CN201747351U - Lateral multi-lens endoscopic video well logging device - Google Patents
Lateral multi-lens endoscopic video well logging device Download PDFInfo
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- CN201747351U CN201747351U CN2010202346088U CN201020234608U CN201747351U CN 201747351 U CN201747351 U CN 201747351U CN 2010202346088 U CN2010202346088 U CN 2010202346088U CN 201020234608 U CN201020234608 U CN 201020234608U CN 201747351 U CN201747351 U CN 201747351U
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Abstract
The utility model discloses a lateral multi-lens endoscopic video well logging device, comprising a ground mechanism and an onsite mechanism, wherein a cavity of a lateral optical head component of the onsite mechanism is internally provided with a light cone fixing plate a center of which is provided with a straight light core and an outer ring of which is provided with a circle of 90-degree bending light cone, and small ends of the straight light cone and the 90-degree bending light cone are both coupled with gradient index lenses; two light source plates are sleeved at the outer side of the optical head body in the vertical direction; the lateral optical head component collects lights in the logged well and forms images, data of an imaging CCD is then transmitted via a control circuit board to a modulation/demodulation circuit board on the ground to be demodulated, and the demodulated data is sent to a computer to obtain image information of well wall and well bottom; an onsite control instruction sent by the computer is modulated by the modulation/demodulation circuit board and then sent to an onsite control circuit board, and the control circuit board controls the illuminance of the imaging CCD as well as the illuminance of a first light source plate and a second light source plate; with the help of the device according to the utility model, the images of well wall and well bottom can be obtained.
Description
Technical field
The utility model relates to a kind of video well-logging device, particularly a kind of lateral multi-lens spy video well-logging device.
Background technology
Down-hole video well-logging method generally adopts in the logging instrument bottom and places camera at present, is used to observe shaft bottom and side direction image, can obtain shaft bottom image clearly.When being used for the side direction imaging, because camera lens optical axis is placed the image that is difficult to obtain sidewall along the borehole axis direction, owing to limit by hole diameter or caliber and existing camera object distance, it is impossible radially placing an existing camera simultaneously.Trace it to its cause, we think that the designed instrument of video well-logging technology all adopts the scheme of placing camera in the instrument bottom under the existing well, attempts to gather simultaneously sidewall and shaft bottom image.Because this placement schemes makes the primary optical axis of light source and imaging lens be parallel to the axis of the borehole wall and sleeve, sees through the window irradiation shaft bottom, plane (or convex surface) that is positioned at the instrument bottom and accepts reflection ray.Obvious this scheme is performed meritorious deeds never to be obliterated for identification trouble of lost tool in hole, the auxiliary salvaging.When being used for the side direction imaging, because in angular field of view, reflection ray is few nearby, and reflection ray is still less decayed greatly at a distance, can't satisfy along the borehole axis direction on the principle and place, and obtains the requirement of sidewall image.Popular says, just as people's eye system, and look straight ahead, what see clearly is the image in the place ahead, can only obtain fuzzy and unsharp image for side direction.Expect the side direction picture rich in detail, have only the direct-view side direction can.
In existing defectoscope,, adopt from axle spheric reflection (rotation) mirror scheme for the image of thorax in obtaining.This method can obtain and the most similar image of the direct observation tube inner surface of human eye, but if will obtain the turn back effect of light of sensor the best, must make optimized design to the geometric parameter of designed off-axis spherical mirror, be imaged as the distortion figure for the grid that is affixed on inner surface simultaneously.At last, also be that the greatest factor that limits its use needs spherical mirror is rotated exactly.
The various universal or special camera that existing scheme is adopted, volume quite big (diameter and identical length are when big) except physical dimension own (length is generally tens to tens millimeters), require the general minimum of operating distance (object distance) also more than 100mm.,, can only place only in the instrument of φ 43mm in minimum outer diameter along the borehole axis direction even in the instrument of φ 87mm, do not place such camera lens at all along the hole diameter direction.The side direction camera lens of employing is arranged in the literature, utilize rotation to carry out the description of the comprehensive logging method of the side direction borehole wall, it can use in 6 inches wells.Its camera lens that uses is fish eye lens simultaneously, and its radius of curvature is very little, can produce bigger distortion, must proofread and correct, and the depth of field is less, needs rotation just can obtain 360 degree all-around videos, and use is very restricted.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the purpose of this utility model is to provide a kind of lateral multi-lens spy video well-logging device, use in down-holes such as oil gas well, salt wells, can obtain the side direction image of down-hole casing, the borehole wall etc., or the video that is applied to pipeline inner wall detects, and has the function of obtaining the same cross section of borehole wall different azimuth video or image information simultaneously.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A kind of lateral multi-lens spy video well-logging device, comprise ground mechanism 8 and the on-the-spot mechanism 9 that links to each other by cable with ground mechanism 8, ground mechanism 8 comprises computer 1, the communication terminal of computer 1 links to each other with the communication terminal of modulation-demodulation circuit plate 2, the communication terminal of modulation-demodulation circuit plate 2 links to each other with the communication terminal of control circuit board 3 in the on-the-spot mechanism 9, the communication terminal of control circuit board 3 links to each other with the communication terminal of imaging CCD4, the control end of control circuit board 3 respectively with first light source board 6, secondary light source plate 7 links to each other, and imaging CCD4 is in the large end face of crooked light cone 16 of degree of 90 in the same plane and direct light awl 15 facing to side direction optics head member 5.
Described first light source board 6 is identical with secondary light source plate 7 structures, comprise annular circuit board 10, annular circuit board 10 is provided with a circle light emitting diode 11, and lead 12 1 ends link to each other with output on the annular circuit board 10, and the other end is connected with the input of control circuit board 4.
Described side direction optics head member 5 comprises optical head main body 13, optical head main body 13 is divided into two cavitys up and down, be provided with light cone fixed head 14 in the upper cavity, the center of light cone fixed head 14 is provided with a direct light awl 15, the outer ring evenly is provided with the crooked light cone 16 of a circle 90 degree, the small end of the crooked light cone 16 of each 90 degree is coupled with gradient-index lens I 17, the other end of gradient-index lens I 17 faces toward tested well testing inwall by the hole that has on the optical head main body 13, direct light is bored 15 small ends and is coupled with gradient-index lens II 18, and the other end of gradient-index lens II 18 is facing to tested shaft bottom face; First light source board 6 and secondary light source plate 7 upper and lower sleeves are connected on the outside of optical head main body 13.
Be socketed with annular hyaline test 19 between first light source board 6 and secondary light source plate 7, the MTD place of gradient-index lens I 17 is just in time enclosed one in the position of annular hyaline test 19.
The big end of the big end of direct light awl 15 and the crooked light cone 16 of 90 degree is in the same plane.
Because the utility model is provided with side direction optics head member 5, can comprehensively obtain 360 degree side direction and the shaft bottom or the image at the pipe end in well or the pipeline.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present utility model.
Fig. 2 is the structural representation of light source board in the utility model.
Fig. 3 is the sectional drawing of side direction optics head member 5 in the utility model.
Fig. 4 is the structural representation of gradient-index lens of the present utility model.
Fig. 5 is the structural representation of the crooked light cone 16 of 90 degree of the present utility model.
Fig. 6 is the structural representation of the utility model direct light awl 15.
Fig. 7 is the structural representation of the utility model light cone fixed head 14.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operating principle are described in detail.
With reference to Fig. 1, a kind of lateral multi-lens spy video well-logging device, comprise ground mechanism 8 and the on-the-spot mechanism 9 that links to each other by cable with ground mechanism 8, ground mechanism 8 comprises computer 1, the communication terminal of computer 1 links to each other with the communication terminal of modulation-demodulation circuit plate 2, the communication terminal of the control circuit board 3 in another communication terminal of modulation-demodulation circuit plate 2 and the on-the-spot mechanism 9 links to each other, the communication terminal of control circuit board 3 links to each other with the communication terminal of imaging CCD4, the control end of control circuit board 3 respectively with first light source board 6, secondary light source plate 7 links to each other, and CCD4 spends the big transverse plane imaging of crooked light cones 16 and direct light awl 15 to being in 90 of same plane in the side direction optical head spare 5.
With reference to Fig. 2, described first light source board 6 is identical with secondary light source plate 7 structures, comprises annular circuit board 10, and annular circuit board 10 is provided with a circle light emitting diode 11, lead 12 1 ends link to each other with output on the annular circuit board 10, and the other end is connected with the input of control circuit board 4.The wavelength of first light source board 6, secondary light source plate 7 can be identical, also can be different, when adopting the light source of different wave length, can make full use of the spectral characteristic of medium.
Light emitting diode 11 has an angle α with the interplanar of circuit board 10, and the α scope is between 0 °-90 °, and this angle α makes the optical axis of light emitting diode 11 and tested plane, depth point meet on the sidewall.
With reference to Fig. 3, described side direction optics head member 5 comprises optical head main body 13, optical head main body 13 is divided into two cavitys up and down, be provided with two light cone fixed heads 14 up and down in the upper cavity, the center of light cone fixed head 14 is provided with a direct light awl 15, the outer ring evenly is provided with the crooked light cone 16 of a circle 90 degree, the small end of the crooked light cone 16 of each 90 degree is coupled with gradient-index lens I 17, the other end of gradient-index lens I 17 faces toward tested well testing inwall by the hole that has on the optical head main body 13, direct light is bored 15 small ends and is coupled with gradient-index lens II 18, the other end of gradient-index lens II 18 is facing to tested shaft bottom face, first light source board 6 and secondary light source plate 7 upper and lower sleeves are connected on the outside in optical head main body 13, be socketed with annular hyaline test 19 between first light source board 6 and secondary light source plate 7, the MTD place of gradient-index lens I 17 is just in time enclosed one in the position of annular hyaline test 19.
With reference to Fig. 4, gradient-index lens I 17 is identical with gradient-index lens II 18 structures, all is cylindric.
With reference to Fig. 5, the crooked light cone 16 of 90 degree uses as the side direction image guide device, and the small end of the crooked light cone 16 of each 90 degree all is coupled with a gradient-index lens I 17.
With reference to Fig. 6, direct light awl 15 uses as the vertical direction image guide device, the end coupling of the small end of direct light awl 15 and the gradient-index lens II 18 of vertical direction, and the big end of the big end of direct light awl 15 and the crooked light cone 16 of 90 degree is in the same plane.
With reference to Fig. 7, light cone fixed head 14 is divided into two up and down, two profiles are identical, and the center in hole is identical, difference is, the diameter in the hole in the last light cone support plate is bigger than the bore dia in the following light cone flat board, and this is because the tapered cause of the crooked light cone of direct light awl 15 and 90 degree 16, and the thickness of two light cone support plate also can be different simultaneously.
Operating principle of the present utility model is: gradient-index lens I 17 and gradient-index lens II 18 are collected by the light in the well logging, light bores 15 in another end face imaging by 90 crooked light cones 16 of degree and direct light, the big end of 90 crooked light cones 16 of degree and direct light awl 15 is in a plane, be to be imaging plane, CCD4 is to the imaging plane imaging, the data of CCD4 are by control circuit board 3, again by modulation demodulator circuit plate 2 demodulation of cable transmission to ground, data after the demodulation are sent computer 1, obtain the borehole wall and shaft bottom image or video information.
The control instruction to the scene that computer 1 is assigned through 2 modulation of modulation-demodulation circuit plate, is sent field control circuit board 3 by cable, and control circuit board 3 is controlled to the illuminance of picture CCD4 and first light source board 6, secondary light source plate 7.
Claims (6)
1. lateral multi-lens spy video well-logging device, it is characterized in that, comprise ground mechanism (8) and the on-the-spot mechanism (9) that links to each other by cable with ground mechanism (8), ground mechanism (8) comprises computer 1, the communication terminal of computer (1) links to each other with the communication terminal of modulation-demodulation circuit plate (2), the communication terminal of the control circuit board (3) in the communication terminal of modulation-demodulation circuit plate (2) and the on-the-spot mechanism (9) links to each other, another communication terminal of control circuit board (3) links to each other with the communication terminal of imaging CCD (4), the control end of control circuit board (3) respectively with first light source board (6), secondary light source plate (7) links to each other, and imaging CCD (4) is facing to the large end face that is in degree crooked light cone (16) of 90 in the same plane and direct light awl (15) in the side direction optics head member (5).
2. a kind of lateral multi-lens spy video well-logging device according to claim 1, it is characterized in that, described first light source board (6) is identical with secondary light source plate (7) structure, comprise annular circuit board (10), annular circuit board (10) is provided with a circle light emitting diode (11), lead (12) one ends are gone up output with annular circuit board (10) and are linked to each other, and the other end is connected with the input of control circuit board (4).
3. a kind of lateral multi-lens spy video well-logging device according to claim 1, it is characterized in that, described side direction optics head member (5) comprises optical head main body (13), optical head main body (13) is divided into two cavitys up and down, be provided with light cone fixed head (14) in the upper cavity, the center of light cone fixed head (14) is provided with a direct light awl (15), the outer ring evenly is provided with a circle 90 degree crooked light cones (16), the small end of each 90 crooked light cone of degree (16) is coupled with gradient-index lens I (17), the other end of gradient-index lens I (17) faces toward tested well testing inwall by the hole that has on the optical head main body (13), direct light awl (15) small end is coupled with gradient-index lens II (18), the other end of gradient-index lens II (18) is facing to tested shaft bottom face, and first light source board (6) and secondary light source plate (7) upper and lower sleeve are connected on the outside in optical head main body (13).
4. a kind of lateral multi-lens spy video well-logging device according to claim 1, it is characterized in that, be socketed with annular hyaline test (19) between first light source board (6) and secondary light source plate (7), the MTD place of gradient-index lens I (17) is just in time enclosed one in the position of annular hyaline test (19).
5. a kind of lateral multi-lens spy video well-logging device according to claim 1 is characterized in that, the big end of the big end of direct light awl (15) and the 90 crooked light cones of degree (16) is in the same plane.
6. a kind of lateral multi-lens spy video well-logging device according to claim 1, it is characterized in that, light emitting diode (11) on first light source board (6) and the secondary light source plate (7) has an angle α with the interplanar of circuit board (10), and the α scope is between 0 °-90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202346088U CN201747351U (en) | 2010-06-23 | 2010-06-23 | Lateral multi-lens endoscopic video well logging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202346088U CN201747351U (en) | 2010-06-23 | 2010-06-23 | Lateral multi-lens endoscopic video well logging device |
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| Publication Number | Publication Date |
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| CN201747351U true CN201747351U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202346088U Expired - Lifetime CN201747351U (en) | 2010-06-23 | 2010-06-23 | Lateral multi-lens endoscopic video well logging device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886540A (en) * | 2010-06-23 | 2010-11-17 | 西安石油大学 | Lateral multi-lens composite imaging video well-logging device |
| CN102536201A (en) * | 2011-12-20 | 2012-07-04 | 西安思坦仪器股份有限公司 | Multi-arm imaging data correcting method |
| WO2014076440A1 (en) * | 2012-11-15 | 2014-05-22 | Calidus Engineering Limited | Camera assembly for use in a subterranean well |
| CN111580213A (en) * | 2020-06-18 | 2020-08-25 | 中国建筑材料科学研究总院有限公司 | Double-straight-area curved optical fiber cone and application thereof |
-
2010
- 2010-06-23 CN CN2010202346088U patent/CN201747351U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886540A (en) * | 2010-06-23 | 2010-11-17 | 西安石油大学 | Lateral multi-lens composite imaging video well-logging device |
| CN101886540B (en) * | 2010-06-23 | 2012-10-24 | 西安石油大学 | Lateral multi-lens composite imaging video well-logging device |
| CN102536201A (en) * | 2011-12-20 | 2012-07-04 | 西安思坦仪器股份有限公司 | Multi-arm imaging data correcting method |
| CN102536201B (en) * | 2011-12-20 | 2014-07-02 | 西安思坦仪器股份有限公司 | Multi-arm imaging data correcting method |
| WO2014076440A1 (en) * | 2012-11-15 | 2014-05-22 | Calidus Engineering Limited | Camera assembly for use in a subterranean well |
| CN111580213A (en) * | 2020-06-18 | 2020-08-25 | 中国建筑材料科学研究总院有限公司 | Double-straight-area curved optical fiber cone and application thereof |
| CN111580213B (en) * | 2020-06-18 | 2023-01-31 | 中国建筑材料科学研究总院有限公司 | Double-straight-area curved optical fiber cone and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |