CN112097734B - Semi-submersible platform heave measuring device - Google Patents
Semi-submersible platform heave measuring device Download PDFInfo
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- CN112097734B CN112097734B CN202010783212.7A CN202010783212A CN112097734B CN 112097734 B CN112097734 B CN 112097734B CN 202010783212 A CN202010783212 A CN 202010783212A CN 112097734 B CN112097734 B CN 112097734B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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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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Abstract
The invention discloses a semi-submersible platform heave measurement device, which comprises a rope body, a containing device and a connecting device, wherein the containing device drives the rope body to be collected and released; the middle part of the rope body is also provided with a pulley assembly for driving and guiding the rope body, and the pulley assembly and the accommodating device are fixedly arranged on the platform; the pulley assembly is also provided with a detection device and a data processing module, wherein the detection device and the data processing module are used for detecting the rotation direction and the rotation number of the pulley assembly, and the detection device is in communication connection with the data processing module. The semi-submersible platform is connected with the rope body through the storage device and is matched with the detection device and the data processing module which are arranged on the pulley assembly for use, when the semi-submersible platform is sunk, the rope body drives the pulley assembly to rotate and is detected by the detection device, the data processing module processes and converts the data of the pulley rotation into the sinking direction and the sinking amplitude of the platform, and the data processing module records and stores the data in real time, so that the accuracy and the real-time performance of measurement are ensured.
Description
Technical Field
The invention relates to the field of offshore oil and gas field exploration and development, in particular to a semi-submersible platform heave measurement device.
Background
The semi-submersible drilling platform can meet the requirement of variable water depth and well solve the problems of stability and transportability, so the semi-submersible drilling platform is often the first choice. However, the offshore operation is always influenced by wind, waves and currents, and the platform is in a floating state from top to bottom. At present, the common method for measuring the heave amplitude of a semi-submersible drilling platform comprises the following steps: one end of the steel wire rope is tied to the support ring of the marine riser, and the other end tied with a heavy hammer is erected on one side of the gate of the drill floor through the pulley block and the graduated scale for the driller to refer to.
In the implementation process, the method for measuring and recording the heave amplitude of the platform has the following problems: 1. the heave amplitude and period measurement records can only be roughly observed by naked eyes; 2. because the tide level is not in the flat tide all the time, the heave measurement zero point is not at the zero point of the graduated scale, and the judgment error is easy to cause. The two points result in that under the condition that the platform is greatly ascended and descended, the ascending and descending amplitude and period in a period of time cannot be accurately measured and recorded, and effective reference cannot be provided for related operation and risk prevention.
Disclosure of Invention
The invention aims to solve the technical problem of providing a semi-submersible platform heave measurement device which is convenient for accurate measurement and can record in real time aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the semi-submersible platform heave measuring device comprises a rope body, a containing device and a connecting device, wherein the containing device drives the rope body to be contained and released, one end of the rope body is fixed relative to the seabed, and the containing device and the connecting device are respectively arranged at two opposite ends of the rope body;
the middle part of the rope body is also provided with a pulley assembly for driving and guiding the rope body, and the pulley assembly and the accommodating device are fixedly arranged on the semi-submersible platform;
the pulley assembly is further provided with a detection device for detecting the rotation direction and the rotation number of turns of the pulley assembly, the semi-submersible platform settlement measuring device further comprises a data processing module for converting the rotation direction and the rotation number of turns into the heave direction and the heave amplitude of the platform, and the detection device is in communication connection with the data processing module.
Preferably, the storage device is a roller-shaped storage device, and the rope body is wound on the roller-shaped storage device.
Preferably, the accommodating device comprises an elastic mechanism for driving the rope body to automatically retract, and the elastic mechanism is of a ruler spring structure.
Preferably, the rope wound on the roller-shaped storage device is greater than or equal to 5 meters.
Preferably, the storage device further includes a storage housing for accommodating the ruler spring structure and the rope body, and a first cross bar for fixedly connecting the ruler spring structure and the storage housing, the first cross bar is inserted through a circle center of the ruler spring structure, and the ruler spring structure and the first cross bar are coaxially arranged.
Preferably, at least one first bearing is further arranged between the accommodating shell and the ruler spring structure, and the first bearing is coaxially arranged with the first cross rod and the ruler spring structure.
Preferably, the pulley assembly comprises a fixed pulley, a second cross rod coaxially arranged with the fixed pulley, and at least one second bearing coaxially arranged with the second cross rod, the detection device is arranged on the second bearing, and the second bearing is fixedly connected with the semi-submersible platform.
Preferably, the detection device comprises an electromagnetic sensor and a hall sensor.
Preferably, the rope body is a steel wire rope.
Preferably, the connecting device is a riser support ring fixedly connected with a riser inserted into the sea floor.
The invention has the following beneficial effects: the semi-submersible type rope guide device is connected with the rope body through the recyclable storage device and is matched with the detection device and the data processing module which are arranged on the pulley assembly for use, when the semi-submersible type platform is subjected to heaving, the pulley assembly is driven to rotate and is detected by the detection device, the data processing module processes and converts the data of pulley rotation into the heaving direction and the heaving amplitude of the platform, and real-time recording and storage are carried out, so that the measuring accuracy and real-time performance are ensured.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a top cross-sectional view of the storage device of the present invention;
FIG. 3 is a schematic view of the construction of the blade spring of the present invention;
figure 4 is a schematic view of the construction of a sheave assembly according to one embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
The semi-submersible platform heave measurement device provided by the invention can be used on a semi-submersible drilling platform for offshore oil and gas field exploration and development, and is used for measuring and recording the settlement amplitude and settlement period of the semi-submersible platform. Referring to fig. 1, it may include a rope 10, a receiving device 20 receiving the rope 10, and a connecting device 30 connecting one end of the rope 10 to the seabed to be fixed. The middle part of the rope body 10 is also provided with a pulley assembly 40 which is used for matching with the rope body 10 and carrying out transmission and guide on the rope body 10 when the platform is raised and sunk. The semi-submersible platform heave measurement device provided by the invention further comprises a detection device 50 arranged on the pulley assembly 40 and a data processing module (not shown in the figure) in communication connection with the detection device 50, wherein the detection device 50 is used for detecting the rotation direction and the rotation number of turns of the pulley assembly 40, and the data processing module receives the data of the rotation direction and the rotation number of turns, processes and converts the data into a heave trend and a heave amplitude of the semi-submersible platform, and records the heave trend and the heave amplitude.
Specifically, referring to fig. 1, the rope body 10 includes a first end 11 and a second end 12 that are oppositely disposed, where the first end 11 is fixedly connected to the storage device 20, the second end 12 is fixedly connected to the connection device 30, and preferably, the rope body 10 is a steel wire rope with high strength. The middle part of the steel wire rope is lapped on the pulley assembly 40, one end fixedly connected with the connecting device 30 is fixed on the seabed, when the platform rises and sinks up and down, the second end 12 fixed with the connecting device 30 is kept still, and the first end 11 is retracted along with the rising and falling of the semi-submersible platform.
In some embodiments, the storage device 20 may be a manual rope winding device, so that the rope body 10 is always kept in a tight state; in other embodiments, in order to make the measurement more convenient and automatic, it is preferable that the storage device 20 can automatically receive the rope, referring to fig. 1 and 2, in some embodiments, the storage device 20 includes a storage housing 21, an elastic mechanism 22, and a first cross bar 23 fixedly connecting the storage housing 21 and the elastic mechanism 22, wherein the elastic mechanism 22 is fixedly connected to the first end 11 of the rope 10 and can drive the rope 10 to automatically retract. In some embodiments, the storage device 20 is in a drum shape, and the rope 10 is wound on the storage device 20, preferably, the rope 10 wound on the storage device 20 is at least 5 meters to meet the distance requirement for the platform to ascend and descend. In the present embodiment, the elastic mechanism 22 is preferably a tape spring structure, which is an elastic steel tape wound in a roll shape and can be stretched outwards under the action of external force, and can automatically retract when no external force is applied. The first end 11 is fixed at the tail end of the ruler spring structure through a fixing device such as a rope clip, when the platform rises along with the tide, because the second end 12 of the rope body 10 is fixed on the seabed, and the distance between the second end 12 and the rising platform is prolonged, the first end 11 drives the ruler spring structure to stretch outwards; when the platform sinks along with the tide, the distance between the second end 12 and the sunken platform is shortened, and after the external force of the stretching rope body 10 is removed, the ruler spring structure drives the first end 11 to retract. In some embodiments, in order to make the blade spring structure rotate smoothly under the action of external force, at least one first bearing is preferably further provided between the storage housing 21 and the blade spring structure, in this embodiment, the width of the storage housing 21 is slightly larger than that of the blade spring structure, the first bearing is preferably symmetrically provided on two sides of the blade spring structure, and the first bearing, the blade spring structure and the first cross bar 23 are coaxially provided.
Referring to fig. 4, the pulley assembly 40 in some embodiments includes a fixed pulley 41 fixed on the semi-submersible platform, the middle portion of the rope 10 is overlapped or wound on the fixed pulley 41, and the rope 10 moves to rotate the fixed pulley 41. The pulley assembly 40 further includes a second cross bar 42 coaxially disposed with the fixed pulley 41, and at least one second bearing 43 coaxially disposed with the second cross bar 42, wherein when the fixed pulley 41 rotates, the second cross bar 42 drives the second bearing 43 to rotate synchronously. In some embodiments, as shown in fig. 1, the sheave assembly 40 is suspended from the semi-submersible platform; in other embodiments, as shown in fig. 4, the sheave assembly 40 is horizontally disposed on the semi-submersible platform.
In the present invention, the second end 12 of the rope 10 is fixedly connected to the connecting device 30, wherein the connecting device 30 is preferably a riser support ring fixedly connected to a riser on the seabed, and is sleeved on the riser, and wherein the riser is fixedly inserted into the seabed, i.e. the second end 12 connected to the riser remains stationary relative to the seabed and does not move up and down with the tide, so as to ensure the measurement accuracy of the measuring device.
In the present invention, the semi-submersible platform heave measurement apparatus further includes a detection device 50 disposed on the pulley assembly 40 and a data processing module communicatively connected to the detection device 50, preferably, the detection device 50 is disposed on the second bearing 43 for detecting the rotation direction and the number of rotations of the second bearing 43, and since the second bearing 43 and the fixed pulley 41 rotate synchronously, the rotation direction and the number of rotations of the second bearing 43 detected by the detection device 50 can also be regarded as the rotation direction and the number of rotations of the fixed pulley 41. In some embodiments, the detecting device 50 includes an electromagnetic sensor and a hall sensor, the detecting device 50 transmits the detected data related to the rotating direction and the number of rotating turns to the data processing module, and the data processing module determines the rotating direction processing as the heave direction of the platform through conversion, and in some embodiments, when the detecting device 50 detects that the second bearing 43 rotates clockwise, the data processing module determines that the platform rises; when the detection device 50 detects that the second bearing 43 rotates counterclockwise, the data processing module determines that the platform sinks. Meanwhile, the data processing module can calculate the moving distance of the rope body 10 according to the number of rotation turns detected by the detection device 50, and the ascending distance or the descending distance of the platform is judged by integrating the rotation direction. Specifically, the number of bearing rotation turns is n (n may or may not be an integer), and the pulley radius of the fixed pulley 41 is r, so that the distance of platform rising or sinking is 2 π rn. And the data processing module processes the data and records the processed real-time platform heave data so as to store the data as the heave amplitude and period of the semi-submersible platform.
When the semi-submersible platform heave measuring device provided by the invention is used for carrying out platform heave recording, the connecting mechanism and a marine riser arranged on the seabed are pre-connected in place, the rope body 10 is lapped or wound on the fixed pulley 41, when the platform floats upwards along with tide, the rope body 10 and a second end 12 of the connecting mechanism connected on the marine riser are fixed, the distance between the platform and the second end 12 is lengthened, and the first end 11 drives the scale spring structure to stretch so as to adapt to the lengthened distance; when the platform sinks along with the tide, the second end 12 of the rope body 10 connected to the marine riser with the connecting mechanism is fixed, the distance from the platform to the second end 12 is shortened, after the external stretching force is removed, the first end 11 is driven to retract by the aid of the ruler spring structure, the fixed pulley 41 rotates along with stretching and shrinking of the rope body 10, the detection device 50 detects the rotating direction and the rotating turns of the second bearing 43 and transmits the data to the data processing module, the data processing module calculates and converts the rotating direction and the rotating turns into the heave direction and the heave amplitude of the platform, the heave period is generated by recording in real time, and the data are stored in real time so that a user can check the data conveniently.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The semi-submersible platform heave measurement device is characterized by comprising a rope body (10), a receiving device (20) for driving the rope body (10) to retract and release and a connecting device (30) for fixing one end of the rope body (10) relative to the seabed, wherein the receiving device and the connecting device (30) are respectively arranged at two opposite ends of the rope body (10);
the middle part of the rope body (10) is also provided with a pulley assembly (40) for driving and guiding the rope body (10), and the pulley assembly (40) and the accommodating device (20) are fixedly arranged on a semi-submersible platform;
the accommodating device (20) comprises an elastic mechanism (22) for driving the rope body (10) to automatically retract, and the elastic mechanism (22) is of a ruler spring structure;
the accommodating device (20) further comprises an accommodating shell (21) for accommodating the ruler spring structure and the rope body (10), and a first cross rod (23) for fixedly connecting the ruler spring structure and the accommodating shell (21), wherein the first cross rod (23) penetrates through the circle center of the ruler spring structure and is inserted into the circle center of the ruler spring structure, and the ruler spring structure and the first cross rod (23) are coaxially arranged;
the semi-submersible platform settlement measuring device is characterized in that a detection device (50) used for detecting the rotation direction and the rotation number of turns of the pulley assembly (40) is further arranged on the pulley assembly (40), the semi-submersible platform settlement measuring device further comprises a data processing module used for converting the rotation direction and the rotation number of turns into the heave direction and the heave amplitude of the platform, and the detection device (50) is in communication connection with the data processing module.
2. Semi-submersible platform heave measurement apparatus according to claim 1, characterized in that the storage means (20) is a drum-like storage means, the rope (10) being wound around the drum-like storage means (20).
3. Semi-submersible platform heave measurement apparatus according to claim 2, characterised in that the rope (10) wound on the drum-like storage means (20) is greater than or equal to 5 metres.
4. Semi-submersible platform heave measurement apparatus according to claim 3, characterised in that at least one first bearing (24) is further provided between the receiving casing (21) and the blade spring structure, the first bearing (24) being arranged coaxially with the first crossbar (23) and the blade spring structure.
5. Semi-submersible platform heave measurement apparatus according to claim 1, characterized in that the pulley assembly (40) comprises a fixed pulley (41) and a second cross bar (42) arranged coaxially with the fixed pulley (41) and at least one second bearing (43) arranged coaxially with the second cross bar (42), the detection device (50) being arranged on the second bearing (43), the second bearing (43) being fixedly connected with the semi-submersible platform.
6. Semi-submersible platform heave measurement apparatus according to claim 5, wherein the detection device (50) comprises an electromagnetic sensor and a hall sensor.
7. Semi-submersible platform heave measurement apparatus according to claim 1, wherein the rope (10) is a wire rope.
8. Semi-submersible platform heave measurement apparatus according to claim 1, characterised in that the connection means (30) is a riser support ring fixedly connected with a riser inserted in the sea floor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010783212.7A CN112097734B (en) | 2020-08-06 | 2020-08-06 | Semi-submersible platform heave measuring device |
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| CN202010783212.7A CN112097734B (en) | 2020-08-06 | 2020-08-06 | Semi-submersible platform heave measuring device |
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| CN112097734A CN112097734A (en) | 2020-12-18 |
| CN112097734B true CN112097734B (en) | 2022-05-27 |
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| CN114877861B (en) * | 2022-05-09 | 2024-05-10 | 山东兴华建设集团有限公司 | Building height measuring device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798558A (en) * | 2018-06-27 | 2018-11-13 | 山东大学 | A kind of passive heave compensator of winch type master and its working method |
| CN109059887A (en) * | 2018-08-22 | 2018-12-21 | 中国海洋石油集团有限公司 | A kind of length of semisubmersible drilling platform wellhead column measures system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085509A (en) * | 1976-04-07 | 1978-04-25 | Martin-Decker Company | Apparatus for compensating for the heaving of a floating drilling platform for connection with apparatus for measuring the rate of penetration of pipe run into an offshore well |
| EP0040210A1 (en) * | 1979-11-17 | 1981-11-25 | Caley Hydraulics Limited | Heave compensator |
| FR2523918A1 (en) * | 1982-03-29 | 1983-09-30 | Bretagne Atel Chantiers | DEVICE FOR COMPENSATING FOR THE PILKING SUFFERED BY A SUBMERSIBLE LOAD SUSPENDED FROM A SHIP |
| US6469664B1 (en) * | 1999-10-05 | 2002-10-22 | Honeywell International Inc. | Method, apparatus, and computer program products for alerting surface vessels to hazardous conditions |
| CN103626068A (en) * | 2012-08-28 | 2014-03-12 | 中国科学院沈阳自动化研究所 | Active heave compensation system of underwater robot |
| DK178120B1 (en) * | 2013-04-18 | 2015-06-01 | A P Møller Mærsk As | An Offshore Floating Vessel and a Method of Operating the Same |
| CN204057724U (en) * | 2014-08-20 | 2014-12-31 | 宝鸡石油机械有限责任公司 | A kind of semi-submerged platform wave compensating device testing device for wire ropes |
| CN210625653U (en) * | 2019-09-30 | 2020-05-26 | 湖北省港路勘测设计咨询有限公司 | Hydrology observation ship current surveying rope pay-off |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798558A (en) * | 2018-06-27 | 2018-11-13 | 山东大学 | A kind of passive heave compensator of winch type master and its working method |
| CN109059887A (en) * | 2018-08-22 | 2018-12-21 | 中国海洋石油集团有限公司 | A kind of length of semisubmersible drilling platform wellhead column measures system |
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