CN101886540B - Lateral multi-lens composite imaging video well-logging device - Google Patents
Lateral multi-lens composite imaging video well-logging device Download PDFInfo
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- CN101886540B CN101886540B CN201010207380A CN201010207380A CN101886540B CN 101886540 B CN101886540 B CN 101886540B CN 201010207380 A CN201010207380 A CN 201010207380A CN 201010207380 A CN201010207380 A CN 201010207380A CN 101886540 B CN101886540 B CN 101886540B
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Abstract
The invention discloses a lateral multi-lens composite imaging video well-logging device. The device comprises a ground mechanism and a site mechanism, wherein a light cone fixing plate is arranged in the cavity of a lateral optical head component of the site mechanism, the center of the light cone fixing plate is provided with a straight light cone, the outer ring is provided with a circle of 90-degree bent light cones, and the small ends of the straight light cone and the 90-degree bent light cones are coupled with graded index lenses; two light source plates are sleeved outside an optical head main body up and down; light in the logged well is collected and imaged by the lateral optical head component, the data of an imaging charge coupled device (CCD) is transmitted to a ground modulating/demodulating circuit board for demodulation through a control circuit board, and the demodulated data is sent to a computer, so that the image information of the well wall and the well bottom is obtained; and a control command for a site from the computer is modulated by the modulating/demodulating circuit board and then is sent to a site control circuit board, and the luminance of the imaging CCD, the first light source plate and the second light source plate are controlled by the control circuit board, so that the lateral multi-lens composite imaging video well-logging device can obtain the images of the well wall and the well bottom.
Description
Technical field
The present invention relates to a kind of video well-logging device, particularly a kind of lateral multi-lens composite imaging video well-logging device.
Background technology
Down-hole video well-logging method generally is employed 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 instrument that the video well-logging technology is designed under the existing well all is employed in the scheme that camera is placed in the instrument bottom, 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.Be used for side direction when 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 the off-axis spherical mirror that designed, be imaged as the distortion figure for the grid that is affixed on inner surface simultaneously.At last, also be that the most important factor that limits its use need be rotated spherical mirror exactly.
The various general or special-purpose 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.In minimum outer diameter only in the instrument of φ 43mm,, can only place along the borehole axis direction even in the instrument of φ 87mm, placed not such camera lens along the hole diameter direction is basic.The side direction camera lens of employing is arranged in document, 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, uses to receive very big restriction.
Summary of the invention
In order to overcome the defective of above-mentioned prior art; The object of the present invention is to provide a kind of lateral multi-lens composite imaging 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 be applied to the Video Detection of pipeline inner wall, have 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, technical scheme of the present invention is achieved in that
A kind of lateral multi-lens composite imaging video well-logging device; Comprise ground mechanism 8 and the on-the-spot mechanism 9 that links to each other through 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, and 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, and 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 links to each other with first light source board 6, secondary light source plate 7 respectively, and imaging CCD4 is in the crooked light cone 16 of the degree of 90 same plane in and direct light facing to side direction optics head member 5 and bores 15 large end face.
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 output links to each other on lead 12 1 ends and 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, and 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 through the hole that has on the optical head main body 13, and 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.
Between first light source board 6 and secondary light source plate 7, be socketed with annular hyaline test 19, 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 present invention 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 sketch map of the present invention.
Fig. 2 is the structural representation of light source board among the present invention.
Fig. 3 is the sectional drawing of side direction optics head member 5 among the present invention.
Fig. 4 is the structural representation of gradient-index lens of the present invention.
Fig. 5 is the structural representation of the crooked light cone 16 of 90 degree of the present invention.
Fig. 6 is the structural representation of direct light awl 15 of the present invention.
Fig. 7 is the structural representation of light cone fixed head 14 of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operating principle are described in detail.
With reference to Fig. 1; A kind of lateral multi-lens composite imaging video well-logging device; Comprise ground mechanism 8 and the on-the-spot mechanism 9 that links to each other through 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, and 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, and 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 links to each other with first light source board 6, secondary light source plate 7 respectively, and CCD4 is to the crooked light cone 16 of 90 degree that is in same plane in the side direction optical head spare 5 and the big transverse plane imaging of direct light awl 15.
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; Output links to each other on lead 12 1 ends and 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.
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, is provided with two light cone fixed heads 14 up and down in the upper cavity, and 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, and the other end of gradient-index lens I 17 faces toward tested well testing inwall through the hole that has on the optical head main body 13, and 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 is connected in the outside of optical head main body 13 with secondary light source plate 7 upper and lower sleeves, between first light source board 6 and secondary light source plate 7, is socketed with annular hyaline test 19, and 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, and 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 difference simultaneously.
Operating principle of the present invention is: gradient-index lens I 17 is collected by the light in the well logging with gradient-index lens II 18; Light bores 15 in another end face imaging through crooked light cone 16 of 90 degree and direct light; The big end of crooked light cone 16 of 90 degree and direct light awl 15 is to be imaging plane in a plane, and CCD4 forms images to imaging plane; The data of CCD4 are through control circuit board 3; Through modulation demodulator circuit plate 2 demodulation of cable transmission to ground, the data after the demodulation are sent computer 1, obtain the borehole wall and shaft bottom image or video information again.
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 through 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 (5)
1. lateral multi-lens composite imaging 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 through 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), and 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, and 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) links to each other with first light source board (6), secondary light source plate (7) respectively, 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);
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), and the outer ring evenly is provided with a circle 90 degree crooked light cones (16), and 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 through 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), and 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).
2. a kind of lateral multi-lens composite imaging 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, comprises annular circuit board (10), and 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 composite imaging video well-logging device according to claim 1; It is characterized in that; Between first light source board (6) and secondary light source plate (7), be socketed with annular hyaline test (19), the MTD place of gradient-index lens I (17) is just in time enclosed one in the position of annular hyaline test (19).
4. a kind of lateral multi-lens composite imaging 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.
5. a kind of lateral multi-lens composite imaging video well-logging device according to claim 2; 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 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 |
|---|---|---|---|
| CN201010207380A CN101886540B (en) | 2010-06-23 | 2010-06-23 | Lateral multi-lens composite imaging video well-logging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010207380A CN101886540B (en) | 2010-06-23 | 2010-06-23 | Lateral multi-lens composite imaging video well-logging device |
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| CN101886540A CN101886540A (en) | 2010-11-17 |
| CN101886540B true CN101886540B (en) | 2012-10-24 |
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| CN103015977B (en) * | 2012-12-11 | 2015-06-03 | 武汉科技大学 | Panoramic video scanning device for jack shaft |
| CN103063684B (en) * | 2012-12-20 | 2015-09-23 | 西安石油大学 | A kind of inner-walls of duct panorama sketch display and defect positioning method |
| CN104793909B (en) * | 2014-01-17 | 2018-11-23 | 浙江图维科技股份有限公司 | Binary channels space picture simultaneous display and control method and its realization system |
| CN106481331A (en) * | 2016-11-30 | 2017-03-08 | 西安凯特维尔能源科技有限公司 | High-performance down-hole imaging lens and image processing system |
| CN106930730A (en) * | 2017-03-10 | 2017-07-07 | 太原理工大学 | A kind of pumping method of abandoned mine goaf coal bed gas |
| 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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| CN1050618A (en) * | 1989-09-27 | 1991-04-10 | 中国科学院西安光学精密机械研究所 | Directly obtain the method and the device thereof of borehole wall image with synchronous slit scan photography |
| CN2146093Y (en) * | 1992-12-25 | 1993-11-10 | 北京铁路局北京科学技术研究所 | Deep well colour TV observation appliance |
| EP0846840A2 (en) * | 1996-12-06 | 1998-06-10 | Schlumberger Limited | Video inspection or logging tool |
| CN2575298Y (en) * | 2002-09-28 | 2003-09-24 | 大庆油田有限责任公司 | Drillhole pile holing hole diameter umbrella shape measuring gauge |
| US6697102B1 (en) * | 2000-10-31 | 2004-02-24 | Deepsea Power & Light Company | Bore hole camera with improved forward and side view illumination |
| JP2004357111A (en) * | 2003-05-30 | 2004-12-16 | Kowa:Kk | Camera apparatus for well |
| CN201747351U (en) * | 2010-06-23 | 2011-02-16 | 西安石油大学 | Lateral multi-lens endoscopic video well logging device |
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2010
- 2010-06-23 CN CN201010207380A patent/CN101886540B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050618A (en) * | 1989-09-27 | 1991-04-10 | 中国科学院西安光学精密机械研究所 | Directly obtain the method and the device thereof of borehole wall image with synchronous slit scan photography |
| CN2146093Y (en) * | 1992-12-25 | 1993-11-10 | 北京铁路局北京科学技术研究所 | Deep well colour TV observation appliance |
| EP0846840A2 (en) * | 1996-12-06 | 1998-06-10 | Schlumberger Limited | Video inspection or logging tool |
| US6697102B1 (en) * | 2000-10-31 | 2004-02-24 | Deepsea Power & Light Company | Bore hole camera with improved forward and side view illumination |
| CN2575298Y (en) * | 2002-09-28 | 2003-09-24 | 大庆油田有限责任公司 | Drillhole pile holing hole diameter umbrella shape measuring gauge |
| JP2004357111A (en) * | 2003-05-30 | 2004-12-16 | Kowa:Kk | Camera apparatus for well |
| CN201747351U (en) * | 2010-06-23 | 2011-02-16 | 西安石油大学 | Lateral multi-lens endoscopic video well logging device |
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| CN101886540A (en) | 2010-11-17 |
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