CN209835518U - Oil cylinder lifting type lifting system for drilling - Google Patents
Oil cylinder lifting type lifting system for drilling Download PDFInfo
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- CN209835518U CN209835518U CN201822214954.9U CN201822214954U CN209835518U CN 209835518 U CN209835518 U CN 209835518U CN 201822214954 U CN201822214954 U CN 201822214954U CN 209835518 U CN209835518 U CN 209835518U
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- derrick
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- drilling
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Abstract
The utility model discloses a drilling oil cylinder lifting type lifting system, which comprises a derrick arranged on two sides of a drilling platform wellhead, wherein the bottom of the derrick is provided with a base, four slide rails are vertically arranged in the derrick, lifting oil cylinders are respectively arranged in two sides of the derrick, the upper ends of piston rods of the lifting oil cylinders are respectively fixed with a lifting pulley block, the lifting pulley blocks comprise pulley supports arranged on the upper ends of the piston rods, pulley shafts are fixed on the pulley supports, and a first rope guide pulley, a pipe cable guide pulley and a second rope guide pulley are sequentially sleeved on the pulley shafts; and the steel wire rope led out from the dead rope fixing lug plate at each side sequentially bypasses the first rope guide pulley in the lifting pulley block at the side, the traveling pulley in the passive compensation device and the second rope guide pulley and then is fixedly connected with the finger weight sensor at the side. According to the oil cylinder lifting type lifting system, the risk that the moving part is collided and smashed downwards can be avoided from the structure by determining the stroke of the oil cylinder, and the safety performance of the whole system is improved.
Description
Technical Field
The utility model belongs to the technical field of the drilling equipment, a formula hoist system is lifted to hydro-cylinder for probing is related to.
Background
The drilling lifting system is mainly used for tripping a drilling tool, running a casing pipe, controlling the feeding of a drill bit and the like in the drilling process, and is a very key component in the whole drilling system. The conventional hoisting system mainly comprises a drilling winch, a crown block, a traveling block, a hoisting steel wire rope and a derrick, wherein the drilling winch is arranged on a drilling platform surface, the drilling winch is a movable pulley system which is formed by connecting the crown block and the traveling block by the steel wire rope, the crown block is a fixed pulley block fixed at the top of the derrick, the traveling block is a movable pulley block which reciprocates up and down in the derrick, one end of the steel wire rope is fixed at a dead rope end, and the other end of the steel wire rope is wound on a winch drum. The drilling load is transmitted to the derrick by the crown block, and the derrick has a heavy weight due to the bearing requirement. Therefore, when the conventional lifting system is applied to an ocean drilling ship, the defects that the area of a deck occupied by a winch is large, and the weight and the gravity center of the system are high and the like caused by the fact that the drilling main load is transmitted to the deck surface through a crown block and a derrick are overcome. The double-oil-cylinder lifting structure is adopted to realize drilling operation and tripping operation, equipment such as a winch, a traveling block, a crown block and the like and a complex transmission system which are matched with a traditional drilling machine are eliminated, drilling load is borne by the lifting oil cylinder which is supported on a derrick base, the occupied space is reduced, the weight and the gravity center of the system can be effectively reduced, and the double-oil-cylinder lifting structure plays a remarkable role in improving the stability of the whole ship body.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a formula hoist system is lifted to hydro-cylinder for probing has solved the problem that current probing hoist system occupation space is bulky, weight is heavy.
The utility model adopts the technical scheme that an oil cylinder lifting type lifting system for drilling comprises a derrick which is arranged on two sides of a wellhead of a drilling platform, wherein the bottom of the derrick is provided with a base, four slide rails are vertically arranged in the derrick, a passive compensating device is arranged between the four slide rails, two sides of the passive compensating device are respectively provided with a traveling pulley, lifting oil cylinders are respectively arranged in two sides of the derrick, the upper end of a piston rod of each lifting oil cylinder is fixedly provided with a lifting pulley block and a lifting pulley block, the pulley block comprises a pulley support which is arranged on the upper end of the piston rod, a pulley shaft is fixed on the pulley support, one end of the pulley shaft is close to the rear side of a front vertical face of the derrick, the other end of the pulley shaft is close to the front side of the rear vertical face of the derrick, and a first rope; four fixed lugs of dead line are set on the base, two fixed lugs of dead line are set on the front vertical surface of the headframe, the other two fixed lugs of dead line are set on the back vertical surface of the headframe; the dead rope fixing ear plates positioned on the rear vertical surface of the derrick are connected with a finger weight sensor through pin shafts;
and the steel wire rope led out from the dead rope fixing lug plate at each side sequentially bypasses the first rope guide pulley in the lifting pulley block at the side, the traveling pulley in the passive compensation device and the second rope guide pulley and then is fixedly connected with the finger weight sensor at the side.
The utility model is also characterized in that,
the passive compensation device is connected with a top drive through an ear plate pin shaft, and the passive compensation device and the top drive can move up and down along the slide rail.
The lower part of each sliding rail is provided with a turnover supporting device which comprises an ear plate welded on the sliding rail, and the ear plate is movably connected with a movable plate through a fixed pin shaft.
At least two fixed pin shafts are arranged; pin holes are formed in the corresponding positions of the lug plate and the movable plate; the pinhole is provided with three, and is right triangle-shaped and arranges.
The four slide rails are arranged in a quadrilateral shape by taking the wellhead as the center and are respectively fixed on the base.
The movable pulley is fixed on the passive compensation device in an inverted mode through a bolt.
The utility model has the advantages that:
compared with a conventional lifting system, the oil cylinder lifting type lifting system is simple in structure, and complex transmission systems and equipment such as a drilling winch, a traveling block and a crown block which are matched with a traditional drilling machine are eliminated; no well drilling winch is arranged, so that the floor space of the deck surface is reduced; the drilling load is born by a lifting oil cylinder supported on a derrick base, the derrick mainly plays a role in guiding the lifting oil cylinder and a traveling part (comprising a passive compensation device and a top drive) to move up and down, and the self weight of the derrick is greatly reduced, so that the weight and the gravity center of the whole system are effectively reduced. The control of the occupied space and the gravity center of the weight is particularly important for the marine ship body, and the control has a remarkable effect on improving the stability of the whole ship body. Meanwhile, the oil cylinder lifting type lifting system can avoid the risks of upper collision and lower smashing of the moving part from the structure by determining the stroke of the oil cylinder, and improves the safety performance of the whole system.
Drawings
Fig. 1 is a front view of a lifting system for a drilling cylinder according to the present invention;
FIG. 2 is a B-B cross sectional view of the lifting system of the oil cylinder for drilling according to the present invention;
fig. 3 is a schematic side view of a lifting system for a drilling cylinder according to the present invention;
fig. 4 is the utility model relates to a well upset strutting arrangement's of oil cylinder formula of lifting lift system for probing structure schematic diagram.
In the figure, 1, a lifting pulley block, 1-1, a first rope guide pulley, 1-2, a pipe cable guide pulley, 1-3, a second rope guide pulley, 1-4, a pulley support, 1-5, a pulley shaft, 2, a passive compensation device, 2-1, a traveling pulley, 3, a top drive, 4, a steel wire rope, 5, a lifting oil cylinder, 6, a turnover support device, 6-1, an ear plate, 6-2, a movable plate, 6-3, a fixed pin shaft, 7, a weight sensor, 8, a dead rope fixed ear plate, 9, a sliding rail, 10, a derrick and 11, a base.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a formula hoist system is lifted to hydro-cylinder for probing, as shown in fig. 1 and fig. 2, include the derrick 10 of installing in rig floor face well head both sides, derrick 10 bottom is provided with base 11, is provided with four slide rails 9 vertically in the derrick 10, and four slide rails 9 are the quadrangle with the well head as the center and arrange and fix respectively on base 11, installs passive compensation arrangement 2 between four slide rails 9, and passive compensation arrangement 2 is connected with top through the otic placode round pin axle and is driven 3, and passive compensation arrangement 2 and top are driven 3 and can move about from top to bottom along slide rail 9;
the two sides of a derrick 10 are respectively provided with a lifting oil cylinder 5, the lifting oil cylinders 5 are fixed on a base 11, the upper end of a piston rod of each lifting oil cylinder 5 is fixed with a lifting pulley block 1, as shown in fig. 3, the lifting pulley block 1 comprises pulley supports 1-4 arranged at the upper ends of the piston rods, the pulley supports 1-4 are positioned between a guide rail 9 of a front vertical surface and a guide rail 9 of a rear vertical surface of the derrick 10, pulley shafts 1-5 are fixed on the pulley supports 1-4, one ends of the pulley shafts 1-5 are close to the rear side of the front vertical surface of the derrick 10, the other ends of the pulley shafts 1-5 are close to the front side of the rear vertical surface of the derrick 10, and a first rope guide pulley 1-1, a pipe cable guide pulley 1-2 and a second rope guide pulley 1-; the first rope guide pulley 1-1, the pipe cable guide pulley 1-2 and the second rope guide pulley 1-3 are distributed in a front-back manner;
the pipe cable guide pulley 1-2 is connected with the passive compensation device 2 through a plurality of electro-hydraulic pipe cables;
the pipe cable guide pulley 1-2 is connected with the top drive 3 through a plurality of electrohydraulic pipe cables;
two sides of the passive compensation device 2 are respectively provided with a traveling pulley 2-1, and the traveling pulleys 2-1 are inversely fixed on the passive compensation device 2 through bolts;
four fixed lugs 8 of dead lines are arranged on the base 11, wherein two fixed lugs 8 of dead lines are positioned on the front vertical surface of the derrick 10 and are respectively close to the two lifting oil cylinders 5; two fixed lug plates 8 of the dead rope, the other two fixed lug plates 8 of the dead rope are positioned on the rear vertical surface of the derrick 10 and are respectively close to the two lifting oil cylinders 5; the dead rope fixing ear plates 8 positioned on the rear vertical surface of the derrick 10 are connected with a finger weight sensor 7 through pin shafts;
the steel wire rope 4 led out from the dead rope fixing lug plate 8 at each side sequentially bypasses a first rope guide pulley 1-1 in the lifting pulley block 1 at the side, a moving pulley 2-1 in the passive compensation device 2 and a second rope guide pulley 1-3 and then is connected and fixed with the finger weight sensor 7 at the side, and the lifting oil cylinder 5 lifts or lowers the moving part (comprising the passive compensation device 2 and the top drive 3) through the lifting pulley block 1 at the top end of the piston rod by lifting or lowering the steel wire rope wound on the lifting oil cylinder, so that the drilling tool is lifted and lowered;
the lower part of each slide rail 9 is provided with a turnover support device 6, as shown in fig. 4, the turnover support device 6 comprises an ear plate 6-1 welded on the slide rail 9, and the ear plate 6-1 is movably connected with a movable plate 6-2 through a fixed pin 6-3; at least two fixed pin shafts 6-3 are arranged; pin holes are arranged at the corresponding positions of the ear plate 6-1 and the movable plate 6-2; three pin holes are arranged and arranged in a right triangle;
the utility model relates to a formula hoist system is lifted to hydro-cylinder for probing, its working process is:
after the derrick 10 is assembled, the lifting oil cylinder 5 lifts or lowers the moving part, including the passive compensation device 2 and the top drive 3, through the lifting pulley block 1 on the top of the lifting or lowering piston rod and the steel wire rope 4 wound on the lifting pulley block, thereby realizing the lifting and lowering of the drilling tool.
The lifting system is characterized in that a piston rod of a lifting oil cylinder 5 is completely ejected out, and a passive compensation device 2 and a top drive 3 are lifted to the highest position to serve as the upper limit of the lifting system; the piston rod of the lifting oil cylinder 5 is completely retracted and is lowered to the lowest position to serve as the lower limit of the lifting system; only when the upper limit position and the lower limit position are close to, the speed reduction buffer is arranged through software, and the risk of collision and smashing of the moving part is avoided from the structure.
Each slide rail 9 in the lifting system is provided with a turnover support device 6, when the lifting system is fixed by two pin holes, the movable plate 6-2 is opened to form a triangular support frame with the base 11, and a movable part (comprising the passive compensation device 2 and the top drive 3) can be supported and is in a turnover support state; when the other two pin holes are used for fixing, the movable plate 6-2 is retracted and is in a rotary state;
the overturning supporting device 6 can support the weight of the moving part, and when the overturning supporting device 6 is overturned out, the weight of the moving part equipment is borne by the overturning supporting device 6, so that the moving equipment is convenient to mount, replace a steel wire rope, maintain an oil cylinder piston and the like; when the passive compensation device 2 is used for drilling, the device can also be used as a protection device for preventing the moving part from smashing down the drilling table surface, and when the overturning support device 6 rotates back, the up-and-down operation of the moving part is not influenced.
Claims (6)
1. The oil cylinder lifting type lifting system for drilling is characterized by comprising a derrick (10) installed on two sides of a drilling platform wellhead, wherein a base (11) is arranged at the bottom of the derrick (10), four sliding rails (9) are vertically arranged in the derrick (10), a passive compensating device (2) is installed between the sliding rails (9), moving pulleys (2-1) are respectively arranged on two sides of the passive compensating device (2), lifting oil cylinders (5) are respectively installed in two sides of the derrick (10), a lifting pulley block (1) is fixed at the upper ends of piston rods of the lifting oil cylinders (5), the lifting pulley block (1) comprises pulley supports (1-4) installed at the upper ends of the piston rods, pulley shafts (1-5) are fixed on the pulley supports (1-4), one ends of the pulley shafts (1-5) are close to the rear side of a front vertical face of the derrick (10), the other end of the pulley shaft (1-5) is close to the front side of the rear vertical surface of the derrick (10), and a first rope guide pulley (1-1), a pipe cable guide pulley (1-2) and a second rope guide pulley (1-3) are sequentially sleeved on the pulley shaft (1-5); four fixed lugs (8) of the dead line are arranged on the base (11), wherein two fixed lugs (8) of the dead line are positioned on the front vertical surface of the derrick (10), and the other two fixed lugs (8) of the dead line are positioned on the rear vertical surface of the derrick (10); dead-line fixed ear plates (8) positioned on the rear vertical surface of the derrick (10) are connected with a finger weight sensor (7) through pin shafts;
and a steel wire rope (4) led out from the dead rope fixing lug plate (8) at each side sequentially bypasses a first rope guide pulley (1-1) in the lifting pulley block (1) at the side, a traveling pulley (2-1) in the passive compensation device (2) and a second rope guide pulley (1-3) and then is connected and fixed with a finger weight sensor (7) at the side.
2. The oil cylinder lifting type lifting system for drilling according to claim 1, wherein the passive compensating device (2) is connected with the top drive (3) through an ear plate pin shaft, and the passive compensating device (2) and the top drive (3) can move up and down along the slide rail (9).
3. The oil cylinder lifting type lifting system for drilling according to claim 1, wherein a turnover supporting device (6) is arranged at the lower part of each sliding rail (9), the turnover supporting device (6) comprises an ear plate (6-1) welded on the sliding rail (9), and the ear plate (6-1) is movably connected with a movable plate (6-2) through a fixed pin shaft (6-3).
4. A cylinder lifting system for drilling according to claim 3, characterized in that there are at least two of said fixed pins (6-3); pin holes are formed in the corresponding positions of the lug plate (6-1) and the movable plate (6-2); the pin holes are three and arranged in a right triangle.
5. A cylinder lifting system for drilling according to claim 1, characterized in that four said slide rails (9) are arranged in a quadrilateral configuration centered on the well head and fixed to said base (11) respectively.
6. A cylinder lifting system for drilling according to claim 1, characterized in that the travelling block (2-1) is fixed upside down by means of bolts to the passive compensating device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214954.9U CN209835518U (en) | 2018-12-27 | 2018-12-27 | Oil cylinder lifting type lifting system for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214954.9U CN209835518U (en) | 2018-12-27 | 2018-12-27 | Oil cylinder lifting type lifting system for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209835518U true CN209835518U (en) | 2019-12-24 |
Family
ID=68900577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822214954.9U Active CN209835518U (en) | 2018-12-27 | 2018-12-27 | Oil cylinder lifting type lifting system for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209835518U (en) |
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2018
- 2018-12-27 CN CN201822214954.9U patent/CN209835518U/en active Active
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