CN113670570A - Jacket simulation device for ocean platform dismounting test - Google Patents
Jacket simulation device for ocean platform dismounting test Download PDFInfo
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- CN113670570A CN113670570A CN202110942418.4A CN202110942418A CN113670570A CN 113670570 A CN113670570 A CN 113670570A CN 202110942418 A CN202110942418 A CN 202110942418A CN 113670570 A CN113670570 A CN 113670570A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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Abstract
The invention discloses a jacket simulation device for a marine platform disassembly and assembly test, which comprises a bottom support, a telescopic bracket, a rotatable plate frame, a plurality of platform upper module supporting legs and a plurality of platform upper module butt joints, wherein the bottom support is stably fixed on a pseudo bottom of a storm flow test pool in a magnetic adsorption mode; the height of the telescopic bracket can be adjusted, and the rotatable plate frame can flexibly rotate and stably support; the rotatable plate frame is connected with the telescopic bracket through a roller and a sliding rail; the number of the supporting legs of the upper module of the platform can be adjusted according to the shape and the size of a load; the platform upper module butt joint is mounted at the top end of each platform upper module supporting leg. The device is also provided with an azimuth pointer and a six-component balance for accurately controlling the azimuth and monitoring the load condition in real time. The device has the advantages of modularization, reconfiguration, adjustability and simple and convenient operation.
Description
Technical Field
The invention relates to the field of ocean engineering test devices, in particular to a jacket simulation device for an ocean platform dismounting test.
Background
With the increasing exploitation of offshore oil and gas resources, more and more offshore platforms are applied to the exploitation and production processes of offshore oil and gas fields. The design life of an ocean platform is generally about 20 years. In order to protect the marine environment and avoid hindering the development of other marine resources, the marine platforms that have reached a useful life cycle and are no longer in use must be subjected to appropriate decommissioning processes, usually with total or partial decommissioning, according to the relevant international convention, international convention and national laws and regulations.
Generally, for the dismantling method of the upper module of the ocean platform, the following methods are provided: the hoisting method and the floating method are two. The dismantling of the jacket platform is a system project, a plurality of factors need to be considered, corresponding dismantling equipment needs to be researched and developed according to specific platform dismantling requirements, and a corresponding construction scheme is formulated. Because the operation process involves the coupling problem of ship motion and multi-body system motion, the conventional numerical simulation method cannot accurately simulate the real situation of the site, and the problems restrict the progress of related research and equipment development, therefore, the indoor model test method is one of effective solutions, and the research of ocean platform dismounting test in the stormy wave flowing water pond is very important and necessary. And it is very critical how to provide a suitable test model for the indoor water pool according to the actual jacket and the upper module and simulate the coupling motion generated by the actual movement of the jacket and the actual hull and the load moving process of the upper module under various sea conditions.
However, the following technical problems still exist in the prior art:
1. among the prior art, when dealing with different wave directions and incoming flow direction, need whole jacket model device of rearrangement to adapt to different stormy waves and flow operating modes, consequently waste time and energy, test efficiency is very low.
2. The support of fixed height among the prior art can't be according to the difference of depth of water, adjusts the height of platform in order to adapt to different depths of water.
3. The supporting positions and the number of the supporting legs in the prior art are fixed, and the requirements of fixed supporting of the upper modules of the ocean platforms with different shapes and sizes cannot be met.
4. The change of the bearing capacity of the jacket in the process of disassembling and assembling the upper module of the ocean platform cannot be known in the prior art.
5. The jacket model in the prior art is designed to be fixed, cannot be reconstructed and cannot be functionally expanded.
Therefore, those skilled in the art are dedicated to develop a jacket simulation device for an offshore platform disassembly and assembly test, which can truly simulate the coupling motion of a ship body actually generated under various sea conditions, so as to support the experimental research on the offshore platform disassembly and assembly process.
Disclosure of Invention
In view of the above defects in the prior art, the technical problem to be solved by the invention is how to adapt the ocean platform dismounting test device to different water depths and different incoming flow directions and wave and wind direction conditions, and how to realize stable support of the pipe frame and accurate and stable bearing of the upper module of the ocean platform.
In order to achieve the aim, the invention provides a jacket simulation device for a marine platform disassembly and assembly test, which comprises a bottom support, a telescopic bracket, a rotatable plate frame, a plurality of platform upper module supporting legs and a plurality of platform upper module butt joints, wherein the bottom support is stably fixed on a false bottom of a storm flow test pool in a magnetic adsorption mode; the lower end of the telescopic support is fixed on the bottom support through a bolt sleeve; a plurality of horizontal rollers are arranged on the upper end plane of the telescopic bracket; the lower end of the rotatable plate frame is provided with a sliding chute which is matched with the horizontal roller; the telescopic bracket is connected with the rotatable plate frame through a rotating shaft; the lower ends of the supporting legs of the upper module of the platform are correspondingly arranged at the corresponding positions of the rotatable plate frame; the platform upper module butt joint is mounted at the top end of each platform upper module supporting leg.
Preferably, the upper end plane of the telescopic support is square, the horizontal rollers are installed at the middle point of each side length of the square, and the number of the horizontal rollers is 4.
Preferably, a pivot is perpendicularly installed at the upper end plane center of telescopic bracket, a pivot sleeve is perpendicularly installed at the geometric center of the rotatable grillage, and the pivot sleeve is engaged with the pivot at the upper end plane center of telescopic bracket.
Preferably, the azimuth pointer is installed to the up end of pivot, the annular angle calibrated scale is equipped with in the pivot sleeve outside, the annular angle calibrated scale can with telescopic bracket's pivot up end the azimuth pointer cooperation is instructed the azimuth of rotatable grillage installation.
Preferably, the shape of the chute is circular.
Preferably, the platform upper module support legs are configured to be adjustable in mounting position.
Preferably, the top of the platform upper module supporting leg is provided with a force measuring unit.
Preferably, the force measuring unit is a six-component balance.
Preferably, the center of the platform upper module butt joint is a metal conical butt joint guide joint for guiding the butt joint of the platform upper module and the platform upper module supporting legs.
Preferably, horizontal spacers are disposed around the docking head of the upper platform module to support the upper platform module docked above the docking head.
The jacket simulation device for the ocean platform disassembly and assembly test provided by the invention has the following technical effects:
1. the rotatable plate frame can rotate freely around the axis of the jacket, and the azimuth angle can be adjusted accurately and quickly by matching with the dial and the pointer, so that the whole jacket model device is prevented from being integrally arranged again when the wave direction and the incoming flow direction are adjusted every time, the test device is suitable for various stormy and wave flow working conditions, the test time and the labor cost are saved, and the test efficiency and the test precision are improved.
2. The telescopic bracket can ensure that the jacket simulation device can adjust the height of the platform according to different water depths, and has the characteristic of strong adaptability.
3. The supporting legs of the platform upper module can freely adjust the supporting positions and the number of the supporting legs according to the butt joint positions of the test object ocean platform, and can be suitable for the fixed supporting requirements of ocean platform upper modules in different shapes and sizes.
4. The supporting legs of the upper module of the platform can be connected with corresponding sensors such as a six-component balance in series, the change of the bearing capacity of the jacket in the process of dismounting the upper module of the ocean platform is observed in real time in a test, and problems possibly occurring in actual operation are monitored and analyzed.
5. The jacket model is in a modular design, all parts are mutually independent and reconfigurable, the butt joint supporting device can be adjusted according to the upper modules of the ocean platforms with different sizes and shapes, and the jacket model is convenient to use widely and expand functions.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is an isometric view of a catheter holder assembly according to a preferred embodiment of the invention;
FIG. 2 is an isometric view of a jacket underbody device of a preferred embodiment of the invention;
FIG. 3 is a top view of a jacket superstructure of a preferred embodiment of the present invention;
FIG. 4 is a front view of the integrated jacket device of a preferred embodiment of the present invention;
fig. 5 is a left side view of the jacket assembly of a preferred embodiment of the present invention.
In the figure: 1-a bottom support; 2-a telescopic bracket; 3-a circular chute; 4-a rotatable plate frame; 5-platform upper module support legs; 6-platform upper module butt joint; 7-horizontal rollers; 8-a rotating shaft; 9-a rotating shaft sleeve; 10-azimuth dial; 11-azimuth pointer; 12-docking a guide head; 13-horizontal shim.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1 to 5, the invention provides a jacket simulation device for a dismounting test of an ocean platform, which comprises a bottom support 1, a telescopic bracket 2, a rotatable plate frame 4, a plurality of platform upper module supporting legs 5 and a plurality of platform upper module butt joints 6. In the test preparation process, the bottom support 1 is fixed on the false bottom of the storm-flow water pool through the magnetic attraction device according to the test requirements; the telescopic bracket 2 is used for adjusting the height according to the water depth and jacket immersion depth required by the test and is fixed on the bottom support 1 by using a bolt sleeve; the round chute 3 under the rotatable plate frame 4 is fit with the horizontal roller 7 at the upper end of the telescopic bracket 2, and the rotating shaft 8 is fit with the rotating shaft sleeve 9; according to the azimuth angle requirement of the upper module of the ocean platform required by the test working condition, the azimuth angle of the rotatable plate frame 4 is adjusted by means of an azimuth angle pointer 11 and an azimuth angle dial 10, and the fixing device at the position of the rotating shaft sleeve 9 is screwed to lock the rotating shaft 8, so that the rotatable plate frame 4 is positioned; according to the actual shape and the supporting point position of the upper module of the ocean platform, the position and the number of the supporting legs 5 of the upper module of the platform are adjusted to match the supporting point position of the upper module of the ocean platform, and a six-component balance or other sensors are additionally arranged at the supporting legs 5 or other positions of the upper module of the platform according to test requirements so as to collect data. The platform upper module butt joint 6 is arranged at the top end of each platform upper module supporting leg 5, the center of the platform upper module butt joint is provided with a metal conical butt joint guide head 12 for guiding the butt joint of the upper module and the platform upper module supporting leg 5, the coaxial centers of the butt joint sleeves at the corresponding positions of the platform upper module supporting leg 5 and the upper module are ensured, and the accurate and stable bearing of the ocean platform upper module at the butt joint point can be ensured; and horizontal gaskets 13 are arranged around the butt joint 6 for locking the upper module of the platform and are used for supporting the upper module of the platform butted above the butt joint and transferring load to the supporting legs 5 of the upper module of the platform connected with the lower end. In an installation experiment of the upper module of the ocean platform, the upper module of the ocean platform needs to be loaded on a jacket model in the experiment; in the dismantling test of the upper module of the ocean platform, the upper module of the ocean platform is loaded on the jacket model before the test, and can be unloaded from the jacket model by using a dismantling method such as a floating method or hoisting in the test process.
In another preferred embodiment of the present invention, the upper plane of the telescopic bracket 2 is square, and the middle point of each side of the square is provided with 4 horizontal rollers 7, so as to bear the load transferred by the rotatable plate frame 4 arranged above the square and ensure that the rotatable plate frame 4 can rotate smoothly. A rotating shaft 8 is vertically arranged at the center of the upper end plane of the telescopic bracket 2 so as to be in butt joint with the rotatable plate frame 4 above the rotating shaft 8, and an azimuth pointer 11 is arranged on the upper end face of the rotating shaft 8 so as to be matched with and indicate the azimuth of the rotatable plate frame 4. The rotating shaft sleeve 9 is vertically installed at the geometric center of the rotatable plate frame 4 so as to be matched with the rotating shaft 8, the rotatable plate frame 4 can rotate around a jacket shaft system, an azimuth dial 10 is installed on the outer side of the bearing sleeve 9 and is matched with an azimuth pointer 11 on the upper end face of the rotating shaft 8 to indicate the installation azimuth angle of the rotatable plate frame 4, and therefore the azimuth angle of the rotatable plate frame 4 can be indicated in a matched mode. Platform upper portion module supporting leg 5, according to the actual position of test object platform upper portion module, the lower extreme corresponds installs the relevant position at rotatable grillage 4, and platform upper portion module supporting leg 5 top installation six component balance is as the dynamometry unit, can take notes the load that platform upper portion module supporting leg 5 received to measure the load change condition that record platform upper portion module led to the fact for lower floor's jacket in the dismouting in-process.
In other similar embodiments, the telescoping legs 2 may be height adjustable to provide a jacket simulation at different water depths and different jacket immersion conditions.
In other similar embodiments, the rotatable plate frame 4 can rotate freely around the axis of the jacket, and the azimuth is accurately adjusted by matching with the dial and the azimuth pointer, so that a model fixing method convenient for quickly adjusting the azimuth of the upper module of the ocean platform is provided, the test simulation of the assembly and disassembly of the upper module of the ocean platform under different incoming flow directions and different wave directions is facilitated, and the problem that the whole jacket model device needs to be arranged integrally again when the incoming flow direction and the incoming flow direction are adjusted every time is avoided.
In other similar embodiments, the supporting legs 5 of the platform upper module can freely adjust the supporting positions and the number of the supporting legs according to the butt joint position of the test object ocean platform, and can be suitable for the fixed supporting requirements of the ocean platform upper modules with different shapes and sizes.
In other similar embodiments, the supporting legs 5 of the upper module of the platform can be connected with corresponding sensors such as a six-component balance in series, so that the change of the bearing capacity of the jacket in the process of dismounting the upper module of the ocean platform can be observed in real time in a test, and possible problems in actual operation can be monitored and analyzed. And other sensors can be carried to perform other researches according to different test requirements.
The jacket model weakens the specific geometric structure of the jacket, mainly focuses on the butt joint device and the positioning device of the upper module, and is suitable for the dismounting test of the upper module of the ocean platform. The jacket simulation device for the ocean platform disassembly and assembly test has the advantages that all parts are mutually independent, adjustable and reconfigurable, the simulation of the disassembly and assembly test of the upper module of the ocean platform with various shapes and sizes can be realized, the jacket simulation device can adapt to various water depths and jacket immersion working conditions, the azimuth angles of the upper module of the ocean platform relative to the incoming flow direction and the wave direction can be quickly adjusted, the jacket simulation device adapts to various wave flow working conditions, and theoretical basis and data support are provided for the design, analysis, risk management and other works of actual operation.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A jacket simulation device for an ocean platform disassembly and assembly test is characterized by comprising a bottom support, a telescopic support, a rotatable plate frame, a plurality of platform upper module supporting legs and a plurality of platform upper module butt joints, wherein the bottom support is stably fixed on a pseudo bottom of a storm flow test pool in a magnetic adsorption mode; the lower end of the telescopic support is fixed on the bottom support through a bolt sleeve; a plurality of horizontal rollers are arranged on the upper end plane of the telescopic bracket; the lower end of the rotatable plate frame is provided with a sliding chute which is matched with the horizontal roller; the telescopic bracket is connected with the rotatable plate frame through a rotating shaft; the lower ends of the supporting legs of the upper module of the platform are correspondingly arranged at the corresponding positions of the rotatable plate frame; the platform upper module butt joint is mounted at the top end of each platform upper module supporting leg.
2. The jacket simulating assembly and disassembly test device for offshore platform as claimed in claim 1, wherein the upper plane of the telescopic bracket is square, the horizontal rollers are installed at the middle point of each side length of the square, and the number of the horizontal rollers is 4.
3. The jacket simulating assembly for the offshore platform assembling and disassembling test according to claim 1, wherein a rotating shaft is vertically installed at the center of the upper plane of the telescopic bracket, a rotating shaft sleeve is vertically installed at the geometric center of the rotatable plate frame, and the rotating shaft sleeve is matched with the rotating shaft at the center of the upper plane of the telescopic bracket.
4. The jacket simulator of offshore platform disassembly and assembly test of claim 3, wherein an azimuth pointer is installed on the upper end surface of the rotating shaft, an annular angle dial is installed on the outer side of the sleeve of the rotating shaft, and the annular angle dial can be matched with the azimuth pointer on the upper end surface of the rotating shaft of the telescopic bracket to indicate the azimuth angle of the rotatable plate frame.
5. The jacket simulator for ocean platform disassembly and assembly tests of claim 1, wherein the shape of the chute is circular.
6. The jacket simulator of a rig disassembly test of claim 1, wherein the platform upper module support legs are configured to adjust an installation position.
7. The jacket simulator for offshore platform disassembly and assembly tests of claim 1, wherein a force measuring unit is installed on top of the module supporting legs on the platform.
8. The jacket simulation apparatus for ocean platform assembly and disassembly tests of claim 7, wherein the force measuring unit is a six-component balance.
9. The jacket simulator of a sea platform disassembly and assembly test of claim 1, wherein the center of said platform upper module docking head is a metal tapered docking guide head for guiding the docking of said platform upper module with said platform upper module support legs.
10. The jacket simulator of an ocean platform disassembly and assembly test of claim 1, wherein the platform upper module docking head is horizontally padded on the periphery to support the platform upper module docked thereon.
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| CN202110942418.4A CN113670570B (en) | 2021-08-17 | 2021-08-17 | Jacket simulation device for ocean platform dismounting test |
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| CN202110942418.4A CN113670570B (en) | 2021-08-17 | 2021-08-17 | Jacket simulation device for ocean platform dismounting test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636542A (en) * | 2022-03-15 | 2022-06-17 | 浙江大学 | Experimental device for research slamming load and pressure distribution of broken wave to jacket platform |
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| CN113670570B (en) | 2022-12-06 |
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