CN208316851U - A kind of downhole optic fiber imaging camera machine - Google Patents
A kind of downhole optic fiber imaging camera machine Download PDFInfo
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- CN208316851U CN208316851U CN201821074761.1U CN201821074761U CN208316851U CN 208316851 U CN208316851 U CN 208316851U CN 201821074761 U CN201821074761 U CN 201821074761U CN 208316851 U CN208316851 U CN 208316851U
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Abstract
The utility model relates to a kind of downhole optic fiber imaging camera machines, it mainly include the spread of the rumours unit, video compressing unit, storage unit, imaging unit, lighting unit, wherein imaging unit includes forward sight camera and side view camera, two cameras have corresponding light source, image converges in imaging fibre through lens in well, image in well is restored on sensitive chip through lens in the other end of optical fiber, output forward sight image and side elevation image after sensitive chip is digitized, image carries out video compress by video compressing module, video image after compression is transmitted to ground system through logging cable by the spread of the rumours unit with the digitized image of 2 frame per second, it is stored with the digitized image of 25-30 frame per second into storage unit, when instrument proposes well head, it is read on ground.Due to having used imaging fibre, sensitive chip is conducive to the operating temperature for improving instrument far from heat producing light sources, and further decreases the volume of side view camera, and apparatus structure is further simplified.
Description
Technical field
The utility model relates to petroleum, exploration engineering field, and in particular to take the photograph to a kind of underground of memory-type imaging fiber
As instrument, it is applied in open hole well or cased well.
Background technique
Existing downhole video cameras, mainly there is the following two kinds: the downhole video cameras of independent memory-type is unable to uploading pictures,
Downhole conditions can not be observed on ground, and are design structure of the lighting module together with sensitive chip, cause instrument
Operating temperature is relatively low, is not suitable in deep-well or severe hole condition operation；The downhole video cameras transmitted using fiber optic cables, Ke Yishi
When uploaded videos, but also need to prepare fiber optic cables, go into the well at high cost.The front of existing lighting unit direct projection camera,
It is likely to result in front grain light-reflection, it is inaccurate that camera surveys light.In order to make up disadvantages described above, we are in camera structure, illumination
It is all redesigned in structure.
Summary of the invention
In order to overcome downhole video cameras illuminate so that sensitive chip temperature increase and limit instrument operating temperature and make
Use environment.The purpose of the utility model is to provide a kind of downhole optic fiber imaging camera machine, due to the use of imaging fibre in imaging,
So that light structures and sensitive chip separate, so that the operating temperature of instrument improves, headlamp and central axis are set at 25 ° of angles
Meter, clearer can either illuminate the borehole wall, and avoid because light cause by force very much camera acquisition vision signal have it is reflective；Headlamp
And imaging len Front-end Design is equipped with high-temperature and high-presure resistent light transmission sapphire glass window, so that instrument high temperature high voltage resistant.
To achieve the above object, the utility model uses following technical scheme:
A kind of downhole optic fiber imaging camera machine mainly includes the spread of the rumours unit, video compressing unit, storage unit, imaging list
Member, lighting unit；
Wherein, imaging unit output end is connected with video compressing unit, video compressing unit output end one end and the spread of the rumours list
Member is connected, and the other end is connected with storage unit.
Imaging unit includes forward sight camera and side view camera, wherein forward sight camera includes lens one, imaging fibre
One, lens two, sensitive chip one, side view camera include lens three, imaging fibre two, lens four, sensitive chip two, lens one
High-temperature and high-presure resistent light transmission sapphire glass is respectively provided with three front end of lens.
Lighting unit includes forward sight lighting module and side view lighting module, wherein forward sight lighting module uses 9 high temperature resistants
LED light is evenly distributed on the structure of central axis, and the direction of LED light and instrument axis direction are in 25 ° of angles, each LED light front end
Equipped with high-temperature and high-presure resistent light transmission sapphire glass.
The working principle of downhole optic fiber imaging camera machine: forward sight image and side elevation image are respectively through lens one and lens in well
Three converge in imaging fibre one and imaging fibre two, in the other end of imaging fibre one and imaging fibre two respectively through lens two
Forward sight image in well and side elevation image are restored to respectively on sensitive chip one and sensitive chip two with lens four, sensitive chip one
After being digitized with sensitive chip two, the digitlization forward sight image and side elevation image of 25-30 frame per second are exported, both numbers
Change image, send video compressing unit, carry out video compress, the video image after compressing is logical with the digitized image of 2 frame per second
It crosses the spread of the rumours unit and is transmitted to ground system through logging cable, stored with the digitized image of 25-30 frame per second into storage unit,
When instrument proposes well head, read on ground.
The utility model has the advantages that:
1, camera has used imaging fibre, makes sensitive chip far from heat producing light sources, is conducive to the work temperature for improving instrument
Degree.
2. the direction of 9 illuminating LED lamps of forward sight and instrument axis direction are in 25 ° of angles, this structure can either be clearer
Illuminate the borehole wall, but avoid because light cause by force very much camera acquisition vision signal have it is reflective.
3. each LED light front end is equipped with high-temperature and high-presure resistent light transmission sapphire glass, so that instrument can be with high temperature or severe
Operation under hole condition.
4, due to having used imaging fibre, the volume of side view camera is further decreased, and is further simplified apparatus structure.
Detailed description of the invention
The instrument composition schematic diagram of Fig. 1 the utility model；
The lighting unit apparatus structure schematic diagram of Fig. 2 the utility model.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of downhole optic fiber imaging camera machine mainly includes the spread of the rumours unit 11, video compressing unit
12, storage unit 13, imaging unit 14, forward sight lighting unit 15, side view lighting unit 16；
Wherein, 14 output end of imaging unit is connected with video compressing unit 12,12 output end one end of video compressing unit with
The spread of the rumours unit 11 is connected, and the other end is connected with storage unit 13.
Forward sight camera includes lens 1, imaging fibre 1, lens 2 22, sensitive chip 1, side view camera
Including lens 3 23, imaging fibre 2 26, lens 4 24, sensitive chip 2 28, lens 1 and 3 23 front end of lens fill respectively
There is high-temperature and high-presure resistent light transmission sapphire glass.
Lighting unit includes forward sight lighting module and side view lighting module, wherein forward sight lighting module uses 9 high temperature resistants
LED light is evenly distributed on the structure of central axis, and the direction of LED light and instrument axis direction are in 25 ° of angles, each LED light front end
Equipped with high-temperature and high-presure resistent light transmission sapphire glass.
The working principle of downhole optic fiber imaging camera machine: forward sight image and side elevation image be respectively through lens 1 and thoroughly in well
Mirror 3 23 converges in imaging fibre 1 and imaging fibre 2 26, in the other end of imaging fibre 1 and imaging fibre 2 26
Forward sight image in well and side elevation image are restored to sensitive chip 1 and photosensitive respectively through lens 2 22 and lens 4 24 respectively
On chip 2 28, after sensitive chip 1 and sensitive chip 2 28 are digitized, the digitlization forward sight of 25-30 frame per second is exported
Image and side elevation image, both digitized images send video compressing unit 12, carry out video compress, the video after compressing
Image is transmitted to ground system through logging cable by the spread of the rumours unit 11 with the digitized image of 2 frame per second, with 25-30 per second
The digitized image of frame is stored into storage unit 13, when instrument proposes well head, is read on ground.
As shown in Fig. 2, headlamp 6, lighting window sapphire glass 8 and the installation of one window sapphire glass 9 of imaging lens system
Onto lens mount 6, what the window of the cam lens 1 of the instrument and the window of headlamp 7 were all separate from, and
There is the slot for being used to install sealing ring together on each window inner wall, the window of 9 headlamps 7 is circumferentially uniformly distributed
, and be in each 25 ° of angle, one window of lighting window sapphire glass 8 and imaging lens system with the central axis of instrument
Sapphire glass 9 is installed in corresponding window, and the circular circlip of inner utilization fixes lens 1, lens mount 6
There are the window sapphire glass 9 and outside of 3 slot connection lens 1 on end face, in order to be able to lens 1 when will go into the well
The bubble that surface generates preferably is drained.
The above is only the preferred embodiment of the present invention, and the protection scope of the utility model is not limited thereto.
Any equivalent transformation based on the basis of technical solutions of the utility model belongs within scope of protection of the utility model.
Claims (4)
1. a kind of downhole optic fiber imaging camera machine, it is characterised in that: mainly include the spread of the rumours unit, video compressing unit, storage list
Member, imaging unit, forward sight lighting unit, side view lighting unit；
Wherein, image-forming module output end is connected with video compressing module, video compressing unit output end one end and the spread of the rumours unit phase
Even, the other end is connected with storage unit.
2. downhole optic fiber imaging camera machine according to claim 1, it is characterised in that: the imaging unit includes that forward sight is taken the photograph
As head and side view camera, wherein forward sight camera includes lens one, imaging fibre one, lens two, sensitive chip one, side view
Camera includes lens three, imaging fibre two, lens four, sensitive chip two, and lens one and three front end of lens are respectively provided with resistance to height
The light transmission sapphire glass of warm high pressure.
3. downhole optic fiber imaging camera machine according to claim 1, which is characterized in that the lighting unit includes that forward sight is shone
Bright module and side view lighting module, wherein forward sight lighting module is evenly distributed on the knot of central axis using 9 high temperature resistant LED light
Structure, the direction of LED light and instrument axis direction are in 25 ° of angles, and each LED light front end is equipped with high-temperature and high-presure resistent light transmission sapphire
Glass.
4. the working principle of downhole optic fiber imaging camera machine according to claim 1, it is characterised in that: forward sight image in well
Converged in imaging fibre one and imaging fibre two through lens one and lens three respectively with side elevation image, imaging fibre one and at
As forward sight image in well and side elevation image are restored to photosensitive core through lens two and lens four respectively by the other end of optical fiber two respectively
On piece one and sensitive chip two, after sensitive chip one and sensitive chip two are digitized, the digitlization of 25-30 frame per second is exported
Forward sight image and side elevation image, both digitized images send video compressing unit, carry out video compress, the view after compressing
Frequency image is transmitted to ground system through logging cable by the spread of the rumours unit with the digitized image of 2 frame per second, with 25-30 per second
The digitized image of frame is stored into storage unit, when instrument proposes well head, is read on ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074761.1U CN208316851U (en) | 2018-07-06 | 2018-07-06 | A kind of downhole optic fiber imaging camera machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074761.1U CN208316851U (en) | 2018-07-06 | 2018-07-06 | A kind of downhole optic fiber imaging camera machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316851U true CN208316851U (en) | 2019-01-01 |
Family
ID=64717480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821074761.1U Expired - Fee Related CN208316851U (en) | 2018-07-06 | 2018-07-06 | A kind of downhole optic fiber imaging camera machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208316851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632516A (en) * | 2018-07-06 | 2018-10-09 | 北京捷威思特科技有限公司 | A kind of downhole optic fiber imaging camera machine |
| CN110242282A (en) * | 2019-07-19 | 2019-09-17 | 西安威盛电子科技股份有限公司 | A kind of downhole video instrument |
-
2018
- 2018-07-06 CN CN201821074761.1U patent/CN208316851U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632516A (en) * | 2018-07-06 | 2018-10-09 | 北京捷威思特科技有限公司 | A kind of downhole optic fiber imaging camera machine |
| CN110242282A (en) * | 2019-07-19 | 2019-09-17 | 西安威盛电子科技股份有限公司 | A kind of downhole video instrument |
| CN110242282B (en) * | 2019-07-19 | 2024-04-19 | 西安威盛电子科技股份有限公司 | Underground video instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |