Saver Sub Integrating Antenna and Battery for Wired Drill Pipe Data Transmission
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Solution Overview
Problem
Existing drilling systems face limitations in real-time data transmission and power distribution due to low data rates in mud-pulse and electromagnetic telemetry systems, hindering the optimization of drilling operations.
Innovation Solution
A saver sub is introduced that connects the drill string to a top drive unit, featuring a mandrel with a radially recessed region housing electronics, a battery, and an antenna for wireless data communication, enabling efficient data transfer between the drill string and the surface computer, and allowing quick installation and removal of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wired drill pipe is used to provide communication and power distribution, then data transmission rate is improved, but device complexity increases
Solution Approach 1:
The saver sub integrates multiple functional components (electronic device, power source, antenna) into a nested configuration where the electronic device is housed within the saver sub body, the power source is positioned within the same structure, and the antenna is integrated into the assembly. This nesting approach enables wired drill pipe functionality for high-rate data transmission while containing the complexity within a compact, unified device that connects between the drill string and top drive unit
2Productivity
If electronics and power source are integrated into the saver sub, then real-time data processing is improved, but ease of manufacture worsens
Solution Approach 1:
The saver sub is designed as a segmented assembly where the electronic device, power source, and antenna are distinct components that can be manufactured separately and then integrated into the final assembly. This segmentation allows each component to be optimized and manufactured using appropriate processes, then assembled together to achieve real-time data processing capabilities without requiring the entire device to be manufactured as a single complex unit
3Productivity
If the saver sub connects drill string to top drive unit with integrated components, then drilling efficiency is improved, but installation complexity increases
Solution Approach 1:
The saver sub merges the electronic device, power source, and antenna into a single integrated assembly that functions as one unit connecting the drill string to the top drive unit. This consolidation enables improved drilling efficiency through real-time data transmission and processing while simplifying installation, as the entire functional assembly can be installed as a single component rather than requiring separate installation of multiple discrete elements
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 saver sub facilitates high-rate data transmission and power distribution along the drill string, enhancing real-time data processing and optimizing drilling operations without the need for modifying the top drive system or adding special subs, thus improving drilling efficiency.
Implementation Method 1
an antenna to relay and receive data
Implementation Method 2
a battery to power the electronics
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A technique facilitates the drilling of a wellbore by enhancing the ability to relay data. The system comprises a saver sub designed to connect a top drive unit with a wired drill pipe without requiring modification of the top drive unit. The saver sub comprises an electronics package, a battery, and an antenna coupled to a saver sub mandrel.