CN212428790U - Underground visual tool - Google Patents

Abstract

The utility model belongs to the technical field of oil gas exploitation, concretely relates to visual instrument in pit. The utility model provides an underground visual tool, which is used for observing the internal state of an oil gas well and comprises a cylinder body, a lighting device, a camera device, a power supply, a cover body and a transparent plate; openings are formed in the two opposite ends of the cylinder body, a transparent plate is arranged on the opening cover at one end of the cylinder body, and a cover plate is arranged on the opening cover at the other end of the cylinder body; the illuminating device, the camera device and the power supply are arranged in the barrel, and the light outlet end of the illuminating device and the lens of the camera device face the transparent plate; the lighting device and the camera device are respectively electrically connected with a power supply, and the power supply is used for supplying power to the lighting device and the camera device. The utility model provides a visual instrument in pit when oil gas well internal motion, lighting device illuminates oil gas well inside, inside camera device shot the pit shaft simultaneously, makes the staff can know the internal circumstances in the pit shaft.

Description

Underground visual tool

Technical Field

The utility model belongs to the technical field of oil gas exploitation, concretely relates to visual instrument in pit.

Background

In the middle of the process of oil gas field exploitation, need regularly maintain the oil gas well and the stratum that form after the well drilling, for example, crude oil is at the in-process of production, because the reduction of temperature pressure and the spill over of lighter hydrocarbons, the wax of dissolving in crude oil can be appeared and adsorb on the oil gas well pipe wall with the form of crystal, need regularly carry out paraffin removal in order to guarantee that the pit shaft is unobstructed to the oil gas well. For another example, the oil and gas well needs to be tested regularly to obtain data such as stratum and production parameters, and the obtained data is used for guiding production adjustment of the oil and gas well to ensure normal production of the oil and gas well.

However, during actual production, tools for oil and gas well maintenance, such as a weighting bar, a drift size gauge and the like, often encounter obstacles at the well head and tens of meters below the well head, and cannot normally pass through the obstacles. At the moment, specific conditions in the shaft cannot be known, the abnormal conditions cannot be accurately processed, and only the operation can be stopped, so that a lot of manpower and material resources are wasted, and the development work of the oil and gas field is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The problem of the interior specific circumstances of pit shaft can't be known in order to solve among the prior art above-mentioned problem, if meet the hindrance in well head and the tens meters below the well head when solving current oil gas well maintenance promptly. The utility model provides an underground visual tool for observing the internal state of an oil-gas well, which comprises a cylinder body, a lighting device, a camera device, a power supply, a cover body and a transparent plate; openings are formed in two opposite ends of the cylinder body, a transparent plate is arranged on one opening cover of the cylinder body, and a cover plate is arranged on the other opening cover of the cylinder body; the illuminating device, the camera device and the power supply are arranged in the barrel, and the light outlet end of the illuminating device and the lens of the camera device face the transparent plate; the lighting device and the camera device are respectively electrically connected with the power supply, and the power supply is used for supplying power to the lighting device and the camera device.

In an optional embodiment of the above downhole visual tool, the downhole visual tool further comprises a storage device, the storage device is located inside the barrel and is arranged at one end close to the cover body, the storage device is electrically connected with the camera device, and the storage device is used for storing images shot by the camera device.

In an alternative embodiment of the above downhole visualization tool, the storage device is removably attached to the inner wall of the barrel.

In an alternative embodiment of the above downhole visualization tool, the switch is electrically connected to the power source, the switch being configured to control a power state of the power source.

In an alternative embodiment of the above downhole visualization tool, the switch is a remote control switch.

In an alternative embodiment of the above downhole vision tool, the switch is an insulating switch, and the side wall of the cylinder is provided with a through hole, and at least a part of the insulating switch extends out of the cylinder from the through hole.

In an optional embodiment of the above downhole visual tool, the downhole visual tool further comprises at least one slide way arranged on the inner side wall of the cylinder body, the extending direction of the slide way is parallel to the axial direction of the cylinder body, a slide block connected with the slide way in a sliding manner is arranged on the slide way, and the slide block and the slide way can be separated at one end of the slide way close to the cover body; and the lighting device and/or the camera device are fixedly connected with the sliding block.

In an optional embodiment of the above downhole visual tool, the downhole visual tool further comprises a limiting device, and the limiting device is arranged inside the cylinder and used for limiting the distance of the sliding block moving towards the transparent plate.

In an optional embodiment of the above downhole vision tool, the barrel is tapered, the tapered large-caliber end cap is provided with the transparent plate, and the tapered small-caliber end cap is provided with the cover body.

In an alternative embodiment of the above downhole vision tool, the transparent plate is a quartz glass plate; and/or at least two connecting seats are arranged on the outer side of the cover body, and connecting holes are formed in the connecting seats and used for fixing the traction ropes.

As can be understood by those skilled in the art, the utility model provides a visual instrument in pit, including barrel, lighting device, camera device, power, lid and transparent plate, the relative both ends of barrel have the opening, and one of them end opening lid of barrel is equipped with the transparent plate, and the other end opening lid of barrel is equipped with the apron. The illuminating device, the camera device and the power supply are arranged in the barrel, the power supply is used for supplying power to the illuminating device and the camera device, and the light emitting end of the illuminating device and the lens of the camera device face the transparent plate. Through setting up power, lighting device and camera device in the barrel is inside, when the barrel when oil gas well inside motion, lighting device illuminates oil gas well inside, inside camera device shot the pit shaft simultaneously, makes the staff can know the interior particular circumstances of pit shaft.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a downhole visualization tool according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic view of a cover structure according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a downhole visualization tool according to a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of another downhole visualization tool provided in the second embodiment of the present invention;

fig. 6 is a schematic structural diagram of another downhole visualization tool according to the second embodiment of the present invention;

fig. 7 is a schematic structural diagram of another downhole visualization tool provided in the second embodiment of the present invention;

fig. 8 is a schematic structural diagram of a downhole visualization tool according to a third embodiment of the present invention;

fig. 9 is a partially enlarged view of fig. 8.

Description of reference numerals:

1-a cylinder body;

11-a slide;

12-a slide block;

13-a limiting device;

2-a lighting device;

3-a camera device;

4-a power supply;

5-cover body;

51-a connecting seat;

511-connecting hole;

52-rope rail;

521-a limiting hole;

53-a gland;

54-a limiting block;

6-a transparent plate;

7-a traction rope;

8-a storage device;

9-switch.

Detailed Description

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be modified as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the process of existing oil and gas field exploitation, in the process of maintaining an oil and gas well and a stratum, a tool for maintaining the oil and gas well usually encounters obstacles at a well head and dozens of meters below the well head and cannot normally pass through the obstacles. Because the specific conditions in the shaft cannot be known, abnormal conditions cannot be accurately processed, and the operation can only be stopped, a lot of manpower and material resources are wasted, and the development work of the oil-gas field is seriously influenced.

The utility model provides a visual instrument in pit, including barrel, lighting device, camera device, power, lid and transparent plate, the both ends that the barrel is relative have the opening, and two openings of barrel are covered respectively and are established transparent plate and apron. The power supply, the illuminating device and the camera device are arranged inside the barrel, when the underground visual tool moves inside the shaft, the power supply supplies power to the illuminating device and the camera device, light emitted by the illuminating device illuminates the inside of the shaft through the transparent plate at one end of the barrel, the camera device shoots the inside condition of the shaft, and a worker can clearly know the inside condition of the shaft through an image shot by the camera device.

Example one

Fig. 1 is a schematic structural diagram of a downhole visualization tool provided in this embodiment, as shown in fig. 1. The downhole vision tool comprises a barrel 1, an illumination device 2, a camera device 3, a power supply 4, a cover 5 and a transparent plate 6. The cylinder 1 is a hollow cylindrical structure with openings at the upper and lower ends arranged vertically, and it should be noted that "cylindrical" is understood in a broad sense here, that is, the cross section of the cylindrical structure is not limited to a circle, and the sizes of the cross sections of the cylindrical structure may be equal or different. In addition, "vertically disposed" means that the axis of the cylinder 1 extends substantially in the up-down direction in fig. 1.

In some realizations, the upper part of the cylinder body 1 is in a straight cylinder shape, the lower part is in a conical shape, the large diameter end of the conical shape faces downwards, the small diameter end of the conical shape faces upwards and is fixedly connected with the end face of the straight cylinder shape, the straight cylinder shape and the lower conical shape on the upper part of the cylinder body 1 can adopt various connection modes, for example, the connection modes can be threaded connection or welded connection, and attention is needed to ensure the sealing performance of the connection between the straight cylinder shape and the conical shape. By setting the bottom of the barrel 1 to be tapered and the large-diameter end to face downward, the light exit area of the bottom of the barrel 1 can be increased, and in addition, the shooting area of the imaging device 3 described below can be increased, and particularly, the imaging device 3 can shoot the condition of the well wall.

The barrel 1 is made of a corrosion-resistant material, for example, the barrel 1 can be made of stainless steel, and the stainless steel is used as the material of the barrel 1, so that the condition that the downhole visual device is scrapped due to the fact that the downhole visual device is contacted with corrosive gas and liquid inside an oil-gas well in the long-term use process of the downhole visual device is avoided.

It is worth mentioning that the maximum cross-sectional area of the cylinder 1 is small compared to the inner area of the shaft of the oil and gas well, and the cylinder 1 can smoothly reciprocate in the shaft.

With continued reference to fig. 1, the upper opening of the cylinder 1 is connected to the cover 5. The cover body 5 can be a columnar structure, and the cross section shape of the cover body 5 is matched with that of the top of the cylinder body 1.

Illustratively, the barrel 1 and the cover 5 are connected in a sealing manner, specifically, an internal thread is arranged on the upper portion of the inner wall of the barrel 1, the bottom of the cover 5 protrudes downwards, and the protruding portion is provided with an external thread. The internal thread in 1 inner wall top of barrel and the cooperation of lid 5 below external screw thread fasten barrel 1 and lid 5 to, set up the sealing washer in barrel 1 and lid 5 junction, prevent that the inside liquid of oil gas well from entering into inside the barrel 1 from barrel 1 and lid 5 junction, make the short circuit of the inside electrical components of barrel 1.

Fig. 2 is a partially enlarged schematic view of fig. 1. In some implementations, as shown in fig. 1-2, at least two connection seats 51 are provided on the outside of the cover 5. Connecting seat 51 is provided with connecting hole 511, and connecting hole 511 is used for fixed haulage rope 7, specifically, and the one end of haulage rope 7 is tied tightly after passing through connecting hole 511, makes haulage rope 7 and connecting seat 51 fastening connection. The connecting seat 51 and the cover 5 may be connected in a variety of ways, for example, the connecting seat 51 and the cover 5 are connected by welding or by screws. In this embodiment, the connection manner between the connection seat 51 and the cover 5 is not limited, and those skilled in the art can select any suitable connection manner.

It will be readily appreciated that the number of the coupling seats 51 is not limited, and may be two or more than two. Illustratively, as shown in fig. 1, the number of the connecting seats 51 is three, three connecting seats 51 are uniformly distributed on the outer side of the cover body 5, each connecting seat 51 is respectively fastened and connected with one end of one pulling rope 7, and the other ends of the three pulling ropes 7 are converged together above the cover body 5 and connected with a driving part such as a winch or a vehicle through another pulling rope 7. The present embodiment is not limited to the material of the traction rope 7, and for example, a steel wire may be used as the traction rope 7.

Fig. 3 is a schematic structural diagram of the cover 5 according to this embodiment. As shown in fig. 3, in other examples, the cover 5 includes a rope rail 52 and a pressing cover 53, wherein the rope rail 52 is a cylindrical structure with one end open, and a limiting hole 521 communicated with the inside of the rope rail 52 is disposed at the end of the rope rail 52 opposite to the opening. The inside stopper 54 that is provided with of rope rail 52, stopper 54 cross-sectional area is greater than the area of spacing hole 521. The shape and structure of the limiting block 54 are not limited in this embodiment, and the limiting block may be any suitable shape such as a sphere, a cone, or a rectangular parallelepiped, and may be set by a person skilled in the art according to actual needs. One end of the hauling cable 7 passes through the limiting hole 521 and then is tightly connected with the limiting block 54, and the other end of the hauling cable is connected with a driving component such as a winch or a vehicle. The open end of the rope rail 52 can be connected to the top end of the gland 53 in a variety of ways, and illustratively, the rope rail and the gland can be connected by threads. Specifically, the opening of the rope rail 52 is provided with an internal thread, and correspondingly, the top end of the gland 53 is of a block structure and is provided with an external thread for being in threaded connection with the opening of the rope rail 52. The bottom end of the gland 53 is hermetically connected with the top of the cylinder 1, and illustratively, the gland 53 is connected with the cylinder 1 by screw threads and sealed by a sealing ring at the joint of the gland 53 and the cylinder 1.

By using the cover body 5 to seal the top of the cylinder body 1, the liquid in the oil gas well shaft is prevented from entering the inside of the cylinder body 1 from the top of the cylinder body 1. In addition, visual instrument passes through lid 5 and connects haulage rope 7 in the pit, and the staff only needs 7 motions of control haulage rope can control visual instrument in the pit in the inside height of oil gas well in the pit.

As shown in fig. 1, a power source 4 electrically connected to the illumination device 2 and the imaging device 3 described below is provided inside the cylinder 1, and the power source 4 is detachably connected to the inner wall of the cylinder 1, illustratively, by screws. In the present embodiment, the type of the power source 4 is not limited, and it may be a battery or a general dry battery as long as it can supply power to the illumination device 2 and the imaging device 3, and preferably, the battery is used as the power source 4 for the purpose of repeated use. If adopt the battery as power 4, can set up a wire rod of being connected with power 4 this moment, the other end setting of wire rod is at the opening part of barrel 1 top, is convenient for charge for the battery through the wire rod.

Through set up in barrel 1 inside the power 4 that lighting device 2 and camera device 3 electricity are connected, at the in-process of visual instrument work in the pit, the power 4 that is located inside lighting device 2 of barrel 1 and camera device 3 provides by power 4, guarantees lighting device 2 and camera device 3 steady operation.

With continued reference to fig. 1, a lighting device 2 is disposed inside the barrel 1, close to below. The lighting device 2 is detachably connected with the side wall of the barrel 1, the light emitting end of the lighting device 2 faces downwards, illustratively, a fixed seat is arranged inside the barrel 1, the lighting device 2 is arranged inside the fixed seat, and the fixed seat is connected with the barrel 1 through screws. It is easily understood that the connection mode of the lighting device 2 and the barrel 1 is not limited, and the worker in the art can set the connection mode according to the actual requirement.

The lighting device 2 may be any type of lamp, and for example, an LED lamp, a fluorescent lamp, or the like may be used as the lighting device 2. In this embodiment, the type of the lamp is not limited, and a person in the art may select any suitable lamp according to actual needs, and may also select an existing lamp on the market.

By arranging the lighting device 2 inside the barrel 1, during the operation of the underground visual tool, the light emitted by the lighting device 2 illuminates the inside of a dark oil-gas well shaft, so as to provide shooting conditions for the camera device 3 described below.

With continued reference to fig. 1, the imaging device 3 is provided inside the cylinder 1, and the side of the imaging device 3 provided with the lens faces downward, and at this time, the imaging device 3 with its own storage function can be selected. The present embodiment is not limited to the type of the imaging device 3, and those skilled in the art can select any suitable imaging device 3 according to actual needs, and of course, can select an existing imaging device 3 on the market.

As shown in fig. 1, the camera 3 is located below the inside of the cylinder 1 and is detachably connected to the inner wall of the cylinder 1, and exemplarily, the camera 3 is connected to the cylinder 1 by screws. It will be readily appreciated that the manner of connection of the camera device 3 to the barrel 1 is non-limiting and that other suitable means of connection may be selected by the skilled person.

Through at 1 inside camera device 3 that sets up of barrel, visual instrument is at the in-process of work in the pit, shoots the inside particular case of oil gas well pit shaft through camera device 3, when the inside abnormal conditions that appears of oil gas well, the image that staff's accessible camera device 3 shot clearly knows the inside condition of pit shaft. The subsequent accurate processing aiming at the abnormal condition is facilitated.

Continuing to refer to fig. 1, barrel 1 bottom is provided with transparent plate 6, and transparent plate 6 cross sectional shape and barrel 1 bottom shape phase-match, transparent plate 6 and barrel 1 sealing connection. Illustratively, the transparent plate 6 and the barrel 1 are in interference connection, and a sealing ring is arranged at the joint of the two or sealant is coated on the joint. Adopt sealing connection between barrel 1 and transparent plate 6, avoid inside the inside liquid of oil gas pit shaft to enter into barrel 1 from 1 bottom opening of barrel, damage the inside electrical components of barrel 1.

The transparent plate 6 may be made of various transparent materials, and for example, a quartz glass plate may be used as the transparent plate 6 to perform the functions of pressure resistance and corrosion resistance. Of course, other suitable materials may be used by those skilled in the art.

The operation of the downhole visualization tool provided in the present embodiment is briefly described below so that those skilled in the art can better understand the solution of the present embodiment.

Firstly, connecting the power supply 4, the camera device 3 and the lighting device 2 in the cylinder 1, and starting the operation of the camera device 3 and the lighting device 2; then connect lid 5 and transparent plate 6 respectively at the relative both ends opening of barrel 1 to guarantee the leakproofness, use haulage rope 7 to be connected between lid 5 and driving part such as hoist engine or vehicle, realize through the motion of driving part that visual instrument in the pit shaft inside motion of oil gas well in the pit shaft, visual instrument in the pit shaft inside motion in-process in the pit shaft, the inside lighting up of pit shaft is seen through transparent plate 6 to the light that barrel 1 internal lighting device 2 sent, camera device 3 shoots the inside particular case of pit shaft. When abnormal conditions in the shaft are shot, the driving part moves to drive the underground visual tool to ascend, so that a worker can take out the underground visual tool from the shaft; and finally, opening the cover body 5 at the top of the barrel body 1, taking the camera device 3 out of the opening at the top of the barrel body 1, and reading an image shot by the camera device 3, so that a worker can know the internal condition of the shaft.

The visual instrument in pit that this embodiment provided shoots the record with the inside condition of pit shaft at the visual instrument in-process of moving in the oil gas pit shaft in the pit to the staff can know the inside concrete abnormal conditions of pit shaft, and convenient follow-up is to the abnormal conditions, accurately handles oil gas well.

Example two

Fig. 4 shows a schematic structural diagram of a downhole visualization tool provided by the embodiment. On the basis of the first embodiment, as shown in fig. 4, a storage device 8 is further included. The storage device 8 is arranged in the barrel 1 and close to the opening position above the barrel 1 and is detachably connected with the inner wall of the barrel 1. The storage device 8 is electrically connected with the camera device 3 in the barrel 1 and is used for storing scene data shot by the camera device 3.

It will be readily appreciated that the specific structure of the memory device 8 is not limiting and may be a semiconductor memory or a magnetic surface memory. Alternatively, the storage device 8 may be provided with an SD card socket or a USB connector, and the scene data transmitted from the camera device 3 is written into an SD card or transmitted to a USB disk. Of course, a person skilled in the art may select another type of memory as the storage device 8 as long as the scene data transmitted from the camera 3 can be recorded.

Through set up detachable storage device 8 near the top opening part in barrel 1 inside and be used for recording the scenery data that camera device 3 transmitted, after using visual instrument shooting pit shaft internal conditions in the pit, the staff can open 5 convenient taking out storage device 8 of lid, then reads its inside data, and need not take out camera device 3 from barrel 1, the staff's operation of being convenient for.

Fig. 5 shows a schematic structural diagram of another downhole visualization tool provided in this embodiment, and fig. 6 shows a schematic structural diagram of another downhole visualization tool provided in this embodiment. As shown in fig. 5 and 6, a switch 9 is disposed inside the barrel 1, and the switch 9 is electrically connected to the power source 4 for controlling the power supply state of the power source 4, so as to control the power source 4 to supply power to the lighting device 2 and the power supply device or stop supplying power. Several implementations of the switch are described below, but it should be understood by those skilled in the art that the specific implementations of the switch described below should not be considered as specific limitations on the switch.

One possible implementation manner is that, as shown in fig. 5, the switch 9 is a remote control switch, and the specific structure of the remote control switch is not limited in this embodiment, and a person in the art may select any suitable remote control switch according to actual needs, and of course, an existing remote control switch on the market may also be selected, for example, a radio remote control switch.

The remote control switch and the barrel 1 can be connected in various ways, and for example, the remote control switch can be fastened on the inner wall of the barrel 1 by means of bonding, screwing or the like.

In another possible implementation, as shown in fig. 6, the switch 9 is an insulated switch, and in this case, a through hole communicating with the inside may be provided on the side wall of the cylinder 1. And arranging the insulation switch in a through hole on the side wall of the cylinder body 1 and tightly connecting the insulation switch with the through hole. It should be noted that, the joint of the through hole of the side wall of the cylinder 1 and the insulation switch needs to be sealed, for example, a sealing ring is arranged at the joint of the two, or a sealant is applied at the joint of the two. At this time, the part of the insulated switch positioned inside the cylinder body 1 is electrically connected with the power supply 4, and the part of the insulated switch positioned outside the cylinder body 1 is a control part of the switch 9.

The switch 9 is arranged in the barrel 1 and used for controlling the power supply state of the power supply 4 in the barrel 1, so that the working states of the illuminating device 2 and the camera device 3 are controlled, and the energy waste is reduced.

Fig. 7 is a schematic structural diagram of another downhole visualization tool according to an embodiment of the present invention. As shown in fig. 7, the downhole visualization tool may comprise both the switch 9 and the storage device 8. The switch 9 is electrically connected to the power source 4 for controlling the power supply state of the power source 4, so as to control the power source 4 to supply power to the lighting device 2 and the power supply device or stop supplying power. In addition, a storage device 8 electrically connected with the camera device 3 is arranged in the barrel 1 and used for recording the scenery data transmitted by the camera device 3.

EXAMPLE III

Fig. 8 is a schematic structural diagram of a downhole visualization tool according to the present embodiment, and fig. 9 is an enlarged schematic partial diagram of fig. 8. As shown in fig. 8 and 9, on the basis of the above embodiment, at least one slide 11 is provided on the inner side wall of the cylinder 1, and the slide 11 extends in a direction parallel to the axial direction of the cylinder 1 and is tightly connected with the side wall of the cylinder 1. It will be readily appreciated that the slideway 11 may be connected to the barrel 1 in a variety of ways, for example by welding or screws or the like.

With continued reference to fig. 8-9, the slide rail 11 is provided with a slide block 12 which is matched with the slide rail 11, the slide block 12 can slide back and forth in the extending direction of the slide rail 11, i.e. in the up-down direction in fig. 8, and meanwhile, the slide rail 11 and the slide block 12 can be separated at one end of the slide rail 11 close to the cover body 5. The present embodiment is not limited to the specific structure of the slide way 11 and the slider 12, as long as the slider 12 can reciprocate on the slide way 11 and can be separated from the slide way 11 from the end of the slide way 11 close to the cover 5.

At least one of the lighting device 2 and the camera device 3 is fixed on the sliding block 12 and can reciprocate along with the sliding block 12, as shown in fig. 8-9, the number of the sliding ways 11 is two, the two sliding ways 11 are respectively provided with the sliding block 12 matched with the two sliding ways, and the lighting device 2 and the camera device 3 are respectively fixed on two different sliding blocks 12. Of course, the power source 4 can also be fixed to the slide 12 as shown in fig. 8 to 9.

It will be readily appreciated that the number of ramps 11 is not limiting. For example, when the number of the slide ways 11 is one, the lighting device 2 and the imaging device 3 may be fixed to the same slide block 12 that is engaged with the slide way 11.

The inner wall of the barrel body 1 is provided with the slide way 11 with the extending direction parallel to the axial direction of the barrel body 1, and the illuminating device 2 and/or the camera shooting device 3 are/is fixed on the slide block 12 matched with the slide way 11, so that the illuminating device 2 or the camera shooting device 3 can be taken out of the barrel body 1 when the illuminating device 2 or the camera shooting device 3 needs to be maintained. In addition, the distance between the illuminating device 2 and/or the camera device 3 and the transparent plate 6 at the bottom of the cylinder 1 can be adjusted by adjusting the position of the slide block 12 on the slide rail 11, so that the brightness of the emergent light and the wide angle of shooting can be adjusted.

As shown in fig. 9, a position limiting device 13 is disposed below the slideway 11 inside the barrel 1, and the position limiting device 13 may adopt various structures, for example, a metal beam perpendicular to the side wall of the barrel 1 is disposed inside the barrel 1, and one end of the metal beam is fixedly connected with the barrel 1, for example, welded connection. The other end of the metal beam extends towards the axis direction of the barrel body. When the sliding block 12 moves to the lowest point on the slideway 11, the bottom surface of the sliding block 12 is propped against the top surface of the limiting device 13, and the sliding block 12 cannot move downwards continuously.

Through set up stop device 13 in barrel 1 inside, inject the distance that slider 12 moved towards transparent plate 6 direction, prevent that lighting device 2 and camera device 3 from being too close to transparent plate 6 distance, influencing the shooting effect.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A downhole visual tool is used for observing the internal state of an oil-gas well and is characterized by comprising a cylinder, a lighting device, a camera device, a power supply, a cover body and a transparent plate;

openings are formed in two opposite ends of the cylinder body, a transparent plate is arranged on one opening cover of the cylinder body, and a cover plate is arranged on the other opening cover of the cylinder body;

the illuminating device, the camera device and the power supply are arranged in the barrel, and the light outlet end of the illuminating device and the lens of the camera device face the transparent plate;

the lighting device and the camera device are respectively electrically connected with the power supply, and the power supply is used for supplying power to the lighting device and the camera device.

2. A downhole visualization tool as recited in claim 1, further comprising a storage device located within the barrel and disposed proximate an end of the cover, the storage device being electrically coupled to a camera device for storing images captured by the camera device.

3. A downhole visualization tool as recited in claim 2, wherein the storage device is removably attached to an inner wall of the barrel.

4. A downhole visualization tool as recited in claim 1, further comprising a switch electrically connected to the power source, the switch for controlling a power state of the power source.

5. A downhole visualization tool as recited in claim 4, wherein the switch is a remotely controlled switch.

6. A downhole visualization tool as recited in claim 4, wherein the switch is an insulated switch, the sidewall of the barrel being provided with a through hole, at least a portion of the insulated switch extending from the through hole to outside the barrel.

7. The downhole vision tool according to any one of claims 1 to 6, further comprising at least one slide way arranged on the inner side wall of the cylinder, wherein the slide way extends in a direction parallel to the axial direction of the cylinder, a slide block slidably connected to the slide way is arranged on the slide way, and the slide block and the slide way can be separated at one end of the slide way close to the cover body; and the lighting device and/or the camera device are fixedly connected with the sliding block.

8. The downhole vision tool of claim 7, further comprising a limiting device disposed inside the barrel for limiting the distance the slide moves toward the transparent plate.

9. A downhole visualization tool according to any of claims 1-6, wherein the barrel is tapered, the tapered larger diameter end cap being provided with the transparent plate and the tapered smaller diameter end cap being provided with the cover.

10. A downhole visualization tool according to any of claims 1-6, wherein the transparent plate is a quartz glass plate; and/or the presence of a gas in the gas,

the outer side of the cover body is provided with at least two connecting seats, the connecting seats are provided with connecting holes, and the connecting holes are used for fixing a traction rope.

Images