US 11,697,989 B2Granted

Micro invisible lost time in drilling operations

AssigneeLandmark Graphics Corporation

InventorsManish K. Mittal, Robello Samuel

Life of this patent

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Abstract

A system is described for calculating and outputting micro invisible lost time (MILT). The system may include a processor and a non-transitory computer-readable medium comprising instructions that are executable by the processor to cause the processor to perform various operations. Time-stamp data that includes values of drilling parameters may be received about a drilling operation, and the values of drilling parameters may be classified into a rig state that includes rig activities. For each rig activity, an actual completion time may be determined and compared to an expected completion time for determining a deviation. At least one deviated activity, in which the deviation is greater than a threshold, may be determined. Deviations may be combined into MILT that can be output for controlling the drilling operation.

Claims20

Dependent claims

A system comprising:

a processor;
and
a non-transitory computer-readable medium comprising instructions that are executable by the processor to cause the processor to perform operations comprising:
receiving time-stamp data about a drilling operation;
filtering the time-stamp data to remove outliers based on pre-set rules formed from historical data of existing wellbores, the filtering creating a cleaned time-stamp dataset, the cleaned time-stamp data including values for drilling parameters associated with different time frames corresponding to a recorded data rate;
classifying the values for the drilling parameters into a rig state that represents a status for the drilling operation, the rig state involving a plurality of rig activities;
for each respective rig activity of the plurality of rig activities:
determining an actual completion time;
comparing the actual completion time to an expected completion time associated with the respective rig activity to determine a deviation for the respective rig activity, the deviation being a difference between the actual completion time and the expected completion time associated with the respective rig activity;
and
identifying, as one or more deviated activities, one or more rig activities of the plurality of rig activities for which the deviation is greater than a pre-set threshold;
combining deviations for the respective rig activities into micro invisible lost time that represents invisible lost time in one or more time frames corresponding to the recorded data rate;
and
controlling a drilling operation using the micro invisible lost time.

11 more elements

A method comprising:

receiving time-stamp data about a drilling operation;
filtering the time-stamp data to remove outliers based on pre-set rules formed from historical data of existing wellbores, the filtering creating a cleaned time-stamp dataset, the cleaned time-stamp data including values for drilling parameters associated with different time frames corresponding to a recorded data rate;
classifying the values for the drilling parameters into a rig state that represents a status for the drilling operation, the rig state involving a plurality of rig activities;
for each respective rig activity of the plurality of rig activities:
determining an actual completion time;
comparing the actual completion time to an expected completion time associated with the respective rig activity to determine a deviation for the respective rig activity, the deviation being a difference between the actual completion time and the expected completion time associated with the respective rig activity;
and
identifying, as one or more deviated activities, one or more rig activities of the plurality of rig activities for which the deviation is greater than a pre-set threshold;
combining deviations for the respective rig activities into micro invisible lost time that represents invisible lost time in one or more time frames corresponding to the recorded data rate;
and
controlling a drilling operation using the micro invisible lost time.

8 more elements

A non-transitory computer-readable medium comprising instructions that are executable by a processing device for causing the processing device to perform operations comprising:

receiving time-stamp data about a drilling operation;
filtering the time-stamp data to remove outliers based on pre-set rules formed from historical data of existing wellbores, the filtering creating a cleaned time-stamp dataset, the cleaned time-stamp data including values for drilling parameters associated with different time frames corresponding to a recorded data rate;
classifying the values for the drilling parameters into a rig state that represents a status for the drilling operation, the rig state involving a plurality of rig activities;
for each respective rig activity of the plurality of rig activities:
determining an actual completion time;
comparing the actual completion time to an expected completion time associated with the respective rig activity to determine a deviation for the respective rig activity, the deviation being a difference between the actual completion time and the expected completion time associated with the respective rig activity;
and
identifying, as one or more deviated activities, one or more rig activities of the plurality of rig activities for which the deviation is greater than a pre-set threshold;
combining deviations for the respective rig activities into micro invisible lost time that represents invisible lost time in one or more time frames corresponding to the recorded data rate;
and
controlling a drilling operation using the micro invisible lost time.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/004,175Filed 27 Aug 2020
Published: US 2022/0065093 A13 Mar 2022
Granted: 11 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

E21B 44/08
Automatic control of the tool feed: in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
E21B 41/00
Equipment or details not covered by groups e21b15/00 - e21b40/00
E21B 44/00
Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which
E21B 45/00
Measuring the drilling time or rate of penetration