Replaceable Downhole Electronics Hub for Tubular Systems
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Solution Overview
Problem
The existing resource exploration and recovery systems require costly and time-consuming processes for upgrading or replacing downhole devices, as they often necessitate withdrawing the entire string of tubulars from the wellbore for repairs or upgrades, and multiple intervention trips are needed for multiple device replacements.
Innovation Solution
A tubular system with a selectively replaceable electronics hub that can be mounted and secured within the tubulars, allowing for communication between the surface system and downhole devices, enabling the hub to be disconnected, updated, or replaced without withdrawing the entire string from the wellbore, using a wireline lock for secure detachment and reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the entire string of tubulars is withdrawn from the wellbore for device replacement or upgrade, then the downhole devices can be accessed and modified, but the process becomes costly and time-consuming
Solution Approach 1:
The system divides the tubular string into modular sections with independently replaceable downhole devices. Each device is accessible through a dedicated access port in the tubular wall, allowing individual device replacement without affecting the entire tubular string. This segmentation enables targeted maintenance operations that reduce both time and cost compared to complete string withdrawal.
2Ease of repair
If multiple intervention trips are made to replace multiple downhole devices, then each device can be individually serviced, but the number of trips and associated costs increase
Solution Approach 1:
The system combines multiple downhole devices into a single integrated tubular string with multiple access ports. This configuration allows multiple devices to be serviced during a single intervention trip by accessing each device through its respective port. The merging of multiple serviceable units into one accessible assembly eliminates the need for separate trips for each device, thereby improving operational efficiency and reducing overall intervention time.
3Ease of operation
If downhole devices are made independently retrievable, then device replacement is possible without pulling the string, but multiple separate trips are required for multiple devices
Solution Approach 1:
The tubular string is designed with universal access ports and standardized device interfaces that accommodate multiple different downhole devices. This multi-functional design allows various devices to be installed, removed, and replaced through the same access mechanism without requiring separate retrieval procedures for each device type. The universal interface enables efficient servicing of multiple devices in a single intervention trip.
Data Source
AI summary
A tubular system includes a tubular having an outer surface and an inner surface defining a flow path, one of the inner surface and the outer surface includes a hub receiving recess, and an electronics hub detachably mounted in the hub receiving recess, the electronics hub including an input conductor connector and at least one output conductor connectors and a control module that facilitates communication between a surface system and one or more downhole devices.