The Cluster Selection Module is a key control module used in oil logging and perforation operations to achieve precise and segmented initiation of multiple clusters of perforating guns. It is usually integrated into the perforating gun string and can independently or in groups ignite the perforating gun cluster according to ground instructions or preset programs, thereby achieving multi-cluster segmented, fixed-point and timed perforation operations. This module is widely used in complex well conditions such as horizontal wells and multi-stage fracturing, and it is an important device for improving perforation accuracy and optimizing fracturing effects.
Key Advantages of Cluster Selection Module
■ Improve Perforation Efficiency-Multiple clusters of perforations can be completed in one well entry, reducing the number of times the drill is lifted and lowered, and shortening the operation cycle.
■ Optimizing Fracturing Effect-Through precisely controlling the perforation position and sequence, it helps to achieve uniform fracturing and improve the reservoir modification effect.
■ Reduce Operational Risks- Reduced manual intervention and enhance operational safety; The module is equipped with a self-checking function to reduce the risk of accidental ignition
■ Cost Savings-Reduced operation time and equipment wear and tear, significantly lowering the overall cost.
■ Wide Application Range- Used in various well types such as horizontal wells, highly deviated wells, and multi-stage fracturing wells.
■ Safe & Reliable-The overload protection of the electronic transmission module reduces the instrument damage rate to 0%, and enables real-time monitoring and intelligent transmission, enhancing the safety factor of the operation.
■ Flexible & Customizable-Supports various perforation processes such as positive pressure, negative pressure, directional, planar, segmented and clustered, and can precisely perforate different reservoirs including shale gas, tight oil and coalbed methane.
Application Scenarios
The applications scenarios of Cluster Selection Module are as below follows:
◆ Horizontal Well Staged Fracturing
In the development of unconventional resources such as shale gas and tight oil, the cluster selection and development module can achieve multi-stage and multi-cluster perforation, which, in combination with fracturing operations, can increase production capacity.
◆ Development of Multi-layer Oil & Gas Reservoirs
Used for fixed-point perforation in multi-layer oil and gas reservoirs to avoid interlayer interference and enhance oil recovery.
◆ Perforation operation in complex structure Wells
Such as large-displacement wells and multi-branch wells, precise operations are achieved through modular selection and development.
◆ Secondary Renovation of the Old Well
In operations such as potential tapping and repeated fracturing of old wells, precise hole filling and segmented modification are achieved.
◆ Plug-Perforate-Fracture Integration
Complete bridge plug setting, cluster perforation and fracturing in one go into the well, It is suitable for complex reservoirs with alternating high and low permeability
◆ Deep Wells & High-Pressure Wells
The modular perforator resistant to high temperature and high pressure can operate safely in ultra-deep wells of 8000 m.
◆ Directional/Phased Perforating
Through directional selective perforation, 360° all-round perforation or multi-hole perforation with the same cross-section can be achieved, optimizing the crack direction and enhancing the renovation effect.
◆ Graded Safety Perforation
The electronic detonator module enables low-voltage and long-distance ignition, making it suitable for extreme environments and deep well safety requirements.
Our Cluster Selection Module
Summary & Prospect of Cluster Selection Module
The Cluster Selection Module and development module has achieved efficient, low-cost and safe operation of multi-cluster, segmented, directional/planar perforation in a single well entry through four major technological breakthroughs: modular structure, digital control, overload protection and high-temperature and high-pressure adaptability. With the continuous iteration of information-based selection and distribution software, segmented and clustered optimization algorithms, and electronic detonator staged detonation, the clustered selection and distribution module will play a greater role in deep Wells, ultra-high pressure, and more complex reservoir modification, becoming an indispensable key technology in modern oil and gas development.
In the future, as oil and gas exploration and development move deeper into strata and more complex geological conditions, cluster selection and development modules will continue to evolve towards higher temperature and pressure resistance levels, more intelligent control logic (such as adaptively adjusting perforation schemes in combination with real-time logging data), as well as stronger reliability and safety.
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