Methods and systems for drilling
AssigneeHelmerich & Payne Technologies, LLC
InventorAngus Lamberton JAMIESON
Life of this patent
Estimating the term…
Abstract
Systems and methods of controlling drilling operations including Sliding With Indexing For Toolface (SWIFT) and Variable Weight Drilling (VWD) techniques. The methods and systems may include systems and devices for controlling the drilling operations, including systems and devices capable of automatically determining drilling parameters and setting operating parameters for drilling in a wellbore. The systems and methods may also determine a change in weight on bit and/or toolface, determine a timeframe for a weight on bit to be delivered to the bit, and/or determine a spindle change to modify the toolface. The systems and methods may also send control signals to apply the spindle change and/or block velocity change to correct any detected or anticipated toolface error.
Claims20
A computer system for controlling drilling of a wellbore, the computer system comprising:
- a processor;
- a memory coupled to the processor, wherein the memory comprises instructions executable by the processor, the instructions comprising instructions for:
- (a) determining a target toolface;
- (b) determining a target dogleg severity for a portion of a wellbore being drilled;
- (c) determining a motor yield for a bottom hole assembly (BHA) for drilling the wellbore;
- (d) responsive to the target dogleg severity and the motor yield, determining a slide ratio;
- (e) responsive to the slide ratio, determining revolutions per minute for a drillstring;
- (f) determining a time for a weight on bit (WOB) change to reach a drill bit attached to the BHA;
- (g) determining the time for a spindle change to reach the drill bit;
- (h) receiving toolface information while drilling;
- (i) determining an expected yield from a plurality of potential WOB amplitudes and phases;
- and
- (j) applying a first WOB amplitude and first WOB phase associated with a highest expected yield.
A non-transitory, computer-readable medium storing a plurality of instructions that, when executed by one or more processors of a computing device, cause the one or more processors to perform operations for controlling drilling operations comprising:
- (a) determining a target toolface;
- (b) determining a target dogleg severity for a portion of a wellbore being drilled;
- (c) determining a motor yield for a bottom hole assembly (BHA) for drilling the wellbore;
- (d) responsive to the target dogleg severity and the motor yield, determining a slide ratio;
- (e) responsive to the slide ratio, determining revolutions per minute for a drillstring;
- (f) determining a time for a weight on bit (WOB) change to reach a drill bit attached to the BHA;
- (g) determining the time for a spindle change to reach the drill bit;
- (h) receiving toolface information while drilling;
- (i) determining an expected yield from a plurality of potential WOB amplitudes and phases;
- and
- (j) applying a first WOB amplitude and first WOB phase associated with a highest expected yield.
A computer executable method for controlling drilling of a wellbore, the method comprising:
- (a) determining a target toolface;
- (b) determining a target dogleg severity for a portion of a wellbore being drilled;
- (c) determining a motor yield for a bottom hole assembly (BHA) for drilling the wellbore;
- (d) responsive to the target dogleg severity and the motor yield, determining a slide ratio;
- (e) responsive to the slide ratio, determining revolutions per minute for a drillstring;
- (f) determining a time for a weight on bit (WOB) change to reach a drill bit attached to the BHA;
- (g) determining the time for a spindle change to reach the drill bit;
- (h) receiving toolface information while drilling;
- (i) determining an expected yield from a plurality of potential WOB amplitudes and phases;
- and
- (j) applying a first WOB amplitude and first WOB phase associated with a highest expected yield.
Dependencies are inferred from the claim text.