CN208536822U - Based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device - Google Patents
Based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device Download PDFInfo
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- CN208536822U CN208536822U CN201821278802.9U CN201821278802U CN208536822U CN 208536822 U CN208536822 U CN 208536822U CN 201821278802 U CN201821278802 U CN 201821278802U CN 208536822 U CN208536822 U CN 208536822U
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Abstract
The utility model relates to one kind to be based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, the device includes at least three dip measuring devices, signal condition and pretreatment unit, data acquisition unit and computer, wherein, all dip measuring devices are fixed on hull at equal intervals along the hull direction of observation vessel, and all dip measuring devices are arranged along the height such as same straight line.The utility model will be difficult to liquid-column height measured directly and be converted into three inclination angle measurements, this process need to only measure blowout fluid column high point angle, it is not required to measure platform actual range, reduce and is measured to laser pulse instrument apart from bring environmental error because of severe sea condition, overcome direct range measurement affected by environment big, the serious drawback of error.
Description
Technical field
The utility model is to be related to about one kind based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device
And offshore oil natural gas well drilling applications.
Background technique
World ocean petroleum resources rich reserves, account for the 34% of global oil total resources.As exploratory engineering of off-shore petroleum/gas reservoir is opened
The development of hair technology, marine oil and gas yield grow steadily, it has also become the new growth source of world's oil and gas production, but offshore drilling
Exploitation petroleum resources are typical high repayment, high-risk investment project, once blowout out of control accident occurs for drilling platforms, it will it makes
At huge economic loss, casualties and ecocatastrophe, such as the deep water horizon of U.S. Mexico gulf in 2010 drilling platforms
Blowout out of control explosion accident lasts 87 days and rescues successfully, 9.3 hundred million dollars of direct economic loss, cause 160 kilometers of seashore by
Leak the pollution of crude oil.
When strata pressure forecasting inaccuracy, drilling fluid density are relatively low, drilling fluid in well caused by the reasons such as human operational error
When pressure is lower than strata pressure, gas stream will be poured in the wellbore of probing, when the amount of pouring in is larger, that is, blowout.When blowout can not
Effectively control further deteriorates when leading to blowout out of control, will result in drilling platforms and the disasters accident such as catches fire, explode, generation blowout
Accident will cause environmental pollution and heavy economic losses.Due to the particularity of Marine oil and gas resource, prediction of formation pressure accuracy rate
Lower, the probability that blowout occurs in drilling process is higher, and in blowout early period of origination, effectively control blowout is that Prevention of blowout loses rapidly
The most effective means of control accident, blowout need to close preventer and read the parameters such as Standpipe pressure during closing well, casing pressure shut-in, sentence again after occurring
Disconnected strata pressure, and when preventer failure or the well head spray larger personnel of gesture can not be close to well heads, these parameters cannot be effective
It obtains.At this point it is possible to by indirect method estimate strata pressure, blowout fluid jet height be it is reliable, valuable shows
One of field parameters can be provided technology for subsequent kill-job operation and be protected by blowout fluid jet height Inversion Calculation strata pressure
Barrier.When blowout occur simultaneously again can not effective closing well when, drilling platforms personnel need to withdraw platform, reach home, blowout
Fluid level cannot be measured directly, can only remote observation on salvor or on surveying vessel, in this case, telemeasurement
Blowout fluid liquid-column height can use following several method:
1, laser electrical measuring method
On salvor, distance L between salvor and ocean platform is measured using laser pulse ranging instrument.Utilize theodolite
Measure blowout fluid high point inclination alpha.Blowout fluid level H=Lsin α can be calculated according to triangle Pythagorean theorem.But this
The use of kind laser pulse ranging instrument has very big limitation, and testee needs energy strong reflection photoelectric pulse signal, that is to say, that
This instrument can only Measuring Oceanic platform structure body, cannot directly measure blowout fluid column.If sea wind is strong, fluid column deviates flat
Platform will lead to measurement result distortion；The strong ocean platform of blowout is lost, then the method just fails.
2, barometry
Gas-pressure survey meter is carried using unmanned plane, blowout fluid column high point atmospheric pressure value and sea-level pressure value is measured, utilizes gas
Pressure difference calculates blowout liquid-column height.There are many drawbacks in this method, unmanned plane first can not accurately hang in use
It is stopped at blowout fluid column high point position, high point atmospheric pressure value is measured inaccurate；Secondly blowout location circumstances are complicated severe, to unmanned plane
It injures huge, causes huge economic losses, so method is not applicable with blowout elevation carrection.
3, picture pixels method
On salvor, blowout fluid column can be shot using high-precision video camera by unmanned plane, be fixed
Camera shoots the vanishing point information and characteristic body parameter in picture, carries out the excellent solution of parameter using genetic algorithm, and height can be completed and survey
Amount.But this measurement method requires picture to possess high pixel, is influenced by distance and marine climate environment, machine operation
When, jolts serious, and picture discrimination degree is low, it cannot be guaranteed that measurement accuracy, error is larger.
Utility model content
In view of the above problems, the object of the present invention is to provide it is a kind of for accurately measure blowout liquid-column height based on
Hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device.
To achieve the above object, the utility model takes following technical scheme: one kind is based on the offshore drilling of hull freedom degree
Blowout fluid liquid-column height acquisition device, the acquisition device include at least three dip measuring devices, signal condition and pretreatment
Device, data acquisition unit and computer, wherein all dip measuring devices are solid at equal intervals along the hull direction of observation vessel
It is fixed to be arranged on hull, and all dip measuring devices are arranged along the height such as same straight line；Each inclination angle measurement
The angle measurement that device is used to will acquire is sent to the signal condition and pretreatment unit, the signal condition and pretreatment
Device acquires acquisition unit by the data after being handled received angle measurement and is sent to the computer.
Further, each dip measuring device includes bracket, lever arm, high point surveillance mirror, angle measurement
Sensor, index glass, race glass and fixed mirror；The structure stand back side is flexibly connected the lever arm, the lever arm
The high point surveillance mirror is fixedly installed in top, is additionally provided with the angle measuring sensor on the lever arm；The structure branch
Frame upper end is provided with the through-hole for accommodating the high point surveillance mirror；The index glass is arranged in activity on the structure stand, described
Race glass and fixed mirror are further fixedly arranged on structure stand, and the race glass and fixed mirror are located at same level
Straight line；Wherein, the blowout fluid fluid column highest point that the fixed mirror can successively will be reflected through the high point surveillance mirror and index glass
Horizontally enter into the race glass.
Further, the bottom of the structure stand and lever arm is disposed as arc, and the bottom of the lever arm with
The bottom of the structure stand is tangent, and the lever arm bottom, which is extended forward, prevents the lever arm and the structure branch
The arc-shaped limit block that frame sways forwards and backwards.
Further, the index glass increases the convex lens shown using optically focused focusing is played, and the fixed mirror is using semi-transparent
Half anti-plane mirror.
Further, the amplification factor of the race glass is 10~60 times, and length is the structure stand height
1/2, lens barrel eyepiece diameter is the 1/8 of the structure stand height.
Further, it is provided on the lever arm for by rotating the screw being fixed with the structure stand.
Because the utility model adopts the above technical scheme, it has the following advantages: the utility model will be difficult to directly survey
The liquid-column height of amount is converted into inclination angle measurement, this process need to only measure blowout fluid column high point angle, is not required to measure platform reality
Distance reduces and measures to laser pulse instrument apart from bring environmental error because of severe sea condition, overcomes direct range measurement by environment
Influence big, the serious drawback of error.The angle measurement of the utility model is unrelated with observation vessel course, the speed of a ship or plane, stops without observation vessel
Ship observation, equipment is easy-to-use, easy to operate, and it is high to can be widely applied to offshore oil natural gas well drilling well blowout fluid fluid column
In degree measurement.
Detailed description of the invention
Fig. 1 is the measuring device structural schematic diagram of the utility model；
Fig. 2 is the dip measuring device structural schematic diagram of the utility model；
Fig. 3 is the dip measuring device measuring principle schematic diagram of the utility model；
Fig. 4 is the liquid-column height schematic diagram calculation of the utility model；
Fig. 5 is that hull shakes schematic diagram in the utility model, wherein (a) in Fig. 5 is that rolling schematic diagram occurs for hull,
(b) in Fig. 5 is that trim schematic diagram occurs for hull；
Fig. 6 is that liquid-column height when the utility model gas blowout accident point is on the extended line of three observation point lines calculates original
Reason figure；
Fig. 7 be the utility model hull course be in using gas blowout accident point as the center of circle, between distance be radius circumference cut
Liquid-column height schematic diagram calculation on line.
Specific embodiment
Come to carry out detailed description to the utility model below in conjunction with attached drawing.It should be appreciated, however, that attached drawing is provided only
More fully understand the utility model, they should not be interpreted as limitations of the present invention.
As shown in Figure 1, provided by the utility model acquired based on hull freedom degree offshore drilling blowout fluid liquid-column height
Device, including at least three dip measuring devices 1 (1 quantity of dip measuring device of the present embodiment is three, as example), one
Signal condition and pretreatment unit 2, a data acquisition unit 3 and a computer 4, wherein three dip measuring devices 1 are along observation
The hull direction of ship is fixed on hull at equal intervals, and three dip measuring devices 1 are arranged along the height such as same straight line
Column.
As shown in Fig. 2, each dip measuring device 1 include structure stand 11, lever arm 12, high point surveillance mirror 13,
Angle measuring sensor 14, index glass 15, race glass 16 and fixed mirror 17.11 back side of structure stand is flexibly connected lever arm
12, high point surveillance mirror 13 is fixedly installed in 12 top of lever arm, and high point surveillance mirror 13 is for the anti-of inspection well hydrojet column highest point
Penetrate mirror.Angle measuring sensor 14 is further fixedly arranged on lever arm 12.11 upper end of structure stand is provided with for accommodating high point
The through-hole of surveillance mirror 13, high point surveillance mirror 13 can rotate in above-mentioned through-hole.Index glass 14 is movably set on structure stand 11,
Index glass 14 can use convex lens, and index glass 14 can rotate in a certain range plays optically focused focusing increase display, and it is clear to improve
The effect of degree.It is further fixedly arranged on race glass 16 and fixed mirror 17 on structure stand 11, needs to guarantee race glass 16
It is located on same level straight line with fixed mirror 17.Wherein, fixed mirror 17 can use semi-transparent semi-reflecting plane mirror, guarantee by
The blowout fluid fluid column highest point successively reflected through high point surveillance mirror 13 and index glass 14 horizontally enters into race glass 16.
Each angle measuring sensor 14 is all connected with signal condition and pretreatment unit 2, each angle measuring sensor 14
It obtains angle measurement and is sent to signal condition and pretreatment unit 2, signal condition surveys received angle with pretreatment unit 2
Magnitude by data acquisition acquisition unit 3 is sent to computer 4 after being handled, wherein signal condition and pretreatment unit 2 can be with
Enhance valid signal strengths for going noise wave removing to influence using existing device, maximally reduce wind-force or human factor
Influence to measurement result.
Preferably, structure stand 11 and 12 bottom of lever arm are disposed as arc, and the bottom of lever arm 12 and structure branch
The bottom of frame 11 is tangent, and the bottom of lever arm 12, which is extended forward, arc-shaped limit block 121, and arc-shaped limit block 121 is in order to anti-
Only lever arm 12 is swayed forwards and backwards with structure stand 11.
Preferably, the amplification factor of race glass 16 can select 10~60 times, and size answers commensurate structure bracket 11 big
Small, length is about the 1/2 of 11 height of structure stand, and lens barrel eyepiece diameter is about the 1/8 of 11 height of structure stand.
Preferably, fixed screw has can be set in lever arm 12, and after observation angle adjustment, rotary fixing screw silk will
Lever arm 12 is fixed on structure stand 11, human error caused by reducing because of manual operation.
Preferably, several lightening holes 18 and hand hole 19 are also provided on structure stand 11.
Preferably, angle measuring sensor 14 can use 50Hz alternating signal, can export 50 angles every second
Measured value, it can calculate 50 blowout fluid liquid-column heights.
Preferably, data acquisition unit 3 also acquires observation hull self-sensor device for reflecting observation vessel hull status number
According to hull status data includes deck in ship structure height h, vessel draft depth h1, the height h of angle measuring sensor2, hull cross
Shake angle, θ1With hull trim angle θ2, guarantee that hull status data and inclination data are in synchronization, hull self-sensor device
For the sensor that observation vessel itself has, details are not described herein.
Below by specific embodiment be described in detail the utility model based on hull freedom degree offshore drilling blowout fluid
The use process of liquid-column height acquisition device, specifically:
1, as shown in Figure 1, three dip measuring devices 1 are fixedly mounted on the hull of observation vessel, three inclination angle measurements
Device 1 is same arranged in a straight line along hull direction at equal intervals.
2, each dip measuring device 1 is separately connected signal condition and pretreatment unit 2, and by signal condition and pre-processed
Device 2, data acquisition unit 3 and computer 4 are sequentially connected, and boot up self-test to each equipment.
3, as shown in figure 3, it is the race glass 16 of three dip measuring devices 1 is horizontal positioned, while being directed at blowout
Fluid low dot location, adjusting lever arm 12 makes high point surveillance mirror 13 be directed at blowout fluid high point position, and rotation index glass 14 makes light
The incoming race glass 11 of level, blowout fluid fluid column angulation is δ at this time, and it is ω that lever arm 12, which turns over angle, is computed δ
=2 ω, angle measuring sensor 14 send signal condition and pretreatment unit 2, signal for the angle measurement of acquisition in real time
Conditioning will pass through data acquisition unit 3 with pretreatment unit 2 and be sent to computer 4, simultaneous computer 4 after the signal processing of acquisition
The hull status information of observation vessel is also obtained by data acquisition unit 3.
4, computer 4 obtains blowout fluid liquid-column height for handling angle measurement and hull status information
Data, detailed process are as follows:
As shown in Figure 3, Figure 4, observation point spacing is d, and deck in ship structure height h absorbs water for h1, angle measuring sensor height
For h2, 3 observation point observation inclination values are respectively α from observation vessel1, α2, α3.It can be obtained according to trigonometric function fundamental theorem:
It can be obtained using the cosine law respectively in triangle ABD and triangle ACD:
Joint type (2) can be obtained with formula (3):
Joint type (1) and formula (4) can obtain the above height H of angle measuring sensor are as follows:
So blowout fluid column overall height HAlwaysAre as follows:
Consider that rolling, as shown in (a) in Fig. 5, roll angle θ occur for hull1, the change of dip measuring device institute's measuring angle
Roll angle should be subtracted when adding roll angle for former angle, therefore calculating, it is contemplated that arriving hull rolling blowout liquid-column height HAlways
Are as follows:
Consider that trim, as shown in (b) in Fig. 5, trim angle θ occur for hull2, dip measuring device is not in together together
On one horizontal line, it is contemplated that hull trim blowout liquid-column height HAlwaysAre as follows:
Further, as shown in fig. 6, if when gas blowout accident point is on the extended line of three observation point lines, according to triangle
Functional dependence variation, it is only necessary to which elevation carrection can be completed in any two observation point angle-data, such as takes A, B two observations
Point calculates:
It is divided into d between L1 and L2, therefore has
L1-L2=d (10)
Formula (9) is brought into formula (10) and is obtained
Similarly, B is taken, C two o'clock obtains calculation formula are as follows:
Similarly, A, the calculation formula of C two o'clock are taken are as follows:
Further, if hull course be in using gas blowout accident point as the center of circle, between distance be radius tangent to periphery on,
Only need intermediate sight point and any one observation point measurement angle data of edge that elevation carrection can be completed, as shown in fig. 7, A is
Any one observation point of edge, B are intermediate sight point, detailed process are as follows:
AB=d is brought into right angled triangle ABD, can be obtained:
Solution formula (16):
To sum up obtaining height calculation formula is
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection type and manufacture craft
Etc. may be changed, all equivalents and improvement carried out on the basis of technical solutions of the utility model,
It should not exclude except the protection scope of the utility model.
Claims (6)
1. one kind is based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, which is characterized in that acquisition dress
It sets including at least three dip measuring devices, signal condition and pretreatment unit, data acquisition unit and computer, wherein institute
There is the dip measuring device to be fixed on hull at equal intervals along the hull direction of observation vessel, and all inclination angle measurements
Device is arranged along the height such as same straight line；The angle measurement that each dip measuring device is used to will acquire is sent to institute
State signal condition and pretreatment unit, the signal condition and pretreatment unit received angle measurement is handled after by
The data acquisition acquisition unit is sent to the computer.
2. according to claim 1 be based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, spy
Sign is, each dip measuring device include structure stand, lever arm, high point surveillance mirror, angle measuring sensor,
Index glass, race glass and fixed mirror；The structure stand back side is flexibly connected the lever arm, and the lever arm top is fixed
The high point surveillance mirror is set, is additionally provided with the angle measuring sensor on the lever arm；The structure stand upper end is set
It is equipped with the through-hole for accommodating the high point surveillance mirror；The index glass, the structure stand is arranged in activity on the structure stand
On be further fixedly arranged on race glass and fixed mirror, and the race glass and fixed mirror are located at same level straight line；Its
In, the fixed mirror can horizontally enter into the blowout fluid fluid column highest point successively reflected through the high point surveillance mirror and index glass
The race glass.
3. according to claim 2 be based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, spy
Sign is that the bottom of the structure stand and lever arm is disposed as arc, and the bottom of the lever arm and the structure branch
The bottom of frame is tangent, and the lever arm bottom, which is extended forward, prevents the lever arm and the structure stand from front and back occurs
The arc-shaped limit block of shaking.
4. according to claim 2 be based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, spy
Sign is that the index glass increases the convex lens of display using optically focused focusing is played, and the fixed mirror uses semi-transparent semi-reflecting plane
Mirror.
5. according to claim 2 be based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device, spy
Sign is that the amplification factor of the race glass is 10~60 times, and length is the 1/2 of the structure stand height, lens barrel mesh
Mirror diameter is the 1/8 of the structure stand height.
6. being acquired according to claim 2~5 is described in any item based on hull freedom degree offshore drilling blowout fluid liquid-column height
Device, which is characterized in that be provided on the lever arm for by rotating the screw being fixed with the structure stand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278802.9U CN208536822U (en) | 2018-08-09 | 2018-08-09 | Based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278802.9U CN208536822U (en) | 2018-08-09 | 2018-08-09 | Based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device |
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| Publication Number | Publication Date |
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| CN208536822U true CN208536822U (en) | 2019-02-22 |
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|---|---|---|---|
| CN201821278802.9U Active CN208536822U (en) | 2018-08-09 | 2018-08-09 | Based on hull freedom degree offshore drilling blowout fluid liquid-column height acquisition device |
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2018
- 2018-08-09 CN CN201821278802.9U patent/CN208536822U/en active Active
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