CN215927300U

CN215927300U - Intelligent transmission instrument for downhole tool

Info

Publication number: CN215927300U
Application number: CN202122068938.5U
Authority: CN
Inventors: 丁观世; 汪杰
Original assignee: Cnpc Cube Tianjin Technology Co ltd
Current assignee: Cnpc Cube Tianjin Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-01
Anticipated expiration: 2031-08-31

Abstract

The utility model provides an intelligent transmission instrument for a downhole tool, which comprises a transport mechanism with a tubular structure, wherein the tail end of the transport mechanism is coaxially and hermetically connected with a fixed pipe; transport mechanism has seted up the spread groove including connecting the inner tube, the tail end of connecting the inner tube, the drive groove has been seted up to the spread groove bottom surface, fixed mounting has driving motor and control system in the drive groove, driving motor output end transmission is connected with moving mechanism, moving mechanism is used for removing the transmission instrument. The utility model can ensure that the underground camera can not only move in a vertical well, but also move in a horizontal pipeline, so that the underground camera can obtain a video image in the horizontal well and assist in excavating the horizontal well and exploiting oil.

Description

Intelligent transmission instrument for downhole tool

Technical Field

The utility model relates to the technical field of underground tool transportation devices, in particular to an intelligent underground tool transmission instrument.

Background

The oil field well comprises a vertical well and a horizontal well, and the horizontal well can continuously penetrate through a plurality of thin oil layers, so that the oil layers without industrial exploitation value can be produced, the crude oil recovery rate is improved, and the horizontal well gradually replaces the vertical well. The horizontal well is including burying underground horizontal oil pipe deeply, and the excavation and the exploitation oil of horizontal oil pipe are all accomplished by the machine, consequently need use the condition of making a video recording appearance in the pit to according to the condition in the well observed, pointed excavation and exploitation, but the instrument of making a video recording in the pit on the market has only connected data transmission optical cable usually, can only be used for exploring vertical pipeline, and not turn by oneself and the function that removes in horizontal pipeline.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an intelligent transmission instrument for an underground tool, which can enable an underground camera to move not only in a vertical well but also in a horizontal pipeline, so that the underground camera can acquire a video image in the horizontal well to assist in excavating a horizontal well and exploiting oil.

In order to solve the technical problems, the utility model adopts the technical scheme that:

an intelligent transmission instrument for downhole tools comprises a transport mechanism with a tubular structure, wherein the tail end of the transport mechanism is fixedly connected with a fixing pipe for fixing a downhole camera in a sealing manner;

the transport mechanism is including connecting the inner tube, the spread groove has been seted up to the tail end of connecting the inner tube, the drive groove has been seted up to the spread groove bottom surface, fixed mounting has driving motor and control system in the drive groove, the driving motor output end transmission is connected with moving mechanism, moving mechanism is used for making the transmission appearance remove.

Furthermore, the moving mechanism comprises a rotating shaft in transmission connection with the driving motor, the rotating shaft is movably connected with the connecting inner pipe through a bearing, and a plurality of moving single spiral teeth are fixedly mounted on the outer side of the rotating shaft.

Furthermore, a movable bevel gear is fixedly mounted at the tail end of the rotating shaft, the output end of the driving motor extends out of the inner pipe in a sealing mode, and a driving bevel gear which is in transmission connection with the movable bevel gear is fixedly mounted at the extending end of the driving motor.

Furthermore, the rotating mechanism used for enabling the single screw teeth to be in contact with the well wall is installed at the connecting end of the movable single screw teeth, and the rotating mechanism is fixedly connected with the connecting rotating shaft.

Furthermore, the outer wall of the connecting inner pipe is fixedly provided with a signal antenna connected with a control system.

Furthermore, a pressure sensor is installed at the joint of the driving motor and the driving bevel gear, and the pressure sensor is connected with the input end of the control system.

Further, the fixed pipe is in threaded connection with the conveying mechanism.

Furthermore, the fixed pipe middle section has a plurality of dead levers along the radial direction activity joint, the dead lever bottom surface is installed and is used for making the spacing turbine of dead lever radial movement, spacing turbine external toothing has the auto-lock worm, auto-lock worm one end is stretched out fixed pipe setting.

Further, circular-arc spout has been seted up to spacing turbine top surface, dead lever bottom surface fixed mounting has the location card platform, location card platform activity joint is in the spout.

Furthermore, the fixed end of the fixed rod is of a circular arc structure.

The utility model has the advantages and positive effects that:

through making a video recording the appearance fixed mounting in the pit on transmission instrument, transmission instrument is including coaxial fixed connection's fixed pipe and transport mechanism, the fixed pipe is used for fixing the front end at transmission instrument with the end of making a video recording in the pit, do not influence and make a video recording and obtain the video in the pit, the last moving mechanism who can take transmission instrument to remove in the horizontal well of installing of transport mechanism, the last single spiral tooth that removes that still installs of moving mechanism, transmission instrument during operation, moving mechanism drives and removes single spiral tooth corotation or reversal, drive transmission instrument and advance or retreat, transmission instrument takes the appearance of making a video recording in the oil pipe in the pit and advances or retreat, make the appearance of making a video recording in the pit not only can with remove in vertical well, also can remove in the horizontal pipeline, so that acquire the video information in the horizontal well.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front cross-sectional view of a downhole tool smart transmission instrument of the present invention;

FIG. 2 is a right side view of a downhole tool smart transmission instrument of the present invention;

fig. 3 is a schematic view taken generally at a-a of fig. 1.

In the figure: 1. a camera; 2. a transport mechanism; 201. connecting the inner pipes; 2011. a drive motor; 2012. driving the helical gear; 2013. a signal antenna; 202. a moving mechanism; 2021. a rotating shaft; 2022. a bearing; 2023. moving the helical gear; 3. a fixed tube; 301. fixing the rod; 3011. positioning the clamping table; 302. limiting the turbine; 3021. a chute; 303. a self-locking worm; 4. moving the single helical teeth; 401. a slewing mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides an intelligent transmission instrument for a downhole tool, which comprises a transport mechanism 2 with a tubular structure, wherein the tail end of the transport mechanism 2 is fixedly connected with a fixed pipe 3, and the fixed pipe 3 is coaxially and fixedly connected with the transport mechanism 2, as shown in figures 1 and 2. When using the transmission instrument, the end of making a video recording of appearance 1 in the pit passes fixed pipe 3, fixed pipe 3 is fixed with appearance 1 in the pit again, the end of conveniently making a video recording penetrates transport mechanism 2, fixed pipe 3 fixed connection is at the tail end of transport mechanism 2, in order to fix the head end at transport mechanism 2 with the camera end, do not influence appearance 1 in the pit and make a video recording, transport mechanism 2 drives appearance 1 and fixed pipe 3 in the pit and removes in the horizontal well, acquire the video image in the horizontal well.

Transport mechanism 2 has seted up the spread groove including connecting inner tube 201, the tail end of connecting inner tube 201, and the spread groove is used for with fixed tube 3 sealing fixed connection. Preferably, a connecting thread is formed on the side wall of the connecting groove, and the fixed pipe 3 is connected with the conveying mechanism 2 in a threaded manner, so that the sealing performance of the bottom surface of the connecting groove is improved. In order to further ensure the tightness of the bottom surface of the connecting groove, a sealing gasket can be placed on the bottom surface of the connecting groove bottom, so that the tightness is improved, and the connection stability of the connecting inner pipe 201 and the fixed pipe 3 can be improved.

The drive groove has been seted up to the bottom surface of spread groove, and fixed mounting has driving motor 2011 and control system in the drive groove, and driving motor 2011 is connected to control system's output electricity, and driving motor 2011's output transmission is connected with moving mechanism 202, and driving motor 2011 can make moving mechanism 202 rotate along the axis direction, makes moving mechanism 202 drive make a video recording appearance 1 and fixed tube 3 remove in the horizontal well in the pit.

The moving mechanism 202 comprises a rotating shaft 2021 in transmission connection with the driving motor 2011, and the rotating shaft 2021 is movably sleeved at the front end of the connecting inner tube 201 through a bearing 2022. Preferably, the movable helical gear 2023 is fixedly installed at the tail end of the rotating shaft 2021, the output end of the driving motor 2011 is hermetically extended out of the inner tube 201, the extended end of the driving motor 2011 is fixedly installed with the driving helical gear 2012, the driving helical gear 2012 is in transmission connection with the movable helical gear 2023, and the driving motor 2011 drives the rotating shaft 2021 to rotate through the driving helical gear 2012.

As shown in fig. 2, a plurality of moving single screw teeth 4 are installed on the outer side of the rotating shaft 2021, so that the rotating shaft 2021 can drive the plurality of moving single screw teeth 4 to rotate, the moving single screw teeth 4 are in a single screw tooth structure, and the moving single screw teeth 4 are installed on the outer side of the rotating shaft 2021 in an inclined manner, and when the moving single screw teeth 4 rotate, the moving single screw teeth 4 can drive the transmission instrument to move in the oil pipe.

In order to ensure that the movable single helical tooth 4 is always contacted with the inner wall of the oil pipe, a swing mechanism 401 is arranged at the connecting end of the movable single helical tooth 4, the principle of the swing mechanism 401 is the same as that of a tape measure, a return torque belt is arranged inside the swing mechanism 401, and meanwhile, the tail end of the return torque belt is fixedly connected with the connecting end of the movable single helical tooth 4, so that the movable single helical tooth 4 always has certain torsional force, and the swing mechanism 401 is fixedly connected with a connecting rotating shaft 2021.

A pressure sensor is installed at the joint of the driving motor 2011 and the moving mechanism 202 to detect the force applied to the moving single screw tooth 4, and the pressure sensor is connected with the input end of the control system. When the moving single helical tooth 4 is clamped, the pressure value detected by the pressure sensor is increased, the control system controls the driving motor 2011 to rotate reversely in the forward rotation mode, and the transmission instrument can be prevented from being clamped in the oil pipe. Preferably, the pressure sensor may be installed at a connection of the driving bevel gear 2012 and the driving motor 2011.

The outer wall of the connecting inner pipe 201 is fixedly provided with a signal antenna 2013, the signal antenna 2013 is electrically connected with an input end connected with a control system, and the control system can receive external information conveniently. The control system can receive forward and backward commands from the outside to control the advancing and retreating of the transmission instrument in the horizontal well.

On the cross-section of fixed 3 middle sections of pipe, along the radius direction activity joint in cross-section have a plurality of dead levers 301, and dead lever 301 is used for fixed camera 1 in the pit, because camera 1 in the pit that uses usually on the market is the cylinder structure, can be with the stiff end of dead lever 301 for the circular arc structure, improves the fixity of dead lever 301.

As shown in fig. 1 and 3, a limiting worm gear 302 is mounted on the bottom surface of the fixing rod 301, an arc-shaped chute 3021 is formed in the top surface of the limiting worm gear 302, a positioning clamp 3011 is fixedly mounted on the bottom surface of the fixing rod 301, the positioning clamp 3011 is movably clamped in the chute 3021, and the fixing rod 301 is driven to move radially when the limiting worm gear 302 rotates. For the convenient rotation condition of adjusting spacing turbine 302, spacing turbine 302 external toothing has auto-lock worm 303, and stretches out the setting of fixed pipe 3 with auto-lock worm 303 one end, can adjust the dead lever 301 radial movement condition in the outside of fixed pipe 3, and fixed back of camera 1 in the pit, because the auto-lock performance of turbine worm, camera 1 in the pit can not drop.

The working principle and the working process of the utility model are as follows:

the underground camera 1 comprises a camera end and an installation rod, wherein one end of the installation rod, which is far away from the camera end, is connected with an optical cable for signal transmission. When the underground camera 1 is installed, the camera shooting end penetrates through the fixed pipe 3, the self-locking worm 303 is rotated in the forward direction, the limiting worm wheel 302 rotates in the forward direction, the fixed rod 301 moves along the radius direction of the fixed pipe 3, and the installation rod is clamped. With fixed pipe 3 and the coaxial alignment of transport mechanism 2, make the end of making a video recording overlap into transport mechanism 2, in with fixed pipe 3 screw in spread groove, accomplish the fixed of camera 1 in the pit.

The transmission instrument provided with the underground camera 1 is placed into a horizontal well, the movable single helical tooth 4 is extruded by the inner wall of an oil pipe, the inclination angle of the movable single helical tooth 4 and the fixed pipe 3 is changed according to the radius of the oil pipe, and the movable single helical tooth 4 is guaranteed to be always in contact with the inner wall of the oil pipe. An advancing instruction is input to the control system through the signal antenna 2013, the control system controls the driving motor 2011 to rotate positively, the driving bevel gear 2012 drives the moving bevel gear 2023 to rotate, the moving bevel gear 2023 drives the rotating shaft 2021 to rotate, the rotating shaft 2021 drives the moving single helical tooth 4 to rotate, so that the transmission instrument moves in the horizontal well, and the transmission instrument drives the underground camera 1 to move forward, so that the underground camera 1 can obtain the condition in the horizontal well.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The intelligent transmission instrument for the downhole tool is characterized by comprising a transport mechanism (2) with a tubular structure, wherein the tail end of the transport mechanism (2) is coaxially and hermetically connected with a fixed pipe (3);

transport mechanism (2) including connecting inner tube (201), the spread groove has been seted up to the tail end of connecting inner tube (201), the drive groove has been seted up to the spread groove bottom surface, drive inslot fixed mounting has driving motor (2011) and control system, driving motor (2011) output end transmission is connected with moving mechanism (202), moving mechanism (202) are used for removing transmission instrument.

2. The intelligent transmission instrument of the downhole tool according to claim 1, wherein the moving mechanism (202) comprises a rotating shaft (2021) in transmission connection with a driving motor (2011), the rotating shaft (2021) is movably sleeved at the front end of the connection inner pipe (201) through a bearing (2022), and a plurality of moving single helical teeth (4) are fixedly installed on the outer side of the rotating shaft (2021).

3. The intelligent transmission instrument of the downhole tool according to claim 2, wherein a movable helical gear (2023) is fixedly mounted at the tail end of the rotating shaft (2021), the output end of the driving motor (2011) is hermetically extended out of the inner pipe (201), and a driving helical gear (2012) for being in transmission connection with the movable helical gear (2023) is fixedly mounted at the extended end of the driving motor (2011).

4. The intelligent transmission instrument for the downhole tool according to claim 2, wherein the connecting end of the moving single screw tooth (4) is provided with a swing mechanism (401) for enabling the single screw tooth to contact with the well wall, and the swing mechanism (401) is fixedly connected with the connecting rotating shaft (2021).

5. A downhole tool intelligent transmission instrument according to claim 1, wherein a signal antenna (2013) connected with a control system is fixedly installed on the outer wall of the connecting inner pipe (201).

6. The intelligent transmission instrument of the downhole tool according to claim 1, wherein a pressure sensor is installed between the driving motor (2011) and the driving bevel gear (2012), and the pressure sensor is connected with an input end of a control system.

7. A downhole tool smart transmitter according to claim 1, wherein the fixed tube (3) is threadedly connected to the conveyance mechanism (2).

8. The intelligent transmission instrument for the downhole tool according to claim 1, wherein a plurality of fixing rods (301) are movably clamped in the middle section of the fixing tube (3) along a radius direction, a limiting worm wheel (302) for enabling the fixing rods (301) to move radially is mounted on the bottom surface of each fixing rod (301), a self-locking worm (303) is meshed outside each limiting worm wheel (302), and one end of each self-locking worm (303) extends out of the fixing tube (3).

9. The intelligent transmission instrument for the downhole tool according to claim 8, wherein the top surface of the limit turbine (302) is provided with an arc-shaped chute (3021), the bottom surface of the fixed rod (301) is fixedly provided with a positioning clamp table (3011), and the positioning clamp table (3011) is movably clamped in the chute (3021).

10. A downhole tool smart transmitter as claimed in claim 8, wherein the fixed end of the fixing rod (301) is of a circular arc structure.