Mobile drilling rig

Mobile drilling rigs can be used to perform drilling operations in dense buildings or in areas with difficult terrain. With good performance, they have compact dimensions and can be used not only for drilling water wells, but also for low-rise construction.

MBU (mobile drilling rig) of domestic production has become a real breakthrough in the domestic engineering industry. This is a universal type of special equipment that can be used both for drilling on water and for laying foundations on piles. The well drilling machine is presented in various versions of technical solutions that have a high technological resource. There are various types of MBU on the market:

• on the basis of the truck chassis KamAZ, UAZ, "Ural", GAZ;
• on a caterpillar track;
• on the pneumatic drive of the Berkut platform;
• trailed models;
• on the basis of an excavator.

The MBU can be used for "dry" drilling when conducting geotechnical works, for percussion-rope drilling, pneumatic percussion drilling, as well as for drilling with flushing and blowing. MBU are presented in two drive options:

• from the engine of the transport platform;
• from the deck engine.

The advantages of mobile drilling rigs include:

• the presence of a hydraulic transmission, which allows for infinitely variable speed control of the drill with a certain torque;
• simplicity of repair work, which boils down to replacing hydraulic equipment due to the absence of a manual gearbox;
• the possibility of smooth regulation of the rotational speed of the drilling tool using the control panel without loss of torque;
• the original design of the rotating mechanism, which does not perceive the dynamic loads arising from the operation of the hammer, which makes it possible to increase the resource of the mechanism;
• high speed of rotation, allowing to increase productivity of drilling operations due to quick assembly and disassembly of the tool.

Based on "Ural-4320" several MBU lines were developed, with various modifications and technical characteristics. With their help, you can drill wells in soils with different compositions, in any climatic and weather conditions. Among the various modifications of mobile drilling rigs there are PBUs on a car chassis, tracked units with a special manipulator, in addition to a drill bit included, self-propelled units and models that can be installed even on a passenger car with a pickup body.

All these units are united by compact size and acceptable performance. They can work in various climatic and weather conditions on all types of soil. No special skills are required when drilling. The devices are easy to operate and do not require complex maintenance. The rigs, distinguished by their compact dimensions and maneuverability, can be equipped with a set of drilling tools that can be used for "dry", directional drilling of wells, as well as for drilling wells using the technology of purging and flushing.

On the basis of KamAZ, hole drills or BKM were created, which have a large drilling radius and wide functionality:

• drilling rig;
• crane arm;
• tools for carrying out loading and unloading operations.

Mobile drilling rigs of this type are characterized by increased stability when working with high-strength soil formations, which is created by a special design with a center of gravity located at the bottom of the mechanism. The unit has a high cross-country ability and a diesel engine that provides autonomous operation. The presence of special tracks with a rubber-reinforced coating allows the use of compact and maneuverable crawler-mounted drilling rigs and in urban conditions.

Ural's capabilities allow the use of drilling equipment in areas with a relief landscape... Drilling rigs based on "Ural" are becoming the best choice for work in remote areas and hard-to-reach places, where it is difficult to deliver equipment due to off-road conditions. They will help increase the speed of delivery of drilling rigs to sites, increasing the productivity of teams providing water well drilling services.

Such models are suitable for use in urban environments when drilling needs to be carried out in dense buildings. JSC "MOZBT" has developed several drilling rigs based on UAZ "Femer" and on a pickup truck UAZ-"Patriot", which are distinguished by their mobility and good maneuverability. The drilling platform is located in the back of the pickup truck. It does not take much time and special training to put it into working condition.

This is a special FEM-new mast, which can be quickly installed on an excavator instead of a bucket and boom. The fastening system, created on the basis of brackets and cylinders, allows holes to be drilled at different angles without the fear of the excavator tipping over during operation. To move the rig to a new work site, simply fold the mechanism down.

Drilling rigs created on the basis of MTZ-80 and 82 tractors are mobile special equipment on wheeled chassis. They can be used in agriculture and single-storey construction, in municipal services, in the improvement of urban areas. The drilling rigs are installed on wheeled chassis of tractors and can be used both in urban and rural areas.

They can drill holes and pits up to 3 meters deep with a simple or telescopic auger without further cleaning. The set may include special nozzles that can be used to carry out loading and unloading operations, or various types of drilling mechanisms that allow flushing or blowing a well.

There are models in which the trailer is used as a support when drilling water wells. There are mechanisms, like the MGBU-310, in which the trailed part is used only for transporting the drilling mechanism, and during the work on the platform only a plastic container with water for drilling and a motor pump remains on the platform, through which water is supplied to the tool when drilling a well by flushing.

The scope of delivery of such equipment includes:

• drilling rig;
• trailer;
• motor pump;
• water tank;
• 28 rods, the length of which is 1.8 m;
• 2 blade-shaped augers.

The dimensions of this MBU are small; even a passenger car can deliver a trailer with equipment to the drilling site.

The main parameter for choosing such equipment are:

• well drilling depth;
• taking into account the peculiarities of the terrain in which such equipment will have to be used;
• soil features;
• engine power;
• drilling rig lifting capacity;
• working time utilization rate;
• technical and economic efficiency;
• safety of working with such equipment.

A variety of models of mobile drilling rigs allows a small company or individual entrepreneur to choose modern, high-performance and easy-to-use compact drilling equipment for drilling wells, which will help to mechanize a number of labor-intensive work operations in various fields of activity.