RU2533411C1 - Stationary auto-mounted drill rig - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: drill rig consists of a base with outriggers, a mast-barrel, a two-stage carriage, a pulley system with a rope and winches, tension cables, supports, ceilings with crown blocks. The mast-barrel consists of sections. The mast sections are made of tubes. Each section comprises main longitudinal reinforcement ribs, additional longitudinal reinforcement ribs, the transverse reinforcement ribs. Along the entire height of the mast there is an opening for lifting the drill pipe string. Inside the mast using the pulley system or hydraulic cylinders a two-stage carriage is moved. Each section of the mast has four windows of locking for locking the wedges of the two-stage carriage. The carriage consists of upper and lower stages, which are interconnected by two or more hydraulic cylinders and safety lanyards. On the upper stage there is an opening for the pulley system. On the lower stage there is a link for hanging the carriage on the hook block. On the upper and lower stages of carriage there are rollers and limiters of rotation with the rollers. The upper stage at the time of mounting of the mast is provided with a console with support on the rollers, a mobile platform with a barrel, hydraulic cylinder of the mobile platform. On the lower stage there is an upper drive with grip for lifting drill pipe strings, oil station, remote control with the operator workplaces, opening for access into the carriage for service personnel.

EFFECT: increased load capacity of the rig derrick, reduction of time of mounting and dismounting of the drill rig.

11 dwg

Description

The invention relates to the mining industry and can be used in the construction of drilling facilities for drilling deep wells for oil and gas.

The drilling rig is designed for drilling deep and ultra-deep wells for gas and oil, and can also be used for drilling deep shaft shafts of large diameter.

The known layout of the mobile drilling rig MBU 180 in the description of the invention No. 2387785, from 03.09.2008, publ. 04/27/2010, MPK Е21В 7/02, which contains structurally functional elements: a winch, a winch brake, an auxiliary hydrodynamic brake, an emergency electro-hydraulic drive, a lifting unit mounted on the basis of a self-propelled wheeled transport base, which is pivotally connected to an A-shaped folding mast with crown block. The layout is equipped with a ramp on which the transport base, mast and drilling base, made with a barrier fence, are installed. The mast consists of two telescopic structures. Each mast design consists of two sections, the upper and lower, and is made with division into cells. Between the upper sections of the mast there is a balcony for the riding worker, which is also made with a barrier fence. Provides increased efficiency of work and expansion of the functionality of the rig.

Disadvantages: low load capacity, time-consuming installation and dismantling of the drilling rig.

Known drilling rig No. 2337227 from 09.03.2007, publ. 10.27.2008, MPK Е21В 7/02, Е21В 3/00, Е21В 15/00, containing a base pivotally mounted on it and made in the form of a rectangular frame, a mast with guides, a carriage movably mounted by means of rollers with a rotator and a hydraulic motor located on it, a carriage moving mechanism, the carriage being provided with brackets in which rollers are mounted on the axles located on the outer sides of the shelves of each rail, as well as means for adjusting the axial distance between the rollers, made in the form of a sleeve eccentrically located relative to each other outer and inner surfaces, and the cover, fixing the position of the sleeve.

Disadvantages: low carrying capacity.

Known oil rig for drilling oil and gas wells UZTM BU-6500/400 DT, Drilling equipment: training manual / V.G. Kretz, L.A. Saruev, V.G. Lukyanov, A.V. Shadrina, V.A. Shmurygin, A.L. Saruev; Tomsk Polytechnic University. - Tomsk: Publishing House of Tomsk Polytechnic University, 2011. - 121 p., Containing a mast of a truss lattice of a tower or A-type, consisting of sections with a loading capacity of 400 ... 500 tons, a base with outriggers, a chain hoist with winches, a drill column, extensions, stops, overlapping with crown blocks.

Disadvantages: low load capacity, time-consuming installation and dismantling of the drilling rig.

The closest analogue is a drilling rig for drilling oil and gas wells UZTM BU-8000/500 ER Drilling equipment: a training manual / V.G. Kretz, L.A. Saruev, V.G. Lukyanov, A.V. Shadrina, V.A. Shmurygin, A.L. Saruev; Tomsk Polytechnic University. - Tomsk: Publishing House of Tomsk Polytechnic University, 2011. - 121 p., Containing a mast of a shaped lattice structure of a tower or A-type, consisting of sections with a loading capacity of 400 ... 500 tons, a base with outriggers, a drill string, a chain hoist with winches, extensions, stops, overlapping with crown blocks.

Disadvantages: low load capacity, time-consuming installation and dismantling of the drilling rig.

Effect: increase load capacity, reducing the time of installation and dismantling of the drilling rig.

The technical result is achieved due to the fact that the stationary drilling rig is mounted, containing a base with outriggers, a mast consisting of sections, a carriage, a drill string, a chain hoist with a cable and winches, extensions, stops, overlaps with crown blocks, characterized in that the mast sections are made from pipes in the form of a mast-barrel with an opening over the entire height for lifting a drill plug, in which a two-stage carriage containing upper and lower steps connected with each other with a chain hoist or hydraulic cylinders trolley cables, two or more hydraulic cylinders with pockets in which wedges move to lock the two-stage carriage in the mast-trunk, rollers for free passage of the two-stage carriage on the mast-barrel and rotation limiters with rollers, while the upper stage with an opening made in it for the passage of the tackle during the installation of the mast-barrel, is equipped with a console with support on rollers, a mobile platform with a barrel fixed to it, a hydraulic cylinder for the mobile platform, and the lower stage contains the upper a drive with a grip for lifting candles, an earring for hanging a two-stage carriage on a hook block, an oil station, a control panel with operator’s workstations, an opening for accessing a two-stage carriage for maintenance personnel, each of the mast-mast sections containing the main longitudinal stiffeners, made in the form boxes along the edges of the opening, and additional longitudinal stiffeners made along the entire diameter of the section, and at the ends - transverse stiffeners for connecting the sections to each other, four windows are locked ia, to each of which a reinforced channel is welded outside the entire length of the section.

In the claimed invention, the increase in labor productivity is achieved by reducing the time of installation and dismantling, the possibility of self-assembly of the drilling rig, increasing the length of the candle.

Installation of the mast-trunk is carried out using a truck crane while its lifting height allows, and then the sections of the barrel are self-mounted using the console, which is mounted on the upper stage of the two-stage carriage for the time of installation of the mast-barrel. On the console there is a mobile platform with a barrel fixed to it. Under the console is the console support with rollers, which does not allow the skew of the upper stage of the two-stage carriage. The next section is put on the barrel and with the help of the hydraulic cylinders of the two-stage carriage the console rises 10 cm above the mast-trunk. Then the mobile platform with the section installed on it with the help of the hydraulic cylinder of the mobile platform is pushed onto the mast-barrel until it is aligned and the console is lowered. The lower barrel cone enters the mast barrel and centers the lower section. After securing the lowered section, the console rises 10 cm above the mast-trunk, the mobile platform is moved to its original position and the console, with the help of a two-stage carriage, goes down after the next section. The dismantling of the rig is carried out in the reverse order.

Thanks to the design of the mast-trunk, the installation and dismantling time is reduced several times, and the possibility of building the mast-trunk to 60 m or more is achieved.

An increase in the lifting capacity of the rig to 1000 tons or more occurs due to the reinforcement of the mast-trunk with the main longitudinal stiffeners made in the form of a box along the edges of the aperture, and additional longitudinal stiffeners made along the entire diameter of the section, and at the ends with transverse stiffeners, windows locks, to each of which a reinforced channel is welded to the outside along the entire length of the section, which allows creating an additional load during drilling.

A comparative analysis of the proposed solution with the prototype allows us to conclude that the claimed invention meets the conditions of patentability: it is new, has an inventive step and is industrially applicable.

Self-mounted stationary drilling rig is illustrated by the following drawings:

Figure 1 shows the drilling rig stationary self-mounted front view.

Figure 2 shows the drilling rig stationary self-mounted top view.

Figure 3 shows a section of the mast-barrel top view.

Figure 4 shows a section of the mast-barrel side view.

Figure 5 shows a two-stage carriage front view.

Figure 6 shows a two-stage carriage top view 6.

Figure 7 shows the rise of the drill string using a chain hoist and carriage hydraulic cylinders.

On Fig - self-assembly of the mast-trunk of the drilling rig side view.

In Fig.9 - self-assembly of the mast-shaft of the drilling rig, top view.

Figure 10 shows a rack drive for moving a single-stage carriage.

11 shows a rack drive.

The drilling rig consists of a base 1 with outriggers 4, a mast-trunk 2, a two-stage carriage 3, a chain hoist with a cable 32 and winches, braces 7, stops 8, overlapping with crown blocks 6. Base 1 is a metal structure with an opening in the center, consisting of of the main and connecting blocks interconnected by means of grooves. When mounting the base 1, the outriggers 4 are installed, which are inserted into the special pockets made in the base 1. At the corners of the base 1 there are tensioning devices 9 for tensioning the stretch marks 7. The base 1 is installed on the concrete platform 5. The sections 13 of the mast-barrel 2 are made of pipes d 2220 and more mm and are equipped with additional longitudinal stiffeners 10, made along the entire diameter of section 13. Along the entire height of the mast-barrel 2 there is an opening 12 for lifting the drill plug. At the ends of section 13, transverse stiffeners 11 are welded with a thickness of 30 mm to connect the sections 13 to each other. Each section 13 in the middle of the length has four locking windows 15 located along the diameter of section 13 at a certain distance to lock the wedges 19 of the two-stage carriage 3. Outside, a reinforced channel 14. is welded to each of the locking windows 15 along the entire length of section 13. along the entire length of the section 13, the main longitudinal stiffeners 16 made in the form of a duct are welded.

A two-stage carriage 3 is moved inside the mast-barrel 2 by means of a chain hoist or hydraulic cylinders 21, designed for self-assembly of the mast-barrel 2 and for creating additional loads on the drill string 22 during drilling, pulling heavy casing pipes and drill strings, and also to maintain the drill string 22 when drilling.

The two-stage carriage 3 consists of the upper 17 and lower 18 steps, which are interconnected by two or more hydraulic cylinders 21 with a stem extension of 6.0 m. The lifting capacity of the hydraulic cylinders 21 can be 400 or more tons. The upper 17 and lower 18 steps are made of pipes 2-3 cm smaller than the diameter of the mast-barrel 2. In the upper 17 and lower 18 steps there are pockets in which the wedges 19 move to lock the two-stage carriage 3 in the mast-barrel 2. When combining wedges 19 with locking windows 15 in the mast-barrel 2, the wedges 19 are automatically extended or retracted depending on the direction of movement of the two-stage carriage 3. When the two-stage carriage 3 moves, synchronous movement of the wedges 19 on the upper 17 and lower 18 steps is excluded. For safety, the upper 17 and lower 18 steps are interconnected by safety ropes (not specified) equal to the length of the extension of the hydraulic cylinder rod. In the upper stage 17 there is an opening 25 for the chain hoist, and in the lower stage 18 there is an earring 30 for hanging the two-stage carriage 3 on the hook block 31. On the upper 17 and lower 18 steps of the two-stage carriage 3 there are rollers 23 for free passage of the two-stage carriage 3 along the mast-trunk 2, as well as turn stops 24 with rollers 23.

The upper stage 17 at the time of installation of the mast-barrel 2 is equipped with a console 35 with a support 37 on the rollers 23, a mobile platform 38 with a barrel 34 fixed to it, a hydraulic cylinder of the mobile platform 39. In the lower stage 18 there is an upper drive 20 with a grip 29 for lifting drill candles , oil station 27, control panel 26 with the driver’s workplaces, and there is also an opening 28 for access to the two-stage carriage 3 of the staff.

On the rotation limiters 24 of the upper stage 17 of the carriage, a cradle with a fenced ladder is attached to enter the lower stage 18 of the carriage and to go to the sectional cradle. In the upper part of each section 13 around the entire perimeter of the mast-barrel 2 cradles are suspended for ease of installation and dismantling and inspection of the fastening of sections 13 and extensions 7.

Between section cradles on each section 13 there is a vertically fenced ladder.

At floor 6 with the crown blocks of the mast-barrel 2 there is a room for temporary personnel and a hatch for inspecting the crown block and for lowering into the mast-barrel 2. With the help of a two-stage carriage 3, personnel can be delivered to any point of the mast-barrel 2.

In a drilling rig for lifting work, you can use not only a chain hoist with a two-stage carriage 3, but also a faster gear rack drive 40 with a one-stage carriage 33 with a lifting capacity of 400 or more tons. The power of the rack drive 40 depends on the number of gear racks 36, which serve as mast stiffeners -tank 2 and the number of hydromotors of the river drive 41. The fastening of the rack drive 40 of each gear rack 36 and the one-stage carriage 33 should be hinged.

Installation of sections 13 of the mast-barrel 2 of the drilling rig is carried out using a lifting mechanism, while the lifting height of this mechanism allows. Next, the sections 13 of the mast-barrel 2 are self-assembled using the console 35, which is mounted on the upper stage 17 of the two-stage carriage 3. The next section 13 is put on the barrel 34 and using the hydraulic cylinders 21 of the two-stage carriage 3, the console 35 rises 10 cm above the mast-barrel 2 Then, the mobile platform 38 with the mounted section 13 with the help of the hydraulic cylinder of the mobile platform 39 is pushed onto the mast-barrel 2 until it is aligned and the console 35 is lowered. The lower cone of the barrel 34 enters the mast-barrel 2 and centers the lower section 13. After securing the lowered section 13, the console 35 rises 10 cm above the mast-barrel 2, the mobile platform 38 is moved to its original position and the console 35 with the two-stage carriage 3 is lowered down after the next section 13.

Under the console 35 there is a support of the console 37 with rollers 23, which does not allow the skew of the upper stage 17 of the two-stage carriage 3. Inside the mast-barrel 2, a two-stage carriage 3 is moved with the help of a chain hoist or hydraulic cylinders 21, which is designed for self-assembly and additional loads on the drill string 22 when drilling, pulling heavy casing and drill strings 22, and also to maintain the drill string 22 during drilling.

An increase in the lifting capacity of the drilling rig to 1000 and more tons occurs due to the reinforcement of the mast-trunk 2 with the main longitudinal stiffeners 16, made in the form of a duct along the edges of the opening 1, and with additional longitudinal stiffeners 10, made along the entire diameter of section 13, and at the ends - transverse stiffeners 11, locking windows 15, to each of which, outside the entire length of the section, a reinforced channel 14 is welded, which creates an additional load during drilling.

The main lifting operations during drilling are carried out by the chain hoist.

The movement of the two-stage carriage 3 using the hydraulic cylinders 21 is carried out during self-assembly and dismantling of the mast-barrel 2, as well as when additional loads are applied to the drill string 22. The movement of the two-stage carriage 3 is as follows. When moving upward, the wedges 19 of the lower stage 18 of the two-stage carriage 3 are locked and the rods of the hydraulic cylinders of the two-stage carriage 3 are extended, raising the upper stage 17 up. When the wedges 19 of the upper stage 17 are combined with the locking windows 15, they automatically extend and lock, retraction of the hydraulic cylinder rods of the two-stage carriage 3 begins, while the wedges 19 of the lower stage 18 rise until they are aligned with the locking windows 15. When the two-stage carriage 3 moves down, everything happens in in the reverse order, the wedges 19 of the upper 17 and lower 18 steps are retracted and the hydraulic drive of the two-stage carriage 3 is turned off.

The drilling technology and the equipment with auxiliary mechanisms and equipment of a stationary self-mounted drilling rig is no different from its well-known counterparts, but due to its design there are much greater opportunities:

doubled labor productivity;

the possibility of mounting the mast-trunk with a height of 60 m or more;

increase of carrying capacity up to 1000 t and more;

drilling depth increases to 10 km or more.

Self-mounted stationary drilling rig

The list of positions.

1. The basis

2. Mast trunk

3. Two-stage carriage

4. Outrigger

5. Concrete site

6. Overlap with crown block

7. Stretching

8. Emphasis

9. Tensioning devices

10. Additional longitudinal stiffeners

11. Cross ribs

12. Aperture

13. Section

14. Channel

15. Lock window

16. The main longitudinal stiffener

17. The upper stage

18. Lower stage

19. Wedge

20. Top drive

21. Hydraulic cylinders

22. Drill string

23. Rollers

24. Turn limiter

25. Aperture for polystyrene

26. Remote control

27. Oil station

28. Entrance to the carriage

29. 3 capture

30. Earring

31. Hook block

32. The tackle cable

33. Carriage

34. Keg

35. Console

36. Toothed rack

37. Console support

38. Mobile platform

39. Hydraulic cylinder of a mobile platform

40. Rack and pinion drive

41. Hydraulic motor rack and pinion drive.

Claims (1)

Self-mounted stationary drilling rig containing a base with outriggers, a mast consisting of sections, a carriage, a drill string, a chain hoist with a cable and winches, extensions, stops, overlaps with crown blocks, characterized in that the mast sections are made of pipes in the form of a mast-trunk with a hole over the entire height for raising the drill plug, a two-stage carriage is moving in the mast with the help of a chain hoist or hydraulic cylinders, containing the upper and lower stages, interconnected by safety cables, two or more hydraulic cylinders having pockets in which wedges move to lock the two-stage carriage in the mast-barrel, rollers for free passage of the two-stage carriage along the mast-barrel and rotation limiters with rollers, while the upper stage with an aperture made in it for the passage of the pulley during the installation of the mast the barrel is equipped with a console with a support on the rollers, a mobile platform with a barrel fixed to it, a hydraulic cylinder for the mobile platform, and the lower stage contains an upper drive with a grip for lifting candles, an earring for lifting sewing a two-stage carriage onto a hook block, an oil station, a control panel with operator’s workstations, an opening for access to a two-stage carriage for maintenance personnel, each of the mast-trunk sections containing the main longitudinal stiffening ribs made in the form of a box along the edges of the aperture, and additional longitudinal ribs stiffnesses made over the entire diameter of the section, and at the ends there are transverse stiffeners for connecting the sections to each other, four locking windows, to each of which is outside the entire length of the section Ivar amplified channel.

Images