Coiled tubing drilling advisor
AssigneeSchlumberger Technology Corporation
InventorShunfeng Zheng
Life of this patent
Estimating the term…
Abstract
A coiled tubing drilling advisor is configured to generate coiled tubing drilling advisories that include supervisory instructions to rig personnel that provide supervisory oversight of a coiled tubing wellbore operation. The advisories include at least one of instructions to meet operational targets, instructions to maintain the coiled tubing wellbore operation within standard operating procedures, and instructions to address operational anomalies. The advisories are generated based on an input coiled tubing drilling configuration, input coiled tubing drilling operational parameters, and received downhole and surface sensor measurements made during a coiled tubing wellbore operation.
Claims20
A method for advising a coiled tubing wellbore operation, the method comprising:
- inputting a coiled tubing drilling configuration into a supervisory control system;
- inputting coiled tubing drilling operational parameters into the supervisory control system;
- receiving downhole and surface sensor measurements in the supervisory control system, the sensor measurements made during the coiled tubing wellbore operation;
- and
- evaluating the sensor measurements with the supervisory control system to generate coiled tubing drilling advisories, the generated coiled tubing drilling advisories including supervisory instructions to rig personnel that provide supervisory oversight of the coiled tubing wellbore operation, the coiled tubing drilling advisories including at least one of instructions to meet operational targets, instructions to maintain the coiled tubing wellbore operation within standard operating procedures, and instructions to address operational anomalies.
A coiled tubing drilling supervisory control system comprising:
- a processor in electronic communication with downhole sensors and surface sensors;
- the processor configured to:
- receive an input coiled tubing drilling configuration;
- receive input coiled tubing drilling operational parameters;
- receive sensor measurements from the downhole sensors and the surface sensors during a coiled tubing wellbore operation;
- and
- evaluate the sensor measurements to generate a coiled tubing drilling advisory, the generated coiled tubing drilling advisories including supervisory instructions to rig personnel that provide supervisory oversight of the coiled tubing wellbore operation, the coiled tubing drilling advisories including at least one of instructions to meet operational targets, instructions to maintain the coiled tubing wellbore operation within standard operating procedures, and instructions to address operational anomalies.
A method for advising a coiled tubing wellbore operation, the method comprising:
- inputting a coiled tubing drilling configuration into a supervisory control system;
- inputting coiled tubing drilling operational parameters into the supervisory control system;
- receiving downhole and surface sensor measurements in the supervisory control system, the downhole and surface sensor measurements received from sensors deployed in a coiled tubing subsystem, a bottom hole assembly subsystem, and an underbalanced or managed pressure subsystem;
- estimating an underbalanced or managed pressure drilling indicator, a hole cleaning indicator, and a motor performance indicator based on the received downhole and surface sensor measurements;
- and
- evaluating the estimated underbalanced or managed pressure drilling indicator, the estimated hole cleaning indicator, and the estimated motor performance indicator to generate coiled tubing drilling advisories, the generated coiled tubing drilling advisories including supervisory instructions to rig personnel to change at least one of the coiled tubing drilling operational parameters in the coiled tubing subsystem, the bottom hole assembly subsystem, and the underbalanced or managed pressure subsystem to maintain the under balance drilling indicator, the hole cleaning indicator, and the motor performance indicator within corresponding predetermined operating windows.
Dependencies are inferred from the claim text.