IP Library › Granted Patent US 8,073,664
Granted Patent B2
US 8,073,664 · App. 12/369,606 · Granted Dec 6, 2011

Systems and methods for improved positioning of pads

Assignee: Landmark Graphics Corporation
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Quick Facts
Patent No.
US 8,073,664
App. No.
12/369,606
Granted
Dec 6, 2011
Kind
B2
Abstract

Systems and methods for the automated positioning of pads and orienting of slot templates for the pads. The systems and methods also include automated adjustment of well path plans from a pad to selected well targets.

Claims (32)

1. A computer implemented method for positioning a pad, comprising:

computing a slot template geometry for the pad based on a predetermined number and position of slots on the pad using a computer processor;

computing nudge parameters for each plan assigned to a respective slot based on the slot template geometry using the computer processor;

adjusting a nudge for each plan based on the nudge parameters for each respective plan;

moving each nudge by a predetermined angle toward a target azimuth if a difference between an azimuth from each nudge to a respective slot and another azimuth from each nudge to a respective target does not meet a predetermined allowable value;

repeating the steps of adjusting a nudge for each plan and moving each nudge until each plan is in a position that meets a minimum separation distance at a final kick-off depth and the difference between the azimuth and the another azimuth for each respective nudge meets the predetermined allowable value; and

applying the nudge for each respective plan.

2. The method of claim 1 , wherein the nudge parameters are computed using a single line algorithm.

3. The method of claim 1 , wherein the nudge parameters are computed using a double line and a circular algorithm.

4. The method of claim 1 , wherein the nudge parameters are computed using a rectangular algorithm.

5. The method of claim 1 , wherein the nudge for each plan is adjusted by at least one of increasing and decreasing at least one of an inclination and an azimuth for each plan that does not meet the minimum separation distance.

6. The method of claim 1 , wherein the predetermined angle is about 1 degree.

7. The method of claim 1 , wherein the separation distance is based on a separation factor and a drilling increment.

8. The method of claim 7 , wherein the separation factor represents a required separation distance between each plan for each drilling increment.

9. The method of claim 1 , further comprising optimizing each nudge by evaluating multiple separation issues at different times.

10. The method of claim 9 , wherein the multiple separation issues are based on the minimum separation distance.

11. A non-transitory program carrier device tangibly carrying computer executable instructions for positioning a pad, the instructions being executable to implement:

computing a slot template geometry for the pad based on a predetermined number and position of slots on the pad;

computing nudge parameters for each plan assigned to a respective slot based on the slot template geometry;

adjusting a nudge for each plan based on the nudge parameters for each respective plan;

moving each nudge by a predetermined angle toward a target azimuth if a difference between an azimuth from each nudge to a respective slot and another azimuth from each nudge to a respective target does not meet a predetermined allowable value;

repeating the steps of adjusting a nudge for each plan and moving each nudge until each plan is in a position that meets a minimum separation distance at a final kick-off depth and the difference between the azimuth and the another azimuth for each respective nudge meets the predetermined allowable value; and

applying the nudge for each respective plan.

12. The program carrier device of claim 11 , wherein the nudge parameters are computed using a single line algorithm.

13. The program carrier device of claim 11 , wherein the nudge parameters are computed using a double line and a circular algorithm.

14. The program carrier device of claim 11 , wherein the nudge parameters are computed using a rectangular algorithm.

15. The program carrier device of claim 11 , wherein the nudge for each plan is adjusted by at least one of increasing and decreasing at least one of an inclination and an azimuth for each plan that does not meet the minimum separation distance.

16. The program carrier device of claim 11 , wherein the predetermined angle is about 1 degree.

17. The program carrier device of claim 11 , wherein the separation distance is based on a separation factor and a drilling increment.

18. The program carrier device of claim 17 , wherein the separation factor represents a required separation distance between each plan for each drilling increment.

19. The program carrier device of claim 11 , further comprising optimizing each nudge by evaluating multiple separation issues at different times.

20. The program carrier device of claim 19 , wherein the multiple separation issues are based on the minimum separation distance.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 022550 FRAME 0471. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 6, 2011
From: SCHOTTLE, GARY; COLVIN, DAN
To: LANDMARK GRAPHICS CORPORATION
Reel/Frame 027181/0725 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2009
From: SCHOTTLE, GARY; COLVIN, DAN
To: LANDMARK GRAPHICS CORPORATION, A HALLIBURTON COMPANY
Reel/Frame 022550/0471 →
Continuity (2)
Provisional Application 61027694 · Feb 11, 2008
Related Publication 20090200014A1 · Aug 13, 2009