CN203550922U - Air gap measuring device for self-elevating drilling platform - Google Patents
Air gap measuring device for self-elevating drilling platform Download PDFInfo
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- CN203550922U CN203550922U CN201320646226.XU CN201320646226U CN203550922U CN 203550922 U CN203550922 U CN 203550922U CN 201320646226 U CN201320646226 U CN 201320646226U CN 203550922 U CN203550922 U CN 203550922U
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- air gap
- sounding rod
- measurement
- throw
- type pressure
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Abstract
The utility model discloses an air gap measuring device for a self-elevating drilling platform. The air gap measuring device comprises a measuring rod, the internal of the measuring rod is a cavity, a lower segment of the measuring rod is provided with a plurality of damping holes distributed along the length direction, and the damping holes are communicated with the cavity of the measuring rod; and a lower end of the cavity is provided with a throw-in type pressure sensor, and leads of the throw-in type pressure sensor pass through an upper end of the measuring rod. A digital measuring means is used for the air gap measuring device, operation is simple, the air gap measuring device is less influenced by stormy waves, and the air gap can be measured in real time. The throw-in type pressure sensor is used for the air gap measuring device, measurement is carried out by utilization of corresponding relationship of water depth and pressure, the air gap measuring device cannot be influenced by water transmission like an optical measuring instrument and cannot be interfered by platform sidewalls like ultrasonic measurement, and therefore the measuring result is more accurate.
Description
Technical field
The utility model relates to offshore oil drilling platform, is specifically related to a kind of measurement of air gap device of jack up offshore oil drilling platform.
Background technology
Jack up offshore oil drilling platform, in pitching pile process in place, need to repeatedly be measured air gap, and so-called air gap refers to the distance of off sea of platform bottom.Measuring air gap is now generally to measure roughly with tape measure, exist deviation large, be subject to the shortcomings such as Lidar Equation is large, and reading is also not too convenient, especially when night time operation.Other digitized measurement means, as infrared ray, laser measurement etc., owing to being subject to the transmission effect of water, cannot be used.
Such as Chinese utility model patent CN202661227U discloses self-elevating platform (SEP) balance and spud leg driving depth real-time detection apparatus, comprise several tooth sensors, ultrasound wave water depth sensor, ultrasound wave air gap sensor, double-shaft tilt angle sensor, platform-specific Dynamic Data Acquiring terminal, center acquisition terminal, database server, display device, described several tooth sensor is arranged on platform leg gear rack lifting system gear shaft assembly place, described ultrasound wave water depth sensor is arranged on platform hull bottom, concordant with hull bottom; Described ultrasound wave air gap installation of sensors is on helicopter platform outward flange fence; Described double-shaft tilt angle sensor is directly installed on measuring table change of pitch angle on ocean platform fixed surface; Described platform-specific Dynamic Data Acquiring terminal is connected with each sensor can be wired or wireless, receives signal and transmit by the mode of ZigBee wireless self-networking; Described center acquisition terminal receives wireless signal transmission, and signal is transferred to database server stores and processing, by detecting software, on display device, self-elevating platform (SEP) balance and spud leg driving depth is carried out to real-time digitization detection display.
The prior art adopts ultrasound wave air gap sensor to measure in real time to the height of the water surface platform.But because ultrasonic sensor must be arranged on, can not be subject to the place that spud leg, mesa sidewalls etc. are interfered, otherwise be difficult to obtain measurement result accurately.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of convenient and practical, measure self-elevating drilling platform measurement of air gap device accurately, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, be, the utility model adopts following technical scheme: a kind of self-elevating drilling platform measurement of air gap device, comprise a sounding rod, the inside of sounding rod is cavity, the hypomere of sounding rod is provided with a plurality of damping holes that distribute along its length, described damping hole communicates with the cavity of sounding rod, is provided with a throw-in type pressure transducer in the lower end of described cavity, and the wire of throw-in type pressure transducer passes from the upper end of sounding rod.
Preferably, the wire of described throw-in type pressure transducer is connected with data processing and display device.
Preferably, be provided with the lower end of cavity described in a blind plate shutoff, described throw-in type pressure transducer is positioned at the position of the top certain distance of blind plate, prevents the deposition of silt etc., and impact is measured.
Preferably, described sounding rod consists of stainless-steel tube.
Further, described sounding rod is connected and composed by threaded connector by multistage stainless-steel tube.
Preferably, on described sounding rod, be also provided with fixed support.
Further, on described sounding rod, be also fixed with a magnet.
Further, described sounding rod is fixedly mounted on the sidewall of self-elevating drilling platform by fixed support.
Compared with prior art, the utlity model has following beneficial effect: the utility model utilizes throw-in type pressure transducer can measure easily sounding rod lower end and inserts the degree of depth under water, and according to the height of sounding rod and length and drilling platform self, can calculate drilling platform bottom to the distance (air gap) of the water surface.The utility model adopts digitized measurement means, easy and simple to handle, is subject to Lidar Equation less, can measure in real time air gap.The utility model adopts throw-in type pressure transducer, utilize the corresponding relation of the depth of water and pressure to measure, the transmission function influence that can not be subject to water as infrared ray or laser sensor etc. can not be used substantially, also can as ultrasonic measurement, not be subject to the interference of mesa sidewalls and cause gross error, so measurement result is more accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model self-elevating drilling platform measurement of air gap device.
Fig. 2 is the partial enlarged drawing of sounding rod hypomere.
Fig. 3 is measuring principle schematic diagram of the present utility model.
In figure: 1, sounding rod 2, throw-in type pressure transducer
3, data processing and display device 4, self-elevating drilling platform
10, cavity 11, damping hole
12, blind plate 13, threaded connector
14, fixed support 15, magnet
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, those skilled in the art can more clearly understand other advantages of the present utility model and effect thus.
It should be noted that the structure that Figure of description illustrates, ratio, size etc. only in order to coordinate embodiment, more clearly understand design of the present utility model for those skilled in the art, not in order to limit protection domain of the present utility model.The adjustment of the modification of any structure, the change of proportionate relationship or size, in the situation that not affecting effect of the present utility model and object and reaching, within all should still dropping on protection domain of the present utility model.
As shown in Figure 1 and Figure 2, a kind of self-elevating drilling platform measurement of air gap of the utility model device comprises a sounding rod 1, the inside of sounding rod 1 is cavity 10, the hypomere of sounding rod 1 is provided with a plurality of damping holes 11 that distribute along its length, damping hole 11 communicates with the cavity 10 of sounding rod, in the lower end of described cavity 10, be provided with a throw-in type pressure transducer 2, the wire of throw-in type pressure transducer 2 passes from the upper end of sounding rod 1.Above-mentioned sounding rod 1 is is preferably connected and composed by threaded connector 13 by multistage stainless-steel tube, when measuring range variation, can increase at any time one section, and range extension meanwhile, is convenient to harvesting no time.
The utility model in use, can sounding rod 1 be fixed on the sidewall of self-elevating drilling platform 4 by fixed support 14, insert below the water surface lower end of sounding rod 1, throw-in type pressure transducer 2 is also positioned at below the water surface, and the wire of throw-in type pressure transducer 2 passes and is connected with data processing and display device 3 platform from the upper end of sounding rod 1.Fixed support 14 can be fixed on the railing of platform, is main fixing means.On sounding rod 1, can also be fixed with a magnet 15, magnet 15 can be adsorbed on the sidewall of self-elevating drilling platform 4, plays the effect of auxiliary fixation measuring bar 1.When stormy waves is large, consider the direction of stormy waves, preferably sounding rod 1 is fixed on to the side in face of stormy waves, make magnet can be subject to the pressure producing because of stormy waves, adsorb more firmly.But in the situation that stormy waves is little, sounding rod 1 can be arranged on to the either side of self-elevating drilling platform 4, even magnet 15 can not installed yet.
In a preferred embodiment of the present utility model, a blind plate 12 is set in the lower end of sounding rod 1, with the lower end of cavity described in shutoff 10, and throw-in type pressure transducer 2 is enclosed in to the position of the top certain distance of blind plate 12, prevents from affecting measurement because of sedimentation.Blind plate 12 can stop wave the impact of sensor to be caused to possible becoming flexible, and also can eliminate the measuring error that wave stroke causes simultaneously.
In addition, when measuring, because wave is subject to spud leg obstacle, can evoke a lot of assorted waves, if these assorted waves do not carry out damping processing, by making throw-in type pressure transducer 2 measure the data of many saltus steps, cause the untrue of data, inaccurate.Therefore, the utility model arranges damping hole 11 at the hypomere of sounding rod 1, and these damping holes 11 are generally positioned under water, both the pressure of water can be passed to the throw-in type pressure transducer 2 of sounding rod 1 inside, can play damping action to unrestrained fluctuating again, reduce and impact the transient data saltus step causing.
Below measuring principle of the present utility model is described.
As shown in Figure 3, when the lower end of sounding rod 1, with vertical state, insert the water surface when following, the length Hr of whole sounding rod 1 is known; The moldeed depth of self-elevating drilling platform 4 or action Hx are also known; The length Hu that sounding rod 1 is positioned on platform deck also can certainly, also can arrange a zero point easily by measuring on sounding rod 1, makes zero point concordant with deck plane, i.e. Hu=0 while installing at every turn.
The Underwater Pressure signal that throw-in type pressure transducer 2 can sense it is delivered to data processing and display device 3, when carrying out data processing, revise pressure that density of sea water causes and the corresponding relation of the depth of water, thereby can obtain the underwater length Hs of sounding rod according to the force value of throw-in type pressure transducer 2.
According to the length Hs under water recording in real time, can calculate in real time air gap Hg=Hr-Hu-Hx-Hs so.
Data processing and display device 3 collect after Underwater Pressure signal, by software, process, and can show mxm., and minimum, and intermediate value also can curve show the real time data of air gap.
The utility model, for the needs of self-elevating drilling platform measurement of air gap, has organically combined ruler measurement and pressure transducer and has measured both advantages, makes measurement data more accurate, and whole measurement mechanism is reliable and stable, convenient and practical.The utility model not only can be for the measurement of self-elevating drilling platform air gap, also can be used for measuring SEA LEVEL VARIATION in rivers and lakes, owing to having adopted digitized measurement means, also can teletransmission data, and realize remote monitoring.
Claims (8)
1. a self-elevating drilling platform measurement of air gap device, it is characterized in that, comprise a sounding rod (1), the inside of sounding rod (1) is cavity (10), the hypomere of sounding rod (1) is provided with a plurality of damping holes (11) that distribute along its length, described damping hole (11) communicates with the cavity (10) of sounding rod (1), in the lower end of described cavity (10), is provided with a throw-in type pressure transducer (2), and the wire of throw-in type pressure transducer (2) passes from the upper end of sounding rod (1).
2. measurement of air gap device according to claim 1, is characterized in that, the wire of described throw-in type pressure transducer (2) is connected with data processing and display device (3).
3. measurement of air gap device according to claim 1, is characterized in that, is provided with the lower end of cavity (10) described in a blind plate (12) shutoff, and described throw-in type pressure transducer (2) is positioned at the top of blind plate (12).
4. measurement of air gap device according to claim 1, is characterized in that, described sounding rod (1) consists of stainless-steel tube.
5. measurement of air gap device according to claim 4, is characterized in that, described sounding rod (1) is connected and composed by threaded connector (13) by multistage stainless-steel tube.
6. measurement of air gap device according to claim 1, is characterized in that, is also provided with fixed support (14) on described sounding rod (1).
7. measurement of air gap device according to claim 6, is characterized in that, is also fixed with a magnet (15) on described sounding rod (1).
8. measurement of air gap device according to claim 6, is characterized in that, described sounding rod (1) is fixedly mounted on the sidewall of self-elevating drilling platform (4) by fixed support (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646226.XU CN203550922U (en) | 2013-10-18 | 2013-10-18 | Air gap measuring device for self-elevating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646226.XU CN203550922U (en) | 2013-10-18 | 2013-10-18 | Air gap measuring device for self-elevating drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550922U true CN203550922U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320646226.XU Expired - Fee Related CN203550922U (en) | 2013-10-18 | 2013-10-18 | Air gap measuring device for self-elevating drilling platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141330A (en) * | 2018-10-24 | 2019-01-04 | 中船黄埔文冲船舶有限公司 | A kind of measurement of air gap device and measurement method |
-
2013
- 2013-10-18 CN CN201320646226.XU patent/CN203550922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141330A (en) * | 2018-10-24 | 2019-01-04 | 中船黄埔文冲船舶有限公司 | A kind of measurement of air gap device and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151020 Address after: 100728 No. 22 North Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Shanghai Chinese Academy of Engineering of marine oil office of SINOPEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161018 |