CN215979253U

CN215979253U - Power catwalk drilling tool conveying limiting device

Info

Publication number: CN215979253U
Application number: CN202121486033.3U
Authority: CN
Inventors: 王建兵; 张涛; 张兴旺; 董珍书; 荆彤; 潘晓亮; 刘情
Original assignee: Shandong Kerui Oil And Gas Equipment Co ltd
Current assignee: Shandong Kerui Oil And Gas Equipment Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-03-08
Anticipated expiration: 2031-07-01

Abstract

The utility model relates to the technical field of catwalks, in particular to a power catwalk drilling tool conveying limiting device which comprises a pushing trolley arranged on a catwalk, wherein the pushing trolley is driven by a hydraulic winch, a pressure pipeline is communicated between an oil inlet pipeline and an oil outlet pipeline of the hydraulic winch, a throttling stop valve and a limiting valve are communicated on the pressure pipeline, a limiting baffle is connected onto the limiting valve, a limiting rod is connected onto the pushing trolley, and the limiting rod can switch the working state of the limiting valve by stirring the limiting baffle. The utility model has simple structure and convenient operation, and the working state of the limit valve on the hydraulic pipeline is switched by matching the limit rod and the limit baffle, thereby greatly avoiding the phenomenon that the hydraulic winch still continues to operate when an accident happens, meeting the secondary protection safety requirement of a catwalk when a drilling tool is conveyed to a wellhead, better solving the large-stroke working state required by the receiving of the drilling tool and achieving the purpose of safely conveying and receiving the drilling tool.

Description

Power catwalk drilling tool conveying limiting device

Technical Field

The utility model relates to the technical field of catwalks, in particular to a conveying limiting device for a power catwalk drilling tool.

Background

Along with the development of the petroleum industry, the use of the hydraulic power catwalk is more and more popular, and the replacement of the traditional artificial mechanical catwalk becomes a necessary development trend. However, as the automation degree of the power catwalk is improved, the corresponding safety requirements also need to be considered comprehensively. In the use process of the power catwalk, the working error of operators sometimes occurs, or the valve core of the main reversing valve of the drilling tool pushing device is stuck, but the hydraulic motor of the pushing trolley can continue to work at the moment, the pipe is continuously pushed to the wellhead, and the risk of injuring personnel or equipment can exist if the pipe is not stopped in time, so that the potential safety hazard is large.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a conveying limiting device for a power catwalk drilling tool.

In order to achieve the purpose, the utility model provides the following technical scheme: a conveying limiting device for a power catwalk drilling tool comprises a pushing trolley arranged on a catwalk; the pushing trolley is driven by a hydraulic winch; a pressure pipeline is communicated between the oil inlet pipeline and the oil outlet pipeline of the hydraulic winch; the pressure pipeline is communicated with a throttling stop valve and a limiting valve; the limiting valve is connected with a limiting baffle; the pushing trolley is connected with a limiting rod; the limiting rod can shift the limiting baffle plate to switch the working state of the limiting valve.

Furthermore, the pressure pipeline is also communicated with a one-way valve.

Furthermore, a clamping groove is formed in the limiting baffle; the limiting rod can enter and exit from the groove.

Furthermore, the clamping groove is of a U-shaped structure.

Furthermore, the throttle stop valve, the limiting valve and the one-way valve are sequentially arranged.

Compared with the prior art, the utility model has the following beneficial effects: the hydraulic winch is simple in structure and convenient to operate, the working state of the limiting valve on the hydraulic pipeline is switched by arranging the pressure pipeline and matching the limiting rod with the limiting baffle plate, so that the working state of the hydraulic winch is controlled, the phenomenon that the hydraulic winch still continues to run when an accident occurs is greatly avoided, the secondary protection safety requirement of a catwalk when a drilling tool is conveyed to a wellhead can be met, the large-stroke working state required by the drilling tool receiving and taking can be well solved, the purposes of safely conveying and receiving the drilling tool are achieved, and the hydraulic winch is simple in structure and good in economical efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure and a partially enlarged structure of the present invention;

fig. 2 is a schematic diagram of a pipeline structure of the hydraulic winch.

The hydraulic winch comprises a catwalk, a pushing trolley, a hydraulic winch, a pressure pipeline, a throttling stop valve, a limiting valve, a check valve, a limiting baffle, a limiting rod, a clamping groove, a hydraulic motor and an oil tank, wherein the catwalk comprises 1, 2, the pushing trolley, 3, the hydraulic winch, 4, the pressure pipeline, 5, the throttling stop valve, 6, the limiting valve, 7, the check valve, 8, the limiting baffle, 9, the limiting rod, 10, the clamping groove, 11, the hydraulic motor, 12 and the oil tank.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a conveying limiting device for a power catwalk drilling tool, which comprises a pushing trolley 2 arranged on a catwalk 1 and used for conveying the drilling tool, wherein the pushing trolley 2 is driven by a hydraulic winch 3, so that the pushing trolley 2 can reciprocate on the catwalk 1 to continuously convey the drilling tool to a wellhead.

An oil inlet pipeline and an oil return pipeline between an oil tank 12 and a hydraulic motor 11 of the hydraulic winch 3 are communicated with a pressure pipeline 4, and the pressure pipeline 4 is sequentially communicated with a throttling stop valve 5, a limiting valve 6 and a one-way valve 7. The limit valve 6 is connected with a limit baffle 8 which can drive the limit valve 6 to switch. A limiting rod 9 is connected to the pushing trolley 2, and the limiting rod 9 can be in contact with the limiting baffle 8. So that when the pushing trolley 2 moves to the position of the limiting valve 6, the limiting rod 9 on the pushing trolley 2 can stir the limiting baffle 8 to rotate, and further the switching of the working state of the limiting valve 2 is realized.

In order to enable the pushing trolley 2 to smoothly convey the drilling tool to the wellhead, the limiting valve 6 is arranged on one side close to the wellhead.

In the utility model, the limit baffle 8 is in a right-angled triangle structure. As an alternative embodiment, the limit stop may be circular, square, rectangular or other various shapes, and the present invention is not particularly limited thereto.

The limiting baffle 8 is provided with a clamping groove 10, and the limiting rod 9 can enter and exit from the clamping groove 10, so that the limiting rod 9 can smoothly stir the limiting baffle 8. In this embodiment, the slot 10 has a U-shaped structure.

When the gag lever post 9 did not reach the 8 departments of limit baffle, the opening of draw-in groove 10 just was to the direction of gag lever post 9, afterwards, gag lever post 9 reachs 8 departments of limit baffle to in getting into draw-in groove 10, gag lever post 9 continues the motion, stirs limit baffle 8 then and rotates.

In the process that the catwalk 1 conveys the drilling tool to a wellhead, the throttling stop valve 5 is in a full-open state, and the limiting valve 2 is in a closed state, so that the pressure pipeline 4 and the oil outlet pipeline cannot be communicated; when the pushing trolley 2 reaches the position of the limit valve 6, the limit rod 9 fixed on the pushing trolley 2 is in contact with the limit baffle 8, the limit baffle 8 is pushed to rotate, so that the working state of the limit valve 6 is switched, the pressure pipeline 4 is communicated with the oil return pipeline, the hydraulic pressure of oil is reduced, the brake system of the hydraulic winch 3 starts to brake due to the reduction of the pressure, the hydraulic winch 3 is forced to stop rotating, the drilling tool stops conveying the pipe to the wellhead, and the safety of the drilling tool conveying the drilling tool to the wellhead is guaranteed.

In the process of taking a drilling tool from the catwalk 1, the throttling stop valve 5 is in a completely closed state. After the receiving is finished, the pushing trolley 2 returns along the original path, and when the pushing trolley 2 reaches the limiting valve 6, the limiting rod 9 fixed on the pushing trolley 2 is in contact with the limiting baffle 8 and pushes the limiting baffle 8 to rotate so as to switch the working state of the limiting valve 6. But the throttling stop valve 5 is completely closed, so that the pressure pipeline 4 of the hydraulic winch 3 for conveying the drilling tool cannot be communicated with the oil return pipeline; and because the one-way circulation of the one-way valve 7 can keep the pressure of the pipeline all the time, the hydraulic winch 3 can be ensured to continue rotating, and the pushing trolley 2 is driven to cross the limit position to continue completing the work of receiving and taking the pipe.

The working principle is as follows: according to the conveying limiting device for the power catwalk drilling tool, when the drilling tool is conveyed to a wellhead, the throttle stop valve 5 is switched to be in an open state, the hydraulic winch 3 is started, the hydraulic winch 3 continuously drives the pushing trolley 2 to move towards the wellhead, when the hydraulic winch 3 moves to the position of the limiting valve 6, the limiting rod 9 enters the clamping groove 10, the limiting rod 9 stirs the limiting baffle 8 to rotate along with the continuous movement of the pushing trolley 2, the limiting valve 6 is further opened, the pressure pipeline 4 is communicated with the oil return pipeline, the oil pressure of the hydraulic motor 11 is reduced, the hydraulic winch 3 is forced to stop moving, and therefore when the drilling tool reaches the position near the wellhead, the hydraulic winch 3 stops moving automatically, and safety is greatly improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a stop device is carried to power catwalk drilling tool which characterized in that: comprises a pushing trolley arranged on a catwalk; the pushing trolley is driven by a hydraulic winch; a pressure pipeline is communicated between the oil inlet pipeline and the oil outlet pipeline of the hydraulic winch; the pressure pipeline is communicated with a throttling stop valve and a limiting valve; the limiting valve is connected with a limiting baffle; the pushing trolley is connected with a limiting rod; the limiting rod can shift the limiting baffle plate to switch the working state of the limiting valve.

2. The power catwalk drilling tool conveying stop device of claim 1, wherein: the pressure pipeline is also communicated with a one-way valve.

3. The power catwalk drilling tool conveying stop device of claim 1, wherein: the limiting baffle is provided with a clamping groove; the limiting rod can enter and exit from the groove.

4. The power catwalk drilling tool conveying stop device of claim 3, wherein: the clamping groove is of a U-shaped structure.

5. The power catwalk drilling tool conveying stop device of claim 2, wherein: the throttling stop valve, the limiting valve and the one-way valve are arranged in sequence.

6. The power catwalk drilling tool conveying stop device of claim 1, wherein: the limiting valve is positioned on one side close to the wellhead.