About Us
about al-hafeer
Pioneering towards achieving professional standards
Al-Hafeer Horizontal Tunnels Contracting Establishment is set up to meet the growing needs of the Saudi market and the regional environment for horizontal drilling and tunnel drilling works with the latest modern technical techniques and engineering staff with the ability, skill, and passion.
We execute many development and infrastructure projects for customers and government agencies including Water Company, Electricity Company, Ministry of Municipal and Rural Affairs, Ministry of Environment, Water and Agriculture. with full commitment to accuracy, efficiency, schedule, quality, and professional safety standards.
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HORIZONTAL DIRECTIONAL DRILLING INTRODUCTION
Horizontal Directional Drilling (HDD) offers a trenchless construction methodology for traversing challenging obstructions encountered along pipeline routes. These obstacles can encompass roads, rivers, ecologically sensitive areas, and similar impediments. By eliminating the need for extensive excavation and trenching, HDD minimizes environmental disruption while ensuring uninterrupted service across the crossed obstacle.
This technique leverages established directional drilling practices, commonly employed in the energy sector for oil and gas well construction and adapts them for precise underground navigation. Through this method, a drill bit is guided along a predetermined path beneath the obstacle, creating a designated pathway. This pathway is subsequently enlarged and reinforced to accommodate the installation of the intended pipeline or conduit. As a result, HDD provides a robust and environmentally responsible solution for pipeline installation across diverse challenging terrains.
Evolution of HDD Technology
The Sequential Stages of Horizontal Directional Drilling Technology
Pilot Hole Construction
The process commences with the creation of a small-diameter pilot hole. This is achieved by utilizing a remotely controlled drilling assembly that propels a drill pipe along a precisely designed, curved path beneath the obstacle
Reaming the Passage
Following the creation of the pilot hole, the diameter is meticulously expanded to accommodate the pipeline. This crucial stage, known as reaming, employs specialized tools to widen the passage while maintaining its structural integrity
Pipeline Installation
The final stage involves the meticulous installation of the pipeline into the reamed passage. This delicate process ensures the secure and proper placement of the pipeline within the designated underground pathway
Evolution of HDD Technology
The Sequential Stages of Horizontal Directional Drilling Technology
Pilot Hole Construction
The process commences with the creation of a small-diameter pilot hole. This is achieved by utilizing a remotely controlled drilling assembly that propels a drill pipe along a precisely designed, curved path beneath the obstacle
Reaming the Passage
Following the creation of the pilot hole, the diameter is meticulously expanded to accommodate the pipeline. This crucial stage, known as reaming, employs specialized tools to widen the passage while maintaining its structural integrity
Pipeline Installation
The final stage involves the meticulous installation of the pipeline into the reamed passage. This delicate process ensures the secure and proper placement of the pipeline within the designated underground pathway
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