RU2387785C1 - Configuration of mobile drilling unit mbu 180 - Google Patents

Abstract

FIELD: oil and gas production.

SUBSTANCE: configuration comprises design functional elements: a cable hoist, a hoist brake, an auxiliary hydromatic brake, an emergency hydroelectric drive, a hoisting tackle mounted on a base of self-propelled wheeled tote pivotally connected to an A-frame folding tower with a crown block. A configuration is supplied with a sloping ramp whereon there are mounted the tote, tower and wellhead platform provided with a barrier railing. The tower consists of two interpenetrations. Each structure of the tower consists of two sections, upper and lower, and is meshed. Between the upper sections of the tower, there is a stabbing board of a derrick man which is also provided with is executed with the barrier railing.

EFFECT: higher performance efficiency and enhancement of the unit.

2 cl, 2 tbl, 4 dwg

Description

The invention relates to drilling equipment, namely to mobile drilling rigs with high cross-country ability, designed for deep drilling, maintenance and repair of wells, as well as drilling of sidetracks.

The need for mobile mobile drilling rigs, used both for repair purposes and for drilling sidetracks, is one of the most important trends in the development of drilling equipment. Currently, this need for Russia is met to a greater extent by import supplies. The domestic industry produces mobile units with a carrying capacity of up to 125 tons. The demand for installations with a carrying capacity of 160, 180 and 200 tons is almost not being met. For this purpose, the layout of the mobile drilling rig MBU 180 was created.

A mobile drilling rig is an extremely complex device in its structural basis, therefore, when creating it, it is impossible to do without such a design stage as the layout. In the process of layout in relation to a mobile drilling rig, the relative location of structural elements, i.e. individual parts, such as transport base, mast, drilling base, etc., whose overall dimensions at the first stage of design are performed as a first approximation, in order to create an object with improved parameters and technical characteristics.

When developing a layout solution, for example, “Aircraft with a simplified layout”, patent No. 2301762, patent holder Nigmatullin N.F. (RU), the purpose of which is to simplify the layout and maneuver control system, created an object with increased horizontal flight speed and flight altitude.

In the technical solution of the "Aerodynamic layout of the model plane", patent No. 2123963, patent holder S. Sitnikov etc., the problem of increasing the lifting force has been solved, and the handling characteristics and flight safety have been improved.

In "Mobile drilling rig", patent No. 2190076, patent holder of the "Federal Unitary Enterprise" Production Association "Barricades", the task of reducing the time and complexity of mounting and dismantling the rig and increasing the reliability of the structure during operation is solved. The main elements of the layout of a mobile drilling rig are a multi-axle chassis, a drilling rig, a device for lifting the rig into a vertical working position, a cantilever platform, and a tower base with supports.

Analogs for the development of the claimed layout were selected installations of well-known manufacturers of CJSC Izhdril Izhevsk: MBU 170/3000; MK "Uralmash" BU3200 / 200; VZBT LLC, BU3200 / 200, the technical characteristics of which are given in Table 1.

For the prototype of the claimed technical solution to the configuration, the invention is taken 181838565, the arrangement of which includes a wheeled transport base, on the basis of which an A-shaped folding mast with crown frame is installed, a means of transferring the mast from the transport position to the working, fixation unit working position, a working platform with a rotor, a winch, a driller control panel. The disadvantage of the prototype is the limited and inefficient use of the installation due to low power and low technical characteristics.

The objective of the claimed invention is to expand the functionality of the rig and increase the efficiency of the work.

The technical problem is solved due to the well-known layout of a mobile drilling rig containing structurally functional elements: a winch and others installed on the basis of a self-propelled wheeled transport base, which is pivotally connected to an A-shaped folding mast with a crown block, as well as a lifting block and a drilling base, according to the invention, the layout is equipped with a ramp on which the transport base is installed, while the length of the ramp exceeds the length of the transport base in the front part, made with a bevel down and in the rear A mast consisting of two telescopic structures located symmetrically relative to each other and connected to each other in the upper part is installed on the part of the ramp outside the base of the transport base, in addition, each mast structure consists of two sections, the upper and lower, and is divided into cells while the drilling base is made with a barrier fence and mounted on the ramp between the lower sections of the mast, with a slight exit beyond it, and between the upper sections of the mast there is a balcony at the top a new worker, which is also made with a barrier fence and a slight exit beyond the mast overhanging the drill base, and the layout is additionally equipped with receiving bridges and a mobile unit for the operator and the drilling crew.

The invention is illustrated by drawings.

Figure 1 shows the layout of a mobile drilling rig MBU 180.

Figure 2 shows the phased lifting of the mast.

The layout of the mobile drilling rig MBU 180 is made in a modular design and includes a self-propelled wheeled transport base with a base 1 (Fig. 1), structural and functional elements 2, including a winch with a mechanical drive from a twin-engine power unit, a disc brake with a hydraulic winch remote control and pneumatic "parking brake", auxiliary hydrodynamic brake, emergency electro-hydraulic drive with a capacity of 50-75 kW, lifting block 3, etc., installed on the base of the track from the transport base, as well as the mast of the A-shaped form 4, which is made of a telescopic structure with support in the working position on the ramp 5, with the possibility of installing a top drive. In this case, the mast consists of two telescopic structures located symmetrically relative to each other and interconnected in the upper part. Each mast structure consists of two sections, upper A and lower B, and is divided into cells B. The upper mast sections are advanced from the lower using hydraulic cylinders mounted on one of the mast structures. The mast is made in the form of a multifaceted structure from a square section profile. It is very important that in determining the search for a constructive solution, the proportional ratios of the transport base and mast were not violated. Taking into account the capacity of the installation, a multi-axle transport base was chosen and the design and dimensions of the mast, the height of which is 43.5 meters, were calculated. Thanks to the developed mast design and the use of a powerful transport base, the drilling rig functionality has expanded.

The ramp 5, on which the transport base is installed, the mast and the drilling base 6 is made with a length exceeding the length of the transport base at the front, which has a downward slope for ease of entry of the transport base.

The drilling base 6 is made with a barrier fence 7 and consists of two blocks with integrated candlesticks. The drilling base is installed on the ramp between the lower sections of the B mast, with a slight exit beyond it. Reception bridges 8 have a special transport base.

Between the upper sections A of the mast there is a balcony of the riding worker 9 with a barrier fence and a slight exit beyond the mast with an overhang over the drilling base. The balcony of the riding worker is removable and transported together with the drilling base. Near the drilling base, a mobile unit of the operator and the drilling crew 10 are installed.

Modules are adapted for transportation by tractors. In addition, the modules are divided into parts for transportation by special tracked vehicles.

When arranging the MBU 180 mobile drilling rig, safety was taken into account, for which the design provides for the installation of the following structural elements (not shown):

1. Capacity limiter;

2. Limiter lifting hoist block;

3. Torque limiter on the rotor;

4. The device for emergency evacuation of a riding worker;

5. Emergency skliz to evacuate the brigade from the drilling base;

6. Explosion-proof electrical equipment;

7. Radio communication between members of the brigade;

8. A complex of control and registration of drilling parameters with a black box;

9. Sensors for measuring the tension forces of wind and power guy wires.

To ensure comfortable working conditions and create maximum amenities for workers (not shown), the design provides:

1. Frame and tent shelter winch unit;

2. Frame and tent shelter of the working space on the drilling base;

3. Frame and tent shelter of the rotor area;

4. Shelter of the balcony of the horse around the perimeter;

5. Driller's cabin;

6. Cabin for heating the drilling crew;

7. The elevator for lifting the riding worker.

To improve the convenience of service developed:

1. Centralized lubrication system for bearings of deck equipment;

2. Automatic lubrication of the bearings of the crown block pulleys.

The operation of the installation consists in the operation of the rotor and in the operation of the winch (not considered in the present description).

Preparing the installation for work.

Before starting installation of the installation on the well, the site is leveled and the ramp is mounted. Then feed the installation on the ramp in reverse to a certain place. Installation is stopped, anti-recoil shoes are installed. Next, the mast is lifted in three stages using jacks. At the first stage, lifting is carried out by two jacks fixed on the ramp of the mast structure located on top (figure 2). At the second stage - lifting the entire mast into position with the same jacks (Fig.3). In the third stage - the extension of the upper sections of the mast with two hydraulic cylinders located outside the mast of figure 4. Then install the drilling base, the mobile unit of the operator and the drilling crew, fasten the balcony of the riding worker (figure 1).

Of course, it is impossible to solve all the tasks facing developers at the build stage. The layout provides a strategic direction in the design of a mobile drilling rig. To expand the functionality of the rig, a multiaxial transport base was used, the mast size was increased, etc., as a result, a technical result was obtained in the form of improved characteristics shown in Table 2, in comparison with analogues.

Analyzing the data of Table 2, we highlight the advantages of the claimed layout - these are: high engine power; high hook block lifting speed; the highest height to the rotor beams; the greatest length of the lifted candle; high load on the hook; the greatest depth of drilling; The shortest installation time for the rig and the smallest weight of the lifting unit.

The claimed layout of a mobile drilling rig significantly increases the efficiency of service due to the modular design, thereby reducing installation and installation time. The design of the installation is rational, provides convenience, safety and efficiency of work during operation. The functionality of the installation allows its use not only for deep drilling, maintenance and repair of oil and gas wells, but also for drilling sidetracks. The first plant samples are in production.

The use of simple assemblies and welded structures in the installation allows you to effectively reproduce the claimed invention when organizing the production of medium series (from 15 units per year) and introduce it into economic circulation without expensive equipment.

Claims (2)

1. An arrangement of a mobile drilling rig containing structurally functional elements: a winch, a winch brake, an auxiliary hydrodynamic brake, an emergency electro-hydraulic drive mounted on the basis of a self-propelled wheeled transport base, which is pivotally connected to an A-shaped folding mast with a crown block, as well as a lifting block and a drilling base, characterized in that the layout is provided with a ramp made with a bevel to the bottom, on which the transport base is installed, while the ramp length is greater than the length of the transport base in the front part, and in the rear part of the ramp outside the base of the transport base, a mast is installed, consisting of two telescopic structures located symmetrically relative to each other and connected to each other in the upper part, in addition, each mast structure consists of two sections, upper and lower, and made with division into cells, while the drilling base is made with a barrier fence and mounted on the ramp between the lower sections of the mast, with a slight exit beyond its limits, and between from the upper section of the mast mounted balcony derrickman who also formed the barrier guardrail and slight overrun of the mast with the overhang above the drill base. 2. The layout of the mobile drilling rig according to claim 1, characterized in that it is further provided with receiving bridges and a mobile unit of the operator and the drilling crew.

Images