Downhole Mixing Applicator for Composite Fluid Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing downhole treatment methods face challenges in efficiently mixing and delivering time-sensitive, environmentally sensitive composite fluids, such as cement slurries and chemical treatments, due to the need for precise temperature and pressure control and the limitations of sequential component delivery.
Innovation Solution
A system utilizing coiled tubing with multiple fluid conduits and a mixing applicator that combines fluid components at a confluence region, controlled by a data processing system and sensors to manage flow pressure and timing based on treatment procedures, ensuring accurate mixing and application at downhole sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fluid components are transported through separate conduits and mixed at a downhole mixing applicator, then the time-sensitivity and environmental sensitivity of composite fluids are better controlled, but the device complexity increases due to multiple conduits and mixing components
Solution Approach 1:
The system divides the treatment fluid into multiple separate components (first fluid component, second fluid component, third fluid component) that are transported through separate conduits (first conduit, second conduit, third conduit) to the mixing applicator. This segmentation allows each component to be controlled independently, maintaining time-sensitivity and environmental sensitivity while enabling precise mixing at the downhole location.
Solution Approach 2:
The mixing operation is moved from the surface dimension to the downhole dimension by positioning the mixing applicator at the treatment location. This spatial transformation allows mixing to occur in-situ where temperature and pressure conditions are appropriate for the composite fluid, resolving the environmental sensitivity issue.
2Device complexity
If composite fluids are mixed and delivered at surface before transport downhole, then the device complexity is reduced, but the time-sensitivity and environmental sensitivity of the treatment fluid deteriorates
Solution Approach 1:
The individual fluid components are prepared and loaded into separate conduits at the surface in advance, but the actual mixing action is delayed until the components reach the downhole mixing applicator. This preliminary preparation without premature mixing preserves the time-sensitivity and environmental sensitivity of the composite fluid while still requiring surface-based device infrastructure.
3Productivity
If multiple fluid components are mixed at downhole location, then the effectiveness of time-sensitive treatments is improved, but the precision of mixing control becomes more difficult to achieve
Solution Approach 1:
The system incorporates a control system that monitors and regulates the flow of each fluid component through its respective conduit, ensuring precise mixing ratios and timing at the downhole location. This feedback control mechanism maintains manufacturing precision despite the complexity of multi-component mixing in the downhole environment.
Solution Approach 2:
The mixing applicator serves as an intermediary device that receives separate fluid components through dedicated conduits and facilitates their controlled mixing. This intermediary structure simplifies the mixing control function by providing a dedicated mixing zone with appropriate temperature and pressure conditions, improving the precision of the mixing operation.
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
This approach enables precise and efficient delivery of multi-component treatments by controlling the timing and pressure of fluid component mixing, addressing the challenges of time-sensitivity and environmental conditions, thereby improving the effectiveness of downhole operations.
Implementation Method 1
controlled by a data processing system and sensors to manage flow pressure and timing based on treatment procedures
Data Source
Figure 1
Figure 2A~3B
Figure 4~5
AI summary
A downhole treatment system, apparatus, and methods are disclosed. In some embodiments a treatment apparatus includes a first conduit configured to transport a first fluid from a first fluid source through a first enclosed channel to a first outlet. A second conduit is configured to transport a second fluid from a second fluid source through a second enclosed channel to a second outlet. The treatment apparatus further comprises a mixing applicator that includes the first outlet positioned to provide a discharge path for the first fluid that at least partially intersects a flow path of the second fluid within a confluence region within or external to the second conduit.