Tong Cassette Positioning Device Sensor Alignment
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Solution Overview
Problem
In oil and gas rig environments, the manual alignment and connection of tong cassettes with positioning devices are time-consuming, risky for personnel, and prone to malfunctions, necessitating improved automated methods for safer and more efficient operations.
Innovation Solution
A sensor system is installed on the positioning device to detect the positional relationship between the device and the tong cassette, enabling automated alignment and connection through proximity sensors and optical imaging devices, which relay information for precise mechanical and operational coupling, reducing manual intervention and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual alignment and connection of tong cassette with positioning device is performed, then personnel can directly control the connection process, but the process is time-consuming and exposes personnel to safety risks
Solution Approach 1:
The system enables automated self-alignment and self-connection of the tong cassette to the positioning device through sensor systems and control mechanisms, eliminating the need for manual intervention in the connection process while maintaining operational control
Solution Approach 2:
Manual mechanical alignment operations are replaced with an automated sensor-based positioning system that uses optical or proximity sensors to detect and align the tong cassette with the positioning device, reducing both time and safety risks
2Adaptability or versatility
If multiple connections are made between tools on the rig, then the tool can receive power and utilities, but the probability of malfunction increases
Solution Approach 1:
Multiple utility connections (power, data, hydraulic, pneumatic) are integrated into a single unified coupling interface between the tong cassette and positioning device, reducing the number of separate connection points while maintaining full functionality
Solution Approach 2:
The coupling interface is designed as a universal multi-functional connector that simultaneously handles multiple utilities through a single standardized connection mechanism, improving reliability through consistency
3Ease of operation
If tong cassette is manually lifted and installed on positioning device, then the tong cassette can be positioned, but the process requires high level of attention and expertise
Solution Approach 1:
Manual lifting and positioning operations are replaced with an automated mechanical lifting system controlled by sensors and actuators that automatically position the tong cassette on the positioning device without requiring manual alignment skills
Solution Approach 2:
An automated control system acts as an intermediary between the operator and the physical connection process, managing the complex alignment and connection operations through a simplified user interface
Data Source
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AI summary
A method for connecting a tong cassette and a positioning device includes moving a positioning arm of the positioning device toward a predetermined position on the rig; identifying a position of the tong cassette relative to the positioning arm; and connecting the positioning arm to the tong cassette. A system includes a tong cassette; and a positioning device having a first sensor configured to measure a distance between the tong cassette and the positioning device; and a second sensor configured to measure a stick-up height of a tubular string.