CN213627472U - A tubular column righting device for well drilling of ocean - Google Patents
A tubular column righting device for well drilling of ocean Download PDFInfo
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- CN213627472U CN213627472U CN202021759104.8U CN202021759104U CN213627472U CN 213627472 U CN213627472 U CN 213627472U CN 202021759104 U CN202021759104 U CN 202021759104U CN 213627472 U CN213627472 U CN 213627472U
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Abstract
A tubular column righting device for offshore drilling comprises a base, a fixed support, an opening and closing mechanism and a locking mechanism, wherein the fixed support is arranged on the base, and two righting oil cylinders are symmetrically arranged at the top of the fixed support; the opening and closing mechanism is provided with two sets of swing frames and two swing frame driving oil cylinders, the two swing frames are respectively hinged with two sides of the fixed support, the two swing frame driving oil cylinders are respectively hinged with two sides of the fixed support, piston rods of the swing frame driving oil cylinders are hinged corresponding to one swing frame, the top of each swing frame is respectively provided with a centering oil cylinder, piston rods of the four centering oil cylinders are respectively connected with centering slips, and the four centering slips are uniformly distributed around the tubular column when the swing frames are in a closed state. Adopt the utility model discloses can obviously reduce the tubular column amplitude of oscillation, prevent that water proof tubular column from swinging by a wide margin and moon pool wall collision, cause accident and loss, the well head operation of being convenient for improves and adds under the adverse sea condition and connects tubular column operating efficiency, eliminates operating personnel's potential safety hazard.
Description
Technical Field
The utility model relates to a drilling rig, especially a tubular column righting device for ocean drilling.
Background
When the floating drilling platform or the drilling ship meets severe ocean weather in the open-circuit drilling process, the floating drilling platform or the drilling ship is influenced by sea waves, the ship body has large fluctuation and large deviation, and a drill string can swing greatly relative to the ship body. Particularly, when the pipe column is additionally connected, the lower pipe column is hung on the drill floor through the slips and is only fixed with the ship body in a single point mode, and the pipe column swings greatly to cause the joint at the upper part of the rotary table to shake, so that the screw thread is aligned and screwed out difficultly. The situation increases the working difficulty of the operator, affects the working efficiency and brings potential safety hazards to the operator. Therefore, a centralizing device is needed to be designed, which plays a role in restraining and centralizing the pipe columns with different diameters so as to reduce the swing amplitude of the pipe columns and improve the operation efficiency of the additional pipe columns under severe sea conditions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tubular column righting device for ocean drilling, righting the device and can playing the constraining action to the tubular column of multiple different specifications, prevent that the tubular column from swinging by a wide margin and bumping, cause the accident.
The problem of the utility model is solved by the following technical scheme:
a tubular column righting device for offshore drilling comprises a base, a fixed support, an opening and closing mechanism and a locking mechanism, wherein the fixed support is arranged on the base, and two righting oil cylinders are symmetrically arranged at the top of the fixed support; the opening and closing mechanism is provided with two sets of swing frames and two swing frame driving oil cylinders, the two swing frames are respectively hinged with two sides of the fixed support, the two swing frame driving oil cylinders are respectively hinged with two sides of the fixed support, piston rods of the swing frame driving oil cylinders are hinged corresponding to one swing frame, the top of each swing frame is respectively provided with a centering oil cylinder, piston rods of the four centering oil cylinders are respectively connected with centering slips, and the four centering slips are uniformly distributed around the tubular column when the swing frames are in a closed state.
Above-mentioned tubular column righting device for ocean drilling, locking mechanism are equipped with the locking hydro-cylinder, and the vertical limit connecting plate department of installing at one set of swing span of locking hydro-cylinder, and locking pin is connected to the locking hydro-cylinder piston rod, and the limit connecting plate department of another set of swing span is equipped with the pinhole, and two sets of swing span closed state, lockpin insert in the pinhole.
According to the tubular column centralizing device for offshore drilling, the fixed support and the swing frame are respectively provided with the rolling rollers, the roller surfaces of the rolling rollers are concave cambered surfaces, and the axes of the rolling rollers are perpendicular to the tubular column.
Above-mentioned a tubular column righting device for ocean drilling, inlay the ball on the righting slips.
According to the tubular column centering device for offshore drilling, the number of the rolling rollers is 8 according to the configuration of an upper layer and a lower layer, the number of the four rolling rollers on each layer is four, and the position of the centering oil cylinder corresponds to the number of the rolling rollers up and down.
According to the tubular column centering device for offshore drilling, the two side connecting plates of each swing frame are arranged up and down, the two locking oil cylinders are arranged up and down, and the piston rods of the two locking oil cylinders are arranged in opposite directions.
The utility model discloses drilling rod tubular column stability problem under to solving the ocean and creeping into bad weather situation designs, it is located under the rig floor to right device, promotes through the hydro-cylinder and rights the slips newspaper and close, and it encircles at the tubular column periphery to right the slips to play the restraint to the tubular column of different diameters and right the effect. Adopt the utility model discloses can obviously reduce the tubular column amplitude of oscillation, prevent that the tubular column from swinging by a wide margin and moon pool wall collision, cause accident and loss, the well head operation of being convenient for improves under the abominable sea condition and adds and connects tubular column operating efficiency, eliminates operating personnel's potential safety hazard.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the swing frame of the present invention in a closed state;
FIG. 2 is a schematic structural view of the open state of the swing frame of the present invention;
FIG. 3 is a schematic view of the opening and closing mechanism in a closed state;
FIG. 4 is a schematic view of the opening and closing mechanism in an open state;
fig. 5 and fig. 6 are schematic diagrams of the present invention for a large diameter tubular column and a small diameter tubular column, respectively.
The reference numbers in the figures are: 1. the device comprises a base, 2, a fixed support, 3, a swing frame driving oil cylinder, 4, a centering oil cylinder, 5, a centering slip, 6, a ball, 7, a swing frame, 8, an edge connecting plate, 9, a locking oil cylinder, 10, a rolling roller, 11, a pin hole, 12 and a pipe column.
Detailed Description
Referring to fig. 1-4, the present invention comprises a base 1, a fixing support 2, an opening and closing mechanism and a locking mechanism. The fixed bolster fixed mounting is on the base, and the fixed diameter middle part is equipped with the semicircle recess that holds the tubular column, and the fixed bolster top symmetry sets up two and rights hydro-cylinders 4. The opening and closing mechanism is provided with two sets of swing frames and two swing frame driving oil cylinders for respectively driving the swing frames. The two swing frames are respectively hinged with the two sides of the fixed support, the two swing frame driving oil cylinders are respectively hinged with the two sides of the fixed support, the swing frame driving oil cylinder piston rods are hinged with the swing frames, and the swing frames drive the oil cylinders to act to drive the swing frames to close or open. Each swing frame is provided with a quarter-circle groove, the two swing frames are in a closed state, and the swing frames and the fixed frame form a cylindrical hole for accommodating a pipe column and are used for righting a large-diameter pipe column or a heavy-duty pipe column. The top of each swing span is equipped with a righting hydro-cylinder respectively, and the piston rod that is located swing span and four righting hydro-cylinders that are located the fixed bolster is connected the slips of righting respectively, and four pieces of slips of righting of swing span closed state evenly distributed are around the tubular column, and the actions of the hydro-cylinder of righting can drive four pieces of slips of righting and move to suitable position to the right of adaptation to different minor diameter tubular columns. In order to reduce the friction between the centralizing slip and the pipe column in the lowering and rotating process of the pipe column, the centralizing slip is embedded with a ball 7 which can rotate freely.
Referring to fig. 1 and 2, the locking mechanism is used to lock the swing frame in the closed position of the swing frame. The locking mechanism is provided with a locking oil cylinder 9, the locking oil cylinder is vertically arranged at the side connecting plate 8 of one set of swing frame, a piston rod of the locking oil cylinder is connected with a locking pin, a pin hole 11 is arranged at the side connecting plate of the other set of swing frame, and the locking pin is inserted into the pin hole when the two sets of swing frames are in a closed state. In the illustrated embodiment, two side connecting plates of each swing frame are arranged up and down, two locking oil cylinders are arranged up and down, and piston rods of the two locking oil cylinders are arranged oppositely.
Referring to fig. 2, in order to provide an auxiliary righting effect for the tubular column in the righting process, rolling rollers 10 are respectively arranged on the fixed support and the swing frame, the roller surfaces of the rolling rollers are concave cambered surfaces, and the axes of the rolling rollers are perpendicular to the tubular column. In the illustrated embodiment, 8 rolling rollers are arranged in an upper layer and a lower layer, four rolling rollers are arranged on each layer, and the positions of the centralizing oil cylinders correspond to the upper and lower parts of the rolling rollers.
The utility model discloses when using when the ocean probing runs into bad weather, fix the base on the bottom plate of production tree coaster in the moon pool, will by the coaster righting the device and sending to being located under the rig floor, the swing span is opened, makes the tubular column get into the semi-circular inslot of fixed bolster, and the swing span is closed and is locked, and the slips motion is right in the promotion of righting the hydro-cylinder action, makes to right the slips and encircle around the tubular column, plays the restraint to the tubular column 12 of different diameters and rights the effect, as shown in figure 5, figure 6. The utility model discloses can effectively reduce the tubular column amplitude of oscillation, the well head operation of being convenient for improves and adds under the abominable sea condition and connects tubular column operating efficiency. And all oil cylinders of the righting device are powered by a common hydraulic station of the drilling ship, and the action of all the oil cylinders is realized through the remote control of an electromagnetic valve.
Claims (6)
1. A tubular column righting device for marine drilling which characterized in that: the hydraulic lifting device comprises a base (1), a fixed support (2), an opening and closing mechanism and a locking mechanism, wherein the fixed support is arranged on the base, and two righting oil cylinders (4) are symmetrically arranged at the top of the fixed support; the opening and closing mechanism is provided with two sets of swing frames (7) and two swing frame driving oil cylinders (3), the two swing frames are respectively hinged with two sides of the fixed support, the two swing frame driving oil cylinders are respectively hinged with two sides of the fixed support, piston rods of the swing frame driving oil cylinders are hinged corresponding to one swing frame, the top of each swing frame is respectively provided with a centering oil cylinder (4), piston rods of four centering oil cylinders are respectively connected with centering slips (5), and the four centering slips are uniformly distributed around the tubular column in a swing frame closing state.
2. The tubular string centralizer for offshore drilling of claim 1, wherein: the locking mechanism is provided with a locking oil cylinder (9), the locking oil cylinder is vertically arranged at a side connecting plate (8) of one set of swing frame, a piston rod of the locking oil cylinder is connected with a locking pin, a pin hole (11) is arranged at a side connecting plate of the other set of swing frame, and the locking pin is inserted into the pin hole when the two sets of swing frames are in a closed state.
3. The tubular string centralizer for offshore drilling of claim 2, wherein: the fixed support and the swing frame are respectively provided with a rolling roller (10), the roller surface of the rolling roller is an inwards concave cambered surface, and the axis of the rolling roller is vertical to the pipe column.
4. The tubular string centralizer for offshore drilling of claim 3, wherein: the righting slips are embedded with balls (6).
5. The tubular string centralizer for offshore drilling of claim 4, wherein: the number of the rolling rollers is 8 according to the configuration of an upper layer and a lower layer, the number of the rolling rollers is four in each layer, and the positions of the righting oil cylinders correspond to the upper part and the lower part of the rolling rollers.
6. The tubular string centralizer for offshore drilling of claim 5, wherein: two side connecting plates of each swing frame are arranged up and down, two locking oil cylinders are arranged up and down, and piston rods of the two locking oil cylinders are arranged oppositely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021759104.8U CN213627472U (en) | 2020-08-21 | 2020-08-21 | A tubular column righting device for well drilling of ocean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021759104.8U CN213627472U (en) | 2020-08-21 | 2020-08-21 | A tubular column righting device for well drilling of ocean |
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| Publication Number | Publication Date |
|---|---|
| CN213627472U true CN213627472U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021759104.8U Active CN213627472U (en) | 2020-08-21 | 2020-08-21 | A tubular column righting device for well drilling of ocean |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997535A (en) * | 2020-08-21 | 2020-11-27 | 中国地质科学院勘探技术研究所 | Drilling tubular column centralizing method and centralizing device for ocean severe weather |
| CN113638701A (en) * | 2021-10-13 | 2021-11-12 | 北京恒利新源地热能科技有限公司 | Drill rod centralizer of top drive type geothermal drilling machine |
-
2020
- 2020-08-21 CN CN202021759104.8U patent/CN213627472U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997535A (en) * | 2020-08-21 | 2020-11-27 | 中国地质科学院勘探技术研究所 | Drilling tubular column centralizing method and centralizing device for ocean severe weather |
| CN113638701A (en) * | 2021-10-13 | 2021-11-12 | 北京恒利新源地热能科技有限公司 | Drill rod centralizer of top drive type geothermal drilling machine |
| CN113638701B (en) * | 2021-10-13 | 2022-03-25 | 北京恒利新源地热能科技有限公司 | Drill rod centralizer of top drive type geothermal drilling machine |
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