Wellsite Communication Apparatus for Tripping Operations
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Solution Overview
Problem
Current wellsite communication systems face challenges in maintaining continuous communication during oilfield operations, particularly during tripping operations where the rotary connector is disconnected, leading to loss of communication between surface and downhole equipment, limiting data transmission and control over downhole tools.
Innovation Solution
A system comprising a surface and downhole communication apparatus with a first coupler connectable to the uppermost drill pipe and a second coupler connectable to the top drive, supported by a frame and actuated to establish and maintain communication links between the surface and downhole systems, even when the drill string is suspended or tripping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotary connector is disconnected during tripping operations, then the drill string can be moved in and out of the wellbore, but communication between surface and downhole equipment is lost
Solution Approach 1:
The patent introduces an intermediary communication system that includes a transmitter on the surface and a receiver on the drill string, which maintains communication capability during tripping operations when the rotary connector is disconnected. This intermediary system bridges the communication gap without requiring the rotary connector to remain connected.
2Reliability
If continuous communication is maintained during tripping operations, then real-time monitoring and control are possible, but the system complexity increases
Solution Approach 1:
The patent extracts the communication function from the rotary connector and implements it as a separate, independent communication system. This allows continuous communication during tripping operations without complicating the rotary connector mechanism itself, as the communication components can be independently installed and operated.
3Productivity
If data transmission rate is increased for better downhole monitoring, then operational efficiency improves, but bandwidth requirements exceed available capacity
Solution Approach 1:
The patent implements preliminary data processing and filtering downhole before transmission, prioritizing critical operational data for transmission while deferring or eliminating less critical information. This preliminary action ensures that the limited bandwidth is used efficiently for the most important monitoring and control functions.
Data Source
AI summary
A system and method for communicating with a drill string is provided. The system includes an apparatus having a first coupler, a second coupler, a frame and an actuator. The first coupler may be operatively connectable to the drill string and the second coupler may be operatively connectable to a top drive of a handling system thereby allowing communication between a surface system and a downhole system. The frame may support the first coupler and the second coupler. The frame may be operatively connectable to the handling system. The actuator may be for moving the frame with the first and second couplers between an engaged position operatively connected to the top drive and an uppermost drill pipe, and a disengaged position a distance from the uppermost drill pipe whereby the first and second couplers selectively establish a communication link between the surface system and the downhole system.