Remote Wellhead Integrity Testing via SCADA and Thermal Imaging
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Solution Overview
Problem
Manual testing of wellhead integrity and sub-surface safety valves in the oil and gas industry is labor-intensive, time-consuming, and poses operational risks, especially in harsh environments and offshore areas, where it is often difficult to conduct tests due to weather conditions or limited resources.
Innovation Solution
A system utilizing a SCADA system connected to pressure and temperature gauges and thermal infrared cameras to remotely test wellhead integrity, allowing for real-time data analysis and leak detection, eliminating the need for manual operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual testing by operator is used, then direct measurement of shut-in wellhead pressure is achieved, but labor intensity and time consumption increase significantly
Solution Approach 1:
The patent replaces manual mechanical testing procedures with an automated SCADA system that electronically controls valves and measures pressure. The system automatically opens and closes valves, records pressure readings, and analyzes integrity without requiring manual operator intervention, thereby reducing testing time while maintaining measurement accuracy.
Solution Approach 2:
The testing system performs self-service by automatically executing the complete testing sequence. The SCADA system autonomously controls valve operations, captures pressure data from gauges, and determines wellhead integrity without external manual intervention, transforming a labor-intensive process into an automated self-performing operation.
2Reliability
If manual testing procedures are implemented, then wellhead integrity can be assessed, but operational risks increase due to operator exposure to hazardous conditions
Solution Approach 1:
The SCADA system acts as an intermediary between the operator and the hazardous wellhead environment. Instead of operators directly exposing themselves to H2S and dangerous conditions to perform manual testing, the automated system remotely controls valve operations and monitors pressure from a safe distance, eliminating operator exposure while maintaining integrity assessment capability.
Solution Approach 2:
The patent substitutes manual mechanical operations with automated electronic control systems. The SCADA system electronically opens and closes valves, monitors pressure readings, and assesses wellhead integrity remotely, replacing the need for operators to physically presence at hazardous locations and eliminating exposure to harmful factors.
3Measurement precision
If manual testing is performed, then real-time pressure readings can be obtained, but the complexity and cost of bleeding equipment and safety procedures increase
Solution Approach 1:
The SCADA system performs self-service by automatically managing the complete testing sequence including valve control, pressure monitoring, and integrity determination. The system autonomously handles what would otherwise require complex manual bleeding procedures and safety protocols, simplifying the overall system complexity while maintaining real-time measurement capability.
Solution Approach 2:
The patent replaces complex mechanical bleeding equipment and manual safety procedures with an automated electronic control system. The SCADA system electronically controls valve operations and monitors pressure readings without requiring physical bleeding equipment or complex manual safety protocols, thereby reducing device complexity while obtaining real-time pressure data.
4Productivity
If automated SCADA system is implemented, then operational efficiency and safety are improved, but initial system complexity and installation requirements increase
Solution Approach 1:
The SCADA system provides multi-functionality by integrating valve control, pressure monitoring, temperature sensing, and integrity assessment into a single automated platform. This universal system performs multiple testing functions simultaneously, improving operational efficiency while the integrated nature reduces the need for separate complex equipment installations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances operational efficiency, reduces costs, and improves safety by enabling remote, automated testing of wellhead valves and sub-surface safety valves, reducing the need for on-site personnel and minimizing exposure to hazardous conditions.
Implementation Method 1
detecting, using a thermal infrared camera installed at a wellhead tree and flow lines of the well, potential oil/gas leak
Data Source
AI summary
A method for remotely testing wellhead integrity of a well is disclosed. The method includes connecting valves and associated gauges of the well remotely to a supervisory control and data acquisition (SCADA) system, obtaining real time pressure and temperature readings through the SCADA system, detecting, using a thermal infrared camera installed at a wellhead tree and flow lines of the well, potential oil/gas leak, and determining, by the SCADA system and based at least on the real time pressure and temperature readings and a detection result of the thermal infrared camera, integrity of the valves.