Wellbore Completion System with Distributed Temperature Sensing
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Solution Overview
Problem
Efficient control over fluid flow in subterranean wellbores across multiple formations is challenging due to the difficulty in monitoring and managing fluid production or injection, often requiring expensive and invasive interventions.
Innovation Solution
A system combining a distributed sensing system, such as distributed temperature sensing, with flow control valves that can be controlled wirelessly, hydraulically, mechanically, or electrically, allowing for selective isolation and management of fluid flow between formations and the wellbore without the need for costly interventions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional completion equipment with packers and pumps is used to control fluid flow in multiple formations, then fluid flow control capability is improved, but device complexity and intervention cost increase
Solution Approach 1:
The wellbore is divided into multiple isolated zones using packers positioned between formations, allowing independent flow control for each formation. This segmentation enables selective activation or isolation of specific zones without affecting others, providing versatile flow control while maintaining manageable system complexity through modular zonal isolation.
2Measurement precision
If distributed sensing systems are implemented for real-time monitoring, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The distributed temperature sensing system is integrated with the existing completion equipment and control systems. The sensing fibers are coupled with the control apparatus to monitor temperature gradients across different zones, allowing real-time detection of fluid flow conditions and water breakthrough events without requiring separate independent monitoring infrastructure.
Solution Approach 2:
The sensing system provides continuous temperature data that feeds back to the control system, enabling real-time detection of changes in fluid flow patterns. This feedback mechanism allows operators to identify water breakthrough or formation changes and adjust flow control valves accordingly, improving measurement precision through active monitoring while managing complexity through automated response protocols.
3Ease of operation
If flow control valves are controlled without intervention, then ease of operation is improved, but reliability may worsen due to potential control failures
Solution Approach 1:
The system incorporates automated control capabilities where flow control valves can be adjusted remotely based on pre-programmed parameters or real-time sensing data. The control system can automatically respond to detected conditions such as water breakthrough or pressure changes, enabling operation without constant human intervention while maintaining reliability through automated decision-making algorithms and remote monitoring capabilities.
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
Enables efficient and cost-effective control over fluid flow, allowing for real-time monitoring and adjustment to prevent issues like water breakthrough, thereby optimizing well operations with minimal intervention.
Implementation Method 1
A completion is provided that can be used in subterranean wellbores having one or more zones. The completion comprises a distributed sensing system, such as a distributed temperature sensing system
Data Source
AI summary
A technique is provided for completing a subterranean wellbore. A wellbore completion combines a distributed sensing system, such as a distributed temperature sensing system, with at least one flow control valve and a pumping system. The flow control valve is controllable without the need for intervention or with low-cost intervention.