Multifunctional operation rack of shaft liquid level monitor

By providing a multi-functional operation bench with a height adjustable wellbore fluid level monitor, the safety risks and installation difficulties of high-level wellhead fluid level monitoring operations are solved, and safe and efficient fluid level monitoring and long-term power supply are achieved.

CN120061808APending Publication Date: 2025-05-30CNPC BOHAI DRILLING ENG +1
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Patent Information

Application Number
CN202311629189.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-30
Publication Date
2025-05-30

AI Technical Summary

Technical Problem

In oil and gas fields, when high gas production trees or oil production trees wellheads require dynamic liquid level monitoring, the operators need to climb to work, which poses a high safety risk, and the lack of supporting support mounts makes the installation and fixing of the liquid level monitor time-consuming and labor-intensive, making it difficult to operate.

Method used

It provides a multi-functional working platform for wellbore fluid level monitors, including a construction platform and a mobile base that can adjust the height in the vertical direction. The construction platform is equipped with a lifting device, a cross-type lifting arm and an operating table. The lifting device is composed of a lifting cylinder, a sleeve and a support rod. The cross-type lifting arm is threaded to the side of the operating table. A liquid level monitor is provided on the operating table, and a guardrail and a protective umbrella are equipped with a solar panel for power supply.

Benefits of technology

Through the height-adjustable construction platform, the difficulty of climbing for workers is reduced, the operation safety is improved, and the use efficiency and safety of the liquid level monitor is improved through solar panel power supply and protection of protective umbrellas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of oil and gas field development, in particular to a multifunctional operation rack of a shaft liquid level monitor. The problem that high safety risks exist during climbing operation is solved. The invention provides a multifunctional operation rack for a shaft liquid level monitor. The multifunctional operation rack comprises a construction platform and a movable base, wherein the height of the construction platform can be adjusted in the vertical direction; the construction platform is arranged on the movable base. The construction platform comprises a lifting device, crossed lifting arms arranged on the two sides of the lifting device and an operation table arranged on the upper portion of the lifting device. The lifting device comprises a lifting cylinder, a sleeve and a supporting rod; when a constructor works, the working height of the construction platform can be changed by using the lifting device according to the height of a wellhead of a gas production tree or a Christmas tree, so that the constructor can complete the working requirement without climbing a well wall to carry out climbing operation, the construction difficulty of the constructor is reduced, and the working safety of the constructor is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas field development, and in particular to a multi-functional working platform for a wellbore liquid level monitor. Background Art

[0002] Wellbore dynamic liquid level monitoring is a key technology in workover operations. For the commonly used echo method wellbore dynamic liquid level gauge, the liquid level monitoring instrument needs to be effectively connected to the relevant gate outlets of the wellhead gas production tree or oil production tree to implement effective monitoring. How to effectively connect the liquid level monitoring instrument to the relevant outlet gates of the wellhead gas production tree or oil production tree to ensure long-term continuous monitoring and the safety of the liquid level monitoring equipment during the operation process is one of the key processes for effective liquid level monitoring.

[0003] In on-site operations, the wellhead heights of gas production trees or oil production trees in different well sites are different. When it is necessary to monitor the dynamic liquid level in the gas production pipe string in the wellbore, it is often necessary to connect the interface of the liquid level monitor to the side wing gate of the oil production tree or gas production tree. When the wellhead of the oil production tree or gas production tree is relatively high from the ground, limited by the length of the high-pressure gas transmission pipe of the nitrogen cylinder and the length of the data acquisition cable (to ensure data accuracy, it cannot be too long), it is necessary for the operator to climb to the wellhead to connect the gas transmission pipe channel interface of the liquid level monitor to the side wing gate of the oil production tree or gas production tree to conduct dynamic liquid level monitoring. High-altitude climbing operations pose relatively high risks to personnel. In addition, because the liquid level monitor is far from the ground and lacks a supporting platform, the installation and fixation of the liquid level monitor are time-consuming and laborious, and the operation is difficult. Summary of the Invention

[0004] In the prior art, when the gas production tree or oil production tree well is relatively high, the operator needs to climb to work, which poses a relatively high safety risk.

[0005] In order to alleviate the above technical problems, the technical solution provided by the present invention is as follows:

[0006] The present invention provides a multi-functional working platform for a wellbore liquid level monitor, including a construction platform and a mobile base that can adjust the height in the vertical direction; the construction platform is arranged on the upper part of the mobile base; the construction platform includes a lifting device, cross-type lifting arms arranged on both sides of the lifting device, and an operating platform arranged on the upper part of the lifting device; the lifting device includes a lifting cylinder, a sleeve, and a support rod; the lifting cylinder is fixedly connected to the upper part of the mobile base; the sleeve is arranged on the upper part of the lifting cylinder and is connected to the lifting cylinder in a through manner; the support rod is movably connected to the upper part of the sleeve; the support rod is fixedly connected to the operating platform; the cross-type lifting arms are threadedly connected to the side part of the operating platform.

[0007] Furthermore, a card slot is arranged on the side wall of the sleeve; a screw hole is arranged in the card slot.

[0008] Furthermore, the construction platform further includes a guardrail; the guardrail is arranged around the upper part of the operating platform.

[0009] Furthermore, a liquid level monitor is arranged on the upper part of the operating platform.

[0010] Furthermore, it further includes a protective umbrella; the protective umbrella is arranged on the upper part of the working platform; a solar panel is arranged on the upper surface of the protective umbrella; the solar panel is connected to the liquid level monitor through a wire.

[0011] Furthermore, the mobile base includes a vehicle frame, wheels and auxiliary brackets; the wheels are arranged on both sides of the vehicle frame; the auxiliary brackets are arranged around the vehicle frame and fixedly connected to the upper part of the vehicle frame.

[0012] Furthermore, the auxiliary bracket includes a support pad and a leg; the support pad is arranged at the lower part of the leg and is inserted into the leg.

[0013] The beneficial effects of the present invention are analyzed as follows:

[0014] A multi-functional operation platform for a wellbore liquid level monitor includes a construction platform and a mobile base that can adjust the height in the vertical direction; the construction platform is arranged on the upper part of the mobile base; the construction platform includes a lifting device, cross-type lifting arms arranged on both sides of the lifting device, and an operating platform arranged on the upper part of the lifting device; the lifting device includes a lifting cylinder, a sleeve and a support rod; the lifting cylinder is fixedly connected to the upper part of the mobile base; the sleeve is arranged on the upper part of the lifting cylinder and is connected to the lifting cylinder in a penetrating manner; the support rod is movably connected to the upper part of the sleeve; the support rod is fixedly connected to the operating platform; the cross-type lifting arms are threadedly connected to the side part of the operating platform.

[0015] When construction workers are operating, they can use the lifting device to change the operating height of the construction platform according to the wellhead height of the gas production tree or the oil production tree, so that construction workers can complete the operation requirements without climbing the well wall for high-altitude operations, reducing the construction difficulty of construction workers and improving the operation safety of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the related art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is an enlarged schematic diagram of the lifting device.

[0019] ICON:

[0020] 100 - Construction platform; 110 - Lifting device; 111 - Lifting cylinder; 112 - Sleeve; 113 - Support rod; 114 - Card slot; 115 - Screw hole; 120 - Cross - type lifting arm; 130 - Operating platform; 140 - Guardrail; 150 - Liquid level monitor;

[0021] 200 - Mobile base; 210 - Frame; 220 - Wheels; 230 - Auxiliary support; 231 - Support pad; 232 - Legs;

[0022] 300 - Protection umbrella. Specific implementation mode

[0023] The dynamic liquid level monitoring of the wellbore is a key technology in workover operations. The commonly used echo - type wellbore dynamic liquid level gauge needs to effectively connect the liquid level monitoring instrument to the relevant gate outlet of the wellhead gas production tree or oil production tree to implement effective monitoring. During construction, the equipment is generally placed on the well site ground for open - air monitoring. Since the wellhead heights of the gas production trees or oil production trees in different well sites are different, when it is necessary to monitor the dynamic liquid level in the gas production pipe string in the wellbore, it is often necessary to connect the interface of the liquid level monitor to the side - wing gate of the oil production tree or gas production tree. When the wellhead of the oil production tree or gas production tree is relatively high from the ground, limited by the length of the high - pressure gas transmission pipe of the nitrogen cylinder and the length of the data acquisition cable (in order to ensure data accuracy, it cannot be too long), it is necessary for the operator to climb to the wellhead to connect the gas transmission pipe channel interface of the liquid level monitor to the side - wing gate of the oil production tree or gas production tree to carry out dynamic liquid level monitoring. High - altitude climbing operations pose relatively high risks to personnel. In addition, because the liquid level monitor is far from the ground and lacks a supporting platform frame, the installation and fixation of the liquid level monitor are time - consuming and laborious, and the operation is difficult, with relatively high safety risks.

[0024] In view of this, the present invention provides a multi - functional workbench for a wellbore liquid level monitor, including a construction platform 100 that can adjust its height in the vertical direction and a mobile base 200; the construction platform 100 is arranged on the upper part of the mobile base 200; the construction platform 100 includes a lifting device 110, cross - type lifting arms 120 arranged on both sides of the lifting device 110, and an operating platform 130 arranged on the upper part of the lifting device 110; the lifting device 110 includes a lifting cylinder 111, a sleeve 112, and a support rod 113; the lifting cylinder 111 is fixedly connected to the upper part of the mobile base 200; the sleeve 112 is arranged on the upper part of the lifting cylinder 111 and is connected to the lifting cylinder 111 in a through - connection manner; the support rod 113 is movably connected to the upper part of the sleeve 112; the support rod 113 is fixedly connected to the operating platform 130; the cross - type lifting arms 120 are threadedly connected to the side part of the operating platform 130.

[0025] During the operation, the operator can use the lifting device to change the operation height of the construction platform 100 according to the wellhead height of the gas production tree or oil production tree, so that the operator can complete the operation requirements without climbing the well wall for high-altitude operation, reducing the construction difficulty of the operator and improving the operation safety of the operator.

[0026] The following will combine Figure 1 and Figure 2 to describe in detail the shape and structure of the multifunctional workbench of the wellbore liquid level monitor provided in this embodiment:

[0027] As Figure 1 shown, a multifunctional workbench of a wellbore liquid level monitor includes a construction platform 100 whose height can be adjusted in the vertical direction and a moving base 200; the construction platform 100 is arranged on the upper part of the moving base 200; the construction platform 100 includes a lifting device 110, cross-shaped lifting arms 120 arranged on both sides of the lifting device 110, and an operating platform 130 arranged on the upper part of the lifting device 110; the lifting device 110 includes a lifting cylinder 111, a sleeve 112, and a support rod 113; the lifting cylinder 111 is fixedly connected to the upper part of the moving base 200; the sleeve 112 is arranged on the upper part of the lifting cylinder 111 and is connected to the lifting cylinder 111 in a through manner; the support rod 113 is movably connected to the upper part of the sleeve 112; the support rod 113 is fixedly connected to the operating platform 130; the cross-shaped lifting arms 120 are threadedly connected to the side part of the operating platform 130.

[0028] Specifically, the lifting device 110 is arranged at the upper central position of the moving base 200, and the lifting device 110 is connected to the moving base 200 through a steel plate, and the upper part of the lifting device 110 is welded to the lower part of the construction platform 100 through a steel plate; the cross-shaped lifting arms 120 are arranged on both sides of the lifting device 110 and are respectively connected to the moving base 200 and the construction platform 100 by means of threaded connection; the lifting cylinder 111 is filled with hydraulic oil, and under the action of hydraulic pressure, the support rod 113 can be pushed upwards, and the support rod 113 will drive the construction platform 100 to move upwards to achieve the purpose of height adjustment.

[0029] Regarding the shape and structure of the lifting device 110 as Figure 2 shown:

[0030] The side wall of the sleeve 112 is provided with a card slot 114; the card slot 114 is provided with a screw hole 115.

[0031] Since the single monitoring time is as long as dozens of days or even months, the construction platform 100 needs to be lifted for a long time. Therefore, a protection device needs to be set in the lifting device 110 to prevent the lifting device 110 from failing and causing the construction platform 100 to fall. The specific method is as follows: the support rod 113 is inserted into the sleeve 112, and the side wall of the support rod 113 is exposed through the card slot 114. After the construction platform 100 is adjusted to the appropriate height, the fastening bolt is screwed into the screw hole 115 so that the end of the fastening bolt abuts against the support rod 113.

[0032] As Figure 1 shown, the construction platform 100 further includes a guardrail 140; the guardrail 140 is arranged around the upper part of the operating platform 130; a liquid level monitor 150 is arranged on the upper part of the operating platform 130.

[0033] When the operator enters the upper part of the construction platform 100 for operation, since the height of the Christmas tree or the production tree is relatively high, a guardrail 140 needs to be set to prevent the operator from falling; the liquid level monitor 150 is directly fixedly installed on the upper part of the construction platform 100, and the operator can directly connect the interface of the liquid level monitor 150 with the corresponding interface of the Christmas tree or the production tree. Compared with the prior art, the distance between the liquid level monitor 150 and the Christmas tree or the production tree is relatively closer, and a shorter line can be used for connection, which can improve the accuracy of data.

[0034] As Figure 1 shown, the device further includes a protective umbrella 300; the protective umbrella 300 is arranged on the upper part of the operating platform; a solar panel is arranged on the upper surface of the protective umbrella 300; the solar panel is connected to the liquid level monitor 150 through a wire.

[0035] Specifically, in the existing operation, a specially matched battery pack is generally used to supply power to the liquid level monitor 150 for operation. To ensure the continuity of the liquid level monitoring operation, in the case of continuous monitoring for dozens of days or even months, due to the lack of real-time charging technical means on site and the need to replace the battery pack multiple times in the middle, on the one hand, transporting the battery pack from the base to the well site increases the transportation cost, and on the other hand, preparing multiple sets of spare battery packs to complete the liquid level monitoring increases the equipment cost. When multiple wells are under construction at the same time, the construction progress is often affected due to insufficient spare battery packs. Therefore, a solar panel is arranged on the upper part of the construction platform 100 to continuously charge the liquid level monitor 150, and when encountering bad weather such as rain and snow, the protective umbrella 300 can protect the liquid level monitor 150 and avoid damage to the internal electronic components due to moisture.

[0036] As Figure 1As shown in the figure, the mobile base 200 includes a vehicle frame 210, wheels 220, and auxiliary brackets 230; the wheels 220 are arranged on both sides of the vehicle frame 210; the auxiliary brackets 230 are arranged around the vehicle frame 210 and fixedly connected to the upper part of the vehicle frame 210; the auxiliary brackets 230 include support pads 231 and legs 232; the support pads 231 are arranged at the lower part of the legs 232 and are inserted into the legs 232.

[0037] Specifically, an operating platform is further arranged on the upper part of the mobile base 200 for controlling the lifting of the construction platform 100; the main body of the leg 232 is made by welding stainless steel plates. The upper part of the leg 232 is inserted into the guide rail on the upper part of the vehicle frame 210 that matches it, and then fixedly connected by bolts. This can adjust the support points according to the ground conditions of the operation scenario, making the overall equipment more stable and safe; the support pad 231 and the leg 232 are connected by bolts. When moving this equipment, the support pad 231 can be adjusted upward to make the support pad 231 away from the ground for easy movement of the wheels. When monitoring, the support pad 231 can be adjusted downward to make the support pad 231 in close contact with the ground to improve the stability of the equipment.

[0038] The present invention can achieve the following beneficial effects:

[0039] The height-adjustable construction platform 100 is convenient for operators to construct, solves the problem of climbing operations required for higher gas production trees or oil production tree wells, reduces the construction risk of personnel, and alleviates the operation difficulty; setting a solar panel on the protective umbrella 300 can supply energy to the liquid level monitor 150 during long-term monitoring, and can also protect the electronic components of the liquid level monitor 150 in case of rain, snow or other weather.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-functional working platform for a wellbore liquid level monitor, characterized in that: it includes a construction platform (100) and a mobile base (200) whose height can be adjusted in the vertical direction; the construction platform (100) is arranged on the upper part of the mobile base (200); the construction platform (100) includes a lifting device (110), cross-shaped lifting arms (120) arranged on both sides of the lifting device (110), and an operating platform (130) arranged on the upper part of the lifting device (110); the lifting device (110) includes a lifting cylinder (111), a sleeve (112), and a support rod (113); the lifting cylinder (111) is fixedly connected to the upper part of the mobile base (200); the sleeve (112) is arranged on the upper part of the lifting cylinder (111) and is connected to the lifting cylinder (111) in a through manner; the support rod (113) is movably connected to the upper part of the sleeve (112); the support rod (113) is fixedly connected to the operating platform (130); the cross-shaped lifting arms (120) are threadedly connected to the side part of the operating platform (130).

2. The multi-functional working platform for a wellbore liquid level monitor according to claim 1, characterized in that: a clamping groove (114) is arranged on the side wall of the sleeve (112); a screw hole (115) is arranged in the clamping groove (114).

3. The multi-functional working platform for a wellbore liquid level monitor according to claim 2, characterized in that: the construction platform (100) further includes a guardrail (140); the guardrail (140) is arranged around the upper part of the operating platform (130).

4. The multi-functional working platform for a wellbore liquid level monitor according to claim 3, characterized in that: a liquid level monitor (150) is arranged on the upper part of the operating platform (130).

5. The multi-functional working platform for a wellbore liquid level monitor according to claim 4, characterized in that: it further includes a protective umbrella (300); the protective umbrella (300) is arranged on the upper part of the working platform; a solar panel is arranged on the upper surface of the protective umbrella (300); the solar panel is connected to the liquid level monitor (150) through a wire.

6. The multi-functional working platform for a wellbore liquid level monitor according to claim 5, characterized in that: the mobile base (200) includes a vehicle frame (210), wheels (220), and auxiliary supports (230); the wheels (220) are arranged on both sides of the vehicle frame (210); the auxiliary supports (230) are arranged around the vehicle frame (210) and are fixedly connected to the upper part of the vehicle frame (210).

7. The multi-functional working platform for a wellbore liquid level monitor according to claim 6, characterized in that: the auxiliary support (230) includes a support pad (231) and a support leg (232); the support pad (231) is arranged at the lower part of the support leg (232) and is inserted into the support leg (232).