Electromagnetic Intelligent Control Sliding Sleeve for Fracking
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Solution Overview
Problem
Current fracturing tools for oil and gas wells face limitations in achieving precise and limitless fracturing stages due to mechanical and hydraulic constraints, including cumbersome construction processes and inaccurate pressure control.
Innovation Solution
A fracking tool with an electromagnetic intelligent control sliding sleeve, comprising an outer sleeve section, a dart body section, and a control section, utilizing a magnetic induction coil, strain sensors, and a circuit with modules for precise positioning and activation, allowing for limitless fracturing stages with accurate control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical type sliding sleeves are used to achieve unlimited fracturing stages, then the number of fracturing stages can be increased, but the construction period becomes cumbersome and long
Solution Approach 1:
The patent replaces the mechanical switching system with an electromagnetic control system. The sliding sleeve is actuated by an electromagnetic motor that can be controlled remotely, eliminating the need for complex mechanical switching operations during construction. This allows for unlimited fracturing stages to be achieved without increasing construction time, as the electromagnetic actuation can be performed quickly and remotely.
2Loss of time
If hydraulic type sliding sleeves are used to achieve unlimited fracturing, then the construction period is shortened, but the hydraulic pressure control becomes difficult and fracturing accuracy is reduced
Solution Approach 1:
The patent replaces the hydraulic pressure control system with an electromagnetic control system. The electromagnetic motor provides precise control of the sliding sleeve actuation through electrical signals, enabling accurate positioning and timing of each fracturing stage. This electromagnetic actuation mechanism offers superior control precision compared to hydraulic systems, while maintaining short construction periods.
3Device complexity
If pitching type sliding sleeves are used, then the structure is simple, but the number of fracturing stages is limited by the number of sliding sleeves that can be installed
Solution Approach 1:
The patent creates a universal sliding sleeve design that can be used for unlimited fracturing stages. The electromagnetic actuation system allows a single type of sliding sleeve to be repeatedly deployed and actuated at different depths, replacing the need for multiple specialized pitching-type sleeves. This universal design maintains structural simplicity while enabling unlimited fracturing stages through remote electromagnetic control.
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 precise and limitless fracturing stages with accurate positioning and control, overcoming previous limitations by using electromagnetic signals to activate and control the sliding sleeve, ensuring efficient and accurate fracturing operations.
Implementation Method 1
a magnetic induction coil, allowing for limitless fracturing stages with accurate control
Implementation Method 2
a magnetic sensor cover and a magnetic sensor
Implementation Method 3
a strain sensor cover and a strain sensor
Data Source
AI summary
An oil and gas fracturing tool is disclosed, mainly involving a fracking tool with an electromagnetic intelligent control sliding sleeve including an outer sleeve section, a dart body section and a control section. The outer sleeve section is at the target location to be fractured. The effect of fracturing is mainly achieved by the dart body, which has an activated state and an inactive state. The initial state is inactive, and the front locking tip can be deformed under pressure during displacement. The diameter can change to pass through any sliding sleeve. When the dart body is counted and is about to reach the fracturing position, the front locking tip is blocked from deformation and cannot be reduced in diameter, thus pressurizing to control the fracturing effect. The control part includes a sensor module, a drive module, a main control module and a power supply module.