CN109307584A - A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform - Google Patents
A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform Download PDFInfo
- Publication number
- CN109307584A CN109307584A CN201811433011.3A CN201811433011A CN109307584A CN 109307584 A CN109307584 A CN 109307584A CN 201811433011 A CN201811433011 A CN 201811433011A CN 109307584 A CN109307584 A CN 109307584A
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- China
- Prior art keywords
- marine riser
- platform
- resistance strain
- guide rail
- simulation
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/04—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges
- G01L9/045—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges with electric temperature compensating means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The device of marine riser stress when keeping away platform the invention discloses a kind of simulation deep sea drilling platform.It tests the stress and motion conditions when marine riser moves under water by resistance strain gauge, platform is driven to move using guide rail mould group, marine riser is fixed on platform, marine riser and then moves together while platform moves, rough idea of the marine riser under ocean current is thus simulated, resistance strain gage is sticked on marine riser simultaneously, conducting wire is linked to be the circuit in Fig. 3 and is drawn out to resistance strain gauge.Vibration, which occurs, for marine riser when platform movement drives marine riser movement will cause resistance strain gage deformation, cause resistance variations, and resistance strain gauge analyzes the Vibration Condition of marine riser by collecting increased resistance value.Data are transmitted to electronic computer by resistance strain gauge, are further analyzed by electronic computer.
Description
Technical field
The present invention relates to simulation ocean deepwater drilling platforms to keep away the experiment of platform marine riser stress, belongs to offshore and gas development equipment
Field.
Technical background
Currently, the growth by 50% of World's Oil and Gas Resources is from deep water, in deepwater regions it has been found that 29 more than 500,000,000 barrels
Strategic emphasis is also gradually transferred to deep water hydrocarbon resources exploration by large oil and gas fields, each major oil companies in the whole world, and deep water is
Field is mainly taken over as Global Oil and Gas Resources reserves.However, China is still at an early stage in deepwater drilling technology, phase
Pass technology is thrown away to be monopolized by foreign corporation, especially on marine riser safety control technology.Riser system refers to connection subsea blow out prevention
The key equipment of device and sea drilling platforms is an interface channel under offshore drilling platform to seabed, connects water conservancy diversion thereon
Device, lower even subsea blow out preventer group, due among the seawater, suffered by load and operating condition be extremely complex easy generation thing
Therefore especially when emergency keeps away platform, marine riser needs quick-release, and withdraws with platform movement, easily generation water proof tube failure thing
Therefore.When marine riser emergency keeps away platform, due to being pressed for time, marine riser has little time to recycle, frequently with the mode hung firmly, by marine riser
Suspension belongs to rigid connection on chuck at suspension.Hereafter, platform suspended on marine riser with certain speed, be withdrawn.?
Under the relative motion state of this marine riser and seawater, marine riser stress is huge, easily generation failure accidents, so carrying out corresponding
Simulated experiment become very necessary.
Summary of the invention
The present invention is mainly organically combined using existing product and tool to simulate marine riser stress condition, is provided
One cost is relatively low apparent experimental provision of effect.
Technical solution of the present invention: a kind of simulation drilling platforms keeps away platform device.It is moved using guide rail mould group come control platform,
Pvc pipe simulates marine riser, and resistance strain gauge system collects data, and computer analyzes data.
Guide rail mould group includes guide rail as trunk and provides support, and servo motor provides power and control speed, belt transmitting
Power, gear-box change belt direction.Sliding block moves under belt drive, and sliding block connects a upper platform to fix marine riser.
Wherein guide rail is about 5 meters long using 60 guide rails, attachment apolegamy: 14-14 diaphragm coupling 1,11, lower margin, and servo motor power
For 400W, torque 1.4N M, revolving speed 3000r min, it is M10-7H that marine riser fixed hole diameter, which is 27mm screw hole, on platform.Using
Aluminium alloy is made.
Pvc pipe main body is the PVC pipe of section simulation marine riser, is directly 25mm, and length is 1.5~2.0 meters.Upper face paste
There are resistance strain gage and extraction wire, resistance strain gage is 120-20AA type resistance strain gage.By resistance strain gage according to fig. 2 and
The mode of Fig. 3 pastes.It is fixed using heat-shrink tube.
Resistance strain gauge system includes that resistance strain gauge is used to collect data, and thermal compensation piece module is used to reduce error, lead
Line connects a component.Resistance strain gauge uses dynamic resistance strain instrument.Conducting wire and resistance strain gage junction wire are direct
Then tangle up is fixed with insulating tape, the connection of conducting wire and resistance strain gauge directly leans on plug to connect with jack.
Computer is by control servo motor come control platform movement.And collect what processing analysis resistance strain gauge provided
Data.Two electronic computer difference control platform drive systems and data gathering system, install purchase servo motor and electricity
Hinder the control software of deformeter.Drafting and analysis after also being tested simultaneously to marine riser vibrational image.
The advantage of the invention is that the deformation and stress condition of marine riser are analyzed using high frequency dynamic resistance strain instrument, it is quasi-
It is true and easily manufactured；Large-scale drilling platforms and riser system are minimized, using equivalent experiment thinking and
The method of mathematical analysis reduces cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that deepwater drilling platform keeps away platform simulator；
Fig. 2 is method of attaching schematic diagram of the resistance strain gage on marine riser vertical direction；
Fig. 3 is bonding method schematic diagram of the resistance strain gage on horizontal position；
Fig. 4 is guide rail and analog platform schematic diagram；
Fig. 5 is the schematic diagram of analog platform and sliding block；
Fig. 6 is the connection method schematic diagram of circuit.
In figure: 1- guide rail, 2- simulation drilling platforms, 3- servo motor, 4- computer, 5- resistance strain gauge, 6- temperature are mended
Repay, 7- simulation marine riser, the pond 8-, 9 Trolley cases, 10- resistance strain gage, 11- heat-shrink tube, 12- marine riser fixation hole, 13- it is solid
Determine screw hole, 14- limiter.
Specific embodiment
Embodiment of the present invention is illustrated with reference to the accompanying drawing: as shown in Figure 1, preparing a pond (8), thereon
Face can fix a guide rail mould group, and guide rail mould group is support body by the guide rail (1) for growing 5 meters or so, load onto 400W for one and watch
Taking motor (3) is power and motion control device.Slide unit console module (2) is stuck on guide rail using swallow type tail, with belt with
Trolley case (9) connection of the Trolley case and the other end of servo motor, servo motor (3) drive roller motion, and idler wheel drives skin
Band and then driving Slider platform (2) limiter (14), which are connect in guide rail left end with gear-box, prevents servo motor from damaging.Slide unit
Console module (2) includes that slide unit can be stuck on guide rail, and the analog platform being fixed on slide unit is one block of porose aluminium sheet in centre
The above is the fixed block being welded on aluminium sheet.There are four screw holes on fixed block, screw in stuck pvc pipe by screw.On pvc pipe
A resistance strain gage is respectively pasted on the four direction of diameter, it is one group that conducting wire, which is linked to be the circuit in Fig. 3 and Fig. 6,.And in pvc pipe
N group is pasted on vertical direction.It is connected with conducting wire and connects resistance strain gauge, put one section on sink and simulating marine riser with model
Also resistance strain gage is sticked above pvc pipe also connects resistance strain gauge.Resistance strain gauge connects electronic computer, electronic computer
On install matched software.Another electronic computer connects servo motor and is used to control servo motor.
2 experimental implementations: input on computers needs the parameters such as speed to be simulated when experiment, and computer just controls servo electricity
Machine moves drive belt, and band movable slider (Fig. 4), sliding block move (Fig. 5) to belt together with platform again, the PVC being connected on platform
Pipe moves therewith, has simulated the stress and deformation situation of marine riser in water.Situation is fed back to resistance and answered by resistance strain gage
Become instrument, resistance strain gauge converts it to data and is supplied to computer, we can connect the specific deformation that this understands marine riser and
Stress condition.The Image Rendering of the underwater vortex-induced vibration of marine riser is come out, and carries out next step analysis.
Claims (4)
- The device of marine riser stress when 1. a kind of simulation deepwater drilling platform keeps away platform, it is characterised in that: including guide rail (1), simulation Drilling platforms (2), servo motor (3), computer (4), resistance strain gauge (5), temperature-compensating (6), simulation marine riser (7), water Pond (8), gear-box (9), resistance strain gage (10), heat-shrink tube (11), marine riser fixation hole (12), fixed screw screw hole (13), Limiter (14).
- The device of marine riser stress, feature when 2. a kind of simulation deepwater drilling platform according to claim 1 keeps away platform It is: a large pool (8) is needed to carry out simulating ocean environment, guide rail (1) is mounted on above sink, the left side on guide rail (1) A upper limiter (14) is blocked at end, and the limiter left side is the Trolley case (9) for having screw fixed, and there are one utilize swallow type on guide rail Tail is stuck in drilling platforms of the sliding block (2) on guide rail as simulation；It is the servo motor (3) as power device on the right of guide rail, Servo motor (3) is also connected using screw and guide rail, and both sides and sliding block (2) are connected by belt；Servo motor directly connects Resistance strain gage is glued with glue according to figure (2) figure (3) and is connected conducting wire then to use by upper electronic computer, pvc pipe (7) Heat-shrink tube (11) fixes these；It, then will fixed spiral shell by the fixation hole (12) that pvc pipe (7) insertion Slider platform (2) is intermediate Silk screws in from the fixed screw holes (12) and fixes pvc pipe (7), in addition also need in the sink one section and simulation marine riser it is same For the pvc pipe of money as temperature-compensating (6), the resistance data for simulating tubing, which is remitted, is transmitted to electronics further through conducting wire after resistance strain gauge Computer (10) carries out summarizing and analyzing for data by electronic computer.
- The device of marine riser stress when 3. a kind of simulation deepwater drilling platform keeps away platform according to claim 1, it is characterised in that: The Vibration Condition of simulation marine riser (7) is collected using resistance strain gauge (5).
- The device of marine riser stress when 4. a kind of simulation deepwater drilling platform keeps away platform according to claim 1, it is characterised in that: Temperature-compensating (6) are added, have reduced influence of the other factors such as temperature to experimental precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433011.3A CN109307584A (en) | 2018-11-28 | 2018-11-28 | A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433011.3A CN109307584A (en) | 2018-11-28 | 2018-11-28 | A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform |
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| CN109307584A true CN109307584A (en) | 2019-02-05 |
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| CN201811433011.3A Pending CN109307584A (en) | 2018-11-28 | 2018-11-28 | A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186645A (en) * | 2019-06-17 | 2019-08-30 | 中国海洋石油集团有限公司 | A kind of anti-drilling water-separation pipe floating drum region load test experimental rig of deep water |
| CN111188597A (en) * | 2019-12-31 | 2020-05-22 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN114183123A (en) * | 2021-12-16 | 2022-03-15 | 中国石油大学(北京) | Drilling simulation experiment device and experiment method |
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Patent Citations (4)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186645A (en) * | 2019-06-17 | 2019-08-30 | 中国海洋石油集团有限公司 | A kind of anti-drilling water-separation pipe floating drum region load test experimental rig of deep water |
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| CN111188597B (en) * | 2019-12-31 | 2022-03-15 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN114183123A (en) * | 2021-12-16 | 2022-03-15 | 中国石油大学(北京) | Drilling simulation experiment device and experiment method |
| CN114183123B (en) * | 2021-12-16 | 2024-01-30 | 中国石油大学(北京) | Drilling simulation experiment device and experiment method |
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Application publication date: 20190205 |