Dual Telemetry Coordination for Wellbore Interference
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Solution Overview
Problem
Existing wellbore telemetry systems face interference issues when both mud pulse telemetry and wired drill pipe telemetry attempt to communicate with drilling tools simultaneously, leading to disrupted data transmission and control of drilling operations.
Innovation Solution
Implementing a dual telemetry system where one telemetry system acts as the 'master' and the other as the 'slave', allowing them to coordinate communication and avoid interference, with the ability to switch roles if one system becomes unavailable, ensuring continuous data transmission and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both mud pulse telemetry and wired drill pipe telemetry systems operate simultaneously to provide redundant communication and high-speed data transmission, then the reliability and productivity of drilling operations are improved, but interference between the two telemetry systems occurs causing disrupted data transmission
Solution Approach 1:
The patent segments the communication timeline into distinct time slots where each telemetry system operates independently. The mud pulse telemetry system transmits during one time slot while the wired drill pipe telemetry system transmits during another time slot, preventing interference between the two systems while maintaining both communication paths for reliability.
Solution Approach 2:
The patent implements periodic action by alternating between mud pulse telemetry communication and wired drill pipe telemetry communication in a cyclic manner. This periodic switching allows both systems to function without simultaneous interference, with each system getting periodic opportunities to transmit data while the other remains inactive.
2Productivity
If wired drill pipe telemetry is used to achieve high-speed data transmission and long-distance communication, then productivity and data transmission rate are improved, but the communication channel may be interrupted when adjacent drill pipe joints are separated
Solution Approach 1:
The patent applies beforehand cushioning by having the mud pulse telemetry system serve as a backup communication path that is activated when the wired drill pipe telemetry channel is interrupted. This pre-prepared alternative communication method ensures continuous data transmission capability even when the primary high-speed wired system fails due to separated drill pipe joints.
Solution Approach 2:
The patent changes the communication parameter from wired electrical signal transmission to acoustic mud pulse transmission when the wired system fails. This parameter change in the transmission medium allows the system to maintain communication functionality under different physical conditions, switching between high-speed wired transmission and reliable acoustic transmission as needed.
3Reliability
If mud pulse telemetry is used to transmit data through drilling fluid flow, then communication continuity is maintained during drilling operations, but the data transmission rate is significantly lower compared to wired drill pipe telemetry
Solution Approach 1:
The patent merges the advantages of both telemetry systems by combining the mud pulse telemetry system (providing communication continuity) with the wired drill pipe telemetry system (providing high-speed transmission). The combination allows the system to benefit from both the reliability of mud pulse communication and the high productivity of wired transmission when available.
Solution Approach 2:
The patent implements dynamics by making the telemetry system configuration adaptable based on real-time drilling conditions. The system can dynamically switch between mud pulse telemetry and wired drill pipe telemetry depending on whether communication continuity or high-speed transmission is the priority, allowing flexible optimization of performance characteristics.
Data Source
AI summary
A system and a method use dual telemetry for tools located in a wellbore. A first telemetry system and a second telemetry system coordinate communication with the tools. Both the first telemetry system and the second telemetry system may transmit data regarding the tools and/or drilling conditions from the tools to a surface location simultaneously. The first telemetry system or the second telemetry system may communicate with the surface location if communication using the other telemetry system is interrupted. The first telemetry system and the second telemetry system may have a master/slave relationship so that data requests from a specific telemetry system do not interfere with data requests from the other telemetry system.