CN104864906A - Offshore oil and gas subsea equipment weight measurement and center of gravity detection method - Google Patents
Offshore oil and gas subsea equipment weight measurement and center of gravity detection method Download PDFInfo
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- CN104864906A CN104864906A CN201510130628.8A CN201510130628A CN104864906A CN 104864906 A CN104864906 A CN 104864906A CN 201510130628 A CN201510130628 A CN 201510130628A CN 104864906 A CN104864906 A CN 104864906A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses an offshore oil and gas subsea equipment weight measurement and center of gravity detection method. The method includes the following steps that: a plane for carrying offshore oil and gas subsea equipment is adopted as a reference plane, and an O-XY coordinate system is established; N stress points are selected on the reference plane, and the coordinates of the N stress points are (Xi, Yi) respectively, wherein i and N satisfy the expression that 1<=i<=N, and N>=3; N hydraulic jacks are adopted to jack the offshore oil and gas subsea equipment, and a weight sensor is arranged on the N stress points respectively, and the readings Wi of the N weight sensors are read; and the actual weight W0 and the actual center of gravity G (X0, Y0) of the offshore oil and gas subsea equipment are calculated according to the coordinates (Xi, Yi) of the N stress points and the readings Wi of the N weight sensors, wherein W0, X0 and Y0 can be calculated through formulas mentioned in the descriptions. With the offshore oil and gas subsea equipment weight measurement and center of gravity detection method adopted, the actual weight and the actual center of gravity of the offshore oil and gas subsea equipment can be calculated fast and conveniently, and the accuracy of hoisting calculation and analysis can be improved; and the auxiliary measuring devices are adopted, and therefore, the structure of the offshore oil and gas subsea equipment can be light.
Description
Technical field
The present invention relates to marine oil and gas subsea equipment debugging field, particularly relate to the weight measurement of a kind of marine oil and gas subsea equipment and center of gravity detection method.
Background technology
Be under the background not at global oil price, deep-sea oil gas exploratory development has become new oil development focus in China.Along with the increase of China's exploitation of offshore oil and gas depth of water, increasing marine oil and gas subsea equipment, as deep water basal disc, deep water manifold etc., is applied in deep-sea oil gas exploratory development; As SSIV basal disc and the SSIV basal disc of SUTA, PY34-1 project, the manifold etc. of LH4-1 and LH19-5 of LIWAN3-1 project.Along with the increase of the oil and gas development depth of water, more and more higher to the lifting requirements of each drilling outfit, simultaneously also more and more higher to the requirement of marine oil and gas subsea equipment weight and gravity's center control.Its reason is: when the installation of marine oil and gas subsea equipment, the physical dimension that marine oil and gas subsea equipment is huge and quality propose acid test to the hoisting transportation of marine oil and gas subsea equipment and installation under water, if in hoisting process, the center of gravity drift of marine oil and gas subsea equipment, to have a strong impact on carrying out smoothly of the water-bed fixed operation of marine oil and gas subsea equipment, what be unfavorable for that marine oil and gas subsea equipment installs under water carries out smoothly.
When existing marine oil and gas subsea equipment is installed, adopt offshore lifting computational analysis to be calculate based on modeling weight to be calculated by software modeling and modeling center of gravity (i.e. theoretical weight and theoretical center of gravity), the quality of modeling quality directly will affect the whether rational direct factor of the lifting such as offshore lifting computational analysis and lockset cooperation preliminary work.The weight of existing marine oil and gas subsea equipment and center of gravity are based on software modeling, model and physical variance large time, marine oil and gas subsea equipment actual weight and theoretical weight, actual center gravity and theoretical center of gravity deviation will be caused comparatively large, and then the accuracy of impact lifting computational analysis.The heavy control techniques of marine oil and gas subsea equipment is there is not in prior art, with the actual weight of Measuring Oceanic oil gas subsea equipment and actual center gravity, in oil and gas development process, heavy control techniques is mainly used in jacket, organize on the large structure such as fast, there is not the Weight control scheme to small underwater works such as marine oil and gas subsea equipments.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, provides the weight measurement of a kind of marine oil and gas subsea equipment and center of gravity detection method.
The technical solution adopted for the present invention to solve the technical problems is: the weight measurement of a kind of marine oil and gas subsea equipment and center of gravity detection method, comprise the steps:
S1: to place the plane of marine oil and gas subsea equipment for reference plane, set up O-XY coordinate system;
S2: select N number of stress point on described reference plane, the coordinate of N number of stress point is respectively (Xi, Yi), wherein, 1≤i≤N, N >=3;
S3: adopt N number of hydraulic jack by described marine oil and gas subsea equipment jack-up, and respectively a weight sensor is placed on N number of stress point, read the reading Wi of N number of weight sensor respectively;
S4: the actual weight W0 and the actual center gravity G (X0, Y0) that calculate described marine oil and gas subsea equipment according to the coordinate of the N number of stress point reading Wi that is (Xi, Yi) and N number of weight sensor respectively, wherein,
Preferably, also comprise step S5: again on described reference plane, select N number of stress point, repeat step S2 ~ step S4, by the actual weight W0 of described marine oil and gas subsea equipment that repeatedly calculates and actual center gravity G (X0, Y0) mean value is as final actual weight W and actual center gravity G (X, Y).
Preferably, in described step S5, when again selecting N number of stress point on described reference plane, the spacing between N number of stress point is increased.
Preferably, 4 stress points are set, rectangular distribution in described step S2.
Preferably, described step S3 comprises:
S31: adopt N number of hydraulic jack by described marine oil and gas subsea equipment jack-up, and at the corresponding placement one in described N number of stress point position weight sensor;
S32: adjust described weight sensor, is in same level to make N number of described weight sensor;
S33: discharge described hydraulic jack, makes marine oil and gas subsea equipment be placed on N number of described weight sensor, reads the reading Wi of N number of weight sensor respectively.
Preferably, in step S32, adopt total powerstation to adjust described weight sensor, be in same level to make N number of described weight sensor.
Preferably, described weight sensor to be measurement range the be weighbridge formula gravity sensor of 0 ~ 50 ton
Preferably, also comprise step S6: compared with theoretical weight and theoretical center of gravity respectively by the actual weight W0 of described marine oil and gas subsea equipment and actual center gravity G (X0, Y0), to revise theoretical weight and theoretical center of gravity.
Preferably, described marine oil and gas subsea equipment comprises deep water basal disc, and described deep water basal disc comprises mud mat and is arranged on the protect-ing frame structure above described mud mat.
The present invention compared with prior art tool has the following advantages: implement marine oil and gas subsea equipment provided by the present invention weight measurement and center of gravity detection method, actual weight and the actual center gravity of marine oil and gas subsea equipment can be calculated quickly and easily, improve the accuracy of lifting computational analysis.In the present invention, adopt hydraulic jack by marine oil and gas subsea equipment jack-up, and adopt weight sensor to carry out calculating the weight of marine oil and gas subsea equipment, portable construction, does not rely on the subsidiary equipment such as large-scale crane.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the process flow diagram of the weight measurement of marine oil and gas subsea equipment and center of gravity detection method in one embodiment of the invention.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Fig. 1 illustrates the process flow diagram of the weight measurement of marine oil and gas subsea equipment and center of gravity detection method in one embodiment of the invention.In the present embodiment, marine oil and gas subsea equipment is deep water basal disc, and this deep water basal disc comprises mud mat and is arranged on the protect-ing frame structure above mud mat.When Attention problems installed by marine oil and gas subsea equipment (i.e. deep water basal disc), first mud mat need be installed, then connect seabed respectively twice at basal disc pipeline
After SPOOL, mud mat installs two guideposts, protect-ing frame structure is slid onto mud mat; in the installation process of mud mat and protect-ing frame structure; both centroid align-ment need be made, otherwise cannot install smoothly, therefore need to carry out weight measurement and center of gravity detection to mud mat and protect-ing frame structure respectively.
As shown in Figure 1, (the i.e. deep water basal disc) weight measurement of this marine oil and gas subsea equipment and center of gravity detection method comprise the following steps:
S1: to place the plane of deep water basal disc for reference plane, set up O-XY coordinate system.
S2: select N number of stress point on reference plane, the coordinate of N number of stress point is respectively (Xi, Yi), wherein, 1≤i≤N, N >=3.In the present embodiment; the number of stress point N is 4; 4 rectangular distributions of stress point; in the present embodiment; 4 stress points are all arranged on the mud mat of deep water basal disc or the below of protect-ing frame structure; adopt total powerstation to carry out levelness adjustment to 4 stress points, to ensure that 4 stress points are in same level, thus ensure the accuracy of weight measurement and center of gravity measuring and calculating.Understandably, the selection of N number of stress point is more, and it is more accurate that its weight measurement and center of gravity are calculated.The placement of N number of stress point is regular figure as far as possible, to facilitate calculating.Understandably, if the out-of-shape of marine oil and gas subsea equipment, the position of stress point can be set voluntarily, if desired, special auxiliary stand can be set, to ensure that irregular marine oil and gas subsea equipment also can conveniently weigh.
S3: adopt N number of hydraulic jack by marine oil and gas subsea equipment jack-up, and respectively a weight sensor is placed on N number of stress point, read the reading Wi of N number of weight sensor respectively.In the present embodiment, in the weight measurement of deep water basal disc and center of gravity testing process, weight and the center of gravity of mud mat and protect-ing frame structure need be detected respectively.
Particularly, step S3 comprises the steps:
S31: adopt N number of hydraulic jack by the mud mat of deep water basal disc or protect-ing frame structure jack-up, and at the corresponding placement one in N number of stress point position weight sensor.Particularly, weight sensor to be measurement range the be weighbridge formula gravity sensor of 0 ~ 50 ton, 4 weighbridge formula gravity sensors can measure the deep water basal disc of 0 ~ 200 ton, the configuration of 4 weighbridge formula gravity sensors is more succinct, efficient by the weighing of deep water basal disc larger for weight, and scope of weighing is large, has obvious advantage.Near each weighbridge formula gravity sensor, adopt a hydraulic jack by the mud mat of deep water basal disc or protect-ing frame structure jack-up, weigh simple operation, can complete at the build the side of deep water basal disc, without the need to the large-scale crane using price high; Also will not be transported to Weight Station and measure by deep water basal disc, simple to operate, economical and practical.
S32: adjustment weight sensor, to make N number of weight sensor be in same level, to ensure the accuracy of weight measurement and center of gravity measuring and calculating.Particularly, adopt the position of total powerstation adjustment weight sensor, be in same level to make 4 weight sensors.
S33: release hydraulic jack, makes the mud mat of deep water basal disc or protect-ing frame structure be placed on N number of weight sensor, read the reading Wi of N number of weight sensor respectively, with a weight measurement of the mud mat or protect-ing frame structure that complete deep water basal disc.
Understandably, be the accuracy of protection weight measurement, repeated execution of steps S31 ~ S33 for several times, using the mean value of the reading Wi of weight sensor that reads for several times as the final measurement result of this weight sensor.Particularly; namely after step S33; adopt hydraulic jack by the mud mat of deep water basal disc or protect-ing frame structure jack-up; after the reading of 4 weight sensors is reset; again discharge hydraulic jack; the mud mat of deep water basal disc or protect-ing frame structure are placed on 4 weight sensors, again read the reading of 4 weight sensors, complete the second time weight measurement of deep water basal disc mud mat or protect-ing frame structure.This step, to after the reading monastic rule for Buddhists of 4 weight sensors, uses total powerstation to adjust its position without the need to twice, can ensure that it is in same level.Understandably; when using hydraulic jack by the mud mat of deep water basal disc or protect-ing frame structure jack-up; can the position of each weight sensor of corresponding adjustment; and adopt total powerstation to be adjusted in same level by each weight sensor; again read the reading of 4 weight sensors; using the mean value that measures for several times the reading Wi of weight sensor as the final measurement result of this weight sensor, to improve the accuracy of weight measurement and center of gravity measuring and calculating.
S4: the actual weight W0 and the actual center gravity G (X0, Y0) that according to the coordinate of N number of stress point are the reading Wi calculating deep water basal disc of (Xi, Yi) and N number of weight sensor respectively, wherein,
Understandably, the mean value of the reading Wi of the weight sensor in the present embodiment, at least 3 times of 4 weight sensors calculated as final weight sensor reading Wi and calculate, its weight measurement and center of gravity results of measuring are more accurate, with carrying out smoothly of ensureing that deep water basal disc lifts.
Understandably; step S1 ~ step S4 accurately can know actual weight W0 and the actual center gravity G (X0 of deep water basal disc; Y0); that deep water basal disc can be protected to a certain extent to lift carries out smoothly; and the method weighing results adopting the weight measurement that provides of this method and center of gravity to detect is accurate, more can the real weight of feedback arrangement than modeling software.
S5: again select N number of stress point on reference plane, repeat step S2 ~ step S4, by the actual weight W0 of deep water basal disc that repeatedly calculates and actual center gravity G (X0, Y0) mean value is as final actual weight W and actual center gravity G (X, Y), to improve the accuracy of the weight measurement of deep water basal disc and weight measuring and calculating further.
S6: compared with theoretical weight and theoretical center of gravity respectively by the actual weight W0 of deep water basal disc and actual center gravity G (X0, Y0), to revise theoretical weight and theoretical center of gravity, to improve the accuracy of structural modeling.
Implement deep water basal disc provided by the present invention weight measurement and center of gravity detection method, actual weight and the actual center gravity of deep water basal disc can be calculated quickly and easily, improve the accuracy of lifting computational analysis.In the present invention, adopt hydraulic jack by deep water basal disc jack-up, and adopt weight sensor to carry out calculating the weight of deep water basal disc, portable construction, does not rely on the subsidiary equipment such as large-scale crane.
The present invention is described by a specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to substituting to the present invention.In addition, for particular condition or concrete condition, various amendment can be made to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments fallen within the scope of the claims in the present invention.
Claims (9)
1. the weight measurement of marine oil and gas subsea equipment and a center of gravity detection method, is characterized in that, comprise the steps:
S1: to place the plane of marine oil and gas subsea equipment for reference plane, set up O-XY coordinate system;
S2: select N number of stress point on described reference plane, the coordinate of N number of stress point is respectively (Xi, Yi), wherein, 1≤i≤N, N >=3;
S3: adopt N number of hydraulic jack by described marine oil and gas subsea equipment jack-up, and respectively a weight sensor is placed on N number of stress point, read the reading Wi of N number of weight sensor respectively;
S4: the actual weight W0 and the actual center gravity G (X0, Y0) that calculate described marine oil and gas subsea equipment according to the coordinate of the N number of stress point reading Wi that is (Xi, Yi) and N number of weight sensor respectively, wherein,
2. marine oil and gas subsea equipment according to claim 1 weight measurement and center of gravity detection method, it is characterized in that, also comprise step S5: again on described reference plane, select N number of stress point, repeat step S2 ~ step S4, by the actual weight W0 of described marine oil and gas subsea equipment that repeatedly calculates and actual center gravity G (X0, Y0) mean value is as final actual weight W and actual center gravity G (X, Y).
3. marine oil and gas subsea equipment according to claim 2 weight measurement and center of gravity detection method, is characterized in that, in described step S5, when again selecting N number of stress point on described reference plane, the spacing between N number of stress point increased.
4. marine oil and gas subsea equipment according to claim 1 weight measurement and center of gravity detection method, is characterized in that, arranges 4 stress points, rectangular distribution in described step S2.
5. marine oil and gas subsea equipment according to claim 1 weight measurement and center of gravity detection method, is characterized in that, described step S3 comprises:
S31: adopt N number of hydraulic jack by described marine oil and gas subsea equipment jack-up, and at the corresponding placement one in described N number of stress point position weight sensor;
S32: adjust described weight sensor, is in same level to make N number of described weight sensor;
S33: discharge described hydraulic jack, makes marine oil and gas subsea equipment be placed on N number of described weight sensor, reads the reading Wi of N number of weight sensor respectively.
6. marine oil and gas subsea equipment according to claim 5 weight measurement and center of gravity detection method, is characterized in that, adopts total powerstation to adjust described weight sensor in step S32, is in same level to make N number of described weight sensor.
7. marine oil and gas subsea equipment according to claim 1 weight measurement and center of gravity detection method, is characterized in that, described weight sensor to be measurement range the be weighbridge formula gravity sensor of 0 ~ 50 ton
8. the marine oil and gas subsea equipment weight measurement according to any one of claim 1-7 and center of gravity detection method, it is characterized in that, also comprise step S6: by the actual weight W0 of described marine oil and gas subsea equipment and actual center gravity G (X0, Y0) compare with theoretical weight and theoretical center of gravity respectively, to revise theoretical weight and theoretical center of gravity.
9. marine oil and gas subsea equipment according to claim 8 weight measurement and center of gravity detection method; it is characterized in that; described marine oil and gas subsea equipment comprises deep water basal disc, and described deep water basal disc comprises mud mat and is arranged on the protect-ing frame structure above described mud mat.
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| CN201510130628.8A CN104864906A (en) | 2015-03-24 | 2015-03-24 | Offshore oil and gas subsea equipment weight measurement and center of gravity detection method |
| PCT/CN2015/095811 WO2016150184A1 (en) | 2015-03-24 | 2015-11-27 | Method for measuring weight and center of gravity of offshore oil and gas underwater device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716789A (en) * | 2016-05-09 | 2016-06-29 | 蓬莱巨涛海洋工程重工有限公司 | Mass center detection device and method of ocean module member |
| WO2016150184A1 (en) * | 2015-03-24 | 2016-09-29 | 深圳海油工程水下技术有限公司 | Method for measuring weight and center of gravity of offshore oil and gas underwater device |
| CN110608844A (en) * | 2019-07-02 | 2019-12-24 | 蚌埠学院 | Piping lane module focus detecting system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485872A (en) * | 2022-01-26 | 2022-05-13 | 中船黄埔文冲船舶有限公司 | Hovercraft weighing device and weighing calculation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003040667A1 (en) * | 2001-11-08 | 2003-05-15 | Kvaerner Warnow Werft Gmbh | Measuring method and measuring device for measuring the mass and/or the center of gravity of a component |
| CN2713448Y (en) * | 2004-03-04 | 2005-07-27 | 甘肃省科学院传感技术研究所 | Weight and gravity center measurement device for plane |
| CN101000261A (en) * | 2006-12-28 | 2007-07-18 | 大连船舶重工集团有限公司 | Weighting method of large cantilever structure |
| CN103278229A (en) * | 2013-05-20 | 2013-09-04 | 天利航空科技深圳有限公司 | Helicopter weighing measurer and helicopter gravity core measuring method |
| CN103439083A (en) * | 2013-08-30 | 2013-12-11 | 西北工业大学 | Balance weight test table for revolution body underwater vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132670A (en) * | 1982-12-21 | 1984-07-11 | Sedco Inc | Installation and levelling of subsea templates |
| CN201100120Y (en) * | 2007-11-02 | 2008-08-13 | 中国海洋石油总公司 | Drilling well under-ship immersion under-water drilling well base tray for boundary oil gas field |
| CN101424175B (en) * | 2007-11-02 | 2012-04-25 | 中国海洋石油总公司 | Hoisting system for underwater drilling basal disc |
| CN201359547Y (en) * | 2009-02-27 | 2009-12-09 | 西安信通控制系统有限责任公司 | Gravity center testing system for drilling platform |
| CN202038441U (en) * | 2011-03-17 | 2011-11-16 | 哈尔滨工程大学 | Gravity center adjusting device of underwater robot |
| CN102632978B (en) * | 2012-05-09 | 2014-05-14 | 北京理工大学 | Center-of-gravity regulating device applied to underwater robotic dolphin |
| CN103090945A (en) * | 2013-01-29 | 2013-05-08 | 大连中远船务工程有限公司 | Weighing method and independent weighing units of large ocean function module |
| CN104864906A (en) * | 2015-03-24 | 2015-08-26 | 深圳海油工程水下技术有限公司 | Offshore oil and gas subsea equipment weight measurement and center of gravity detection method |
-
2015
- 2015-03-24 CN CN201510130628.8A patent/CN104864906A/en active Pending
- 2015-11-27 WO PCT/CN2015/095811 patent/WO2016150184A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003040667A1 (en) * | 2001-11-08 | 2003-05-15 | Kvaerner Warnow Werft Gmbh | Measuring method and measuring device for measuring the mass and/or the center of gravity of a component |
| CN2713448Y (en) * | 2004-03-04 | 2005-07-27 | 甘肃省科学院传感技术研究所 | Weight and gravity center measurement device for plane |
| CN101000261A (en) * | 2006-12-28 | 2007-07-18 | 大连船舶重工集团有限公司 | Weighting method of large cantilever structure |
| CN103278229A (en) * | 2013-05-20 | 2013-09-04 | 天利航空科技深圳有限公司 | Helicopter weighing measurer and helicopter gravity core measuring method |
| CN103439083A (en) * | 2013-08-30 | 2013-12-11 | 西北工业大学 | Balance weight test table for revolution body underwater vehicle |
Non-Patent Citations (3)
| Title |
|---|
| 《海洋石油工程设计指南》编委会: "《海洋石油工程深水油气田开发技术 第12册》", 30 April 2011 * |
| 张天米，朱丽青: ""一种新型鱼雷衡重设备及测量方法"", 《鱼雷技术》 * |
| 白勇等: "《水下生产系统手册》", 30 April 2012 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150184A1 (en) * | 2015-03-24 | 2016-09-29 | 深圳海油工程水下技术有限公司 | Method for measuring weight and center of gravity of offshore oil and gas underwater device |
| CN105716789A (en) * | 2016-05-09 | 2016-06-29 | 蓬莱巨涛海洋工程重工有限公司 | Mass center detection device and method of ocean module member |
| CN110608844A (en) * | 2019-07-02 | 2019-12-24 | 蚌埠学院 | Piping lane module focus detecting system |
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| Publication number | Publication date |
|---|---|
| WO2016150184A1 (en) | 2016-09-29 |
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Application publication date: 20150826 |