CN107303941B - Derrick of marine drilling ship and centering installation method thereof - Google Patents
Derrick of marine drilling ship and centering installation method thereof Download PDFInfo
- Publication number
- CN107303941B CN107303941B CN201610251946.4A CN201610251946A CN107303941B CN 107303941 B CN107303941 B CN 107303941B CN 201610251946 A CN201610251946 A CN 201610251946A CN 107303941 B CN107303941 B CN 107303941B
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- derrick
- base
- frame body
- fixedly connected
- installation method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
Abstract
The invention discloses a derrick of an ocean drilling ship and a centering installation method thereof, wherein the centering installation method comprises the following steps: and (3) using a total station to process and manufacture the base, checking to ensure that the deviation of the center of the derrick is within +/-10mm in the X and Y directions, then manufacturing an inclined base plate, and fixedly connecting the frame body, the inclined base plate and the base. The derrick manufactured by the derrick centering installation method comprises a frame body, four bases and a plurality of inclined base plates, wherein the inclined base plates are arranged between the frame body and the bases and are fixedly connected through bolts. The installation precision of the derrick is ensured by using the total station; the inclined base plate is processed and installed at one time, and efficiency and accuracy of centering installation of the derrick are improved. Meanwhile, the derrick is convenient to assemble, disassemble and replace, the construction period and the cost are reduced, and the structural stability of the derrick is improved.
Description
Technical Field
The invention relates to a derrick, in particular to a derrick of an ocean drilling ship and a centering installation method thereof.
Background
The derrick is an indispensable device in the oil and gas exploitation process of an ocean drilling ship, is used for placing a crown block, hanging a travelling crane device, taking a drilling tool down, discharging a stand and a sleeve, processing the operations of underground accidents, well logging, oil testing and production testing and the like, and is a main bearing structural member of a drilling machine.
The ocean derrick is mostly a bottleneck type structure tower-shaped derrick, the derrick body is a detachable and bolt-connected closed steel structure with a square cross section, and the weight of the derrick body is hundreds of tons. The well frame body is formed by connecting four upright posts and a plurality of transverse diagonal web members into a whole through high-strength bolts. The novel marine floating platform is high in bearing capacity, good in overall stability and suitable for working under complex marine working conditions. The cost and the risk of the marine drilling package are considered, the installation precision of the derrick is guaranteed, the continuous operation of the internal equipment of the derrick is guaranteed, and a large amount of operation cost can be saved.
At present, a derrick is generally measured by a level gauge during centering installation, a derrick can be installed by a marine drilling ship on the shore for measuring the inclination angle relative to the horizontal position, so that the deviation degree of the derrick center and the ship center cannot be accurately obtained, and the centering installation precision of the derrick is limited. Meanwhile, the leveling method mainly adopts a gasket group method, and four hydraulic jacks are arranged on the bottom feet of the derrick to align the derrick after installation. And the thickness range of the gasket group comprises 3mm, 4mm, 6mm, 10mm and 14 mm. When the derrick is connected with the ship, the centering is adjusted by the gasket, so that the deviation between the derrick center and the ship center is within +/-10mm, and the precision requirement of the drilling equipment during operation is met. However, this method has several disadvantages: firstly, the thinnest gasket can only be 3mm, the size of the gasket is about 800mm x 400mm, and the too thin gasket is not easy to mount and is easy to bend and damage; secondly, the adjustment precision is limited, and finally, the deviation between the derrick center and the ship center within +/-10mm is difficult to meet; thirdly, the derrick is an ultra-large structural member, the size of the derrick is usually more than 10m by 10m, four bottom angles of the derrick are difficult to ensure in a horizontal plane, two feet or three feet touch the ground usually, and wedge-shaped gaps exist between the other feet and the drilling platform surface; fourthly, the installation, adjustment and centering time is longer.
Disclosure of Invention
The invention aims to overcome the defects of low installation precision, long installation time and the like of a derrick of an ocean drilling ship in the prior art, and provides the derrick of the ocean drilling ship and a centering installation method thereof.
The invention solves the technical problems through the following technical scheme:
a derrick centering installation method of an ocean drilling ship comprises the following steps:
s1, processing and manufacturing a base by using a total station instrument and taking a rotary table of the marine drilling ship as a base surface, and connecting the base to the marine drilling ship;
s2, placing a jack inside the base, wherein the movable end of the jack penetrates through the base;
s3, moving the frame body above the base through a floating crane, and adjusting the frame body through the jack until the frame body can be fixedly connected to the base;
s4, checking the centering condition of the crown block borehole center line and the turntable borehole center line by using the total station, and adjusting by the jack, so that the center deviation of the crown block borehole center line and the turntable borehole center line is within +/-10mm in the X and Y directions, the derrick center deviation of the marine drilling ship is ensured to be within +/-10mm in the X and Y directions, and the distances between different points between the frame body and the base are respectively recorded;
s5, checking for multiple times at different times by using the total station, and respectively recording the distances between different points according to different gaps between the frame body and the base;
s6, processing and manufacturing an inclined base plate according to the measured data;
s7, through the adjustment of the jack, the inclined base plate is placed between the frame body and the base, the frame body, the inclined base plate and the base are fixedly connected, and the centering installation of the derrick is completed.
In the scheme, the total station is used for determining the machining precision of the base, the height difference of the base is guaranteed to be within +/-1mm, and the planeness is smaller than 0.1mm, so that preparation work is made for derrick installation, and the centering installation precision of the derrick is improved beneficially.
Meanwhile, the total station is used for ensuring that the center deviation between the marine drilling ship and the derrick is within +/-10mm, and the installation precision of the derrick is ensured.
In addition, the interval data between the frame body and the base is measured, the inclined base plate is processed and installed at one time, and the centering installation efficiency of the derrick is improved. Meanwhile, the precision of the inclined base plate can be controlled within +/-0.1mm, and the installation precision of the derrick is guaranteed.
Preferably, in step S3, a steel wire rope is provided on a hook of the floating crane, a shackle is provided at an end of the steel wire rope, the shackle is connected to the lifting flap of the frame body, and then the floating crane lifts the frame body.
In the scheme, the base is integrally hoisted on the frame body, so that the hoisting times of the floating crane are reduced, and the construction period and the construction cost are saved. Meanwhile, the safety of the hoisting and moving process is guaranteed.
Preferably, in step S4, a temporary steel pad is disposed between the frame and the base.
In the scheme, the stability of the whole derrick is ensured, the accuracy of subsequent measurement data is also ensured, and the installation precision of the derrick is ensured.
Preferably, in step S3, the frame body is fixedly connected to the base by bolts;
in the step S7, the frame body, the inclined base plate and the base are all fixedly connected by bolts.
In the scheme, the structure is adopted and the derrick is connected into a whole through the bolts, so that the bearing capacity and the overall stability of the derrick are improved.
Preferably, in step S1, the base is fixedly connected to the marine drilling vessel by welding.
In the scheme, the structure is adopted, and the stability of the derrick is enhanced.
The derrick manufactured by the derrick centering installation method comprises a frame body, four bases and a plurality of inclined base plates, wherein the bottom of the frame body is provided with four stand columns and four first panels, the first panels are fixedly connected below the stand columns, the first panels are provided with a plurality of first through holes, the inclined base plates are arranged between the frame body and the bases, the bases are provided with second panels and eight toggle plates, the toggle plates are fixedly connected to the bottom surfaces of the second panels, the second panels are provided with a plurality of second through holes, the inclined base plates are provided with a plurality of third through holes, and the third through holes, the first through holes and the second through holes are fixedly connected through bolts.
In this scheme, adopt above-mentioned structural style, derrick simple structure just fastens the jail, and bearing capacity is big and stability is better.
Meanwhile, the assembly, disassembly and replacement are convenient, and the construction period and the cost are shortened.
In addition, the inclined base plate ensures that the four upright posts are positioned on the same horizontal plane, the structural stability of the derrick is improved,
preferably, one end of the inclined backing plate is provided with a positioning notch.
In this scheme, adopt above-mentioned structural style, it is fixed to make things convenient for the location installation.
Preferably, the second panel is provided with a through hole in the middle.
In this scheme, adopt above-mentioned structural style, the perforation is used for handling through jack support body.
Preferably, each two of the toggle plates are fixedly connected to one side of the second panel, and a cavity is arranged below the through hole.
In this scheme, adopt above-mentioned structural style, the structure atress of base is even, guarantees the structural stability of base can increase of service life.
Meanwhile, the cavity is used for placing the jack, and material cost is saved.
Preferably, the bolt is an M64 bolt.
In the scheme, the structure is adopted and is connected into a whole through the high-strength bolt. And the bearing capacity and the stability of the derrick are enhanced.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
according to the derrick of the marine drilling ship and the centering installation method thereof, the installation precision of the derrick is ensured by using the total station; the inclined base plate is processed and installed at one time, and efficiency and accuracy of centering installation of the derrick are improved. Meanwhile, the derrick is convenient to assemble, disassemble and replace, the construction period and the cost are reduced, and the structural stability of the derrick is improved.
Drawings
Fig. 1 is a flow chart of a derrick centering installation method according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a derrick according to a preferred embodiment of the invention.
Fig. 3 is a schematic structural diagram of a base according to a preferred embodiment of the invention.
Fig. 4 is a schematic structural view of a wedge plate according to a preferred embodiment of the invention.
Description of reference numerals:
frame body 1
Upright post 11
Second through hole 23
Through-hole 24
Inclined backing plate 3
Third through hole 31
Positioning notch 32
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, 2 and 4, the method for installing a derrick of a marine drilling vessel according to the present invention includes the steps of:
Preferably, the base 2 is processed on site by using a milling machine, so that the height difference of the base 2 is ensured to be within +/-1mm, and the flatness is less than 0.1mm, which is beneficial to improving the centering and mounting precision of the derrick. In addition, the base 2 is fixedly connected to the marine drilling ship through welding, and the stability of the derrick is enhanced.
And 102, placing a jack in the base 2, wherein the movable end of the jack penetrates through the base 2, and the jack is used for jacking the frame body 1.
103, hoisting the frame body 1 to the upper side of the base 2 through the floating crane, and adjusting the frame body by using a jack until the frame body 1 can be fixedly connected to the base 2.
Preferably, a steel wire rope is arranged on a lifting hook of the floating crane, a shackle is arranged at the end part of the steel wire rope and connected with a lifting bar of the frame body 1, and then the floating crane lifts the frame body 1 and transfers the frame body to the upper part of the base 2. The hoisting is finished at one time, and the construction period and the construction cost are saved. Meanwhile, the safety of the hoisting and moving process is guaranteed through the structure.
In addition, the guide frame body 1 and the base 2 can be quickly and accurately aligned by inserting the guide pin; if there is an error, the adjustment can be carried out by the jack until the frame body 1 can be fixedly connected to the base 2 by the M64 bolt, so that the structural stability of the derrick is enhanced.
And 104, checking the centering condition of the center line of the hole of the crown block and the center line of the hole of the rotary table by using a total station, and adjusting by using a jack, so that the center deviation of the center line of the hole of the crown block and the center line of the hole of the rotary table is within +/-10mm in the X and Y directions, thereby ensuring that the center deviation of a derrick of the marine drilling vessel is within +/-10mm in the X and Y directions and respectively recording the distance between different points between the frame body 1 and the base 2.
Preferably, the space between the frame body 1 and the base 2 can be arranged on the temporary steel cushion block, so that the overall stability of the derrick is ensured, the accuracy of subsequent measurement data is also ensured, and the installation precision of the derrick is favorably ensured.
And 105, checking for multiple times at different times by using a total station, and respectively recording the distances between different points according to different gaps between the frame body 1 and the base 2.
Preferably, the total station is used for fixed time in the morning or afternoon as far as possible, so that the influence of temperature change on recorded data is avoided, and the precision of installing the derrick is guaranteed.
And 106, processing and manufacturing the inclined backing plate 3 according to the measured data.
Because the inclined base plate 3 is measured according to the field size, the processing precision can be controlled within +/-0.1mm, meanwhile, the inclined base plate 3 is customized, can be installed and fastened at one time after the processing is finished, the efficiency of centering and installing the derrick is improved, and the installation precision is ensured.
And 107, placing the inclined base plate 3 between the frame body 1 and the base 2 through the adjustment of the jack, fixedly connecting the frame body 1, the inclined base plate 3 and the base 2, and finishing the centering installation of the derrick.
Preferably, the frame body 1, the inclined base plate 3 and the base 2 are fixedly connected through M64 bolts, so that the bearing capacity and the overall stability of the derrick are ensured.
Preparation of the derrick of the marine drilling vessel before the centering installation:
the components to be prepared include guide pins, floating cranes, shackles, steel cables, M64 bolts, torque wrenches, vernier calipers, feeler gauges, depth gauges, temporary steel spacers, copper hammers, total stations and the like.
Operating conditions of the derrick of the marine drilling vessel when installed in alignment:
(1) the derrick has no hook load;
(2) the wind speed is less than 16 m/s.
As shown in fig. 2 and 3, the derrick manufactured by the derrick centering installation method includes a frame body 1 and four bases 2, the base 2 is provided with a second panel 21 and eight toggle plates 22, the toggle plates 22 are fixedly connected to the bottom surface of the second panel 21, and every two toggle plates 22 are fixedly connected to one side of the second panel 21, so that the base 2 is uniformly stressed, the structural stability of the base 2 is maintained, and the service life of the derrick is prolonged.
The second panel 21 has a through hole 24 at the center thereof, and a cavity (not shown) is provided below the through hole 24. When guaranteeing 2 structural strength of base, but material saving cost of cavity, and the space that forms is used for placing the jack, and the expansion end of jack can be worn and too perforate 24 for the jack is used for jack-up support body 1.
As shown in fig. 4, the derrick further comprises a plurality of inclined base plates 3, the inclined base plates 3 are arranged between the frame body 1 and the base 2, one ends of the inclined base plates 3 are provided with positioning notches 32, when the derrick is installed, the jack is used for jacking the frame body 1 to place the inclined base plates 3 in the inclined base plates, and the positioning notches 32 can be abutted against the jack to play a positioning role, so that the derrick is convenient to install.
The bottom of support body 1 is equipped with four stands 11, four first panels, and first panel fixed connection is in the below of stand 11, and first panel is equipped with the first through-hole of a plurality of, and second panel 21 is equipped with a plurality of second through-hole 23, and the backing plate 3 is equipped with a plurality of third through-hole 31 to one side, and third through-hole 31, first through-hole, second through-hole 23 all pass through M64 bolt fixed connection. The derrick is connected into a whole through high-strength bolts, so that the bearing capacity and the stability of the derrick are enhanced. Preferably, be equipped with two oblique backing plates 3 between support body 1 and the base 2, set up respectively in controlling both ends for oblique backing plate 3 can guarantee that four stands 11 are in same horizontal plane and can evenly be atred, improves the structural stability of derrick.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A derrick centering installation method of an ocean drilling ship is characterized by comprising the following steps:
s1, processing and manufacturing a base by using a total station instrument and taking a rotary table of the marine drilling ship as a base surface, and connecting the base to the marine drilling ship;
s2, placing a jack inside the base, wherein the movable end of the jack penetrates through the base;
s3, moving the frame body above the base through a floating crane, and adjusting the frame body through the jack until the frame body can be fixedly connected to the base;
s4, checking the centering condition of the crown block borehole center line and the turntable borehole center line by using the total station, and adjusting by the jack, so that the center deviation of the crown block borehole center line and the turntable borehole center line, namely the derrick center deviation of the marine drilling ship, is within +/-10mm in the X and Y directions, and respectively recording the distance between different points between the frame body and the base;
s5, checking for multiple times at different times by using the total station, and respectively recording the distances between different points according to different gaps between the frame body and the base;
s6, processing and manufacturing an inclined base plate according to the measured data;
s7, through the adjustment of the jack, the inclined base plate is placed between the frame body and the base, the frame body, the inclined base plate and the base are fixedly connected, and the centering installation of the derrick is completed.
2. The derrick centering installation method as claimed in claim 1, wherein in the step S3, a wire rope is provided on a hook of the floating crane, a shackle is provided on an end of the wire rope, the shackle is connected to a hoist of the frame body, and then the floating crane lifts the frame body.
3. The derrick centering installation method as claimed in claim 1, wherein in the step S4, temporary steel spacers are disposed between the frame body and the base.
4. The derrick centering installation method as claimed in claim 1, wherein, in the step S3, the frame body is fixedly connected to the base by bolts;
in the step S7, the frame body, the inclined base plate and the base are all fixedly connected by bolts.
5. The derrick centering installation method as claimed in claim 1, wherein the base is fixedly connected to the marine drill ship by welding in the step S1.
6. A derrick manufactured by adopting the derrick centering installation method as claimed in any one of claims 1 to 5, characterized by comprising a frame body, four bases and a plurality of inclined base plates, wherein the bottom of the frame body is provided with four upright posts and four first panels, the first panels are fixedly connected below the upright posts, the first panels are provided with a plurality of first through holes, the inclined base plates are arranged between the frame body and the bases, the bases are provided with second panels and eight toggle plates, the toggle plates are fixedly connected to the bottom surfaces of the second panels, the second panels are provided with a plurality of second through holes, the inclined base plates are provided with a plurality of third through holes, and the third through holes, the first through holes and the second through holes are fixedly connected through bolts.
7. A derrick according to claim 6, characterised in that one end of the inclined pad is provided with a locating notch.
8. A derrick according to claim 6, characterised in that the second panel is provided with perforations in the middle.
9. A derrick according to claim 8, characterised in that two of the toggle plates are fixedly connected to one side of the second panel, and a cavity is provided below the perforations.
10. The derrick of claim 6, wherein the bolt is an M64 bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610251946.4A CN107303941B (en) | 2016-04-21 | 2016-04-21 | Derrick of marine drilling ship and centering installation method thereof |
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| CN201610251946.4A CN107303941B (en) | 2016-04-21 | 2016-04-21 | Derrick of marine drilling ship and centering installation method thereof |
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| CN107303941A CN107303941A (en) | 2017-10-31 |
| CN107303941B true CN107303941B (en) | 2020-08-11 |
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| CN108425631B (en) * | 2018-02-12 | 2019-12-31 | 安徽理工大学 | Automatic deviation rectifying system and method for sinking permanent derrick by ultra-thick surface soil layer freezing method |
| CN109025959B (en) * | 2018-07-04 | 2022-03-29 | 中国石油天然气股份有限公司 | Method and device for determining height of perforation test combined liquid pad |
| CN112455623B (en) * | 2020-11-26 | 2022-03-25 | 广州黄船海洋工程有限公司 | Pipe laying operation system installation method of pipe laying ship |
| CN112606970B (en) * | 2020-12-18 | 2022-02-01 | 武昌船舶重工集团有限公司 | Vertical alignment tool and ship rudder system alignment hoisting method |
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