CN112664181B - Imaging device for drilling and imager comprising same - Google Patents
Imaging device for drilling and imager comprising same Download PDFInfo
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- CN112664181B CN112664181B CN202011568592.9A CN202011568592A CN112664181B CN 112664181 B CN112664181 B CN 112664181B CN 202011568592 A CN202011568592 A CN 202011568592A CN 112664181 B CN112664181 B CN 112664181B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 208000008918 voyeurism Diseases 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000010408 sweeping Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 244000144985 peep Species 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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Abstract
The application provides an imaging device for drilling and an imager comprising the same, wherein the imaging device for drilling comprises a protective cylinder; the peeping instrument is arranged in the protective cylinder; the actuating assembly is arranged between the protective cylinder and the peeping instrument and is used for actuating the peeping instrument to extend into or out of the inner cavity of the protective cylinder; the hole sweeping piece is arranged at the lower end of the protection barrel and used for performing hole sweeping and drilling operation after the peeping instrument extends into the protection barrel, and on one hand, the imaging device can protect the peeping instrument in a complex stratum; on the other hand, the peeping instrument can be used for sweeping holes in a complex stratum to ensure that the peeping instrument can be smoothly put down, so that the aim of peeping the drilled holes is smoothly fulfilled, and the peeping instrument is particularly applied to elevation holes of coal drilled holes.
Description
Technical Field
The invention belongs to the technical field of drilling engineering, and particularly relates to an imaging device for drilling and an imager comprising the imaging device.
Background
At present, the mode of solving mine gas and water damage in domestic coal mines mainly takes an underground drilling process technology as a main mode, and the conventional drilling and underground long-distance directional drilling processes are mainly adopted for advanced gas drainage and water exploration and drainage. In order to more accurately know various characteristics and fine structures of geologic bodies in a drilled hole (directional deep hole), such as the conditions of stratum lithology, rock structure, fault, crack, interlayer, karst and the like, an imager is adopted to record, trace and image all-round and full-cylindrical videos of the drilled hole. Therefore, the method plays an important role in providing a true foundation for the stratum in the work of gas and water damage treatment, roof management, double-zone detection and the like.
However, when imaging is performed using a prior art scope, it is found that imaging is often difficult due to special circumstances (such as diameter reduction, collapse, etc.) of the drilled hole.
Disclosure of Invention
In view of some or all of the above technical problems in the prior art, the present invention provides an imaging device for drilling and an imager comprising the same. The imaging device can protect a peeping instrument in a complex stratum on one hand; on the other hand, the hole sweeping operation can be carried out in a complex stratum so as to ensure that the peeping instrument can be smoothly put in, and further, the aim of drilling and peeping can be smoothly fulfilled. The imaging device can be used in the geological drilling detection field including coal drilling due to the fact that hole sweeping and the like can be carried out, and is particularly applied to elevation holes of mine drilling.
According to an aspect of the present invention, there is provided an imaging apparatus for drilling, including:
a protective cylinder is arranged on the outer side of the shell,
a peeping instrument arranged in the protective cylinder,
an actuating assembly disposed between the protective barrel and the scope, the actuating assembly for actuating the scope to extend into or out of the lumen of the protective barrel,
the hole sweeping piece is arranged at the lower end of the protection barrel and used for sweeping and drilling after the peeping instrument extends into the protection barrel.
In one embodiment, the actuation assembly comprises:
a supporting cylinder which is sleeved in the inner cavity of the protecting cylinder at intervals,
a piston arranged in the inner cavity of the supporting cylinder and capable of being connected with the supporting cylinder in a sliding way,
a pull rod fixedly connected with the piston,
the peeping instrument is fixedly connected to the lower end of the pull rod, and the piston drives the peeping instrument to axially move through the pull rod in the process of axially moving relative to the supporting cylinder.
In one embodiment, a lower seal and an upper seal are fixedly arranged in an inner cavity of the supporting cylinder to form a liquid cavity, a liquid inlet communicated with the liquid cavity is arranged on a side wall of the supporting cylinder and communicated with a supply channel, a liquid outlet positioned at the upper end of the liquid inlet is arranged on the side wall of the supporting cylinder and communicated with a liquid outlet channel, and the piston is positioned in the liquid cavity and positioned at the upper end of the liquid inlet.
In one embodiment, a sleeve is arranged between the supporting cylinder and the protecting cylinder in a sleeved mode at intervals, the annular space of the sleeve and the supporting cylinder forms the supply channel, the annular space of the sleeve and the annular space of the protecting cylinder form the liquid outlet channel, and a flow guide pipe communicated with the liquid outlet channel and the liquid outlet is arranged between the sleeve and the supporting cylinder.
In one embodiment, a reset member for resetting the piston is provided between the piston and the upper seal.
In one embodiment, the reset member is configured as a spring sleeved on the outer wall of the pull rod, and two ends of the spring are respectively abutted with the upper seal and the piston.
In one embodiment, a reducing joint is arranged at the upper end of the protection cylinder, the reducing joint is connected with the support cylinder and the sleeve, and a liquid supply hole communicated with an inner cavity of the reducing joint and the supply channel is formed in the reducing joint.
In one embodiment, a cylindrical connector is arranged between the pull rod and the peeping instrument, and a cable plug is hermetically arranged on the outer wall of the connector.
In one embodiment, the hole sweeping member is configured as a ring-shaped drill bit provided at a lower end of the protective cylinder, through which the scope can extend.
According to an aspect of the present invention, there is provided an imager comprising:
the drill rod is provided with a drill rod body,
the above-mentioned imaging apparatus for boring connected to the lower end of the drill rod,
a hydraulic pressure source in communication with the inner lumen of the drill stem for providing a motive force to the actuation assembly to extend the scope into the inner lumen of the protective barrel.
Compared with the prior art, the invention has the advantages that: the imaging device is provided with a protective cylinder outside the peeping instrument, so that the peeping instrument can extend into or out of the protective cylinder, and the safety of the peeping instrument is ensured; and this image device still includes and sweeps the hole piece, meets special condition such as undergauge or collapse in order to sweep the hole operation, has made things convenient for going into smoothly of peeping the appearance, has guaranteed the security that image device surveyed the drilling. The imaging device can be used for hole sweeping, and can be applied to elevation holes smoothly and safely.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:
FIG. 1 illustrates a snooper extension state diagram of a borehole imaging apparatus according to one embodiment of the present invention;
FIG. 2 illustrates a snooper retraction state diagram of a borehole imaging apparatus according to one embodiment of the present invention.
In the drawings, like parts are given like reference numerals. The figures are not drawn to scale.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, the following describes exemplary embodiments of the present invention in further detail with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
An embodiment of the present invention provides an imaging apparatus 10 for drilling a hole. As shown in fig. 1, the imaging device 10 includes a protective barrel 1, a scope 2, an actuation assembly, and a hole-sweeping member 3. Wherein, the protection cylinder 1 is in a cylinder shape and plays the roles of protection, connection and power transmission. The peeping instrument 2 is arranged in the inner cavity of the protective cylinder 1 and is mainly used for carrying out video recording on drilling holes in an all-round and full-cylindrical mode, and carrying out operations such as track imaging. The actuating assembly is arranged between the protective barrel 1 and the peeping instrument 2 and used for actuating the peeping instrument 2 to extend into or out of the inner cavity of the protective barrel 1. Under the normal operating condition, peep appearance 2 and stretch out the inner chamber of protection section of thick bamboo 1 to carry out the formation of image operation. When the peep instrument 2 needs to be protected, the actuating assembly actuates the peep instrument 2 to extend into the inner cavity of the protecting cylinder 1. The hole-sweeping member 3 is provided at a lower end of the protective cylinder 1 (the "lower end" herein corresponds to the right end in fig. 1 for convenience of description only, that is, the "lower end" does not constitute a limitation on the use of the imaging apparatus 10. For example, in the actual use of the imaging apparatus 10, if applied to a pitch hole, the lower end of the protective cylinder 1 may be directed above or obliquely above the geodetic coordinates, and in the case of a pitch hole, the lower end of the protective cylinder 1 may be directed below or obliquely below the geodetic coordinates) for performing a hole-sweeping drilling operation to ensure smooth running of the imaging apparatus 10 into the borehole.
Therefore, the imaging device 10 according to the present application is provided with the protection cylinder 1 at the outer side of the scope 2, so as to make the scope 2 extend into or out of the protection cylinder 1, thereby ensuring the safety of the scope 2; and this image device 10 still includes to sweep hole piece 3, meets special conditions such as necking down or collapse in order to sweep the hole operation for image device 10's lower clear barrier of going into, has made things convenient for peeking appearance 2 to go into smoothly, avoids meeting and hinders and proposes peeking appearance, has guaranteed that image device 10 can visit the drilling completely. Even if the drilled hole is an elevation hole, the imaging device 10 can be smoothly lowered and safely imaged.
In one embodiment, the actuation assembly includes a support cylinder 41, a piston 42, and a pull rod 43. The supporting cylinder 41 is cylindrical and is arranged in the inner cavity of the protective cylinder 1 at intervals. The piston 42 is disposed in the inner cavity of the support cylinder 41 and is slidably connected to the support cylinder 41. The pull rod 43 is fixedly connected with the piston 42. The scope 2 is fixedly connected to the lower end of the pull rod 43. Therefore, in the process that the piston 42 moves axially relative to the supporting cylinder 41, the peeping instrument 2 is driven to move axially through the pull rod 43, and then the peeping instrument 2 extends into or out of the inner cavity of the protecting cylinder 1.
In one particular embodiment, the piston 42 may be driven by hydraulic pressure. Specifically, a lower seal 44 and an upper seal 45 are fixedly disposed in the inner cavity of the support cylinder 41. The interior cavity of support sleeve 41 between lower seal 44 and upper seal 45 forms a fluid chamber 46. In addition, a liquid inlet 47 and a liquid outlet 48 communicating with the liquid chamber 46 are provided on the side wall of the support cylinder 41. The liquid outlet 48 is located at the upper end of the liquid inlet 47. The liquid inlet 47 communicates with a supply passage 49. And the liquid outlet 48 communicates with the liquid outlet passage 50. The piston 42 is located in the liquid chamber 46 and at the upper end of the liquid inlet 47. With this arrangement, the piston 42 can be driven upward by hydraulic pressure, thereby achieving the retracting operation of the scope 2. As shown in fig. 2, the pumped liquid enters the liquid chamber 46 through the supply passage 49, and the pressure of the liquid acts on the lower end face of the piston 42 and urges the piston 42 upward. The upward moving piston 42 drives the pull rod 43 to move upward and further drives the scope 2 to move upward and extend into the inner cavity of the protection cylinder 1. After the piston 42 is moved to the right position, the liquid chamber 46 communicates with the liquid outlet 48 to deliver the liquid to the outside through the liquid outlet channel 50.
In one embodiment, a sleeve 51 is sleeved on the outer wall of the support cylinder 41. The sleeve 51 forms a supply passage 49 with the annulus of the support cylinder 41. The sleeve 51 is positioned in the inner cavity of the protection barrel 1 and forms a liquid outlet channel 50 with the annular space of the protection barrel 1. A flow guide tube 52 is provided between the sleeve 51 and the support cylinder 41. The liquid guiding pipe 52 has one end connected to the liquid chamber 46 at the liquid outlet 48 and the other end connected to the liquid outlet channel 50 through the wall of the sleeve 51 for conveying the liquid in the liquid chamber 46 to the liquid outlet channel 50.
A reset member 53 is provided between the piston 42 and the upper seal 45 for actuating the reset of the piston 42. Preferably, the return element is configured as a spring which is slipped onto the outer wall of the pull rod 43. And both ends of the spring abut the upper seal 45 and the piston 42, respectively. The spring is compressed when the piston 42 is moved upward by hydraulic pressure. After the pumping of the pressure fluid is stopped, the spring releases the elastic potential energy, and when the downward pressure applied to the piston 42 is large, the piston 42 moves downwards, so that the pull rod 43 and the peering instrument 2 are urged to reset. At this time, the scope 2 is exposed from the protective cylinder 1 and normal imaging operation can be performed.
The upper end of the protective cylinder 1 is provided with a reducing joint 6. The reducing joint 6 can also be connected with the support cylinder 41 and the sleeve 51 to define the positional relationship of the three. At the same time, the reducing union 6 is used to connect the imaging device 10 to a drill pipe (not shown in the figures). Further, the reducing joint 6 is provided with a liquid supply hole 61. The supply hole 61 communicates the supply passage 49 with the inner cavity of the reducing joint 6. Further, the pressure fluid supplied to the bore of the drill rod may enter the supply passage 49 through the supply port 61.
A cylindrical connector 7 is provided between the pull rod 43 and the scope 2. The outer wall of the connector 7 is hermetically provided with a cable plug 71. The peeping instrument 2 can be powered through the cable plug 71, so that the normal work of the peeping instrument 2 is ensured.
In a particular embodiment, the hole-sweeping means 3 is configured as a ring-shaped drill bit arranged at the lower end of the casing 1. The scope 2 can be inserted or extended through the drill. When the borehole is abnormal, such as diameter shrinkage, sediment, crushing collapse and the like, the drill bit can be driven to rotate through the drill rod, so that hole sweeping operation is performed, the abnormality in the hole is eliminated, and the imaging device 10 can be ensured to continuously go into the borehole.
The application also relates to an imager (not shown in the figures). The imager includes the imaging device 10 described above, a drill pipe, and a hydraulic pressure source. The drill rod, in addition to being fed into the imaging device 10, also functions to rotate the drill bit. And the hydraulic pressure source may be water or mud which communicates with the interior cavity of the drill pipe to supply water or mud to the fluid chamber 46 to urge the piston 42 upward.
The operation of the imaging device 10 is described in detail below with reference to fig. 1 and 2.
When the drill hole is clean, has no diameter shrinkage, sediment and collapse, the peeping instrument 2 is exposed out of the protection cylinder 1, and the imaging in the hole is normally carried out.
When an abnormality occurs in the borehole, such as shrinkage, sediment, fracture collapse, etc. And (5) starting a mud pump outside the drilling hole. Water or slurry is delivered into the bore of the drill pipe and the slurry passes through the feed holes 61, feed passage 49 and inlet 47 in sequence into the fluid chamber 46. The water or slurry provides a water pressure of, for example, 2-3Mpa to move the piston 42 upward. The piston 42 drives the pull rod 43 and the scope 2 upwards. Compressing the spring during upward movement of the piston 42. When the piston 42 passes through the outlet 48, slurry in the chamber 46 passes through the outlet 48 into the conduit 52 and then into the outlet passage 50. And finally out through the outlet channel 50 and the drill bit. When the piston 42 is kept in a state of relative balance by the hydraulic pressure and the spring force, the scope 2 is in the inner cavity of the protective cylinder 1. At the moment, the drill rod can be rotated to drive the drill bit to sweep the hole, and the abnormity in the drilled hole is eliminated.
And stopping the slurry pump outside the drilling hole after the abnormality in the drilling hole is eliminated. In the absence of hydraulic pressure, the spring releases its elastic potential energy to push the piston 42. The piston 42 drives the pull rod 43 and the peeping instrument 2 to automatically reset. At the moment, the peeping instrument 2 is exposed out of the inner cavity of the protection barrel 1, and in-hole imaging can be normally carried out.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.
Claims (8)
1. An imaging device for drilling, comprising:
a protective cylinder is arranged on the outer side of the shell,
a peeping instrument arranged in the protective cylinder,
the actuating assembly is arranged between the protective cylinder and the peeping instrument and used for actuating the peeping instrument to extend into or out of the inner cavity of the protective cylinder, the actuating assembly comprises a supporting cylinder arranged in the inner cavity of the protective cylinder in a spaced and sleeved mode, a piston arranged in the inner cavity of the supporting cylinder and capable of being connected with the supporting cylinder in a sliding mode, and a pull rod fixedly connected with the piston,
the hole sweeping piece is arranged at the lower end of the protective barrel and is used for performing hole sweeping and drilling operation after the peeping instrument extends into the protective barrel,
the peeping instrument is fixedly connected to the lower end of the pull rod, the piston drives the peeping instrument to move axially through the pull rod in the axial movement process relative to the supporting cylinder, a lower seal and an upper seal are fixedly arranged in the inner cavity of the supporting cylinder to form a liquid cavity, a liquid inlet communicated with the liquid cavity is formed in the side wall of the supporting cylinder and communicated with the supply channel, a liquid outlet located at the upper end of the liquid inlet is formed in the side wall of the supporting cylinder and communicated with the liquid outlet channel, and the piston is located in the liquid cavity and located at the upper end of the liquid inlet.
2. The imaging device for drilling according to claim 1, wherein a sleeve is disposed between the support cylinder and the protection cylinder in a spaced and sleeved manner, the annular space between the sleeve and the support cylinder forms the supply passage, the annular space between the sleeve and the protection cylinder forms the liquid outlet passage, and a flow guide tube communicating with the liquid outlet passage and the liquid outlet is disposed between the sleeve and the support cylinder.
3. The imaging apparatus for drilling according to claim 2, wherein a restoring member for restoring the piston is provided between the piston and the upper seal.
4. The imaging device for drilling according to claim 3, wherein the reset member is configured as a spring sleeved on an outer wall of the pull rod, and two ends of the spring are respectively abutted against the upper seal and the piston.
5. The imaging apparatus for drilling according to claim 2, wherein a reducing joint is provided at an upper end of the protective cylinder, the reducing joint is connected to both the support cylinder and the sleeve, and a liquid supply hole for communicating with an inner cavity of the reducing joint and the supply passage is provided at the reducing joint.
6. The imaging apparatus for drilling according to any one of claims 1 to 5, wherein a cylindrical connector is provided between the pull rod and the scope, and a cable plug is sealingly provided on an outer wall of the connector.
7. The imaging apparatus for drilling according to any one of claims 1 to 5, wherein the hole-sweeping member is configured as a ring-shaped drill provided at a lower end of the protective cylinder, through which the scope is extendable.
8. An imager, comprising:
the drill rod is provided with a drill rod body,
an imaging apparatus for boring as claimed in any one of claims 1 to 7 attached to a lower end of the drill rod,
a hydraulic pressure source in communication with the inner lumen of the drill stem for providing a motive force to the actuation assembly to extend the scope into the inner lumen of the protective barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568592.9A CN112664181B (en) | 2020-12-25 | 2020-12-25 | Imaging device for drilling and imager comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568592.9A CN112664181B (en) | 2020-12-25 | 2020-12-25 | Imaging device for drilling and imager comprising same |
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| Publication Number | Publication Date |
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| CN112664181A CN112664181A (en) | 2021-04-16 |
| CN112664181B true CN112664181B (en) | 2022-11-25 |
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| CN117145452B (en) * | 2023-07-10 | 2024-03-26 | 中国地质大学（武汉） | Up-down separation type detector protection tube transmission mechanism for deep detection |
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| CN112664181A (en) | 2021-04-16 |
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