Drilling Control Using Block Position and Slips Status
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Solution Overview
Problem
Current drilling operations face challenges in accurately determining the length of pipe added to a drillstring and controlling drilling operations efficiently, particularly in transitioning between in-slips and out-of-slips states.
Innovation Solution
A method and system that utilize initial on-bottom signals, block position data for in-slips and out-of-slips states, and slips status to determine the length of pipe added to the drillstring, thereby controlling drilling operations effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional manual methods are used to determine pipe length and control drilling operations, then operational flexibility is maintained, but measurement precision and control accuracy deteriorate
Solution Approach 1:
The patent replaces manual mechanical measurement methods with an automated electronic control system that uses sensors, processors, and communication networks to detect block position, determine slips status, and calculate pipe length added to the drillstring, thereby improving measurement precision while managing system complexity through integrated automation
Solution Approach 2:
The control system automatically determines pipe length and controls drilling operations without requiring manual intervention for measurements and calculations, enabling the system to self-monitor and self-adjust based on detected block position changes and slips status transitions
2Productivity
If automated control systems are implemented to improve drilling operation control, then productivity increases, but device complexity increases
Solution Approach 1:
The control system is designed to perform multiple functions including detecting block position, determining slips status, calculating pipe length, and controlling drilling operations through a single integrated automated system, thereby increasing productivity while consolidating rather than multiplying system components
Solution Approach 2:
The system continuously monitors block position and slips status, uses this feedback to automatically determine when pipe has been added to the drillstring, and adjusts drilling operations accordingly, creating a closed-loop control system that improves productivity through real-time automated decision-making
3Measurement precision
If multiple data parameters are monitored to improve control accuracy, then measurement precision improves, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent combines multiple detection functions into a single integrated control system that simultaneously monitors block position, slips status, and pipe length using coordinated sensors and processors, thereby improving control accuracy through multi-parameter monitoring while reducing the practical difficulty of data collection through system integration
Data Source
AI summary
A system and method that include receiving an initial on-bottom signal that is indicative of an on-bottom state. The system and method also include receiving data indicative of a block position of the block for an in-slips state and a block position for going to an out-of-slips state of a rig. The system and method additionally include receiving data indicative of slips status of slips of the rig that is indicative of in-slips or out-of-slips. The system and method further include utilizing the data indicative of the slips status and the data indicative of the block position to control a drilling operation.