Piling and off-ground equipment

XCMG concentrates on the study of pile foundation construction technology, no-excavation pipeline construction technology and special construction equipment, and has carefully developed a series of rotary pile drilling rigs, solid wall trenching equipment, and a series of horizontal directional drilling rigs and pipe jacks. without excavation, which can meet the requirements of various types, specifications and layers of pipeline construction equipment. The equipment has high design efficiency and good safety and stability.

XCMG XR series rotary drilling rig with stable chassis, torque from 80kNm to 800kNm, maximum drilling depth of 150m and maximum drilling diameter of 4.8m can meet various requirements of engineering construction.

Characterized by high construction efficiency, strong structural ability, good grooving quality, high grooving precision, low vibration and noise, XCMG XTC double wheel trench cutter meets the construction requirements of various complex layers such as soil layer and hard rock layer.

**Hydraulic Underground Membrane Wall Grab XG Series**

XG series hydraulic bucket for underground diaphragm wall adopts a new generation of main valve hydraulic control technology, equipped with a mature self-made crawler chassis, double-row rope structure with two winches, a new humanized display interface, and has the function of quick lowering and super-large closing force.

**XMZ Series Multifunctional Drilling Rig**

XCMG XMZ series multi-functional drilling rigs are applicable to micro piles, excavation support and reinforcement, tunnel pouring and drilling, advanced geological prediction, high-pressure rotary jet pouring, pipe rack and other multi-functional structures, and meet the requirements of various layers. and working conditions.

XCMG horizontal directional drilling rigs use the world’s first modular combination technology, the world’s leading intelligent control and power combination technology, and the industry’s leading technology for adapting to complex working conditions, and can ensure the reliability of the design of ultra-large drilling rigs.

XCMG middle series products use PLC control, display screen operation visualization and other advanced control technologies, and XCMG patented technology. The hydraulic system, deceleration parts, electrical control system and other main components from domestic and foreign well-known brands are selected with stable and reliable quality.

XCMG rock entry drilling rig adopts double power head, double drill rod drive, special guide bit and other core technologies, and can perform the functions of efficient rock penetration, precise curve guidance and multi-seam adaptation for small-tonnage drilling. . towers.

**Navigation equipment XCMG Navigator E**

XCMG navigator E guidance equipment, with developed ultra-deep and high-precision wireless guidance system, can realize high-precision wireless guidance, maximum detection depth of 50m, guidance accuracy of 1%, and battery life of 60h.

Drilling rig

A drilling rig or drilling rig is a complex of drilling equipment and structures designed for drilling wells. The composition of the units of the drilling rig, their design is determined by the purpose of the well, the conditions and method of drilling.

Land drilling rig for exploration and development of oil and gas fields generally includes the following equipment:

Derrick,
drawworks,
Top drive system or swivel rotor,
Drill key
Hairpin coil
mud pumps,
containers,
Drilling fluid preparation equipment,
Drilling mud cleaning equipment,
Cementing unit
Blowout equipment
Walkways and storage of drill pipes, pipe crane,
Generator to ensure the operation of equipment electric drives

Application of drilling rigs

Drilling shallow (up to 25 meters) wells of small diameter (76-219 mm) for seismic and engineering surveys.
Drilling wells of medium depth (up to 600 m) — structural and exploratory wells for solid minerals.
Drilling deep (up to 6000 m) exploratory and production wells for oil and gas.
Overhaul and testing of wells for oil and gas.
Drilling wells for water.
Drilling shallow (up to 32 m) wells of large diameter (up to 1.5 m) for the construction of bored piles (pile foundations).
Drilling of blast holes in open mine workings and in mines.
Ultra-deep drilling (up to 15,000 m) of exploration and production wells for oil and gas. (In Russia, the first super-deep well was drilled to a depth of 12,262 meters on the Kola Peninsula).

Organ structure of drilling rigs

Executive bodies (rig, drawworks, SVP, rotor, traveling system, mud pump…)
Power bodies (diesel and electric motors, power pneumatic and hydraulic systems, drives)
Auxiliary bodies (metal structures of the base, shelters, movement mechanisms, receiving bridge, auxiliary winch, hoists, lighting systems, water supply, heating, ventilation, evacuation)
Controls (pneumatic and electric control systems)
Information bodies (drilling parameters control system)

Rig classification

By type of work:

for operational work.
for exploration work.
for technical wells.

According to the drilling method, they are divided into installations:

Drive type:

electric drilling rigs.
electrohydraulic drilling rigs.
diesel-electric drilling rigs.
diesel drilling rigs.

According to the technique of movement:

self-propelled drilling rigs.
mobile drilling rigs.
stationary drilling rigs.

Location options:

ground.
marine.

Derrick

The tower is a key unit of the drilling rig equipment and is designed to perform the following functions:

tripping operations with drill and casing pipes.
maintaining the drill string on the traveling system during drilling with unloading.
placement of a set of drill pipes and drill collars (DC) and thick-walled drill pipes (TBT).
placement of a traveling system and means of mechanization of tripping operations, in particular, ASP, KMSP mechanisms or a platform for a mounted worker, an emergency evacuation device for a mounted worker, a top drive system and auxiliary equipment.

Drilling rigs are classified: by purpose — for well workover units, for mobile (mobile) drilling rigs, for cluster and stationary, for offshore drilling rigs; by design — mast and tower. Mast towers are: A-shaped, U-shaped, 4-support and with an open front edge.

Drill carriage

Drilling carriage — mounted drilling equipment. It is installed on mini excavators, as well as hydraulic excavators with a total weight of 10 tons or more through various connections. The drilling carriage usually consists of a traveling mechanism (most often crawler-driven) with a motor for movement (for self-propelled machines), and an integral hydraulic mechanism for forward movement (traction) and drilling operation (axial and radial movement of the rods). The hinged drilling carriage is used in works on partial strengthening of soils, as well as in drilling with an air hammer or for coring, also for anchor drilling, drilling wells for piles and poles, for the construction of water wells.

SVP and Rotor

The rotor is designed to rotate the drilling tool and support the drill pipe string while drilling the well. In this case, a swivel is used to allow rotation of the drilling tool. SVP combines the functions of a rotor and a swivel.

Drawworks

The drawworks is the main mechanism of the lifting complex of the drilling rig. The drawworks is designed to perform the following operations of the well construction process:

lowering and lifting of drill pipes.
descent of casing pipes.
supply of the tool to the face.
transmission of rotation to the rotor in the absence of an individual drive of the rotor.
giving acceleration to the tool (impact chisel, bailer, etc.).
emergency lifting tool.

Travel system

The tackle (poly-spast) system or equipment of drilling rigs is designed to convert the rotational movement of the winch drum into translational (vertical) movement of the hook to which the drill string is attached, and to reduce the load on the rope branches. Depending on the type of drilling rig and the depth of the well, equipment is used: 3×4, 4×5, 5×6, 6×7.

hook blocks

Drilling hooks (hook blocks) are made in the form of separate hooks or hooks connected to a traveling block (hook blocks). swivel or SVP during drilling.

swivels

The swivel is one of the main components of the drilling fluid supply mechanism, it bears the greatest load during the drilling process, and the trouble-free operation of the entire drilling rig depends on its reliability. The swivel ensures the supply of flushing fluid through the drilling sleeve from the stationary riser of the manifold to the rotating drill string and supports the rotating tool during drilling.

mud pumps

Mud pumps are designed to ensure the process of flushing when drilling a well, injecting drilling mud into the well in order to clean the bottom and shaft from cuttings and bring it to the surface, cool the bit and actuate hydraulic downhole motors. There are the following types of pumps — double-acting two-piston pumps and single-acting three-piston pumps.

Single-acting three-piston pumps most fully meet the requirements of drilling technology, which provide the least degree of output pressure unevenness and the least wear of valves and piston rods in comparison with double-acting two-piston pumps.

Circulation systems

The circulation system (CS) is a set of mechanisms and equipment that is part of the drilling rig and is designed:

for the preparation of drilling fluid of a given density, composition and quality.
for cleaning drilling fluid from cuttings.
storage of drilling fluid.
drilling fluid degassing (if necessary).
chemical treatment of drilling mud.
topping up and supplying drilling fluid to the well.
sludge removal.

The CS complex includes the following equipment for cleaning the drilling fluid — a vibrating screen, a sand separator, a desilter, a centrifuge and a degasser, which, having a different degree of drilling fluid purification, allow preparing cuttings for disposal.

Drilling Equipment XCMG