CN110761728A - Anti-moving structure and logging instrument with same - Google Patents
Anti-moving structure and logging instrument with same Download PDFInfo
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- CN110761728A CN110761728A CN201810834569.6A CN201810834569A CN110761728A CN 110761728 A CN110761728 A CN 110761728A CN 201810834569 A CN201810834569 A CN 201810834569A CN 110761728 A CN110761728 A CN 110761728A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 136
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 98
- 230000000149 penetrating effect Effects 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 4
- 238000013508 migration Methods 0.000 claims 3
- 239000010410 layer Substances 0.000 description 55
- 230000003287 optical effect Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
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- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cable Accessories (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides a channeling-preventing structure and a logging instrument with the same, wherein the channeling-preventing structure is used for fixing and connecting a first cable and a second cable, the first cable comprises a first optical fiber and a first wrapping layer wrapping the first optical fiber, the second cable comprises a second optical fiber and a second wrapping layer wrapping the second optical fiber, and the channeling-preventing structure comprises: a first fixing portion for fixing the first wrapping layer and the first optical fiber; a second fixing portion for fixing the second cladding layer and the second optical fiber; the connecting structure is detachably connected with the first fixing part and the second fixing part at two ends respectively, and is provided with an accommodating cavity which can accommodate the first optical fiber and the second optical fiber; and the first connecting piece is arranged in the accommodating cavity and is used for connecting the first optical fiber and the second optical fiber. By the technical scheme provided by the invention, the problem that the optical fiber is easy to move in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of logging tests, in particular to a anti-channeling structure and a logging instrument with the same.
Background
Logging instruments using a wireline cable can be generally divided into two sections, a lead cable and a tool cable, in the downhole portion. The length of the guide optical cable is long and ranges from several kilometers to dozens of kilometers, the guide optical cable mainly has the function of extending an instrument unit into the underground to the required depth through ground equipment (such as a logging truck) and is short, generally ranges from hundreds of meters to several kilometers, and the guide optical cable is mainly used for connecting the instrument unit (such as a VSP detector unit). During installation, transportation and field construction, the guide cable and the instrument cable are typically separated for safety, stability and reliability and then connected together when the downhole portion of the logging instrument is hoisted to the wellhead.
Under the connection scheme, the optical fiber in the guiding optical cable can generate the play in the process of repeated winding and unwinding, namely, the optical fiber in the guiding optical cable has inconsistent displacement relative to the wrapping layer in the process of winding and unwinding the guiding optical cable (the inconsistency is common and has large displacement when the length of the guiding optical cable reaches several kilometers), and the optical fiber in the instrument optical cable also can generate the play. Particularly, at the connection position of the guide optical cable and the instrument optical cable, the connected optical fiber is easy to break after moving and needs to be repaired, which brings additional work, time consumption and labor consumption.
Disclosure of Invention
The invention provides a movement-preventing structure and a logging instrument with the same, and aims to solve the problem that an optical fiber in the prior art is easy to move.
In order to solve the above-mentioned problems, according to an aspect of the present invention, there is provided a tamper-proof structure for fixing and connecting a first cable and a second cable, the first cable including a first optical fiber and a first coating layer coating the first optical fiber, the second cable including a second optical fiber and a second coating layer coating the second optical fiber, the tamper-proof structure comprising: a first fixing portion for fixing the first wrapping layer and the first optical fiber; a second fixing portion for fixing the second cladding layer and the second optical fiber; the connecting structure is detachably connected with the first fixing part and the second fixing part at two ends respectively, and is provided with an accommodating cavity which can accommodate the first optical fiber and the second optical fiber; and the first connecting piece is arranged in the accommodating cavity and is used for connecting the first optical fiber and the second optical fiber.
Further, the connection structure includes: the first connecting part is detachably connected with the first fixing part and is provided with a first cavity which can accommodate a first optical fiber; the second connecting portion can be dismantled with the second fixed part and be connected, and the second connecting portion have the second cavity, and the second cavity can hold the second optic fibre, and the chamber is held in second cavity and the formation of first cavity, and the second connecting portion can be dismantled with first connecting portion and be connected, and first connecting piece sets up in first cavity or second cavity.
Further, first connecting piece sets up in the second cavity, and connection structure still includes: the sealing part is used for separating the first cavity and the second cavity, the first connecting part and the second connecting part are connected through the sealing part, and the sealing part is provided with a first avoiding hole used for penetrating the first optical fiber.
Further, the sealing portion includes: the two ends of the first cylinder are respectively connected with the first connecting part and the second connecting part; the first sealing layer is arranged in the first cylinder and used for separating the first cavity from the second cavity, and the first avoidance hole is formed in the first sealing layer; the sealing plug is arranged in the first avoiding hole in a penetrating mode and provided with a first through hole used for penetrating the first optical fiber.
Further, the both ends of first barrel are pegged graft with first connecting portion and second connecting portion respectively, and the sealing portion still includes: the first sealing ring is arranged between the sealing plug and the side wall of the first avoidance hole; and the filler is used for plugging a gap between the first optical fiber and the side wall of the first through hole.
Further, the connection structure further includes: the first connecting part and the sealing part are connected in a sealing way through the second cylinder; and the third cylinder, the second connecting part and the sealing part are in sealing connection through the third cylinder.
Furthermore, at least part of the first connecting part is arranged in the second cylinder in a penetrating mode, the inner wall of the second cylinder and/or the outer wall of the first connecting part are/is provided with a first limiting step, and the sealing part is in threaded connection with the second cylinder; at least part of the second connecting part is arranged in the third cylinder in a penetrating mode, the inner wall of the third cylinder and/or the outer wall of the second connecting part are/is provided with a second limiting step, and the sealing part is in threaded connection with the third cylinder.
Furthermore, the first cable comprises a plurality of first optical fibers, the second cable comprises a plurality of second optical fibers, the first connecting pieces are multiple, and the first connecting pieces are used for connecting the first optical fibers with the second optical fibers in a one-to-one correspondence manner.
Further, the first connecting member includes: a first part for connection with a first optical fiber; and the second part is used for being connected with a second optical fiber and is spliced with the first part.
Further, the first fixing part comprises a first connector and a first sleeve, the first connector is detachably connected with the connecting structure, and the first connector is matched with the first sleeve to separate and fix the first wrapping layer and the first optical fiber; the second fixed part comprises a second joint and a second kit, the second joint is detachably connected with the connecting structure, and the second joint is matched with the second kit to separate and fix the second wrapping layer and the second optical fiber.
Further, the first cable further includes a first electric wire, the second cable further includes a second electric wire, and the connection structure further includes: a second connector provided in the first connecting portion, the second connector being for connecting the first wire and separating the first wire from the first optical fiber; and a third connector provided in the second connection part, the third connector being for connecting a second wire and separating the second wire from the second optical fiber, the third connector being electrically connected to the second connector.
Further, the first connecting part comprises a fourth cylinder and a second sealing layer, the fourth cylinder is detachably connected with the first fixing part, the fourth cylinder is provided with a first cavity, the second sealing layer is arranged in the fourth cylinder, the second connecting part penetrates through the second sealing layer, and the second sealing layer is provided with a second avoiding hole for penetrating the first optical fiber; the second connecting portion include fifth barrel and third sealing layer, and the fifth barrel can be dismantled with the second fixed part and be connected, and the fifth barrel has the second cavity, and the third sealing layer sets up in the fifth barrel, and the third connecting piece is worn to establish on the third sealing layer, and the third sealing layer has the third hole of dodging that is used for wearing to establish the second optic fibre.
Furthermore, the first connecting part further comprises a first clamping sleeve and a first protective pipe, the first clamping sleeve is at least partially arranged in the second avoidance hole, the first protective pipe is connected with the first clamping sleeve, and the first protective pipe is used for penetrating the first optical fiber; the second connecting portion further comprises a second clamping sleeve and a second protective tube, the second clamping sleeve is at least partially arranged in the third avoiding hole, the second protective tube is connected with the second clamping sleeve, and the second protective tube is used for penetrating through the second optical fibers.
Further, the first connection portion further includes: and the fourth sealing layer is arranged in the first cavity and provided with a second through hole for penetrating the first optical fiber.
Further, the first cable comprises a plurality of first wires, the second cable comprises a plurality of second wires, the second connecting piece is a plurality of, and the third connecting piece is a plurality of; the plurality of third connecting pieces are electrically connected with the plurality of second connecting pieces in a one-to-one correspondence manner so as to electrically connect the plurality of first electric wires and the plurality of second electric wires in a one-to-one correspondence manner.
According to another aspect of the present invention, there is provided a well logging instrument comprising a first cable, a second cable and a tamper-resistant structure, wherein the tamper-resistant structure is the above-provided tamper-resistant structure, and the first cable and the second cable are connected by the tamper-resistant structure.
By applying the technical scheme of the invention, the anti-moving structure is provided with the first fixing part, the second fixing part, the connecting structure and the first connecting piece, so that the first wrapping layer and the first optical fiber of the first cable can be fixed through the first fixing part, the second wrapping layer and the second optical fiber of the second cable can be fixed through the second fixing part, and then one end of the first optical fiber and one end of the second optical fiber are connected in the accommodating cavity of the connecting structure through the first connecting piece. Therefore, the relative positions of the first wrapping layer and the first optical fiber and the relative positions of the second wrapping layer and the second optical fiber can be fixed at the connecting position of the first cable and the second cable, so that the first optical fiber and the second optical fiber are prevented from moving, the optical fiber is prevented from being broken, and the reliability is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic structural view of a tamper-resistant structure provided by an embodiment of the present invention;
FIG. 2 shows an enlarged view of area C of FIG. 1;
fig. 3 shows an enlarged view of region D in fig. 1.
Wherein the figures include the following reference numerals:
10. a first fixed part; 11. a first joint; 12. a first kit; 20. a second fixed part; 21. a second joint; 22. a second kit; 31. a first connecting member; 32. a second connecting member; 33. a third connecting member; 40. a first connection portion; 41. a fourth cylinder; 42. a second sealing layer; 43. a first ferrule; 44. a first guard tube; 45. a fourth sealing layer; 50. a second connecting portion; 51. a fifth cylinder; 52. a third sealing layer; 53. a second ferrule; 54. a second guard tube; 60. a sealing part; 61. a first cylinder; 62. a first sealing layer; 63. a sealing plug; 64. a first seal ring; 65. a filler; 71. a second cylinder; 72. a third cylinder; A. a first cable; B. a second cable.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a tamper-proof structure for fixing and connecting a first cable and a second cable, the first cable including a first optical fiber and a first coating layer coating the first optical fiber, the second cable including a second optical fiber and a second coating layer coating the second optical fiber, the tamper-proof structure including: a first fixing portion 10, the first fixing portion 10 being for fixing the first wrapping layer and the first optical fiber; a second fixing part 20, the second fixing part 20 for fixing a second cladding layer and a second optical fiber; the optical fiber connector comprises a connecting structure, a first fixing part 10 and a second fixing part 20, wherein two ends of the connecting structure are detachably connected with the first fixing part and the second fixing part respectively; and a first connector 31 disposed in the accommodating chamber, the first connector 31 being for connecting the first optical fiber and the second optical fiber.
With the technical scheme of this embodiment, set up first fixed part 10, second fixed part 20, connection structure and first connecting piece 31 at the anti-channeling structure, the first wrapping layer and the first optic fibre of the first cable A of accessible first fixed part 10 like this to through second wrapping layer and the second optic fibre of second fixed part 20 fixed second cable B, then connect the one end of first optic fibre and the one end of second optic fibre in connection structure's the intracavity that holds through first connecting piece 31. Therefore, the relative positions of the first wrapping layer and the first optical fiber and the relative positions of the second wrapping layer and the second optical fiber can be fixed at the connecting position of the first cable A and the second cable B, so that the first optical fiber and the second optical fiber are prevented from moving, the optical fiber is prevented from being broken, and the reliability is improved.
In this embodiment, the connection structure includes: the first connecting part 40 is detachably connected with the first fixing part 10, and the first connecting part 40 is provided with a first cavity which can accommodate a first optical fiber; the second connecting portion 50 is detachably connected to the second fixing portion 20, the second connecting portion 50 has a second cavity capable of accommodating a second optical fiber, the second cavity and the first cavity form an accommodating cavity, the second connecting portion 50 is detachably connected to the first connecting portion 40, and the first connecting member 31 is disposed in the first cavity or the second cavity. The first and second optical fibers can be received by the first and second connection parts 40 and 50, so that the first and second optical fibers can be protected from water or dust while facilitating the connection thereof.
Specifically, the first connecting member 31 is disposed in the second cavity, and the connecting structure further includes: the sealing portion 60 is used for separating the first cavity from the second cavity, the first connecting portion 40 and the second connecting portion 50 are connected through the sealing portion 60, and the sealing portion 60 is provided with a first avoiding hole for penetrating the first optical fiber. The first cavity and the second cavity can be spaced by the sealing part 60, so that the exchange of water, oil or dust between the first cavity and the second cavity can be avoided, and the sealing performance and the reliability of the anti-channeling structure are improved.
As shown in fig. 2, the seal portion 60 includes: a first cylinder 61, both ends of the first cylinder 61 being connected to the first connection part 40 and the second connection part 50, respectively; the first sealing layer 62 is arranged in the first barrel 61, the first sealing layer 62 is used for separating the first cavity from the second cavity, and the first avoidance hole is formed in the first sealing layer 62; and the sealing plug 63 penetrates through the first avoidance hole, and the sealing plug 63 is provided with a first through hole for penetrating the first optical fiber. This allows the first and second cavities to be separated by the first sealant 62 and pass through the first optical fibre via the sealing plug 63.
Further, two ends of the first cylinder 61 are respectively inserted into the first connection portion 40 and the second connection portion 50, and the sealing portion 60 further includes: a first seal ring 64 disposed between the sealing plug 63 and the sidewall of the first avoidance hole; and the filler 65 is used for plugging a gap between the first optical fiber and the side wall of the first through hole. This can further improve the sealing performance of the tamper-proof structure. The two ends of the first cylinder 61 are respectively inserted into the first connecting part 40 and the second connecting part 50, so that the assembly of the structure can be conveniently realized.
In this embodiment, the connection structure further includes: the second cylinder 71, the first connecting part 40 and the sealing part 60 are connected in a sealing way through the second cylinder 71; the third cylinder 72, the second connecting portion 50 and the sealing portion 60 are sealingly connected by the third cylinder 72. The strength of the anti-moving structure can be increased by providing the second cylinder 71 and the third cylinder 72, and the first connection portion 40 and the second connection portion 50 are protected. Further, a seal ring may be provided between the second cylinder 71 and the first connection portion 40, and a seal ring may be provided between the third cylinder 72 and the second connection portion 50, whereby the sealing property can be further improved.
In this embodiment, at least a portion of the first connecting portion 40 is inserted into the second cylinder 71, the inner wall of the second cylinder 71 and/or the outer wall of the first connecting portion 40 has a first limit step, and the sealing portion 60 is in threaded connection with the second cylinder 71; at least part of the second connecting part 50 is arranged in the third cylinder 72 in a penetrating way, the inner wall of the third cylinder 72 and/or the outer wall of the second connecting part 50 is/are provided with a second limiting step, and the sealing part 60 is in threaded connection with the third cylinder 72. The relative position of the second cylinder 71 to the first connection portion 40 can be defined by providing a first limit step, and the relative position of the third cylinder 72 to the second connection portion 50 can be defined by providing a second limit step. The seal 60 is screwed to the second cylinder 71 and the third cylinder 72, thereby facilitating assembly of the structure.
In this embodiment, the first cable includes a plurality of first optical fibers, the second cable includes a plurality of second optical fibers, the first connecting members 31 are a plurality of, and the plurality of first connecting members 31 are used for connecting the plurality of first optical fibers and the plurality of second optical fibers in a one-to-one correspondence. Therefore, the plurality of first optical fibers and the plurality of second optical fibers can be fixed and connected through the anti-shifting structure.
Specifically, the first connector 31 includes: a first part for connection with a first optical fiber; and the second part is used for being connected with a second optical fiber and is spliced with the first part. Therefore, the first optical fiber and the second optical fiber can be connected in a plugging mode, and the operation is convenient.
As shown in fig. 2 and 3, the first fixing portion 10 includes a first connector 11 and a first sleeve 12, the first connector 11 is detachably connected to the connecting structure, and the first connector 11 and the first sleeve 12 cooperate to separate and fix the first wrapping layer and the first optical fiber, so that the separation and fixation of the first wrapping layer and the first optical fiber can be realized; the second fixing portion 20 includes a second joint 21 and a second sheathing member 22, the second joint 21 is detachably connected to the connection structure, and the second joint 21 is engaged with the second sheathing member 22 to separate and fix the second sheathing layer and the second optical fiber, so that separation and fixation of the second sheathing layer and the second optical fiber can be achieved.
Specifically, the first joint has a first mounting cavity, and the first kit includes: the first sleeve body is arranged in the first mounting cavity and provided with a tapered hole; the second sleeve body is arranged in the tapered hole and is of a tapered structure, a gap between the second sleeve body and the first sleeve body is used for clamping the first wrapping layer, and the second sleeve body is provided with a through hole used for penetrating through the first optical fiber. The first wrapping layer and the first optical fiber are separated and fixed through the structure. Accordingly, the second connector 21 and the second kit 22 have the same structure as the first connector 11 and the first kit 12.
In this embodiment, the first cable further includes a first electric wire, the second cable further includes a second electric wire, and the connection structure further includes: a second connector 32 provided in the first connection portion 40, the second connector 32 for connecting a first wire and separating the first wire from the first optical fiber; and a third connector 33 provided in the second connection part 50, the third connector 33 for connecting a second wire and separating the second wire from the second optical fiber, the third connector 33 being electrically connected to the second connector 32. Thus, the anti-moving structure can also realize the fixation and connection of the first electric wire and the second electric wire, so that the anti-moving structure can fix the optical fiber and the electric wire at the same time, thereby improving the application range. In this embodiment, the second connector 32 can be connected to the first wire by plugging, and the third connector 33 can be connected to the second wire by plugging. A third electric wire may be provided in the tamper-proof structure to electrically connect the second connector 32 and the third connector 33. In this embodiment, a fourth connection member may be further disposed on the first sealing layer 62 of the sealing portion 60 to connect the second connection member 32 and the third connection member 33.
Specifically, the first connecting portion 40 includes a fourth cylinder 41 and a second sealing layer 42, the fourth cylinder 41 is detachably connected to the first fixing portion 10, the fourth cylinder 41 has a first cavity, the second sealing layer 42 is disposed in the fourth cylinder 41, the second connecting member 32 is disposed on the second sealing layer 42 in a penetrating manner, and the second sealing layer 42 has a second avoiding hole for the first optical fiber to pass through; the second connecting portion 50 includes a fifth cylinder 51 and a third sealing layer 52, the fifth cylinder 51 is detachably connected to the second fixing portion 20, the fifth cylinder 51 has a second cavity, the third sealing layer 52 is disposed in the fifth cylinder 51, the third connecting member 33 is disposed on the third sealing layer 52 in a penetrating manner, and the third sealing layer 52 has a third avoiding hole for passing the second optical fiber. This improves the sealing of the device by the second sealing layer 42 and enables the first electrical wire to be separated from the first optical fibre; the third sealing layer 52 improves the sealing of the device and enables the second wire to be separated from the second optical fiber.
As shown in fig. 2 and 3, the first connecting portion 40 further includes a first ferrule 43 and a first protection tube 44, the first ferrule 43 is at least partially disposed in the second avoiding hole, the first protection tube 44 is connected to the first ferrule 43, and the first protection tube 44 is used for passing through the first optical fiber; the second connecting portion 50 further includes a second ferrule 53 and a second protection tube 54, the second ferrule 53 is at least partially disposed in the third avoiding hole, the second protection tube 54 is connected to the second ferrule 53, and the second protection tube 54 is used for passing through the second optical fiber. The first optical fiber can be protected by arranging the first protective tube 44, and the first clamping sleeve 43 is arranged to facilitate the fixing and connection of the first protective tube 44; the second optical fiber can be protected by providing the second protection tube 54, and the fixing and connection of the second protection tube 54 can be facilitated by providing the second ferrule 53.
In order to further improve the sealing effect, in the present embodiment, the first connection portion 40 further includes: and the fourth sealing layer 45 is arranged in the first cavity, and the fourth sealing layer 45 is provided with a second through hole for penetrating the first optical fiber. The fourth sealing layer 45 may be used to prevent liquid and dust from entering.
In the present embodiment, the first cable includes a plurality of first wires, the second cable includes a plurality of second wires, the second connecting member 32 is a plurality of, and the third connecting member 33 is a plurality of; the plurality of third connectors 33 are electrically connected to the plurality of second connectors 32 in a one-to-one correspondence to electrically connect the plurality of first electric wires and the plurality of second electric wires in a one-to-one correspondence. Thus, the anti-play structure can realize the connection of the plurality of first electric wires and the plurality of second electric wires, thereby improving the application range and preventing the electric wires from being scattered.
Another embodiment of the present invention further provides a logging instrument, including a first cable, a second cable, and a tamper-proof structure, where the tamper-proof structure is the tamper-proof structure provided in the above embodiment, and the first cable and the second cable are connected by the tamper-proof structure. Therefore, the relative positions of the first wrapping layer and the first optical fiber and the relative positions of the second wrapping layer and the second optical fiber can be fixed at the connecting position of the first cable and the second cable, so that the first optical fiber and the second optical fiber are prevented from moving, the optical fiber is prevented from being broken, and the reliability is improved. And, can also fix and connect the first electric wire in the first cable and the second electric wire in the second cable, prevent that the electric wire from taking place the drunkenness and breaking. Therefore, by the technical scheme of the embodiment, the reliability and the service life of the logging instrument can be improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
Claims (16)
1. An anti-migration structure, wherein the anti-migration structure is used for fixing and connecting a first cable and a second cable, the first cable includes a first optical fiber and a first wrapping layer wrapping the first optical fiber, the second cable includes a second optical fiber and a second wrapping layer wrapping the second optical fiber, the anti-migration structure comprising:
a first fixing portion (10), the first fixing portion (10) being for fixing the first wrapping layer and the first optical fiber;
a second fixing portion (20), the second fixing portion (20) fixing the second cladding layer and the second optical fiber;
the two ends of the connecting structure are respectively detachably connected with the first fixing part (10) and the second fixing part (20), and the connecting structure is provided with an accommodating cavity which can accommodate the first optical fiber and the second optical fiber;
a first connector (31) disposed in the receiving cavity, the first connector (31) for connecting the first optical fiber and the second optical fiber.
2. The tamper-resistant structure according to claim 1, wherein the connecting structure comprises:
the first connecting part (40) is detachably connected with the first fixing part (10), and the first connecting part (40) is provided with a first cavity which can accommodate the first optical fiber;
the second connecting portion (50) is detachably connected with the second fixing portion (20), the second connecting portion (50) is provided with a second cavity, the second cavity can contain the second optical fiber, the second cavity and the first cavity form the containing cavity, the second connecting portion (50) is detachably connected with the first connecting portion (40), and the first connecting piece (31) is arranged in the first cavity or the second cavity.
3. The tamper-resistant structure according to claim 2, wherein the first connector (31) is disposed in the second cavity, the connecting structure further comprising:
sealing (60), sealing (60) are used for the interval first cavity with the second cavity, first connecting portion (40) with second connecting portion (50) pass through sealing (60) are connected, sealing (60) have and are used for wearing to establish the first hole of dodging of first optic fibre.
4. The tamper-proof structure according to claim 3, wherein the sealing portion (60) includes:
a first cylinder (61), wherein two ends of the first cylinder (61) are respectively connected with the first connecting part (40) and the second connecting part (50);
a first sealing layer (62) disposed in the first cylinder (61), the first sealing layer (62) being configured to separate the first cavity from the second cavity, the first avoidance hole being located in the first sealing layer (62);
and the sealing plug (63) is arranged in the first avoidance hole in a penetrating mode, and the sealing plug (63) is provided with a first through hole used for penetrating the first optical fiber.
5. The tamper-proof structure according to claim 4, wherein both ends of the first cylinder (61) are respectively plugged with the first connection portion (40) and the second connection portion (50), and the sealing portion (60) further comprises:
a first sealing ring (64) arranged between the sealing plug (63) and the side wall of the first avoidance hole;
a filler (65) for plugging a gap between the first optical fiber and a sidewall of the first through-hole.
6. The tamper-resistant structure according to claim 3, wherein the connecting structure further comprises:
a second cylinder (71), wherein the first connecting part (40) and the sealing part (60) are connected in a sealing way through the second cylinder (71);
a third cylinder (72), wherein the second connecting part (50) and the sealing part (60) are connected in a sealing manner through the third cylinder (72).
7. The tamper-resistant structure according to claim 6,
at least part of the first connecting part (40) penetrates through the second cylinder (71), the inner wall of the second cylinder (71) and/or the outer wall of the first connecting part (40) is/are provided with a first limiting step, and the sealing part (60) is in threaded connection with the second cylinder (71);
at least part of the second connecting part (50) penetrates through the third cylinder (72), the inner wall of the third cylinder (72) and/or the outer wall of the second connecting part (50) is/are provided with a second limiting step, and the sealing part (60) is in threaded connection with the third cylinder (72).
8. The anti-tamper structure according to claim 1, wherein the first cable comprises a plurality of first optical fibers, the second cable comprises a plurality of second optical fibers, the first connectors (31) are in plurality, and the plurality of first connectors (31) are for connecting the plurality of first optical fibers and the plurality of second optical fibers in a one-to-one correspondence.
9. Anti-tamper structure according to claim 1, characterized in that said first connector (31) comprises:
a first part for connection with the first optical fiber;
and the second part is used for being connected with the second optical fiber and is spliced with the first part.
10. The tamper-resistant structure according to claim 1,
the first fixing part (10) comprises a first joint (11) and a first sleeve (12), the first joint (11) is detachably connected with the connecting structure, and the first joint (11) is matched with the first sleeve (12) to separate and fix the first wrapping layer and the first optical fiber;
the second fixing portion (20) comprises a second joint (21) and a second kit (22), the second joint (21) is detachably connected with the connecting structure, and the second joint (21) is matched with the second kit (22) to separate and fix the second wrapping layer and the second optical fiber.
11. The tamper-resistant structure according to any one of claims 2 to 7, wherein the first cable further includes a first electric wire, the second cable further includes a second electric wire, the connection structure further includes:
a second connector (32) provided in the first connection portion (40), the second connector (32) being for connecting the first wire and separating the first wire from the first optical fiber;
a third connector (33) provided in the second connection portion (50), the third connector (33) being for connecting the second wire and separating the second wire from the second optical fiber, the third connector (33) being electrically connected to the second connector (32).
12. The tamper-resistant structure according to claim 11,
the first connecting part (40) comprises a fourth cylinder (41) and a second sealing layer (42), the fourth cylinder (41) is detachably connected with the first fixing part (10), the fourth cylinder (41) is provided with the first cavity, the second sealing layer (42) is arranged in the fourth cylinder (41), the second connecting part (32) penetrates through the second sealing layer (42), and the second sealing layer (42) is provided with a second avoiding hole for penetrating through the first optical fiber;
the second connecting portion (50) include fifth barrel (51) and third sealing layer (52), fifth barrel (51) with the connection can be dismantled to second fixed part (20), fifth barrel (51) have the second cavity, third sealing layer (52) set up in fifth barrel (51), third connecting piece (33) wear to establish on third sealing layer (52), third sealing layer (52) have and are used for wearing to establish the third of second optic fibre dodges the hole.
13. The tamper-resistant structure according to claim 12,
the first connecting portion (40) further comprises a first clamping sleeve (43) and a first protection pipe (44), the first clamping sleeve (43) is at least partially arranged in the second avoiding hole, the first protection pipe (44) is connected with the first clamping sleeve (43), and the first protection pipe (44) is used for penetrating the first optical fiber;
the second connecting portion (50) further comprises a second clamping sleeve (53) and a second protective tube (54), the second clamping sleeve (53) is at least partially arranged in the third avoiding hole, the second protective tube (54) is connected with the second clamping sleeve (53), and the second protective tube (54) is used for penetrating the second optical fiber.
14. The tamper-resistant structure according to claim 12, wherein the first connecting portion (40) further comprises:
a fourth sealing layer (45) disposed in the first cavity, the fourth sealing layer (45) having a second through hole for passing the first optical fiber therethrough.
15. The tamper-resistant structure according to claim 11,
the first cable includes a plurality of the first electric wires, the second cable includes a plurality of the second electric wires, the second connecting member (32) is a plurality, and the third connecting member (33) is a plurality;
the plurality of third connecting members (33) are electrically connected to the plurality of second connecting members (32) in a one-to-one correspondence, so that the plurality of first electric wires and the plurality of second electric wires are electrically connected in a one-to-one correspondence.
16. A logging instrument comprising a first cable, a second cable and a tamper-resistant structure, wherein the tamper-resistant structure is as claimed in any one of claims 1 to 15, the first cable and the second cable being connected by the tamper-resistant structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834569.6A CN110761728B (en) | 2018-07-26 | 2018-07-26 | Anti-moving structure and logging instrument with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834569.6A CN110761728B (en) | 2018-07-26 | 2018-07-26 | Anti-moving structure and logging instrument with same |
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| CN110761728A true CN110761728A (en) | 2020-02-07 |
| CN110761728B CN110761728B (en) | 2021-09-28 |
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| CN110761728B (en) | 2021-09-28 |
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