Concentric Conduit Steam Injection Control for Well Zones
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Solution Overview
Problem
Current steam injection systems for hydrocarbon well completion lack precise control over steam distribution, leading to inefficient bitumen recovery and increased operational costs due to poor chamber formation and energy wastage.
Innovation Solution
A system comprising a primary conduit with multiple concentric conduits of decreasing diameter, each fluidly sealed and modularly connected via compression couplings, allowing for precise control of steam injection into multiple zones within the well.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single conduit system is used for steam injection, then the device structure is simple, but the control precision over steam distribution is poor
Solution Approach 1:
The single conduit system is divided into multiple concentric conduits (first conduit, second conduit, third conduit) that are fluidly sealed from one another. Each conduit can independently inject steam into different zones of the reservoir, enabling precise control over steam distribution while maintaining a relatively integrated structure.
Solution Approach 2:
Multiple conduits are arranged concentrically within each other, with the first conduit having the largest diameter, the second conduit having a smaller diameter nested within the first, and the third conduit having the smallest diameter nested within the second. This nested arrangement allows multiple injection zones to be achieved within a single wellbore structure.
2Productivity
If steam injection is used to reduce bitumen viscosity, then the energy recovery efficiency is improved, but the operational costs increase due to poor chamber formation and energy wastage
Solution Approach 1:
Each conduit is configured to inject steam into specific zones of the reservoir based on local requirements. The first conduit targets upper zones, the second conduit targets intermediate zones, and the third conduit targets lower zones, allowing optimized steam distribution that improves chamber formation and reduces energy wastage.
Solution Approach 2:
The system allows dynamic control of steam injection rates and timing for each conduit independently. This enables real-time adjustment of steam distribution to match reservoir response, optimizing energy utilization and reducing wastage while maintaining high recovery efficiency.
Data Source
AI summary
Various embodiments of the present disclosure include a system, method, and apparatus for increased control of steam injection for use in oil and gas recovery in a well. Embodiments can comprise a plurality of controllable zones of injection disposed in the well. The plurality of controllable zones include a primary conduit that houses a plurality of concentric conduits of decreasing diameter disposed inside of the primary conduit. In some embodiments, each of the concentric conduits includes a proximal end and a distal end. In some embodiments, each of the plurality of concentric conduits are fluidly sealed from one another from their respective proximal end to distal end.