Atomization Generator for Oil Recovery
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Solution Overview
Problem
In oil and gas fields, the uniform mixing of chemical agents with nitrogen and other fluids is challenging, leading to reduced effectiveness of chemical agents used for enhancing recovery, as they fail to fully contact crude oil due to viscosity and blockage issues, necessitating higher usage and costs.
Innovation Solution
An atomization generator and high-pressure atomization device that disperses chemical agents into nitrogen to form a uniform and stable atomized fluid, utilizing a stainless steel gas distribution pipe with small holes and rotatable spiral stirring blocks to ensure thorough mixing and reduce turbulence, allowing for efficient contact with crude oil and expanded swept volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If chemical agent is injected with nitrogen using conventional methods, then the chemical agent can be delivered to the formation, but the chemical agent cannot be atomized and fails to mix uniformly with crude oil, reducing effectiveness
Solution Approach 1:
The chemical agent is segmented into fine droplets through atomization at the nozzle, creating numerous small liquid particles that can be easily dispersed and mixed with nitrogen and crude oil throughout the formation, significantly improving contact area and effectiveness
Solution Approach 2:
High-pressure nitrogen gas is used to atomize the chemical agent at the injection nozzle, utilizing pneumatic forces to break up the liquid into fine droplets and maintain uniform mixing throughout the injection process
2Device complexity
If slugging injection method is used for chemical agent and nitrogen, then the injection process is simple, but the different fluids are difficult to mix uniformly due to slugging effect in formation channels
Solution Approach 1:
The chemical agent is pre-atomized into fine droplets before injection, and nitrogen is pre-mixed with the atomized agent at the nozzle, ensuring uniform distribution is achieved before the fluids enter the formation channels, preventing slugging effects
Solution Approach 2:
The physical state of the chemical agent is changed from liquid to atomized droplets, and the injection parameters are optimized with high-pressure nitrogen to maintain uniform mixing throughout the injection process, transforming the injection mechanism from slugging to atomized flow
3Device complexity
If chemical agent is injected without atomization, then the injection equipment is simpler, but the chemical agent cannot fully contact crude oil, requiring higher usage amounts and increasing costs
Solution Approach 1:
The chemical agent is segmented into fine droplets through atomization, dramatically increasing the surface area to volume ratio and enabling complete contact with crude oil throughout the formation, maximizing effectiveness per unit of chemical agent used
Solution Approach 2:
The chemical agent is transformed from a continuous liquid stream to a three-dimensional atomized spray pattern, enabling penetration and contact throughout the entire crude oil reservoir volume rather than forming a separate liquid phase
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
The device enables full contact of chemical agents with crude oil, reducing overall agent usage, lowering costs, and enhancing oil and gas recovery rates by ensuring uniform atomization and stable fluid distribution.
Implementation Method 1
A gas inlet pipe is arranged at a front end of the gas inlet cap. An end of the gas inlet pipe is connected with a high-pressure gas inlet pipeline, and an other end of the gas inlet pipe arranged in the gas inlet cap is provided with the gas distribution pipe which is a pipeline provided with circumferentially provided with several small holes
Implementation Method 2
Rotatable stirring blocks are arranged inside the atomization generator barrel body
Implementation Method 3
End parts of the liquid inlet pipes arranged in the atomization generator barrel body are provided with sprayers
Data Source
AI summary
An atomization generator and a special high-pressure atomization generation device for increasing oil and gas field recovery are provided. The special high-pressure atomization generation device for increasing oil and gas field recovery includes an agent pot assembly, a gear pump, a metering pump, an atomization generator and pipelines. The gear pump is connected with the agent pot assembly through an agent pot liquid inlet pipe. The metering pump is arranged between the agent pot assembly and the atomization generator which are connected through the low-pressure manifold pipeline and the high-pressure liquid inlet pipeline. The high-pressure liquid inlet pipeline is connected with the liquid inlet pipe. The liquid inlet pipes are connected with the metering pump. The gas inlet pipe is connected with the high-pressure gas source through the high-pressure gas inlet pipe. The gas inlet cap is provided with a gas inlet pipe.