WR1000S

💧 WR1000S 1000m Telescopic Mast Crawler Water Well Drilling Rig

The WR1000S is a heavy-duty crawler-mounted fully hydraulic drilling rig designed for 1000-meter-class ultra-deep water wells, large-scale mining water supply, industrial water, and geothermal surveys. The rig adopts a telescopic mast structure, supports 6 m drill pipes, achieves a maximum drilling depth of 1000 m and a borehole diameter of 105–800 mm, and is equipped with 52 T lifting force, 26000 / 13000 N·m rotary torque, and 194 kW diesel power. It is suitable for deep-hole projects with long construction cycles, large borehole diameters, complex formations, and high drill string handling requirements.

🌐 The 1000-meter-class rig has entered the ultra-deep water well construction range

Compared with 600-meter and 750-meter-class models, the core value of the WR1000S lies in greater depth reserve and stronger drill string control capability. For areas where shallow and medium-depth groundwater cannot meet water supply needs, deep aquifers are buried at greater depths, or projects require large-depth investigation, a 1000-meter-class rig can provide a larger construction range. The actual well depth still needs to be determined based on hydrogeological data, formation structure, and target aquifers.

🪜 Telescopic mast reduces the difficulty of relocating large deep-hole equipment

The S in the model represents telescopic mast. For a 1000-meter-class heavy-duty drilling rig, transportation and on-site relocation are themselves an important part of project organization. The telescopic mast can reduce the overall machine profile in transport condition while maintaining the working height required for deep-hole construction in operating condition, thereby balancing loading, road passage, and 6 m drill pipe operation capability.

🔩 6-meter drill pipes are more suitable for continuous ultra-deep hole construction

The WR1000S uses 6 m drill pipes, with a recommended drill pipe diameter of 114 mm. For 1000-meter-class boreholes, using too-short drill pipes would greatly increase the number of connections and disconnections, and auxiliary time and labor intensity would quickly accumulate. 6 m drill pipes can reduce the number of connections and are more suitable for long-cycle deep-hole construction. Drill pipe threads, straightness, and fatigue condition should be included in continuous inspection.

💪 52 T lifting force is an important guarantee for deep-hole drill string control

At 1000-meter-class hole depths, drill pipe self-weight, borehole wall friction, casing weight, and local sticking all place higher demands on the lifting system. The WR1000S provides 52 T lifting force and 8 T axial pressure, which can be used for normal tripping, deep-hole drill tool recovery, and some large-size casing operations. When abnormal resistance is encountered, priority should be given to handling it through hole cleaning, slow lifting, and judgment of in-hole conditions.

🔄 26000 / 13000 N·m rotary torque is suitable for large-diameter and high-load drilling

The rotary system has a maximum torque of 26000 / 13000 N·m, corresponding to maximum speeds of 70 / 140 r/min. Lower speed and high torque conditions are more suitable for large-diameter, hard rock, and high-friction hole sections; higher speeds can be used for stages with relatively lower resistance. In 1000-meter deep holes, rotary parameters should be dynamically adjusted according to drill string load and cuttings return conditions.

🕳️ 105–800 mm borehole diameter range covers large water wells and engineering holes

The borehole diameter range of 105–800 mm can cover multiple needs from conventional deep water wells to large-diameter engineering holes. Larger diameters can be used for large well casings, high-flow pumping, and some large dewatering projects, but the larger the diameter, the higher the requirements for air compressors, drilling tools, casing, and overall machine load. Therefore, conventional construction cannot be carried out only according to the maximum diameter.

💨 1.6–8 MPa working air pressure adapts to higher-load down-the-hole drilling

The recommended working air pressure is 1.6–8 MPa, with air consumption of 16–96 m³/min. 1000-meter-class deep holes and large-diameter hard rock projects have very high pressure and displacement requirements for air compressors. Actual selection should be comprehensively determined based on the DTH hammer, borehole diameter, hole depth, altitude, and rock hardness. Insufficient displacement will directly affect impact and cuttings removal efficiency.

💎 Hard rock deep holes such as granite, basalt, and limestone

In intact hard rock, medium- and high-pressure DTH hammers can be used for DTH drilling. In 1000-meter-class deep holes, the transport distance of rock cuttings at the hole bottom is long. If cuttings removal is insufficient, sediment and repeated crushing are likely to form, further increasing torque and energy consumption. Therefore, hard rock deep holes require more stable air volume, good lubrication, and continuous hole cleaning.

🌧️ Loose overburden and upper soft formations

The WR1000S also supports mud rotary drilling. For soil layers, clay, sand layers, and gravel layers, the stability of the upper hole section directly affects subsequent deep-hole construction. Mud, casing, and other wall protection methods can be used to first establish a stable hole section, then switch to the DTH process when entering rock formations.

🧱 Fracture zones, fissures, and air-loss layers

When a deep hole passes through a fault fracture zone, block falling, diameter reduction, air loss, and sticking may occur. After entering such hole sections, excessively fast advancement should be reduced, hole cleaning should be strengthened, and casing, foam, or other hole stabilization measures should be used as appropriate. In case of severe air loss, the scale of fissures and cavities should be analyzed rather than relying only on increasing air compressor pressure.

💧 Strong water inflow and main aquifers

After entering the main deep aquifer, water inflow will change cuttings removal, the DTH hammer, and pressure conditions in the hole. The depth of the main water-producing layer should be recorded, and the air supply, hole cleaning, and casing plan should be adjusted according to the water inflow. During well completion, filter pipes, water-stop sections, and the final pump type should also be designed according to aquifer distribution.

🌾 Deep agricultural irrigation and large farm projects

Agricultural areas with deep groundwater levels, large farms, and arid regions may require deep wells of more than 500 meters. The WR1000S has a 1000-meter-class depth reserve and can be used for deep agricultural irrigation wells and high-flow water well construction. The project should determine well diameter and completion structure based on irrigation area, water output demand, and aquifer conditions.

🏠 Deep drinking water and large community water supply

For communities and infrastructure projects with insufficient shallow water sources and large water supply scale, the WR1000S can be used for large-scale deep groundwater development. Hydrogeological surveys and water quality evaluations should be carried out before formal construction. The equipment provides deep-hole construction capability and cannot replace aquifer evaluation and water supply design.

⛏️ Mining water supply, dust suppression, and auxiliary production

Large mines often require long-term stable domestic and production auxiliary water sources. The WR1000S's crawler chassis, 52 T lifting force, and 194 kW power are more suitable for high-load mining water well projects and can be used for camp water supply, dust suppression, equipment cleaning, and some production auxiliary water.

🌊 Open-pit mine and large engineering dewatering boreholes

The 1000-meter-class depth and 800 mm maximum borehole diameter enable the equipment to undertake some large dewatering boreholes. Dewatering projects should determine hole positions, well spacing, well diameter, filter pipes, and pump capacity based on hydrogeological data. The drilling rig is responsible for hole completion and cannot replace complete dewatering design.

♨️ Geothermal surveys and temperature gradient holes

The WR1000S is also suitable for some geothermal surveys and temperature gradient boreholes. In addition to drilling depth, such projects also need to consider formation temperature, wellbore stability, casing materials, and circulation methods. If formal geothermal development wells are involved, drilling tools and completion structures should be determined according to special design.

🚀 30 m/min fast lifting and 61 m/min fast advancement

The fast lifting speed is 30 m/min, and the fast advancement speed is 61 m/min, mainly used for power head return, drill pipe operations, and auxiliary actions. In 1000-meter-class hole depths, a single auxiliary time may seem small, but long-term accumulation will significantly affect the total construction period. Therefore, the combination of fast actions and 6 m drill pipes is more valuable.

⚡ 194 kW diesel power provides power reserve for ultra-deep holes

The 194 kW diesel engine provides power for rotation, feed, crawler travel, and auxiliary systems. Ultra-deep hole construction has long duration and high load, so engine cooling, air filtration, fuel system, and hydraulic oil temperature maintenance should be strengthened to avoid power decline caused by high temperature and dust.

🚜 5 km/h crawler travel improves internal relocation efficiency on large sites

The equipment travel speed is about 5 km/h, and the maximum climbing angle is referenced at 21°. For 17.8 T heavy-duty equipment, this travel speed is mainly used for relocation within the site and between hole positions. Before actual movement, road bearing capacity, slope, turning radius, and soft ground conditions should be confirmed.

🦵 1.7-meter hydraulic outriggers are used for leveling large deep-hole equipment

The hydraulic outrigger stroke is 1.7 m, which can help level and stabilize the equipment on uneven platforms. 1000-meter-class construction has a long cycle, and the level state of the equipment directly affects mast stress, hole deviation, and operation safety. Sufficiently large pads should be used on soft ground to prevent long-term settlement.

🧵 2.5 T auxiliary winch reduces the difficulty of handling heavy drilling tools

The auxiliary winch has a lifting force of 2.5 T and can be used for handling DTH hammers, drill pipes, casing tools, and other on-site accessories. Ultra-deep hole projects have more and heavier supporting drilling tools, so lifting routes and material placement areas should be reasonably planned to avoid affecting the main machine's operating space.

📦 17.8 T overall machine transportation must be planned in advance

The overall machine weight is about 17.8 T, and the overall dimensions are about 7.3 × 2.25 × 2.75 m. During transportation, it is necessary to confirm the flatbed truck load, road width limits, height limits, and bridge bearing capacity; the telescopic mast must be reliably locked, and 6 m drill pipes and casing should be secured separately. After arriving at the site, sufficient space should also be reserved for mast deployment and air compressor placement.

🧰 Mud pump, centrifugal pump, generator, and foam pump are optional

According to formation and project requirements, mud pumps, centrifugal pumps, generators, and foam pumps are optional. Loose formation projects rely more on mud systems, hard rock deep holes rely more on high-displacement air compressors and DTH hammers, and fractured and air-loss formations may require foam assistance. Reasonable optional configuration is more important than simply stacking accessories.

⚠️ Precautions for 1000-meter ultra-deep hole construction and maintenance

Before daily construction, inspect the engine, hydraulic system, telescopic mast, outriggers, crawler, auxiliary winch, high-pressure air pipes, and drill pipes; continuously record changes in torque, air pressure, cuttings return, water return, and lifting resistance during the deep-hole stage; when using 6 m drill pipes, the mast must be confirmed to be fully deployed and reliably locked, and any trend abnormality should be promptly stopped for analysis.

Due to differences in actual geological conditions, in-hole tools, drilling angles, and operating methods, the final drilling efficiency, drilling depth, and well completion effect should be based on on-site working conditions.

📊 Main Technical Parameters