Well Communication Interface Using Phase-Change Surface Contact
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Solution Overview
Problem
Existing communication systems in wells face challenges in establishing a reliable connection between communication apparatus and the uneven or rough interior surfaces, particularly in open-hole sections, which affects the quality of data signal transmission.
Innovation Solution
A method involving a fluid portion that conforms to the interior surface profile to establish a good quality connection, which can change state to form a solid portion, providing electrical or acoustic connections, and includes materials like metal alloys or settable materials to facilitate data signal communication through subterranean regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a communication apparatus uses traditional connection methods in open-hole sections, then installation is simpler, but the surface contact area is insufficient leading to poor connection quality
Solution Approach 1:
The patent applies parameter changes by utilizing the phase transition of the sacrificial material from solid to liquid state. The material is deployed in solid form for easy handling and installation, then transitions to liquid form to conform to the wellbore interior surface and establish adequate surface contact area for reliable electromagnetic coupling. This parameter change resolves the contradiction by enabling good connection quality without requiring complex installation procedures.
Solution Approach 2:
The sacrificial material serves as an intermediary between the communication apparatus and the wellbore interior surface. It provides a medium that facilitates electromagnetic signal transmission by creating an adequate contact area, while being temporarily deployed and subsequently removed after serving its purpose. This intermediary approach enables reliable communication without permanent complex installation structures.
2Reliability
If the interior surface is uneven or rough, then the wellbore structure is simpler, but the surface contact area is reduced affecting signal transmission
Solution Approach 1:
The patent utilizes the liquid state parameter of the sacrificial material to adapt to uneven or rough interior surfaces. In liquid form, the material flows and conforms to the irregular surface geometry, maximizing surface contact area despite surface non-uniformity. This enables reliable electromagnetic signal transmission through open-hole sections with rough surfaces without requiring surface smoothing or additional infrastructure.
3Reliability
If additional infrastructure is added to improve connection, then signal quality improves, but device complexity and installation difficulty increase
Solution Approach 1:
The patent extracts and removes the sacrificial material after it has served its purpose of establishing adequate surface contact for electromagnetic coupling. The material is deployed temporarily to provide the necessary connection quality, then removed after communication is established, avoiding permanent complex infrastructure installation while achieving reliable signal transmission.
Solution Approach 2:
The sacrificial material functions as a temporary, disposable component that is deployed to provide adequate surface contact area for reliable communication, then removed after serving its purpose. This approach achieves good connection quality without requiring permanent, complex, or expensive infrastructure installations in the wellbore.
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
The solution ensures effective data signal transmission by ensuring a sufficient surface contact area and integrity, reducing the need for additional infrastructure and simplifying installation, while maintaining signal quality over significant distances.
Implementation Method 1
the portion may be selected to provide a sufficient surface contact area between the portion and the interior surface
Implementation Method 2
a good quality connection between the communication apparatus and the interior surface may be provided
Implementation Method 3
The solid portion may be a material with a melting temperature selected such that, when heated, the solid portion melts to form the fluid portion
Implementation Method 4
A communication apparatus for a well may be configured to use one or more types of signalling such as electromagnetic (EM) and/or acoustic signalling to provide data communication
Implementation Method 5
a good quality mechanical connection may facilitate acoustic signalling
Data Source
Figure 1a~1b
Figure 1c
Figure 2
AI summary
In described examples, there are methods and systems for communicating data signals in wells. The methods and systems may facilitate communication of data signals, for example, from an open-hole section of a well, or in a well having a discontinuous metallic well structure.