Wired Pipe Telemetry Adapter for Wellbore Signal Reliability
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Solution Overview
Problem
Current telemetry systems in wellbore operations face challenges such as reliability issues, insufficient power, difficulty in extending communication links through downhole tools, and exposure to harsh environments, leading to increased failure rates and reduced efficiency in data transmission and control.
Innovation Solution
A hybrid telemetry system is introduced, featuring a drill string tool with annular external and internal upsets, axial grooves, and conical weld surfaces, which includes inductive couplers and armored cables for reliable power and data transmission, and a telemetry adapter with transceivers for communication with sensors and tools, enhancing signal strength and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional telemetry systems are used in harsh downhole environments, then data transmission is achieved, but reliability decreases due to exposure to extreme pressure and temperature
Solution Approach 1:
The drill string is divided into modular sections with telemetry adapters installed at specific intervals. Each adapter operates as an independent segment, allowing the system to function even if other segments fail. This segmentation isolates the impact of harsh environments to individual components rather than the entire telemetry system.
Solution Approach 2:
Telemetry adapters are pre-installed in the drill string before downhole operations begin. These adapters serve as protective intermediaries that shield the main telemetry system from extreme pressure and temperature conditions. The adapters are positioned upstream to cushion the impact of harsh environments before they reach sensitive electronic components.
2Power
If power is extended through the drill string to power downhole operations, then power capability increases, but signal attenuation increases
Solution Approach 1:
Telemetry adapters serve as intermediary components that facilitate both power and data transmission through the drill string. These adapters contain conductive elements that act as mediators, allowing electrical signals to pass through non-conductive drill pipe sections. The adapters are positioned at strategic intervals to maintain signal strength while extending power capability throughout the drill string.
Solution Approach 2:
The system transitions from relying solely on the drill string's inherent conductivity to using a multi-dimensional transmission approach. Telemetry adapters introduce additional transmission pathways through their conductive elements, creating a three-dimensional network of signal paths rather than depending on a single linear path through the drill string.
3Length of stationary object
If communication links are extended through downhole tools, then telemetry coverage increases, but difficulty in extending links increases due to tools like drilling jars
Solution Approach 1:
Telemetry adapters are pre-installed in the drill string during assembly before downhole operations begin. This preliminary action ensures that communication pathways are already established and do not need to be extended or modified when encountering downhole tools like drilling jars. The adapters are positioned upstream to maintain continuous communication links regardless of downstream tool configurations.
Solution Approach 2:
The telemetry adapters are designed with universal compatibility to work with various downhole tool configurations. Each adapter contains multiple conductive elements that can interface with different tool types, allowing the same adapter design to maintain communication links through diverse downhole tools including drilling jars, stabilizers, and measurement-while-drilling equipment.
4Reliability
If redundancy is added to the telemetry system, then reliability increases, but device complexity increases
Solution Approach 1:
The redundant telemetry system is segmented into modular adapter units distributed along the drill string. Each adapter contains complete transmission capabilities, allowing any single adapter to independently maintain communication if others fail. This segmentation creates redundancy without requiring a single complex centralized system, as each simple modular unit can operate autonomously.
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 system provides increased reliability, improved signal strength, reduced attenuation, and enhanced power capabilities, while simplifying manufacturing and operation, thereby improving data transmission and control in wellbore operations.
Implementation Method 1
inductive couplers and armored cables running the length of the individual drill string tools connecting the downhole tools with the surface electronics
Data Source
AI summary
A telemetry tool assembly for exploiting subsurface fluids and minerals through well construction and production. The assembly comprises a tube comprising a bore and a bore wall and first end and a second end. The respective ends each comprise internal and external upset portions welded to a pin end tool joint or box end tool joint, respectively. The upset portions comprise an internal and external conical transition section intermediate the respective tool joints and the tube. The external conical transition section comprises at least one socket comprising a removeable cover and side and bottom surfaces within the external conical transition section. The socket and cover comprise a seal between the cover and socket side walls. A telemetry adapter comprising electrical equipment is disposed within the one or more sockets and the assembly comprises a wired drill pipe (WDP). The socket surfaces comprise a hardness greater than the transition section.