Oil pipe drift diameter device

Abstract

The invention relates to the technical field of oil field recovery, in particular to an oil pipe drift diameter device to solve the problems that existing oil pipe drift diameter equipment is poor in anti-explosion performance, poor in cleaning effect and prone to damage, and safety and efficiency are affected. The device comprises a drift diameter gauge, a driving mechanism and a storage assembly, the drift diameter gauge is inserted into the storage assembly; one end of the drift diameter gauge is fixedly connected with the driving mechanism; the end, away from the drift diameter gauge, connected with the driving mechanism can be in butt joint with the oil pipe. The drift diameter gauge moves in the horizontal direction under the control of the driving mechanism, so that blockages on the inner wall of the oil pipe can be detected and scraped off in a controllable mode. The explosion-proof performance and the operation safety of the equipment are obviously improved, and high efficiency and safety of operation are ensured.

Description

Technical Field

[0001] This invention relates to the field of oilfield recovery technology, and in particular to a tubing diameter measuring device. Background Technology

[0002] Existing tubing gauging equipment suffers from several significant drawbacks in practical operation, primarily manifested in poor explosion-proof performance, low cleaning efficiency, and susceptibility to damage. Tubing gauging is an indispensable step in well workover operations, its main purpose being to check the patency of the tubing to ensure the smooth progress of subsequent operations. However, traditional gauging gauges employ a free-fall method, which has revealed several problems in practical applications.

[0003] First, the existing equipment lacks sufficient explosion-proof performance. During free fall, the gauge slides rapidly down the tubing and generates significant impact force when it collides with the small pulley at the bottom of the tubing or the V-groove of the pipe delivery machine. This impact force can not only deform the equipment but also ignite sparks. Since the oil well operating environment typically contains flammable gases or liquids, these sparks could potentially cause combustion or explosion, increasing the safety hazards of the operation.

[0004] Secondly, existing gauging gauges are insufficient in cleaning the inner walls of tubing. Although their primary purpose is to check tubing patency, the gauge may not effectively remove scale or other impurities during its descent. Scale buildup in the tubing can impede flow, negatively impacting well workover operations. Traditional cleaning methods often fail to completely remove these impurities, resulting in unsatisfactory cleaning outcomes.

[0005] Furthermore, if the gauge collides with equipment or structural components at the bottom of the tubing while rapidly sliding down inside, it may cause damage or deformation to the equipment. Such a collision not only affects the normal operation of the equipment but may also pose a safety hazard to operators, especially if the equipment is deformed, in which case operators may be injured. Summary of the Invention

[0006] This invention provides an oil pipe gauging device to alleviate the problems of poor explosion-proof performance, poor cleaning effect, and easy damage of existing oil pipe gauging equipment, which affect safety and efficiency.

[0007] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0008] This invention provides an oil pipe gauging device, including a gauging gauge, a driving mechanism, and a housing assembly;

[0009] The veneer gauge is inserted into the storage assembly;

[0010] One end of the gauging gauge is fixedly connected to the drive mechanism;

[0011] The end of the housing component that is away from the gauge and the drive mechanism can be connected to the oil pipe.

[0012] Furthermore,

[0013] The drive mechanism includes a pneumatic motor, a sprocket assembly, and an anti-bend chain;

[0014] The air-pump motor is rotatably connected to the sprocket assembly via a coupling;

[0015] The sprocket assembly is engaged with the anti-bend chain;

[0016] One end of the anti-bend chain is fixedly connected to the gauge at the end furthest from the interface.

[0017] Furthermore,

[0018] Storage components include storage tubes;

[0019] The gauge is slidably connected to the receiving tube.

[0020] Furthermore,

[0021] The end of the receiving tube that connects to the oil pipe is equipped with an outwardly expanding flared opening.

[0022] Furthermore,

[0023] The drive mechanism also includes a chain disc;

[0024] The chain reel is positioned above the storage tube;

[0025] The anti-bend chain is wound inside the chain reel.

[0026] Furthermore,

[0027] The drive mechanism also includes a regenerative air motor;

[0028] The recovery air motor is connected to the chain disc for rotation.

[0029] Furthermore,

[0030] The receiving tube is clamped to the oil pipe in a horizontal direction.

[0031] The beneficial effects of the oil pipe diameter measuring device in this invention are analyzed as follows:

[0032] This device includes a gauge, a drive mechanism, and a housing assembly; the gauge is inserted into the housing assembly; one end of the gauge is fixedly connected to the drive mechanism; the end of the housing assembly away from the gauge and connected to the drive mechanism can be connected to the oil pipe.

[0033] Compared with existing technologies, this solution avoids the safety risks caused by the gauge sliding down the oil pipe at high speed due to its own weight by using a horizontally set storage component and drive mechanism. Under the control of the drive mechanism, the gauge moves horizontally, which can detect and scrape the blockage on the inner wall of the oil pipe in a controllable manner, significantly improving the explosion-proof performance and operational safety of the equipment, and ensuring the efficiency and safety of the operation. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the oil pipe bore device provided in an embodiment of the present invention;

[0036] Figure 2 A first-view structural schematic diagram of the oil pipe bore device provided for an embodiment of the present invention;

[0037] Figure 3 This is a second-view structural schematic diagram of the oil pipe diameter device provided in an embodiment of the present invention.

[0038] icon:

[0039] 100-gauge;

[0040] 200-Drive mechanism; 210-Pipe air motor; 220-Sprocket assembly; 230-Anti-bend chain; 240-Chain disc; 250-Recovery air motor;

[0041] 300 - Storage component; 310 - Storage tube; 311 - Flared opening. Detailed Implementation

[0042] The existing equipment lacks sufficient explosion-proof performance. During free fall, the gauge slides rapidly down the tubing and generates significant impact force when it collides with the small pulley at the bottom of the tubing or the V-groove of the pipe delivery machine. This impact force can not only deform the equipment but also ignite sparks. Since the oil well operating environment typically contains flammable gases or liquids, these sparks could ignite combustion or explosion, increasing operational safety hazards. Furthermore, the equipment is highly susceptible to collision with equipment or structural components at the bottom of the tubing, potentially causing damage or deformation. Such collisions not only affect the normal operation of the equipment but also pose safety hazards to operators, especially in the event of equipment deformation, where operators may be injured.

[0043] In view of this, such as Figures 1 to 3 The present solution provides an oil pipe diameter device to alleviate the above-mentioned problems.

[0044] This device includes a gauge 100, a drive mechanism 200, and a storage assembly 300.

[0045] The gauge 100 is inserted into the storage component 300;

[0046] One end of the gauge 100 is fixedly connected to the drive mechanism 200;

[0047] The end of the storage component 300 that is away from the gauge 100 and connected to the drive mechanism 200 can be connected to the oil pipe.

[0048] Specifically, the receiving component 300 of this device is horizontally positioned. After the receiving component 300 is connected to the oil pipe, the drive mechanism 200 controls the gauge 100 to move horizontally inside the oil pipe to detect and scrape away blockages in the inner wall of the oil pipe. Compared with the prior art where the gauge 100 moves vertically, this solution can control the movement of the gauge 100 in a controllable manner, avoiding the safety risks caused by high-speed impact of the gauge 100.

[0049] Regarding the shape and structure of the drive mechanism 200, such as Figure 2 and Figure 3 As shown:

[0050] The drive mechanism 200 includes a pipe-driven air motor 210, a sprocket assembly 220, and an anti-bend chain 230;

[0051] The air-pneumatic motor 210 is rotatably connected to the sprocket assembly 220 via a coupling;

[0052] The sprocket assembly 220 is engaged with the anti-bend chain 230;

[0053] One end of the anti-bend chain 230 is fixedly connected to the gauge 100 at the end furthest from the interface.

[0054] Specifically, the sprocket assembly 220 includes a drive shaft, on which a sprocket is mounted. The sprocket is fixedly connected to the drive shaft via a key connection. A bearing housing is provided on each side of the drive shaft, and the bearing housing is installed on the base via a threaded connection. The drive shaft is rotatably connected to the air motor 210 via a coupling. The anti-bending chain 230 is engaged with the sprocket. The air motor 210 can control the rigid conveying or retraction of the anti-bending chain 230 by forward and reverse rotation.

[0055] In this solution, the storage component 300 includes a storage tube 310;

[0056] The gauge 100 is slidably connected to the receiving tube 310.

[0057] Specifically, the storage tube 310 is set in a horizontal direction, and one end of the storage tube 310 is connected to the base of the sprocket assembly 220 through a bracket. The axis of the anti-bending chain 230 coincides with the axis of the storage tube 310.

[0058] Preferably, the end of the receiving tube 310 that connects with the oil pipe is provided with an outwardly expanding flared opening 311, the maximum inner diameter of the flared opening 311 being larger than the outer diameter of the oil pipe, so that the end of the oil pipe can be smoothly connected to the receiving tube 310.

[0059] In this design, the drive mechanism 200 also includes a chain disc 240;

[0060] The chain disc 240 is positioned above the storage tube 310;

[0061] The anti-bend chain 230 is wound inside the chain disc 240.

[0062] Specifically, the chain disc 240 consists of bearings, PVC plastic sheets, and steel plates. When the pneumatic motor 210 retracts the anti-bending chain 230, the anti-bending chain 230 can wind around the bearings of the chain disc 240. PVC plastic sheets and steel plates are sequentially fitted onto both ends of the bearings, and are fixedly connected by a ring-shaped array of bolts. The PVC plastic sheets and steel plates are each provided with multiple weight-reducing holes symmetrically arranged around the axis. The weight-reducing holes are designed according to the dimensions of the chain disc 240. Figure 2 As shown, four quarter-circle openings are provided on the inner side of the chain disc 240, and four quarter-circle ring openings are provided on the outer side of the chain disc 240. Of course, appropriate openings can also be selected according to the selected material parameters to facilitate the movement of this device.

[0063] In this plan, such as Figure 1 As shown, the drive mechanism 200 also includes a recovery air motor 250;

[0064] The recovery air motor 250 is rotatably connected to the chain disc 240.

[0065] Specifically, the recovery air motor 250 is positioned on one side of the bearing of the chain disc 240 and is meshed with the bearing via a gear mechanism; Figure 2 Taking the perspective of the middle as an example, the recovery air motor 250 can always slowly drive the chain disc 240 to rotate in the counterclockwise direction, so that when the pipe air motor 210 controls the rigid conveying of the anti-bend chain 230, it can tighten the anti-bend chain 230, so that the anti-bend chain 230 is always in a tightly arranged state, thereby improving its rigid conveying effect.

[0066] The operating procedures for this device are as follows:

[0067] The first step is to fix the work position, install the device on the liftable outriggers, and move it to the side of the pipe bridge that is closer to the workover rig;

[0068] The second step is to connect the air source by connecting the air inlets of the inlet air motor 210 and the outlet air motor 250 to the air source outlet of the workover rig via air pressure lines.

[0069] The third step is to purify the tubing. Align the bell mouth 311 of the receiving pipe 310 with the tubing end coupling, and then turn on the forward switch of the tubing purging air motor 210 and the switch of the recovery air motor 250 respectively to control the gauge 100 to move forward and push out the blockage in the tubing.

[0070] Fourth step, retract the gauge 100. After the gauge 100 protrudes from the male thread of the oil pipe, turn off the forward switch of the pipe-connecting air motor 210 and turn on the retraction switch of the pipe-connecting air motor 210. After the gauge 100 is completely retracted into the receiving pipe 310, turn off the retraction switch of the pipe-connecting air motor 210.

[0071] This solution has at least the following beneficial effects:

[0072] Due to gravity, existing equipment experiences significant impact when the gauge rapidly slides down to the bottom of the tubing. This can not only deform the equipment but also potentially ignite sparks. Especially in oil well environments containing flammable gases or liquids, these sparks can easily ignite combustion or explosion, increasing safety hazards. Furthermore, equipment deformation and impacts can also cause potential injury to operators.

[0073] This solution, through a horizontally positioned storage component 300 and drive mechanism 200, avoids the safety risks associated with the gauge 100 sliding down the oil pipe at high speed due to its own weight. Under the control of the drive mechanism 200, the gauge 100 moves horizontally, thus enabling the controllable detection and removal of blockages from the inner wall of the oil pipe. The drive mechanism 200 includes a pipe-clearing air motor 210, a sprocket assembly 220, and an anti-bend chain 230. The sprocket assembly 220 transmits power from the pipe-clearing air motor 210 to the anti-bend chain 230, thereby controlling the movement of the gauge 100. The sprocket assembly consists of a drive shaft, a sprocket, and a bearing housing. The anti-bend chain 230 is rigidly conveyed or retracted under the drive of the sprocket.

[0074] The storage assembly 300 includes a horizontally positioned storage tube 310. One end of the storage tube 310 is connected to the base of the sprocket assembly 220, and the other end is connected to the oil pipe. To facilitate smooth connection of the oil pipe end, the interface of the storage tube 310 is designed as an outwardly expanding flared opening 310. The anti-bend chain 230 is wound inside the chain disc 240. Driven by the recovery air motor 250, the chain disc 240 can rotate slowly, thereby ensuring that the anti-bend chain 230 remains tightly arranged during conveying and retrieval, enhancing its rigid conveying effect.

[0075] This solution allows operators to perform tubing gauging in a horizontal position, avoiding the dangers of free-fall impacts and significantly improving the equipment's explosion-proof performance and operational safety. Furthermore, the device is easy to install and operate, with specific steps including fixing the work position, connecting the gas source, tubing wellbore cleaning, and gauge retrieval, ensuring efficient and safe operations. This design not only enhances the equipment's practicality and safety but also reduces maintenance costs caused by equipment deformation and impacts, demonstrating significant application value.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe gauge, characterized in that: Includes a gauge (100), a drive mechanism (200), and a storage assembly (300); The gauge (100) is inserted into the storage assembly (300); One end of the gauging gauge (100) is fixedly connected to the drive mechanism (200); The end of the storage component (300) that is away from the gauge (100) and connected to the drive mechanism (200) can be connected to the oil pipe.

2. The tubing gauge according to claim 1, characterized in that: The drive mechanism (200) includes a pipe-driven air motor (210), a sprocket assembly (220), and an anti-bend chain (230); The air-operated motor (210) is rotatably connected to the sprocket assembly (220) via a coupling; The sprocket assembly (220) is engaged with the anti-bend chain (230); One end of the anti-bend chain (230) is fixedly connected to the gauge (100) located away from the end of the interface.

3. The tubing gauge according to claim 2, characterized in that: The storage component (300) includes a storage tube (310); The gauge (100) is slidably connected to the receiving tube (310).

4. The tubing gauge according to claim 3, characterized in that: The receiving tube (310) has an outwardly expanding flared end (311) at the end where it connects with the oil pipe.

5. The tubing gauge according to claim 4, characterized in that: The drive mechanism (200) also includes a chain disc (240); The chain disc (240) is positioned above the storage tube (310); The anti-bend chain (230) is wound inside the chain disc (240).

6. The tubing gauge according to claim 5, characterized in that: The drive mechanism (200) also includes a recovery air motor (250); The recovery air motor (250) is rotatably connected to the chain disc (240).

7. The tubing gauge according to claim 6, characterized in that: The receiving tube (310) is connected to the oil pipe in the horizontal direction.

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