Granted Patent B2

US 12,735,974 · App. 19/291,942 · Granted Sep 15, 2026

Inventors: Tianxiang Su (Arlington, MA); Muhannad Abuhaikal (Cambridge, MA)

Assignee: Schlumberger Technology Corporation

E21B44/02E21B44/00E21B47/007E21B47/013E21B47/138

Abstract

Claims (78)

1 . A system for use at an oilfield, the system comprising:

a conveyance;

a drilling device coupled to the conveyance, wherein the drilling device is configured to propagate a dynamic load during drilling of a wellbore at the oilfield;

an electronics package assembly coupled to the conveyance and the drilling device; and

a controller communicatively coupled to the electronics package assembly, wherein the control unit controller is configured to:

acquire dynamic load information from one of the electronics package assembly and surface equipment directing the drilling of the wellbore from a surface of the oilfield;

compare the acquired dynamic load information to a threshold dynamic zone bounded by a plurality of boundaries to obtain a comparison, wherein at least one boundary of the plurality of boundaries varies over time during the drilling of the wellbore;

adjust, while operating the controller in a first control mode, a load on the conveyance, a rotational speed of the drilling device, or both in real-time based on the comparison; and

in response to the acquired dynamic load information falling outside the threshold dynamic zone for a threshold period of time:

cease operating the controller in the first control mode; and

regulate, while operating the controller in a second control mode, the load on the conveyance, the rotational speed of the drilling device, or both to be within one or more predetermined threshold ranges.

2 . The system of claim 1 , wherein the conveyance comprises:

a coiled tubing; and

a drill pipe.

3 . The system of claim 1 , wherein the electronics package assembly is disposed in a bottom hole assembly coupled to the drilling device.

4 . The system of claim 1 , wherein the controller comprises a processor configured to determine a planning score based on one or more dynamic load input parameters corresponding to the load on the conveyance, the rotational speed of the drilling device, or both.

5 . The system of claim 4 , wherein the processor receives the one or more dynamic load input parameters from a historical log of one or more prior drilling operations.

6 . The system of claim 4 , wherein the processor is configured to determine the planning score based on running a simulator in a form of having a mechanical model to simulate a plurality of combinations of controllable variables.

7 . The system of claim 1 , wherein the conveyance comprises a tubular conveyance.

8 . The system of claim 1 , wherein the controller is configured to maintain the load on the conveyance and the rotational speed of the drilling device within the threshold dynamic zone in response to the at least one boundary varying over time.

9 . The system of claim 1 , wherein the threshold dynamic zone is a two-dimensional zone, and the threshold dynamic zone is a contiguous zone.

10 . The system of claim 1 , wherein each boundary of the plurality of boundaries is a function of the load on the conveyance, the rotational speed of the drilling device, or both.

11 . The system of claim 1 , wherein the plurality of boundaries comprises:

a resonance threshold;

a bit stick-slip threshold; and

a coiled tubing buckling threshold.

12 . The system of claim 1 , wherein:

the controller comprises a processor configured to determine a planning score based on one or more dynamic load input parameters corresponding to the load on the conveyance, the rotational speed of the drilling device, or both;

the processor receives the one or more dynamic load input parameters from a historical log of one or more prior drilling operations;

the processor is configured to determine the planning score based on running a simulator having a mechanical model to simulate a plurality of combinations of controllable variables;

the conveyance comprises a tubular conveyance;

the controller is configured to maintain the load on the conveyance and the rotational speed of the drilling device within the threshold dynamic zone in response to the at least one boundary varying over time; and

the threshold dynamic zone is a two-dimensional zone, and the threshold dynamic zone is a contiguous zone.

13 . A method of drilling a wellbore at an oilfield, the method comprising:

determining a set of dynamic load input parameters for a drilling operation;

determining a planning score corresponding to the set of dynamic load input parameters;

commencing the drilling operation with the set of dynamic load input parameters based on the planning score;

monitoring dynamic load information from drilling equipment during the drilling operation;

comparing the dynamic load information to a threshold dynamic zone bounded by a plurality of boundaries to obtain a comparison, wherein at least one boundary of the plurality of boundaries varies over time during the drilling operation;

adjusting, via a controller operating in a first control mode, one or more dynamic load parameters corresponding to the drilling operation in real-time based on the comparison; and

in response to the dynamic load information falling outside the threshold dynamic zone for a threshold period of time:

cease operating the controller in the first control mode; and

regulating, via the controller operating in a second control mode, the one or more dynamic load parameters to be within one or more predetermined threshold ranges.

14 . The method of claim 13 , wherein the adjusting of the one or more dynamic load parameters comprises:

adjusting a weight on bit value corresponding to a drilling device;

adjusting a rotational speed of the drilling device; or

any combination thereof.

15 . The method of claim 13 , wherein the one or more predetermined threshold ranges comprise:

a resonance threshold;

a bit stick-slip threshold;

a coiled tubing buckling threshold; or

any combination thereof.

16 . The method of claim 13 , wherein the threshold dynamic zone is partially based on a lower limit for a rate of penetration of the drilling operation.

17 . The method of claim 13 , wherein the adjusting of the one or more dynamic load parameters comprises:

applying a predetermined workflow to an additional drilling operation, wherein the predetermined workflow comprises varying a weight on bit value of a drilling device, a rotational speed of the drilling device, or both;

monitoring a dynamic load during the additional drilling operation; and

developing a historical log of drilling input parameters used in the additional drilling operation.

18 . A method, comprising:

determining a weight on bit value and a rotational velocity for a drilling device employed in drilling a wellbore at an oilfield;

drilling the wellbore based on the weight on bit value and the rotational velocity;

monitoring a dynamic load during the drilling of the wellbore;

comparing the dynamic load to a threshold dynamic zone bounded by a plurality of boundaries to obtain a comparison, wherein at least one boundary of the plurality of boundaries varies over time during the drilling;

adjusting, via a controller operating in a first control mode, the weight on bit value, the rotational velocity, or both based on the comparison; and

in response to the dynamic load falling outside the threshold dynamic zone for a threshold period of time:

cease operating the controller in the first control mode; and

regulating, while operating the controller in a second control mode, the weight on bit value, the rotational velocity, or both to be within one or more predetermined threshold ranges.

19 . The method of claim 18 , wherein the monitoring of the dynamic load comprises:

measuring axial load;

measuring lateral load;

measuring torsional vibration; or

any combination thereof.

20 . The method of claim 18 , wherein the adjusting is responsive to;

a fluctuation in the weight on bit value;

topdrive shaking;

an increase in mean surface torque;

topdrive stalling;

an increase in one or more surface torque variations; or

any combination thereof.

Assignments (1)

Continuity (2)

References Cited (12)