CN216110560U - Ocean workover rig derrick stop device - Google Patents
Ocean workover rig derrick stop device Download PDFInfo
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- CN216110560U CN216110560U CN202122123147.8U CN202122123147U CN216110560U CN 216110560 U CN216110560 U CN 216110560U CN 202122123147 U CN202122123147 U CN 202122123147U CN 216110560 U CN216110560 U CN 216110560U
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- derrick
- angle steel
- workover rig
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Abstract
A well frame limiting device of an ocean workover rig comprises a fixed limiting guide rail and a movable limiting guide rail, wherein the fixed limiting guide rail and the movable limiting guide rail are arranged on the inner side of a front thigh of a lower section of a well frame, the fixed limiting guide rail is located between the top of the lower section of the well frame and a side supporting box of a lock pin device, and the movable limiting guide rail is located between the side supporting box of the lock pin device and the bottom of the lower section of the well frame. The utility model changes the traditional horizontal penetrating type nesting mode of the derrick of the workover rig, adopts the vertical hanging installation nesting mode, avoids the overweight condition during the integral hoisting of the derrick, realizes the step-by-step installation of the derrick components of the ocean workover rig, and overcomes the defects of insufficient hoisting capacity of an ocean platform and limited space of a hoisting arm.
Description
Technical Field
The utility model belongs to the field of well rigs for well workover in the petroleum and gas industry, and particularly relates to a well rig limiting device of an ocean workover rig.
Background
When the derrick equipment of the workover rig is installed on the ocean production platform, the derrick and the accessories thereof are generally hoisted and installed on the platform as a whole, and the requirement on the crane capacity of the platform configuration is high. If the derrick and the accessories thereof are installed step by step, the traditional horizontal penetration type nesting mode of the upper and lower sections of the derrick of the ocean workover rig is also influenced by factors such as limited transportation space of a suspension arm of a crane and the like. With the continuous promotion of offshore oil development projects, the requirement of the existing offshore platform on the replacement or transformation and upgrading of drilling and workover equipment is increasing day by day, the influences of factors such as limited transportation space of a lifting capacity crane and a suspension arm, limited arrangement of platform wellhead table-board tools, limited operation space and the like commonly configured on the existing offshore production platform are considered, a hoisting and installing method of a vertical hoisting and installing sheathing mode of an offshore workover rig derrick with safe and reliable performance, reasonable and convenient installation and strong operation adaptability is explored, the upgrading and upgrading process of the offshore workover rig equipment can be greatly promoted, and the utilization efficiency of an offshore platform can be improved.
Disclosure of Invention
In view of the technical problems in the background art, the ocean workover rig derrick limiting device provided by the utility model changes the horizontal penetrating type sleeving mode of the traditional workover rig derrick, adopts the vertical hanging installation sleeving mode, avoids the overweight condition during integral hoisting of the derrick, realizes step-by-step installation of the derrick components of the ocean workover rig, and overcomes the defects of insufficient hoisting capacity of an ocean platform and limited space of a hoisting arm.
In order to solve the technical problems, the utility model adopts the following technical scheme to realize:
a well frame limiting device of an ocean workover rig comprises a fixed limiting guide rail and a movable limiting guide rail, wherein the fixed limiting guide rail and the movable limiting guide rail are arranged on the inner side of a front thigh of a lower section of a well frame, the fixed limiting guide rail is located between the top of the lower section of the well frame and a side supporting box of a lock pin device, and the movable limiting guide rail is located between the side supporting box of the lock pin device and the bottom of the lower section of the well frame.
In the preferred scheme, the fixed limit guide rail comprises a box-type beam framework, a limit angle steel guide rail and reinforcing rib plates, the limit angle steel guide rail is in butt joint with the box-type beam framework, and the reinforcing rib plates are uniformly arranged on two sides of the limit angle steel guide rail and the box-type beam framework.
In the preferable scheme, four parallel fixed limit angle steel guide rails are arranged at four corners of the inner side of the lower section of the derrick, wherein two fixed limit angle steel guide rails positioned at the front thigh of the lower section of the derrick are connected with the fixed limit angle steel guide rails.
In the preferred scheme, guide rail reinforcing boxes are symmetrically fixed on the inner wall of the front thigh of the lower section of the derrick, each guide rail reinforcing box comprises a reinforcing box main body and a connecting plate, and the connecting plates are welded with the reinforcing box main bodies.
In the preferable scheme, two fixed limit angle steel guide rails at the front thigh of the lower section of the derrick are connected with the guide rail reinforcing box.
In the preferred scheme, the movable limiting guide rail comprises an angle steel framework, reinforcing ribs and gap blocks, wherein bolt connecting holes matched with the guide rail reinforcing box are formed in the angle steel framework, and the reinforcing ribs and the gap blocks are uniformly arranged on the central line of the bolt connecting holes of the angle steel framework.
This patent can reach following beneficial effect:
1. through the ocean workover rig derrick stop device who adopts above-mentioned structure, changed traditional ocean workover rig derrick level and run through formula registrate mode, adopt and hang into the installation registrate mode perpendicularly, and the installation is reasonable convenient.
2. By adopting the hoisting and installing method of the derrick vertical direction hoisting and installing nesting mode of the ocean workover rig derrick limiting device, the transformation adaptability of the in-service ocean platform workover rig equipment is strong, the difficulties of insufficient ocean platform hoisting capability and limited hoisting arm space are effectively overcome, the upgrading and transformation process of the ocean workover rig equipment can be greatly promoted, and the utilization efficiency of an ocean platform is improved.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a first schematic structural view of a lower section of a derrick of the present invention;
FIG. 2 is a schematic view of the structure of the lower section of the derrick of the utility model;
FIG. 3 is a view of the fixed curb rail of the present invention;
FIG. 4 is a first view of the front leg rail reinforcement cage of the present invention;
FIG. 5 is a second view of the front leg rail reinforcement cage of the present invention;
FIG. 6 is a structural view of a movable type position-limiting guide rail of the present invention;
FIG. 7 is a schematic diagram of the fitting installation of the upper derrick section and the lower derrick section according to the utility model;
FIG. 8 is a schematic cross-sectional view A-A of FIG. 7 according to the present invention;
FIG. 9 is a schematic cross-sectional view B-B of FIG. 7 according to the present invention.
In the figure: the derrick comprises a derrick lower section 1, a derrick lower section front thigh 101, a derrick lower section rear thigh 102, a locking pin device side supporting box 103, a fixed limit angle steel guide rail 104, a fixed limit guide rail 2, a box-shaped beam framework 201, a limit angle steel guide rail 202, a reinforcing rib 203, a derrick upper section 3, a front leg guide rail reinforcing box 4, a reinforcing box main body 401, a connecting plate 402, a movable limit guide rail 5, an angle steel framework 501, a reinforcing rib 502 and a gap block 503.
Detailed Description
The technical scheme is that a limiting device is provided on the basis of the existing derrick of the ocean workover rig, namely a fixed limiting guide rail 2 and a movable limiting guide rail 5; the movable limit guide rail 5 is detachably connected, so that the upper section of the derrick can be vertically placed into the upper section of the derrick without inserting the upper section of the derrick into the side part of the upper section of the derrick, the hoisting risk is reduced, and the working strength is reduced. The existing marine workover rig well frame comprises a well frame base, a well frame lower section and a well frame upper section, wherein the well frame lower section comprises a well frame lower section front thigh and a well frame lower section rear thigh, and the well frame upper section comprises a well frame upper section front thigh and a well frame upper section rear thigh. The upper part of the lower section of the derrick is provided with a side supporting box of a lock pin device, the upper section of the derrick and the lower section of the derrick are used for installing a telescopic oil cylinder 12, the piston rod end of the telescopic oil cylinder 12 is connected with a detachable telescopic oil cylinder installing beam 206, and the cylinder body end of the telescopic oil cylinder 12 is fixed in the middle of a double-layer truss of the upper body of the derrick. And a detachable telescopic oil cylinder mounting beam is arranged above a cross beam at the bottom of the lower section of the derrick. The detachable telescopic oil cylinder mounting beam is used for mounting a telescopic oil cylinder, and the telescopic oil cylinder is used for driving the upper section of the derrick to move.
The specific installation mode of the fixed limit guide rail 2 and the movable limit guide rail 5 is as follows:
the preferable scheme is as shown in fig. 1 to fig. 9, the marine workover rig derrick limiting device comprises a fixed limiting guide rail 2 and a movable limiting guide rail 5, wherein the fixed limiting guide rail 2 and the movable limiting guide rail 5 are arranged on the inner side of a front thigh 101 of a lower derrick section, the fixed limiting guide rail 2 is positioned between the top of the lower derrick section 1 and a locking pin device side supporting box 103, and the movable limiting guide rail 5 is positioned between the locking pin device side supporting box 103 and the bottom of the lower derrick section 1. And a space for the upper derrick section 3 to stretch and retract is arranged in the lower derrick section 1 and close to a derrick doorframe, and fixed limiting angle steel guide rails 104 with four corners distributed in parallel are arranged.
Further, the fixed limit guide rail 2 comprises a box-type beam framework 201, a limit angle guide rail 202 and reinforcing rib plates 203, wherein the limit angle guide rail 202 is in butt joint with the box-type beam framework 201, and the reinforcing rib plates 203 are uniformly arranged on two sides of the limit angle guide rail 202 and the box-type beam framework 201. The box-shaped beam framework 201 is a channel steel main body, a rib plate is arranged on the section of the channel steel, and a sealing plate is welded at the top of the rib plate. The fixed limit guide rail 2 is welded between the vertical column at the top door frame side of the lower section 1 of the derrick and the side supporting box 103 of the lockpin device. By adopting the fixed limit guide rail 2 and the fixed limit angle steel guide rail 104 structure with four corners distributed in parallel in the lower section 1 of the derrick, the limit of the superposed section part of the upper section and the lower section of the derrick on the front and the back thighs of the upper section of the derrick in the vertical operation state is realized, and the structural strength of the derrick is ensured.
Furthermore, four parallel fixed limit angle steel guide rails 104 are arranged at four corners of the inner side of the lower section of the derrick, wherein two fixed limit angle steel guide rails 104 positioned at the front thigh 101 of the lower section of the derrick are connected with the fixed limit guide rail 2.
Further, the guide rail reinforcing boxes 4 are symmetrically fixed on the inner wall of the front thigh 101 of the lower section of the derrick, each guide rail reinforcing box 4 comprises a reinforcing box main body 401 and a connecting plate 402, and the connecting plates 402 are welded with the reinforcing box main bodies 401 and are reinforced by rib plates. The guide rail reinforcing boxes 4 are uniformly and equidistantly welded on the inner wall of the front thigh 101 of the lower section of the derrick. Two fixed spacing angle steel guide rails 104 at the front thigh 101 of the lower section of the derrick are connected with the guide rail reinforcing box 4.
Further, the movable limiting guide rail 5 comprises an angle iron framework 501, a reinforcing rib 502 and a gap block 503, a bolt connecting hole matched with the guide rail reinforcing box 4 is formed in the angle iron framework 501, and the reinforcing rib 502 and the gap block 503 are uniformly arranged on the central line of the bolt connecting hole of the angle iron framework 501. The upper section of the derrick is limited by adopting the fixed limiting guide rail and the movable limiting guide rail, the structural strength is reliable, and the assembly is safe and convenient.
The derrick installation steps adopting the ocean workover rig derrick limiting device are as follows:
the upper section 3 of the derrick vertically falls into the lower section 1 of the derrick, fixed limiting angle steel guide rails 104 which are distributed in parallel at four corners of a door frame of the lower section 1 of the derrick are sleeved, movable limiting guide rails 5 are connected with guide rail reinforcing boxes 4 fixed on front thighs 101 of the lower section of the derrick through bolts and are symmetrically fixed on the inner walls of the front thighs 101 of the lower section of the derrick, and the limitation on the upper section of the derrick after the sleeving is realized. Through adopting the derrick installation step of above-mentioned structure, under the prerequisite of guaranteeing derrick structural strength, to installing safe and reliable, changed traditional workover rig derrick level run-through formula registrate mode, adopt and hang into the installation registrate mode perpendicularly, overweight condition when having avoidd derrick integral hoisting realizes the installation of ocean workover rig derrick component step by step, overcomes the not enough and limited difficulty in davit space of ocean platform loop wheel machine ability.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (6)
1. The utility model provides an ocean workover rig derrick stop device which characterized in that: the derrick structure comprises a fixed limiting guide rail (2) and a movable limiting guide rail (5), wherein the fixed limiting guide rail (2) and the movable limiting guide rail (5) are arranged on the inner side of a front thigh (101) of a lower derrick section, the fixed limiting guide rail (2) is located between the top of the lower derrick section (1) and a side supporting box (103) of a lock pin device, and the movable limiting guide rail (5) is located between the side supporting box (103) of the lock pin device and the bottom of the lower derrick section (1).
2. The marine workover rig derrick stop device of claim 1, wherein: fixed spacing guide rail (2) include box girder skeleton (201), spacing angle steel guide rail (202) and deep floor (203), and spacing angle steel guide rail (202) and box girder skeleton (201) dock to evenly set up deep floor (203) in the both sides of spacing angle steel guide rail (202) and box girder skeleton (201).
3. The marine workover rig derrick stop device of claim 2, wherein: four parallel fixed limit angle steel guide rails (104) are arranged at four corners of the inner side of the lower section of the derrick, wherein two fixed limit angle steel guide rails (104) positioned at the front thigh (101) of the lower section of the derrick are connected with the fixed limit angle steel guide rails (2).
4. The marine workover rig derrick stopping device of claim 3, wherein: the inner wall of the front thigh (101) of the lower section of the derrick is symmetrically fixed with guide rail reinforcing boxes (4), each guide rail reinforcing box (4) comprises a reinforcing box main body (401) and a connecting plate (402), and the connecting plates (402) are welded with the reinforcing box main bodies (401).
5. The marine workover rig derrick stopping device of claim 4, wherein: two fixed limit angle steel guide rails (104) at the front thigh (101) of the lower section of the derrick are connected with the guide rail reinforcing box (4).
6. The marine workover rig derrick stopping device of claim 4, wherein: movable spacing guide rail (5) include angle steel skeleton (501), strengthening rib (502) and clearance piece (503), are equipped with on angle steel skeleton (501) and strengthen the bolted connection hole that box (4) were matchd with the guide rail, and strengthening rib (502) and clearance piece (503) are evenly arranged angle steel skeleton (501) bolted connection hole central line position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123147.8U CN216110560U (en) | 2021-09-03 | 2021-09-03 | Ocean workover rig derrick stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123147.8U CN216110560U (en) | 2021-09-03 | 2021-09-03 | Ocean workover rig derrick stop device |
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| CN216110560U true CN216110560U (en) | 2022-03-22 |
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| CN202122123147.8U Active CN216110560U (en) | 2021-09-03 | 2021-09-03 | Ocean workover rig derrick stop device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719241A (en) * | 2021-09-03 | 2021-11-30 | 中石化四机石油机械有限公司 | Derrick structure of ocean workover rig and installation method thereof |
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2021
- 2021-09-03 CN CN202122123147.8U patent/CN216110560U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719241A (en) * | 2021-09-03 | 2021-11-30 | 中石化四机石油机械有限公司 | Derrick structure of ocean workover rig and installation method thereof |
| CN113719241B (en) * | 2021-09-03 | 2024-05-28 | 中石化四机石油机械有限公司 | Ocean workover rig derrick structure and installation method thereof |
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