CN110656927B - Fracture image measuring method based on borehole television - Google Patents
Fracture image measuring method based on borehole television Download PDFInfo
- Publication number
- CN110656927B CN110656927B CN201910789725.6A CN201910789725A CN110656927B CN 110656927 B CN110656927 B CN 110656927B CN 201910789725 A CN201910789725 A CN 201910789725A CN 110656927 B CN110656927 B CN 110656927B
- Authority
- CN
- China
- Prior art keywords
- camera module
- rotary camera
- iron ring
- image
- crack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 19
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- E21B47/00—Survey of boreholes or wells
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a fracture image measuring method based on a borehole television, which comprises the steps of continuously shooting along a borehole by the borehole television, arranging an iron ring I and an iron ring II at the lower part of a rotary camera module of the borehole television, and obtaining the proportional relation between the actual length of the iron ring II and the image size in a picture through the distance between the rotary camera module and the iron ring II and the actual width of the iron ring II; the distance between the rotary camera module and the crack of the hole wall is obtained according to the descending distance of the rotary camera module and the geometric relation of the reference protection net, the actual length represented by the image with the single size in the picture is in direct proportion to the distance between the object and the rotary camera module, and therefore the proportional relation between the actual length of the hole wall and the image size can be known; and finally, calculating the hole wall crack in a video according to the proportional relation, and finally obtaining the length and the width of the crack. Therefore, the invention has simple structure and convenient construction, and can quickly and accurately measure the size of the crack; in addition, the crack cannot be greatly influenced in the measuring process.
Description
Technical Field
The invention relates to a method for measuring the size of a fracture, in particular to a fracture image measuring method based on a borehole television.
Background
The developed fractures in the rock stratum are channels for migration of various underground fluids, and underground water, petroleum, coal bed gas and the like stored in the rock stratum can be migrated through the fractures in the rock stratum. Factors for determining the permeability of the crack comprise the size of the crack, the crack degree, the change of crack channels, the tortuosity and the like, wherein the size of the crack is the most main factor influencing the permeability of the crack, so that the permeability of the crack can be evaluated by measuring the size of the crack.
At present, the size of a crack is directly probed mainly by two methods, namely drilling coring and geophysical logging; drilling and coring are to obtain a core through a construction drill hole and lift the core to the ground to measure the size of a fracture; geophysical logging analyzes the size of fractures by measuring physical parameters of the walls of a borehole in the borehole. However, in the two methods, drilling and coring can cause secondary damage to the rock core, and fracture expansion and even rock core crushing are caused; although geophysical logging does not have the defects, the geophysical logging has high construction cost, complicated data analysis and processing and multiple solution. Therefore, a method which does not cause great influence on the fracture, has a simple structure and is convenient to construct, and can quickly and accurately measure the size of the fracture is urgently needed at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a fracture image measuring method based on a borehole television, which has the advantages of simple structure and convenient construction, and can quickly and accurately measure the size of a fracture; in addition, the crack cannot be greatly influenced in the measuring process.
In order to achieve the purpose, the invention adopts the technical scheme that: a fracture image measuring method based on a borehole television comprises a control module, a touch display screen, a lifting machine, a support, a rotary camera module and a reference protection net. The rotary camera module can rotate 360 degrees in the horizontal direction and 180 degrees in the vertical direction; the rotary camera module is fixedly connected with a connecting rope of the lifter, so that the lifter can drive the rotary camera module to ascend and descend in the vertical direction; the control module is respectively connected with the touch display screen, the hoister and the rotary camera module through data lines; according to the protecting wire net include hoop I and hoop II, hoop I and II the same and the homolevel setting of hoop II structure, hoop I is in hoop II directly over, through bracing piece fixed connection between hoop I and the hoop II, hoop I passes through the connecting rod to be fixed in rotatory camera module below, makes rotatory camera module be in the centre of a circle of hoop I, and rotatory camera module and hoop I are in same horizontal plane. The specific measurement process is as follows:
A. drilling construction: constructing a drill hole in a region to be detected, wherein the drill hole is only provided with an orifice pipe at an orifice and is not internally provided with a sleeve;
B. assembling a drilling television: after the elevator, the support, the rotary camera module and the reference protecting net are assembled, the rotary camera module and the reference protecting net are inserted into the hole opening of the drill hole;
C. image observation: the working personnel send out a control signal through the touch display screen, and after the control signal is transmitted to the control module for analysis and processing, the control module controls the rotary camera module to rotate so that the shooting direction of the rotary camera module is vertically downward along the drill hole; then, sending an instruction through the touch display screen, enabling the control module to control the elevator to work, moving the rotary camera module and the reference protective net to the bottom of the drill hole at a set speed, feeding a shot picture back to the touch display screen for displaying from an orifice in real time by the rotary camera module, stopping observation when the rotary camera module reaches the bottom of the drill hole, and storing the image of the whole observation process;
D. measuring the proportional relation between the actual length of the hole wall and the size of the image in the picture: in the process of observing by the drilling television, a worker randomly selects a position point in a displayed image of the hole wall of the drill hole as a reference point, and the drilling television continuously moves towards the hole bottom of the drill hole for observation; when the datum point is blocked by the hoop II and cannot be displayed on the touch display screen, recording the position of the rotary camera module at the moment, sending an instruction to enable the shooting direction of the rotary camera module to rotate towards the position of the datum point until the datum point reaches the horizontal direction and stops, and displaying the datum point on the touch display screen again at the moment; continuing moving and observing towards the bottom of the hole until the reference point is shielded by the hoop I and cannot be displayed on the touch display screen, recording the position of the rotary camera module, obtaining the descending distance of the rotary camera module in the period of time, and finally restoring the shooting direction of the rotary camera module to be vertically downward; knowing the distance between the rotary camera module and the iron ring II and the actual width of the iron ring II, the proportional relation between the actual length of the iron ring II and the image size in the picture can be obtained; the distance between the rotary camera module and the crack of the hole wall is obtained according to the descending distance of the rotary camera module and the geometric relation of the reference protection net, the actual length represented by the image with the single size in the picture is in direct proportion to the distance between the object and the rotary camera module, and therefore the proportional relation between the actual length of the hole wall and the image size can be known;
E. data processing of the observation image: c, transmitting the observation image stored in the step C to a computer for playing, intercepting the image when the crack appears in the picture, and measuring the pixel quantity a occupied by the crack width, the pixel quantity b occupied by the crack length and the pixel quantity C occupied by the iron ring II width in the image by adopting an image processing program;
F. the length and width of the fracture are calculated as follows:
according to the geometric relation of the reference protective net, the distance L between the rotary camera module and the hole wall crack2：
H is the descending distance of the rotary camera module from the shielding of the iron ring II to the shielding of the iron ring I between the rotary camera module and the hole wall crack; theta is an included angle between the connecting line of the rotary camera module and the iron ring II and the vertical direction;
according to the imaging principle, the width e of the hole wall of a part shielded by the iron ring I is as follows:
wherein d is the iron wire diameter for manufacturing the iron ring I and the iron ring II; l is1The distance between the rotary camera module and the iron ring II is set;
according to the proportional relation between the actual length and the image size, the calculation formula of the fracture width m is as follows:
according to the proportional relation between the actual length and the image size, the calculation formula of the fracture length n is as follows:
compared with the prior art, the drilling television is adopted for continuously shooting along the drilling hole, the iron ring I and the iron ring II are arranged at the lower part of the rotary camera module of the drilling television, and the proportional relation between the actual length of the iron ring II and the image size in the picture can be obtained through the distance between the rotary camera module and the iron ring II and the actual width of the iron ring II; the distance between the rotary camera module and the crack of the hole wall is obtained according to the descending distance of the rotary camera module and the geometric relation of the reference protection net, the actual length represented by the image with the single size in the picture is in direct proportion to the distance between the object and the rotary camera module, and therefore the proportional relation between the actual length of the hole wall and the image size can be known; and finally, calculating the hole wall crack in a video according to the proportional relation, and finally obtaining the length and the width of the crack. Therefore, the invention has simple structure and convenient construction, and can quickly and accurately measure the size of the crack; in addition, the crack cannot be greatly influenced in the measuring process.
Drawings
FIG. 1 is a schematic diagram of a borehole television according to the present invention;
FIG. 2 is a schematic view of a rotating camera module in a vertical shooting direction and a crack between the rotating camera module and the crack are shielded by an iron ring II in the using process of the invention;
fig. 3 is a schematic view of the gap between the rotating camera module in the horizontal shooting direction and the crack when the rotating camera module is shielded by the iron ring i in the use process of the invention.
In the figure: 1-rotating the camera module; 2-a connecting rod; 3-iron ring I; 4-iron ring II; 5, drilling; 6-crack.
Detailed Description
The present invention will be further explained below.
As shown in the figure, the borehole television adopted by the invention comprises a control module, a touch display screen, a lifter, a bracket, a rotary camera module 1 and a reference protective net. The rotary camera module 1 can rotate 360 degrees in the horizontal direction and 180 degrees in the vertical direction; the rotary camera module 1 is fixedly connected with a connecting rope of a lifter, so that the lifter can drive the rotary camera module 1 to ascend and descend in the vertical direction; the control module is respectively connected with the touch display screen, the hoister and the rotary camera module 1 through data lines; refer to the protecting wire net and include hoop I3 and hoop II 4, hoop I3 and hoop II 4 the same and the homolevel setting of hoop structure, hoop I3 is in hoop II 4 directly over, through bracing piece fixed connection between hoop I3 and the hoop II 4, hoop I3 passes through connecting rod 2 to be fixed in 1 below rotatory camera module, makes rotatory camera module 1 be in the centre of a circle of hoop I3, and rotatory camera module 1 is in same horizontal plane with hoop I3. The specific measurement process is as follows:
A. and (5) drilling construction: constructing a drill hole 5 in a region to be detected, wherein the drill hole 5 is only provided with an orifice pipe at an orifice, and a sleeve is not arranged inside the drill hole 5;
B. assembling a drilling television: after the elevator, the support, the rotary camera module 1 and the reference protecting net are assembled, the rotary camera module 1 and the reference protecting net extend into an orifice of the drill hole 5;
C. image observation: the working personnel send out a control signal through the touch display screen, after the control signal is transmitted to the control module for analysis and processing, the control module controls the rotary camera module 1 to rotate, so that the shooting direction of the rotary camera module is vertically downward along the drill hole 5; then, sending an instruction through a touch display screen, enabling a control module to control a hoist to work, moving the rotary camera module 1 and the reference protective net to the bottom of the drill hole 5 at a set speed, feeding a shot picture back to the touch display screen for displaying from an orifice in real time by the rotary camera module 1, stopping observation when the rotary camera module 1 reaches the bottom of the hole, and storing the image of the whole observation process;
D. measuring the proportional relation between the actual length of the hole wall and the size of the image in the picture: in the process of observing by the drilling television, a worker randomly selects a position point in a displayed image of the hole wall of the drill hole as a reference point, and the drilling television continuously moves towards the hole bottom of the drill hole for observation; when the reference point is shielded by the iron ring II 4 and cannot be displayed on the touch display screen, recording the position of the rotary camera module 1 at the moment, sending an instruction to enable the shooting direction of the rotary camera module 1 to rotate towards the position of the reference point until the reference point is in the horizontal direction, and then displaying the reference point on the touch display screen again; continuing moving and observing towards the bottom of the hole until the reference point is shielded by the iron ring I3 and can not be displayed on the touch display screen, recording the position of the rotary camera module 1, obtaining the descending distance of the rotary camera module 1 in the period of time, and finally, restoring the shooting direction of the rotary camera module 1 to be vertical downward; knowing the distance between the rotary camera module 1 and the iron ring II 4 and the actual width of the iron ring II 4, the proportional relation between the actual length of the iron ring II 4 and the image size in the picture can be obtained; the distance between the rotary camera module 1 and the hole wall fracture 6 is obtained according to the descending distance of the rotary camera module 1 and the geometric relation of the reference protection net, the actual length represented by the image with the single size in the picture is in direct proportion to the distance between the object and the rotary camera module, and therefore the proportional relation between the actual length of the hole wall and the image size can be known;
E. data processing of the observation image: c, transmitting the observation image stored in the step C to a computer for playing, intercepting the image when the crack 6 appears in the picture, and measuring the pixel quantity a occupied by the width of the crack 6, the pixel quantity b occupied by the length of the crack 6 and the pixel quantity C occupied by the width of the iron ring II in the image by adopting an image processing program;
F. the length and width of the fracture are calculated as follows:
according to the geometric relation of the reference protecting net, the distance L between the rotary camera module and the hole wall crack 62：
In the formula, h is the descending distance of the rotary camera module 1 from the shielding of the iron ring II 4 to the shielding of the iron ring I3 between the rotary camera module and the hole wall crack 6; theta is an included angle between the connecting line of the rotary camera module 1 and the iron ring II 4 and the vertical direction;
according to the imaging principle, the width e of a part of the hole wall shielded by the iron ring I3 is as follows:
in the formula, d is the iron wire diameter for manufacturing the iron ring I3 and the iron ring II 4; l is1The distance between the rotary camera module and the iron ring II 4 is set;
according to the proportional relation between the actual length and the image size, the calculation formula of the width m of the crack 6 is as follows:
according to the proportional relation between the actual length and the image size, the calculation formula of the crack 6 length n is as follows:
Claims (1)
1. a fracture image measuring method based on a borehole television is characterized by comprising the following steps: the adopted borehole television comprises a control module, a touch display screen, a lifter, a support, a rotary camera module and a reference protecting net; the rotary camera module can rotate 360 degrees in the horizontal direction and 180 degrees in the vertical direction; the rotary camera module is fixedly connected with a connecting rope of the lifter, so that the lifter can drive the rotary camera module to ascend and descend in the vertical direction; the control module is respectively connected with the touch display screen, the hoister and the rotary camera module through data lines; the reference protecting net comprises an iron ring I and an iron ring II, the iron ring I and the iron ring II are identical in structure and are arranged horizontally, the iron ring I is located right above the iron ring II, the iron ring I and the iron ring II are fixedly connected through a supporting rod, the iron ring I is fixed at the lower end of the rotary camera module through a connecting rod, the rotary camera module is located in the center of the iron ring I, and the horizontal shooting direction of the rotary camera module and the iron ring I are located on the same horizontal plane; the specific measurement process is as follows:
A. drilling construction: constructing a drill hole in a region to be detected, wherein the drill hole is only provided with an orifice pipe at an orifice and is not internally provided with a sleeve;
B. assembling a drilling television: after the elevator, the support, the rotary camera module and the reference protecting net are assembled, the rotary camera module and the reference protecting net are inserted into the hole opening of the drill hole;
C. image observation: the working personnel send out a control signal through the touch display screen, and after the control signal is transmitted to the control module for analysis and processing, the control module controls the rotary camera module to rotate so that the shooting direction of the rotary camera module is vertically downward along the drill hole; then, sending an instruction through the touch display screen, enabling the control module to control the elevator to work, moving the rotary camera module and the reference protective net to the bottom of the drill hole at a set speed, feeding a shot picture back to the touch display screen for displaying from an orifice in real time by the rotary camera module, stopping observation when the rotary camera module reaches the bottom of the drill hole, and storing the image of the whole observation process;
D. measuring the proportional relation between the actual length of the hole wall and the size of the image in the picture: in the process of observing by the drilling television, a worker randomly selects a position point in a displayed image of the hole wall of the drill hole as a reference point, and the drilling television continuously moves towards the hole bottom of the drill hole for observation; when the datum point is blocked by the hoop II and cannot be displayed on the touch display screen, recording the position of the rotary camera module at the moment, sending an instruction to enable the shooting direction of the rotary camera module to rotate towards the position of the datum point until the datum point reaches the horizontal direction and stops, and displaying the datum point on the touch display screen again at the moment; continuing moving and observing towards the bottom of the hole until the reference point is shielded by the hoop I and cannot be displayed on the touch display screen, recording the position of the rotary camera module, obtaining the descending distance of the rotary camera module in the period of time, and finally restoring the shooting direction of the rotary camera module to be vertically downward; knowing the distance between the rotary camera module and the iron ring II and the actual width of the iron ring II, the proportional relation between the actual width of the iron ring II and the image size in the picture can be obtained; the distance between the rotary camera module and the hole wall crack is obtained according to the descending distance of the rotary camera module and the geometric relation of the reference protection net, the actual length represented by the image with the single size in the picture is in direct proportion to the distance between the object and the rotary camera module, and therefore the proportional relation between the actual length of the hole wall crack and the image size can be known;
E. data processing of the observation image: c, transmitting the observation image stored in the step C to a computer for playing, intercepting the image when the crack appears in the picture, and measuring the pixel quantity a occupied by the crack width, the pixel quantity b occupied by the crack length and the pixel quantity C occupied by the iron ring II width in the image by adopting an image processing program;
F. the length and width of the fracture are calculated as follows:
according to the geometric relation of the reference protective net, the distance L between the rotary camera module and the hole wall crack2：
H is the descending distance of the rotary camera module from the shielding of the iron ring II to the shielding of the iron ring I between the rotary camera module and the hole wall crack; theta is an included angle between the connecting line of the rotary camera module and the iron ring II and the vertical direction;
according to the imaging principle, the width e of the hole wall of a part shielded by the iron ring I is as follows:
wherein d is the iron wire diameter for manufacturing the iron ring I and the iron ring II; l is1The distance between the rotary camera module and the iron ring II is set;
according to the proportional relation between the actual length and the image size, the calculation formula of the fracture width m is as follows:
according to the proportional relation between the actual length and the image size, the calculation formula of the fracture length n is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789725.6A CN110656927B (en) | 2019-08-26 | 2019-08-26 | Fracture image measuring method based on borehole television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789725.6A CN110656927B (en) | 2019-08-26 | 2019-08-26 | Fracture image measuring method based on borehole television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110656927A CN110656927A (en) | 2020-01-07 |
| CN110656927B true CN110656927B (en) | 2021-06-18 |
Family
ID=69037806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910789725.6A Active CN110656927B (en) | 2019-08-26 | 2019-08-26 | Fracture image measuring method based on borehole television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110656927B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141928B (en) * | 2020-01-21 | 2021-09-21 | 中国矿业大学 | Tracer agent feeding device and using method thereof |
| CN111927434A (en) * | 2020-06-29 | 2020-11-13 | 龙林 | Geological exploration drilling imaging system and method |
| CN114460076A (en) * | 2022-01-12 | 2022-05-10 | 长江三峡勘测研究院有限公司（武汉） | Method for determining material composition of covering layer and size of skeleton particles based on drilling shooting |
| CN114324120B (en) * | 2022-03-16 | 2022-06-07 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Deep hole multi-category comprehensive detection equipment and method for geological exploration |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147846A (en) * | 1992-11-05 | 1994-05-27 | Okumura Corp | Geological surveying method |
| EP0831299A4 (en) * | 1995-03-27 | 1999-09-22 | Toa Grout Kogyo Co | Device for observing inner wall surface of conduit |
| CN101482409A (en) * | 2009-02-09 | 2009-07-15 | 吴志刚 | Rock fissure direction and obliquity measuring method |
| CN203132505U (en) * | 2013-03-22 | 2013-08-14 | 胡长华 | Portable non-contact cracks measuring instrument |
| CN106018411A (en) * | 2016-05-09 | 2016-10-12 | 广州市九州旗建筑科技有限公司 | Crack width measuring and computing method and measuring device |
| CN106437680A (en) * | 2016-12-05 | 2017-02-22 | 山东科技大学 | Fissure measuring device matched with borehole television imager and using method |
| CN108798637A (en) * | 2018-06-07 | 2018-11-13 | 山东科技大学 | Detection method and its propulsion device are pried through in the pinpoint drilling of one kind |
| CN109828281A (en) * | 2019-03-21 | 2019-05-31 | 南京林业大学 | A kind of unmanned machine equipment for according to photo calculating flaw size |
| CN110060232A (en) * | 2019-03-15 | 2019-07-26 | 深圳高速工程顾问有限公司 | Tunnel slot recognition methods, device, computer equipment and storage medium |
| US10380729B2 (en) * | 2014-04-22 | 2019-08-13 | Vision Io As | Method for visual inspection and logging |
-
2019
- 2019-08-26 CN CN201910789725.6A patent/CN110656927B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147846A (en) * | 1992-11-05 | 1994-05-27 | Okumura Corp | Geological surveying method |
| EP0831299A4 (en) * | 1995-03-27 | 1999-09-22 | Toa Grout Kogyo Co | Device for observing inner wall surface of conduit |
| CN101482409A (en) * | 2009-02-09 | 2009-07-15 | 吴志刚 | Rock fissure direction and obliquity measuring method |
| CN203132505U (en) * | 2013-03-22 | 2013-08-14 | 胡长华 | Portable non-contact cracks measuring instrument |
| US10380729B2 (en) * | 2014-04-22 | 2019-08-13 | Vision Io As | Method for visual inspection and logging |
| CN106018411A (en) * | 2016-05-09 | 2016-10-12 | 广州市九州旗建筑科技有限公司 | Crack width measuring and computing method and measuring device |
| CN106437680A (en) * | 2016-12-05 | 2017-02-22 | 山东科技大学 | Fissure measuring device matched with borehole television imager and using method |
| CN108798637A (en) * | 2018-06-07 | 2018-11-13 | 山东科技大学 | Detection method and its propulsion device are pried through in the pinpoint drilling of one kind |
| CN110060232A (en) * | 2019-03-15 | 2019-07-26 | 深圳高速工程顾问有限公司 | Tunnel slot recognition methods, device, computer equipment and storage medium |
| CN109828281A (en) * | 2019-03-21 | 2019-05-31 | 南京林业大学 | A kind of unmanned machine equipment for according to photo calculating flaw size |
Non-Patent Citations (2)
| Title |
|---|
| 基于数字钻孔摄像的图像分析方法研究;秦英译;《中国优秀硕士学位论文全文数据库（电子期刊）基础科学辑》;20070215(第2期);A011-80 * |
| 超广角井下电视***在井下测量中的标定和应用;王德福等;《电子测量与仪器学报》;19990930;第13卷(第3期);34-39 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110656927A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110656927B (en) | Fracture image measuring method based on borehole television | |
| CN108798637B (en) | Accurately positioned drilling peeping detection method and propelling device thereof | |
| SA518392260B1 (en) | 3d toolface wellbore steering visualization | |
| CN105804721A (en) | Karst cave probing system and using method thereof | |
| CN104499485B (en) | One pile for one column fully automatic hydraulic verticality-regulating system and vertical adjustment method | |
| CN106197363B (en) | A kind of measurement method of protected seam dilatancy amount | |
| CN110042823B (en) | Multifunctional dynamic sounding automatic recording system and test method based on Internet of things | |
| CN205591910U (en) | Solution cavity detection system | |
| CN103759706B (en) | Mine drop shaft method for three-dimensional measurement and measurement mechanism | |
| CN107314807B (en) | A kind of method of wirerope horizontal space vibration measurement | |
| CN106771066A (en) | The analogue experiment installation and synergic monitoring method of mining overburden motion influence ore deposit pressure | |
| CN113959470A (en) | Coal mine goaf overlying strata moving distributed optical fiber measurement guide head and monitoring method | |
| CN209260776U (en) | Multifunctional high pressure jet grouting pile construction monitoring device | |
| CN205895168U (en) | Triaxial stirring stake drilling rod perpendicularity control device | |
| CN107130645A (en) | Multifunctional vibration-type stake well sediment detector | |
| CN109356207A (en) | Multifunctional high pressure jet grouting pile construction monitoring device | |
| WO2022007365A1 (en) | Tbm-mounted mineral component detection method and advanced geological forecasting method and system | |
| CN108562947B (en) | Detection device for vertical shaft or deep hole | |
| CN111272874A (en) | Automatic detection device for hidden roof collapse danger of roadway | |
| CN205895170U (en) | Drilling tool | |
| CN206859277U (en) | Multifunctional vibration-type stake well sediment detector | |
| CN108895967A (en) | The method for detecting position and detection device of solution cavity pile foundation casing | |
| CN211699176U (en) | Real-time monitoring and early warning device for deep foundation pit displacement | |
| CN106017332A (en) | Roadway surrounding rock surface relative displacement monitoring system and method | |
| CN112761517A (en) | Construction method for improving geological exploration efficiency of tunnel advanced exploration hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |