How to deal with geothermal well mud

Geothermal well mud refers to the mud used for geothermal well drilling. How to deal with geothermal well mud? The most prominent feature of geothermal well mud is its resistance to high temperature. High temperature will cause mud clay to disperse, thicken, and even solidify due to high temperature, which will damage the performance of the mud. Block the closed production layer and so on. Therefore, mud treatment of geothermal wells is a key problem in geothermal drilling. The mud treatment process of geothermal wells must be equipped with corresponding professional solid-phase control equipment. The use of geothermal well mud is mainly determined by the specific temperature of the geothermal well.

Geothermal well mud has the following characteristics:
1) Control blowout: not suitable for using high-density mud
2) Mud treatment agent: Due to the high temperature of the geothermal well, the mud treatment agent should be guaranteed to be above 150°C to maintain stable mud performance.
3) Heavy metal preparations: it is strictly prohibited to use to prevent environmental pollution.
4) Fine solid phase particles: ensure that the content of solid phase particles is the lowest value.
5) Mud treatment equipment: must be equipped with solid phase control equipment

Requirements for the mud use system of geothermal wells:

1) Conventional mud is used for drilling into the surface overburden.
2) Use low-solid mud from the bottom of the surface to above the thermal reservoir.
3) Use high-quality mud for drilling through hot water-type thermal reservoirs, use low-end bentonite mud for well temperatures below 200°C; use sepiolite mud for well temperatures greater than 200°C.

According to the above-mentioned characteristics and use requirements of geothermal well mud, the most important principle of geothermal well mud treatment is to meet the temperature resistance requirements of the mud.

BZ Solids Control can treat the mud solid particles produced by different geothermal well temperatures. The equipment of the geothermal well mud solids control treatment system includes: mud shaker, cyclone desander, desilter, mud cleaner, centrifuge, sand pump, shear pump, submerged slurry pump, mud agitator, jet Mud mixing devices, mud guns, grit tanks, purification tanks and other equipment, as well as integrated 120 cubic meters, 240 cubic meters and other geothermal well mud solids control systems. Through the treatment of geothermal well mud solids control equipment, the solid content in the mud can be effectively controlled, the solid particles in the mud can be controlled below 5 μm to 15 μm, and the life of the mud pump and drilling rig can be prolonged, and the drilling speed can be increased.

With many years of experience in mud purification systems, coalbed methane drilling, and geothermal well drilling mud processing, BZ Solids Control has completed the configuration of integrated mud processing solutions and equipment systems for coalbed methane and geothermal well projects in many areas in China. For more “geothermal wells, coalbed methane drilling mud purification system” processing technical solutions and equipment, please call us: +86-316-5166559