Drilling mud jet grout pump
A drilling mud jet grout pump is a specialized high-pressure pumping system designed for dual applications in geotechnical and drilling operations: circulating drilling mud during drilling and injecting grout for soil stabilization or jet grouting. This hybrid system combines the functionalities of traditional drilling mud pumps and jet grouting equipment, making it ideal for scenarios where borehole stabilization and ground improvement are required simultaneously.
A drilling mud jet grout pump is a specialized high-pressure pumping system designed for dual applications in geotechnical and drilling operations: circulating drilling mud during drilling and injecting grout for soil stabilization or jet grouting. This hybrid system combines the functionalities of traditional drilling mud pumps and jet grouting equipment, making it ideal for scenarios where borehole stabilization and ground improvement are required simultaneously.


Working principle of drilling mud jet grout pump:
1. Drilling Mud Mode:
– Circulates drilling mud through the drill string to cool the bit, remove cuttings, and maintain borehole pressure.
– Operates at lower pressure (500–3,000 psi) but high flow rates (e.g., 200–1,000 GPM).
2. Jet Grouting Mode:
– Switches to high-pressure injection (5,000–10,000+ psi) to fracture soil and inject grout.
– Uses a rotating nozzle to create soil-cement columns (solicrete) for stabilization.


Applications of drilling mud jet grout pump:
– Oil & Gas Wellbore Stabilization:
– Inject grout to seal unstable formations during drilling, preventing collapses or fluid loss.
– Reinforce borehole walls in weak or fractured rock.
– Geotechnical Engineering:
– Jet grouting for soil stabilization in foundations, tunnels, or underground structures.
– Creating impermeable barriers (e.g., for groundwater control or contaminated site remediation).
– Mining:
– Stabilizing mine shafts or tailings dams using grout columns.
– Horizontal Directional Drilling (HDD):
– Lubricate drill strings with mud while simultaneously grouting the drilled pathway.