System and method for defining a drilling path based on cost

Patent metadata

Field	Value
Publication number	US-9865022-B2
Application number	US-201615180661-A
Country	US
Kind code	B2
Filing date	Jun 13, 2016
Priority date	Jun 26, 2013
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

Provided is a method for selecting one of a plurality of convergence paths that may be drilled by a bottom hole assembly (BHA) comprising identifying, by a computer system, a plurality of geometric convergence paths, wherein each of the geometric convergence paths provides a convergence solution from a defined bottom hole assembly (BHA) location to a target drilling path of a well plan. An offset distance is calculated for drilling by the BHA each of the geometric convergence paths connecting the BHA location to the target drilling path. A drill path curvature associated with drilling each of the geometric convergence paths by the BHA is determined by the computer system. A time required for drilling each of the geometric convergence paths by the BHA is determined by the computer system. An optimal geometric convergence path of the plurality of geometric convergence paths is determined responsive to the offset distance for drilling each of the geometric convergence paths, the drill path curvature associated with each of the geometric convergence paths and the time required for drilling each of the geometric convergence paths. The determined optimal geometric convergence path is fed to a controller associated with a display of a drilling rig and used to control the display of the drilling rig to display the determined optimal geometric convergence path.

First claim

What is claimed is:

1. A method for drilling a well using one of a plurality of convergence paths that may be drilled by a bottom hole assembly (BHA) comprising:
identifying, by a computer system, a plurality of geometric convergence paths, wherein each of the geometric convergence paths provides a convergence solution from a defined bottom hole assembly (BHA) location to a target drilling path of a well plan;
calculating, by the computer system, an offset distance for drilling by the BHA each of the geometric convergence paths connecting the BHA location to the target drilling path;
determining, by the computer system, a drill path curvature associated with drilling each of the geometric convergence paths by the BHA;
determining, by the computer system, a time required for drilling each of the geometric convergence paths by the BHA;
determining, by the computer system, an optimal geometric convergence path of the plurality of geometric convergence paths responsive to the offset distance for drilling each of the geometric convergence paths, the drill path curvature associated with each of the geometric convergence paths and the time required for drilling each of the geometric convergence paths;
providing the determined optimal geometric convergence path to a controller device of a drilling rig;
automatically controlling, by the controller device, the drilling rig, to drill in accordance with the determined optimal geometric convergence path.

2. The method of claim 1 , wherein the step of identifying further comprises:
obtaining, by the computer system, drill plan information relating to a well plan; and
identifying, by the computer system, the plurality of geometric convergence paths responsive to the drill plane information.

3. The method of claim 2 , wherein the drill plan information comprises at least one of the well plan, seismic data, data defining the target path, BHA location, BHA trajectory, BHA ROP and drift information.

4. The method of claim 2 , wherein the step of identifying further comprises limiting the plurality of convergence paths to a predetermined number of convergence paths.

5. The method of claim 2 , wherein the step of identifying further comprises the steps of removing some of the plurality of convergence paths to remove illogical convergence paths.

6. The method of claim 2 , wherein the step of identifying further comprises comparing the plurality of convergence paths to a predetermined rule set to remove a portion of the plurality of convergence paths from further consideration for violating rules of the predetermined rule set.

7. The method of claim 1 , wherein the step of determining the optimal geometric convergence path is further responsive to geometric drift associated with the plurality of convergence paths.

8. The method of claim 1 , wherein the step of determining the optimal geometric convergence path further comprises normalizing each of the plurality of convergence paths against a longest convergence path.

9. The method of claim 1 , wherein the step of calculating the offset distance for each of the plurality of geometric convergence paths further comprises calculating the offset distance for a plurality of segments making up a geometric convergence path of the plurality of geometric convergence paths.

10. The method of claim 1 , wherein the step of determining a drill path curvature further comprises the step of determining, by the computer system a peak drill path curvature associate with drilling each of the plurality of geometric convergence paths.

11. The method of claim 1 , wherein the step of determining the time required for drilling each of the plurality of geometric convergence paths further comprise determining a time required to for drilling a plurality of segments making up a convergence path of the plurality of geometric convergence paths.

12. The method of claim 1 , wherein the step of determining the time required for drilling each of the plurality of geometric convergence paths is further responsive to a rate of penetration (ROP) for slide, a slide distance, an ROP for rotation, a rotation distance and a setup time for the slide.

13. A method for drilling a well using one of a plurality of convergence paths that may be drilled by a bottom hole assembly (BHA) comprising:
identifying, by a computer system, a plurality of geometric convergence paths, wherein each of the geometric convergence paths provides a convergence solution from a defined bottom hole assembly (BHA) location to a target drilling path of a well plan;
calculating, by the computer system, an offset distance for drilling by the BHA each of the geometric convergence paths connecting the BHA location to the target drilling path;
determining, by the computer system, a drill path curvature associated with drilling each of the geometric convergence paths by the BHA;
determining, by the computer system, a time required for drilling each of the geometric convergence paths by the BHA;
determining, by the computer system, an optimal geometric convergence path of the plurality of geometric convergence paths responsive to at least one of the offset distance for drilling each of the geometric convergence paths, the drill path curvature associated with each of the geometric convergence paths and the time required for drilling each of the geometric convergence paths;
providing the determined optimal geometric convergence path to a controller associated with a drilling rig;
providing a display of the determined optimal geometric convergence path on a display associated with the drilling rig; and
automatically controlling, by a controlling device, the drilling of a wellbore in accordance with the determined optimal geometric convergence path.

14. The method of claim 13 , wherein the step of identifying further comprises:
obtaining, by the computer system, drill plan information relating to a well plan; and
identifying, by the computer system, the plurality of geometric convergence paths responsive to the drill plane information.

15. The method of claim 14 , wherein the drill plan information comprises at least one of the well plan, seismic data, data defining the target path, BHA location, BHA trajectory, BHA ROP and drift information.

16. The method of claim 14 , wherein the step of identifying further comprises limiting the plurality of convergence paths to a predetermined number of convergence paths.

17. The method of claim 14 , wherein the step of identifying further comprises the steps of removing some of the plurality of convergence paths to remove illogical convergence paths.

18. The method of claim 14 , wherein the step of identifying further comprises comparing the plurality of convergence paths to a predetermined rule set to remove a portion of the plurality of convergence paths from further consideration for violating rules of the predetermined rule set.

19. The method of claim 13 , wherein the step of determining the optimal geometric convergence path is further responsive to geometric drift associated with the plurality of convergence paths.

20. The method of claim 13 , wherein the step of determining the optimal geometric convergence path further comprises normalizing each of the plurality of convergence paths against a longest convergence path.

21. The method of claim 13 , wherein the step of calculating the offset distance for each of the plurality of geometric convergence paths further comprises calculating the offset distance for a plurality of segments making u

Assignees

• Motive Drilling Tech Inc
• Motive Drilling Tech Inc

Inventors

• Benson Todd
• Burkhart John
• Chen Teddy

Classifications

• E21B41/00

  Equipment or details not covered by groups E21B15/00 - E21B40/00 · CPC title

• E21B7/04

  Directional drilling · CPC title

• G06Q10/063

  Operations research, analysis or management · CPC title

• G06Q10/06313

  Resource planning in a project environment · CPC title

• G06Q50/02 Primary

  Agriculture; Fishing; Forestry; Mining · CPC title