Downhole Flat Pack Spacer Layout for Consistent Tube Spacing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flat packs used in downhole applications face challenges in maintaining consistent spacing between tubes, which is crucial for safe operation, especially when the jacket extends between members, making it difficult to ensure a minimum spacing throughout the entire length.
Innovation Solution
Incorporating a prefabricated spacer between tubes that is encapsulated in a jacket, ensuring the tubes and spacer remain straight and unwound, with optional tear cords for easy jacket removal, guarantees consistent spacing and facilitates safe installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a jacket extends between tubes in existing flat packs, then the tubes can be bundled together, but it becomes difficult to ensure consistent minimum spacing throughout the entire length of the flat pack
Solution Approach 1:
A spacer is introduced as an intermediary component between adjacent tubes. The spacer maintains a predetermined distance between tube outer surfaces, ensuring consistent spacing throughout the entire length of the flat pack. The spacer is positioned within the jacket and works as a mediator to prevent tube contact while maintaining bundle integrity.
Solution Approach 2:
The spacer is prefabricated with specific dimensional characteristics before assembly. The predetermined distance between spacer surfaces is established during manufacturing, allowing spacing to be pre-determined and maintained without requiring complex control mechanisms during operation or installation.
2Ease of operation
If tear cords are installed between tubes and jacket, then the jacket can be easily removed without damaging tubes, but the presence of multiple cords and removal procedures increases installation complexity
Solution Approach 1:
The jacket is designed as a removable component that can be separated from the tube assembly. Tear cords are positioned between the jacket and tubes to facilitate this separation. By extracting the jacket as a distinct removable element, the system allows for easy removal without requiring damage to the tubes or complex disassembly procedures.
Solution Approach 2:
The tear cords are simple, consumable elements designed for single-use during the jacket removal process. These inexpensive components enable easy separation of the jacket from the tubes, after which the cords serve their purpose and can be discarded, simplifying the overall removal procedure.
Data Source
AI summary
A flat pack (1) for operating a downhole tool or sensor includes a plurality of tubes (3a, 3b); a spacer (2) disposed between the tubes (3a, 3b); and a jacket (4) encapsulating the tubes (3a, 3b) and the spacer (2). The tubes (3a, 3b) and the spacer (2) are positioned in the jacket (4) in a side-by-side arrangement. The tubes (3a, 3b) and the spacer (2) are not twisted along the flat pack (1).