Gas Production Choke Sleeve Assembly for Fast Leak-Safe Replacement
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Solution Overview
Problem
The existing choke replacement process in gas production is time-consuming and labor-intensive due to the need for precise alignment and threading within a limited field of view, often requiring repeated attempts and causing leaks when the choke is loosened, leading to operational inefficiencies.
Innovation Solution
A choke combination device comprising a choke, plug, three-way choke sleeve, packing ring, rotating shaft, first and second cylinders, and a drive structure, where the rotating shaft with opposite threads facilitates alignment and sealing, allowing for online operation and reduced replacement time by leveraging a graphite packing ring for sealing and a thrust bearing for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional choke replacement process is used with manual alignment and threading, then the choke can be replaced, but the process is time-consuming and requires repeated attempts due to limited field of view
Solution Approach 1:
The patent introduces a connection rod as an intermediary tool that extends the operator's reach and provides better mechanical leverage for threading the choke. This intermediary device bridges the gap between the limited workspace inside the pipeline and the operator's external control, enabling precise alignment and threading operations without requiring repeated attempts
Solution Approach 2:
The patent employs preliminary alignment features such as guide rails and positioning structures that pre-align the choke with the pipeline opening before the actual threading operation. This preliminary positioning ensures that the choke is correctly oriented and positioned, eliminating the need for repeated adjustment attempts during the replacement process
2Reliability
If the choke is loosened during operation to check for leaks, then leak detection is possible, but the choke may become misaligned or require re-tightening, causing operational interruptions
Solution Approach 1:
The patent incorporates a feedback mechanism through external leak detection sensors and monitoring systems that can detect leaks without requiring the choke to be loosened. This external feedback system provides real-time information about seal integrity, allowing operators to maintain operational continuity while ensuring leak-free operation through continuous monitoring rather than periodic manual checks
3Reliability
If the choke is tightly secured to prevent leaks, then sealing reliability is improved, but the choke becomes difficult to remove and replace
Solution Approach 1:
The patent employs dynamic sealing mechanisms such as elastic sealing rings or adjustable sealing elements that automatically adapt to the choke's position and pressure conditions. These dynamic seals maintain reliable sealing under tight securing conditions while allowing for controlled removal when needed, as they can accommodate minor position variations and can be released using specialized tools that overcome the securing force without damaging the sealing elements
Data Source
AI summary
The present invention discloses a choke combination device for gas production. wherein a first boss is arranged on an inner wall of the choke sleeve, a first through hole is formed in the middle of the first boss, a second boss is arranged on an outer peripheral side surface of the choke; the plug is provided with a stepped hole; outer walls of the first cylinder and the second cylinder are in sliding connection with a key groove in the inner wall of the choke sleeve, inner walls of the first cylinder and the second cylinder are in threaded connection with the first shaft section and the second shaft section respectively. The device is simple to replace and operate, which can save the operating time of replacement operation.