CN104494787B - Device and method for stabilizing relative positions of subarray gaps of seismic focus arrays in water - Google Patents
Device and method for stabilizing relative positions of subarray gaps of seismic focus arrays in water Download PDFInfo
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- CN104494787B CN104494787B CN201410705720.8A CN201410705720A CN104494787B CN 104494787 B CN104494787 B CN 104494787B CN 201410705720 A CN201410705720 A CN 201410705720A CN 104494787 B CN104494787 B CN 104494787B
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- base plate
- relative position
- column pitch
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Abstract
The invention provides a device and a method for stabilizing relative positions of subarray gaps of seismic focus arrays in water. The device for stabilizing relative positions of the subarray gaps of the seismic focus arrays in water comprises traction rings mounted at the tails of subarray floating bodies of the seismic focus arrays, baseplate skeletons taking the shape of rings and spaced from the traction rings, baseplates being circular and disposed in the baseplate skeletons, and connecting columns connected between the baseplate skeletons and the traction rings. The method for stabilizing relative positions of the subarray gaps of the seismic focus arrays in water adopts the device for stabilizing relative positions of the subarray gaps of the seismic focus arrays in water, and comprises the step of connecting the traction rings to the tails of the subarray floating bodies of the seismic focus arrays through ropes. The device and method can increase the navigation resistance and reduce the influence of water flows on the floating bodies and subarrays, so that the offset of the tails of the floating bodies is within a certain control range and the subarray gaps can be controlled.
Description
Technical field
The present invention relates to field of geophysical exploration is and in particular to one kind stablizes focus battle array in water for offshore oil exploration
The apparatus and method of row submatrix column pitch relative position, stablize the dress of focus array submatrix column pitch relative position in a kind of water
Put and method.
Background technology
In the sea intermediate zone oil exploration operation of beach, energy source boat is travelled with certain speed of a ship or plane, and ship stern pulls focus array.Shake
Source array is made up of multiple independent sub-arrays, and each subarray is suspended on corresponding buoyancy aid, passes through between buoyancy aid and subarray
Depthkeeping rope connects, and subarray relies on buoyancy aid buoyancy and depthkeeping rope to suspend in water with certain depth.Each subarray passes through folding and unfolding
Mechanism discharges to the distance away from stern 15-20 rice, ocean current, surges, stern current disorder that high wind and airscrew thrust cause etc.
Factor can produce certain interference to buoyancy aid and each subarray, causes each subarray to produce certain skew, each son in horizontal plane
The disturbing factor that array is subject to is inconsistent so that the distance between each subarray is subject to above-mentioned factor change to affect.
Installation for the ease of subarray positioner and fixation, usual positioner is arranged on buoyancy aid afterbody, therefore logical
Cross the subarray coordinate data of positioner acquisition, with reference to the physical location of buoyancy aid afterbody, rather than subarray central point
Coordinate data.With respect to buoyancy aid front end, the swing of afterbody becomes apparent from, and so also increases the change of submatrix column pitch, unfavorable
Quality monitoring in construction.
In sum, there is problems in that focus array subarray easily produces in horizontal plane in water in prior art
Certain skew, affects the distance between each subarray.
Content of the invention
The present invention provides the apparatus and method stablizing focus array submatrix column pitch relative position in a kind of water, to solve to shake
Source array subarray easily produces certain skew in horizontal plane in water, affects the distance between each subarray.
For this reason, the present invention proposes to stablize the device of focus array submatrix column pitch relative position in a kind of water, in described water
The device stablizing focus array submatrix column pitch relative position includes:
Bail, is arranged on the afterbody stablizing focus array subarray buoyancy aid in water；
Base plate skeleton, is circular, and described base plate skeleton separates setting with described bail；
Base plate, for circle, is filled in described base plate skeleton；
Connecting post, is connected between described base plate skeleton and described bail.
Further, the diameter with diameter greater than described bail of described base plate skeleton.
Further, the axle center of described bail is located on the axis of described base plate skeleton, and the number of described connecting post is
Four, the projection on described base plate of adjacent described connecting post is mutually perpendicular to.
Further, the axis of the vertical described base plate skeleton of the axis of described bail.
Further, described bail is internal diameter 60mm, the circular ring of external diameter 100mm, and described connecting post is diameter
For 20mm, the cylinder of a length of 350mm, described base plate 3 diameter 300mm, thickness is the circular sheet-like structures of 5mm, described base plate bone
Frame 4 is internal diameter 280mm, the circular ring of external diameter 320mm.
The method stablizing focus array submatrix column pitch relative position in a kind of water of the present invention, using in foregoing water
Stablize the device of focus array submatrix column pitch relative position, in described water, stablize focus array submatrix column pitch relative position
Method includes:
Step a: bail is connected at the subarray buoyancy aid afterbody of focus array by rope；
Step b: and then together sink stablizing focus array submatrix column pitch relative position device in subarray, buoyancy aid and water
Put to designated depth in water；
Step c: and then, energy source boat is travelled with certain speed of a ship or plane, pulls focus array and enters the position requiring.
Further, in step c, when the speed of a ship or plane of energy source boat is 4 to 7 section, when subarray deviates target location, because in water
The apparatus array spaced position stabilising arrangement stablizing focus array submatrix column pitch relative position also can deviate target location therewith,
At this moment the device stablizing focus array submatrix column pitch relative position in water can produce a return component, makes the subarray of deviation
Return to target location.
Stablize the device of focus array submatrix column pitch relative position in the water of the present invention, ship resistance can be increased, subtract
The impact to buoyancy aid and subarray for the weep is so that the side-play amount of buoyancy aid afterbody is within certain control range, thus realizing
The control of sub-array spacing.
Brief description
Fig. 1 is for stablizing the device main structure diagram of focus array submatrix column pitch relative position in the water of the present invention；
Fig. 2 is for stablizing the device side structure schematic view of focus array submatrix column pitch relative position in the water of the present invention.
Drawing reference numeral illustrates:
1 bail, 2 connecting post, 3 base plate 4 base plate skeleton
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now comparison brief description this
Bright.
As depicted in figs. 1 and 2, the present invention proposes to stablize the dress of focus array submatrix column pitch relative position in a kind of water
Put, the device stablizing focus array submatrix column pitch relative position in described water includes:
Bail 1, is arranged on the afterbody stablizing focus array subarray buoyancy aid in water, bail 1 can by rope with
The afterbody of subarray buoyancy aid is connected；
Base plate skeleton 4, is circular, primarily serves integrated support effect, and described base plate skeleton is separated with described bail 1
Setting, apart from bail 1 certain distance；
Base plate 3, for circle, is filled in described base plate skeleton, and base plate 3 is located in a plane with base plate skeleton 4；Base plate
3 play the effect increasing ship resistance；
Connecting post 2, is connected between described base plate skeleton 4 and described bail 1, plays connection function, such connection
Mode, is easily installed and makes.
The present invention can be increased by base plate 3 increases ship resistance (resistance with navigation direction is consistent), reduces current to floating
The impact of body and subarray is so that the side-play amount of buoyancy aid afterbody is within certain control range.The invention enables buoyancy aid afterbody
Amplitude of fluctuation reduce, this also reduces the change of submatrix column pitch, be conducive to construct in quality monitoring.
Further, as shown in figure 1, the diameter with diameter greater than described bail 1 of described base plate skeleton 4, to realize relatively
Big ship resistance area.
Further, as shown in figure 1, the axle center of described bail 1 is located on the axis of described base plate skeleton 4, as Fig. 2 institute
Show, the number of described connecting post 2 is four, the projection on described base plate of adjacent described connecting post is mutually perpendicular to.Four companies
Connect post 2 and formed and be oppositely arranged two-by-two, and projection on described base plate for two connecting posts 2 being oppositely arranged is located at straight line
On, such setting is so that the device stablizing focus array submatrix column pitch relative position in water is symmetrical structure or axial symmetry
Structure, increases the balance of stress.
Further, the axis of the vertical described base plate skeleton 4 of the axis of described bail 1.It is, bail 1 is vertical
The plane setting that described base plate 3 is located, so, is easy to the connection of bail 1 and the afterbody of subarray buoyancy aid.
Further, described bail is internal diameter 60mm, the circular ring of external diameter 100mm, and described connecting post is diameter
For 20mm, the cylinder of a length of 350mm, described base plate 3 diameter 300mm, thickness is the circular sheet-like structures of 5mm, described base plate bone
Frame 4 is internal diameter 280mm, the circular ring of external diameter 320mm.Such structure is according to the analysis to buoyancy aid stress in water,
Make in conjunction with practice of construction ground condition, be suitable for the situation in beach sea intermediate zone oil exploration operation, and be easily installed making.
The method stablizing focus array submatrix column pitch relative position in a kind of water of the present invention, the method adopts noted earlier
Water in stablize the device of focus array submatrix column pitch relative position, stablize focus array submatrix column pitch in described water relatively
The method of position includes:
Step a: bail 1 is connected to, by rope, the afterbody stablizing focus array subarray buoyancy aid in water, so that
The amplitude of fluctuation of buoyancy aid afterbody reduces, and this also reduces the change of submatrix column pitch, the quality monitoring in being conducive to constructing；
Step b: and then shake stable with water for the device stablizing focus array submatrix column pitch relative position in described water
Source array subarray and buoyancy aid together sinking to designated depth；
Step c: and then start energy source boat with certain speed of a ship or plane traveling, energy source boat pulls focus array subarray.So, may be used
Realize control to focus array submatrix column pitch, reduce ocean current, surge, the stern current that high wind and airscrew thrust cause are disorderly
The interference of the factor sub-array spacing such as random is it is ensured that the change of array pitch in allowed limits, efficiently solves subarray
Spacing control problem.
Further, in step c, the speed of a ship or plane of energy source boat is 4 to 7 sections, and bail is internal diameter 60mm, the circle of external diameter 100mm
Circulus, described connecting post is a diameter of 20mm, the cylinder of a length of 350mm, described base plate 3 diameter 300mm, and thickness is 5mm
Circular sheet-like structures, described base plate skeleton 4 be internal diameter 280mm, the circular ring of external diameter 320mm.Such structure is root
According to the analysis to buoyancy aid stress in water, make in conjunction with practice of construction ground condition.Wherein, the speed of a ship or plane of energy source boat is 4 to 7 sections, this
The area of individual speed binding base plate can make the vertical course of base plate, or the axis direction of base plate and horizontal direction parallel, so that bottom
Plate produces the course resistance needing, and is suitable for the situation in beach sea intermediate zone oil exploration operation.
Stablize the device of focus array submatrix column pitch relative position in the water of the present invention, ship resistance can be increased, subtract
The impact to buoyancy aid and subarray for the weep is so that the side-play amount of buoyancy aid afterbody is within certain control range, thus realizing
The control of sub-array spacing.
The foregoing is only the schematic specific embodiment of the present invention, be not limited to the scope of the present invention.For this
Each part of invention can be mutually combined under conditions of not conflicting, any those skilled in the art, without departing from this
Done equivalent variations and modification on the premise of the design of invention and principle, all should belong to the scope of protection of the invention.
Claims (7)
1. stablize the device of focus array submatrix column pitch relative position in a kind of water it is characterised in that stable in described water shake
The device of source array submatrix column pitch relative position includes:
Bail, is arranged on the afterbody stablizing focus array subarray buoyancy aid in water；
Base plate skeleton, is circular, and described base plate skeleton separates setting with described bail；
Base plate, for circle, is filled in described base plate skeleton；
Connecting post, is connected between described base plate skeleton and described bail.
2. stablize the device of focus array submatrix column pitch relative position in water as claimed in claim 1 it is characterised in that institute
State the diameter with diameter greater than described bail of base plate skeleton.
3. stablize the device of focus array submatrix column pitch relative position in water as claimed in claim 1 it is characterised in that institute
The axle center stating bail is located on the axis of described base plate skeleton, and the number of described connecting post is four, adjacent described connection
Projection on described base plate for the post is mutually perpendicular to.
4. stablize the device of focus array submatrix column pitch relative position in water as claimed in claim 1 it is characterised in that institute
State the axis of the vertical described base plate skeleton of the axis of bail.
5. stablize the device of focus array submatrix column pitch relative position in water as claimed in claim 1 it is characterised in that institute
Stating bail is internal diameter 60mm, the circular ring of external diameter 100mm, and described connecting post is a diameter of 20mm, the circle of a length of 350mm
Post, described base plate 3 diameter 300mm, thickness is the circular sheet-like structures of 5mm, and described base plate skeleton 4 is internal diameter 280mm, external diameter
The circular ring of 320mm.
6. in a kind of water, stablize the method for focus array submatrix column pitch relative position it is characterised in that using claim 1 to
Stablize the device of focus array submatrix column pitch relative position in water any one of 5, in described water, stablize focus array
The method of submatrix column pitch relative position includes:
Step a: bail is connected at the subarray buoyancy aid afterbody of focus array by rope；
Step b: and then together sinking is extremely by stablizing focus array submatrix column pitch relative position device in subarray, buoyancy aid and water
Designated depth in water；
Step c: energy source boat is travelled with certain speed of a ship or plane, pulls focus array and enters the position requiring.
7. stablize the method for focus array submatrix column pitch relative position in water as claimed in claim 6 it is characterised in that walking
In rapid c, when the speed of a ship or plane of energy source boat is 4 to 7 section, when subarray deviates target location, because stablizing focus array subarray in water
The apparatus array spaced position stabilising arrangement of spacing relative position also can deviate target location therewith, at this moment stablizes focus battle array in water
The device of row submatrix column pitch relative position can produce a return component, makes the subarray of deviation return to target location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705720.8A CN104494787B (en) | 2014-11-28 | 2014-11-28 | Device and method for stabilizing relative positions of subarray gaps of seismic focus arrays in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705720.8A CN104494787B (en) | 2014-11-28 | 2014-11-28 | Device and method for stabilizing relative positions of subarray gaps of seismic focus arrays in water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104494787A CN104494787A (en) | 2015-04-08 |
| CN104494787B true CN104494787B (en) | 2017-01-18 |
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| CN201410705720.8A Active CN104494787B (en) | 2014-11-28 | 2014-11-28 | Device and method for stabilizing relative positions of subarray gaps of seismic focus arrays in water |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4033278A (en) * | 1976-02-25 | 1977-07-05 | Continental Oil Company | Apparatus for controlling lateral positioning of a marine seismic cable |
| US6671223B2 (en) * | 1996-12-20 | 2003-12-30 | Westerngeco, L.L.C. | Control devices for controlling the position of a marine seismic streamer |
| US6758157B2 (en) * | 2002-06-11 | 2004-07-06 | Concord Technologies, Lp | Streamer cable connector |
| US7450467B2 (en) * | 2005-04-08 | 2008-11-11 | Westerngeco L.L.C. | Apparatus and methods for seismic streamer positioning |
| US8483008B2 (en) * | 2008-11-08 | 2013-07-09 | Westerngeco L.L.C. | Coil shooting mode |
| BRPI0922199A2 (en) * | 2008-12-12 | 2015-12-29 | Cggveritas Services U S Inc | seismic series towing system |
| NO332563B1 (en) * | 2009-07-07 | 2012-10-29 | Kongsberg Seatex As | System and method for positioning instrumented rope cable in water |
| NO335660B1 (en) * | 2012-06-26 | 2015-01-19 | Ulmatec Baro As | A marine geophysical deflector for towing seismic arrays |
| CN204527542U (en) * | 2014-11-28 | 2015-08-05 | 中国石油天然气集团公司 | The device of focus array subarray spacing relative position is stablized in water |
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