HDD Mud Recovery

HDD Mud Recovery System Description:

The Horizontal Directional Crossing (HDD) mud recovery system is a mud treatment device specifically designed for horizontal directional drilling operations to enable efficient mud recovery and recycling while reducing environmental impact.

Horizontal Directional Drilling (HDD) technology has become a perfect construction method. It is used to lay pipelines for oil, natural gas, tap water, sewage and other fluids across rivers and canals, streets, highways, railways, airport runways, beaches, islands, crowded places with buildings, pipeline channels and canals, and to lay conduits for power and telecommunication cables. In recent years, the horizontal directional drilling technology has shown advantages in environmental protection and municipal pipeline network expansion projects and large-scale pipeline crossing river projects. The combination of mud recycling system and horizontal directional drilling rig matching construction completes the construction of pipeline crossing.

HDD horizontal directional drilling mud requirements

In horizontal directional drilling (HDD) construction, mud (drilling fluid) plays a vital role, directly affecting drilling efficiency, hole wall stability and drill lubrication. The following are the main performance requirements of HDD mud:

Basic performance requirements:

●Carrying drill cuttings: The mud must have good suspension ability to ensure that the drill cuttings are effectively carried out of the borehole.

●Lubricating drill tools: Reduce the friction between the drill rod and the hole wall, reduce torque and drag.

●Stabilize the hole wall: Prevent hole collapse and diameter reduction, especially in loose formations or aquifers.

●Cooling the drill bit: Reduce the temperature of the drill bit and extend its service life.

●Controlling formation pressure: Balance formation pressure to prevent water inrush or leakage.

HDD mud recovery system main equipment:

● Shale shaker: used to separate drilling cuttings and solid particles in the mud.
● Desander: remove the sand in the mud and improve the cleanliness of the mud.
● Desilter: further separation of fine solid particles.
● Centrifuge: used for processing high-density mud and separating ultrafine particles.
● Mud mixing tank: used for mixing and storing mud.
● Mud pump: Transport mud to each processing unit.
● Manifold system: Connect the equipment to ensure smooth mud flow.

HDD Mud Recovery System Configuration Parameters

HDD Mud Recovery System process flow:

The liquid supply pump transports the mud in the mud pool to the recording tank of the shale shaker. After being processed by the shale shaker, the larger drill cuttings are separated and the treated mud flows back to the below desander liquid supply tank. The desander pump then transports the mud in the desander liquid supply tank to the desander cyclone. The mud treated by the desander cyclone overflows into the desander liquid supply tank. Then the desander pump transports the mud in the desander liquid supply tank to the desander cyclone. The mud processed by the desander cyclone overflows into the slurry storage tank and is pumped into the horizontal directional crossing system by the drilling mud pump for repeated use: In order to change the mud density, viscosity and other parameters to meet the mud performance requirements, the required mud materials are added through the slurry mixing device, and after being mixed evenly to meet the use requirements, they are pumped into the horizontal directional crossing system by the mud pump for repeated use.

Benefits of HDD Mud Recovery System:

● Efficient purification: The three-stage purification process ensures that the solid particles in the mud are completely separated, and the purification effect is remarkable.
● Energy saving and environmental protection: mud recycling reduces the use of new materials, reduces construction costs, and reduces waste emissions, meeting environmental requirements.
● Convenient operation: reasonable system design, simple operation, easy maintenance, suitable for long-term continuous operation.

HDD Mud Recovery System application field

Oil and gas pipeline laying: used for horizontal directional drilling of long distance oil and gas pipelines.
Municipal engineering: suitable for laying urban underground pipelines (such as water pipes, cables).
River crossing: for rivers, lakes and other waters of the pipeline crossing project.
Complex geology: adapt to sand, clay and other complex geological conditions.

Through efficient mud treatment and recycling, Black Rhino mud recycling purification system provides economic and environmentally friendly solutions for construction projects, helps improve construction efficiency and optimize costs, provides customers with one-stop services from design, manufacturing to construction support, and helps customers efficiently complete all kinds of trenchless construction projects.