, Dogleg severity, Directional Drilling Index, Inclination, Horizontal displacement, Casing Wear, High pore pressure, Low pore pressure, Hard rock, Soft Rock, High temperature, Water-depth to rig rating, Well depth to rig rating, mud weight to kick, mud weight to losses, mud weight to fracture, mud weight window, Wellbore stability window, wellbore stability, Hole section length, Casing design factor, Hole to casing clearance, casing to casing clearance, casing to bit clearance, casing linear weight, Casing maximum overpull, Low top of cement, Cement to kick, cement to losses, cement to fracture, Bit excess work, Bit work, Bit footage, bit hours, Bit revolutions, Bit Rate of Penetration, Drillstring maximum overputt, Bit compressive strength, Kick tolerance, Critical flow rate, Maximum flow rate, Small nozzle area, Standpipe pressure, ECD to fracture, ECD to losses, Gains, Gains Average, Losses, Losses average, Stuck, Stuck average, Mechanical, Mechanical average, Risk Average, Subsea BOP, Large Hole, Small Hole, Number of casing strings, Drillstring parting, and Cuttings.

38. The program storage device of claim 23, said method steps further comprising:

grouping said plurality of ranked individual risks to generate a plurality of design tasks, wherein said risk information display further includes a display of each of said plurality of design tasks.

39. The program storage device of claim 38, wherein each of said plurality of design tasks include an actual risk and a potential risk, and wherein the display of each of said plurality of design tasks on said risk information display includes a display of said actual risk associated with each of said plurality of design tasks and a display of said potential risk associated with each of said plurality of design tasks.

40. The program storage device of claim 39 wherein said display of each of said plurality of design tasks on said risk information display further includes a plot comprising said actual risk on one axis and said potential risk on another axis and a display of each said design task on said plot.

41. A program storage device readable by a machine tangibly embodying a program of instructions executable by the machine to perform method steps for determining and displaying a risk assessment, said method steps comprising:

receiving a plurality of input data calculation results associated with a wellbore;

comparing each calculation result of said plurality of input data calculation results with each logical expression of a plurality of logical expressions to rank each said calculation result; and

calculating a plurality of ranked individual risks extending along a length of said wellbore in response to the ranking step, each of said plurality of ranked individual risks representing an input data calculation result that has been ranked by said logical expression as having a risk severity selected from a group consisting of a high risk severity, a medium risk severity, and a low risk severity;

generating risk information in response to said plurality of ranked individual risks;

displaying said risk information, the displaying step including displaying a risk information display, said risk information display including a simultaneous display of said plurality of said ranked individual risks extending along said length of said wellbore.

42. The program storage device of claim 41, wherein said display of said plurality of ranked individual risks extending along said length of said wellbore includes a three-dimensional display of a corresponding plurality of cylinders extending along said length of said wellbore, each of said cylinders representing one of said plurality of ranked individual risks.

43. The program storage device of claim 42, wherein each of said cylinders which represent one of said ranked individual risks has a color, said color representing a severity of said one of said ranked individual risks.

44. The program storage device of claim 42, wherein each of said cylinders which represent one of said ranked individual risks has a size, said size representing a severity of said one of said ranked individual risks.