Modular Weight Module for Wellbore Tool String Signal Transmission
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Solution Overview
Problem
Conventional weight bars in hydrocarbon extraction are limited to being mounted at the top of the tool string and lack the ability to be positioned anywhere along the string, and they do not allow for electrical signal transmission without external wiring.
Innovation Solution
A weight module with a conductive body and insulating cover that can be placed anywhere along the tool string, providing electrical communication through wireless contact points, allowing for both weight distribution and signal transmission without the need for external wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional weight bars are mounted at the top of the tool string, then weight is added to facilitate insertion against wellbore head pressure, but the weight module cannot be positioned at any location along the tool string
Solution Approach 1:
The weight module is designed as a segmented, modular component that can be independently positioned at various locations along the tool string. The housing contains internal structures that allow the weight module to be mounted at different positions, enabling flexible weight distribution throughout the tool string rather than being fixed only at the top position.
2Ease of operation
If conventional weight bars are used, then weight is provided for insertion, but electrical signal transmission requires external wired connections
Solution Approach 1:
The weight module combines multiple functions into a single integrated component: it provides weight for insertion while simultaneously serving as an electrical conduit. The conductive housing and internal contact portions allow electrical signals to pass through the weight module itself, eliminating the need for separate external wiring connections and simplifying the overall system.
3Strength
If weight module housing is used to contain the conductive body, then structural support is provided, but electrical isolation between conductive body and housing is required
Solution Approach 1:
An insulating cover is introduced as an intermediary element between the conductive body and the weight module housing. This insulating cover electrically isolates the conductive body from the housing while allowing both components to maintain their structural integrity and functional roles. The insulating cover acts as a mediator that enables both electrical isolation and structural support without requiring complex integrated designs.
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
Enables flexible placement of the weight module along the tool string, enhances signal transmission, and simplifies the attachment process by allowing wireless electrical connections, improving the operational efficiency and modularity of the tool string.
Implementation Method 1
the conductive body may have a first contact portion provided at a first end of the conductive body and a second contact portion provided at a second end of the conductive body, opposite the first end in the axial direction. In some embodiments, the first contact portion may be in electrical communication with the second contact portion through the conductive body.
Implementation Method 2
the insulating cover may be configured to electrically isolate the conductive body from the weight module housing
Implementation Method 3
Weight bars or sinker bars may be used to add additional weight to the tool string to facilitate insertion against the wellbore head pressure. Increasing weight of the tool string may allow gravitational forces to balance or overcome the wellbore head pressure.
Data Source
AI summary
Disclosed embodiments relate to weight modules for use in a wellbore tool string. In some embodiments, the weight module may comprise a conductive body, extending in an axial direction, and an insulating cover. The conductive body may be configured to fit within a hollow interior of a weight module housing, and the insulating cover may be configured to electrically isolate the conductive body from the weight module housing. In some embodiments, the conductive body may have a first contact portion, provided at a first end of the conductive body, and a second contact portion, provided at a second end of the conductive body, with the first contact portion in electrical communication with the second contact portion through the conductive body.