CN204532247U - Adjustment drive check valve - Google Patents

Abstract

The utility model provides an accent and drive single current valve, it includes: one end of the high-pressure pipeline is connected with a union, and the other end of the high-pressure pipeline is connected with a clamp head; the check valve comprises a valve body, the valve body is connected with the high-pressure pipeline, the upper end of the valve body is connected with a valve cover, and a valve core is connected in the valve body. The utility model discloses an it drives single current valve to transfer for the oil field is injected into the medicament and is transferred and drive the technological measure, prevents that the safety of backward flow assurance technological measure goes on.

Description

Adjustment drive check valve

technical field

The utility model relates to a single flow valve, in particular to a control and drive single flow valve used in the field of oil production engineering technology.

Background technique

At present, in the oil field injection control and displacement process, it is necessary to use a check valve to guide the flow of the injection process. Conventional check valves include ball seat check valves and baffle check valves, which cut off the normal process flow and turn the single The flow valve is welded to the fixed pipeline, and then connected to the outlet of the control and drive pump to prevent backflow, but the conventional check valve has the following problems:

1) The two ends of the conventional check valve are welded to the fixed pipeline, which requires hot-fire welding to transform the process, which is likely to cause wellhead fire accidents;

2) The welding connection method increases the safety risk;

3) The replacement workload is heavy, requiring the cooperation of multiple people, increasing the installation and removal process;

4) Consuming resources such as pipes and electricity;

5) High-pressure wells increase complex processes such as high-pressure welding joint flaw detection, which affects production efficiency.

Therefore, it is necessary to provide a novel check valve to overcome the above defects.

Utility model content

The purpose of the utility model is to provide a control and drive single-flow valve, which is used in oilfield injection agent control and drive process measures to prevent backflow and ensure the safety of process measures.

Above-mentioned purpose of the utility model can adopt following technical scheme to realize:

The utility model provides a control and drive single flow valve, and the control and drive single flow valve includes:

A high-pressure pipeline, one end of which is connected with a union, and the other end of which is connected with a clamp head;

The check valve includes a valve body, the valve body is connected to the high-pressure pipeline, a valve cover is connected to the upper end of the valve body, and a valve core is connected to the valve body.

In a preferred embodiment, the high-pressure pipeline has a liquid channel, the valve body has a valve cavity, the valve cavity communicates with the liquid channel, and the valve core is openably and closably arranged in the valve cavity .

In a preferred embodiment, the valve body, the high-pressure pipeline and the clamp head are integrally formed.

In a preferred embodiment, the clamp head is connected to another clamp head, and a spherical steel ring is arranged between the two clamp heads.

In a preferred embodiment, slips are respectively connected to the upper ends and lower ends of the two clamp heads.

The characteristics and advantages of the control and drive single flow valve of the utility model are: the control and drive single flow valve is connected with a union and a slip, and the operation is simple, it breaks through the conventional welding type, and has the characteristics of mobility and easy installation ; The valve body, high-pressure pipeline and clamp head of the control-drive check valve are integrally formed, without welding seams, with good safety performance, reducing welding flaw detection procedures, reducing material consumption, and improving production efficiency. In addition, the control-drive single-flow valve is easy to disassemble, shortens working hours, facilitates process connection, is reusable, and is convenient for storage.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a cross-sectional view of the control-drive check valve of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the utility model provides a control and drive check valve, which includes a high-pressure pipeline 1 and a check valve 2, wherein: one end of the high-pressure pipeline 1 is connected with a union 11, and the other end is connected with a clamp head 12. The check valve 2 includes a valve body 21 connected to the high-pressure pipeline 1 , a valve cover 22 connected to the upper end of the valve body 21 , and a valve core 23 connected inside the valve body 21 .

Specifically, the high-pressure pipeline 1 is generally in the shape of a cylindrical tube, with a liquid passage 13 inside, and one end of the high-pressure pipeline 1 is threadedly connected with a union 11, and the union 11 is used to connect with the hammer union joint 3, and the hammer union joint The 3rd is the water hose connector on the control and drive pump, which adopts a spherical seal with the control and drive pump, and is connected together by hammering threads. The other end of the high-pressure pipeline 1 is connected with a clamp head 12. In this embodiment, the clamp head 12 is integrally formed on the high-pressure pipeline 1. The clamp head 12 is connected with another clamp head 4. The other clamp head The head 4 is the clamp head that comes with the wellhead pipeline. There is a spherical steel ring 41 between the clamp head 12 and the clamp head 4. The spherical steel ring 41 has a through hole 411. The spherical steel ring 411 plays a sealing role. Its through hole 411 communicates with the liquid channel 13 of the high pressure pipeline 1 . After the hoop head 12 and the hoop head 4 are buckled, the upper end and the lower end of the hoop head 12 and the hoop head 4 are respectively clamped by a slip 42 and fixed by screws.

The check valve 2 includes a valve body 21, which is integrally formed with the high-pressure pipeline 1. The upper end of the valve body 21 is connected with a valve cover 22, and a valve core 23 is arranged inside the valve body 21, and the valve core 23 is movably connected to the valve body. On the body 21, a valve cavity 211 is formed in the valve body 21, and the valve cavity 211 is connected with the liquid passage 13 of the high-pressure pipeline 1, and the valve core 23 can open and close in the valve cavity 211, thereby realizing opening or closing the high-pressure pipeline 1 for the purpose of the liquid channel 13 .

According to the construction plan, the hammer union joint 3 of the control and drive check valve is tightened, connected to the outlet of the control and drive pump, the slip 42 is connected to the fixed spherical steel ring 41, and the clamp of the control and drive check valve and the wellhead pipeline is clamped tightly. Clamp head 12 and clamp head 4. At this time, the process flow of the injection pipeline is connected. A pressure gauge needs to be installed at the wellhead to observe the pressure change in real time; Open and adjust the spool 23 of the single flow valve to inject fluids such as medicaments to be injected into the wellbore. When the pump is suddenly stopped or the pressure is high and backflows, the spool 23 will fall under the action of gravity to close the liquid channel 13 of the high-pressure pipeline 1, preventing Backflow; when the liquid injection measures are completed, according to the operation process required by the plan, remove the hammer union joint 3 and slip 42 to disassemble the control and drive check valve.

The control and drive single flow valve of the utility model is connected by union 11 and slip 42, which is easy to operate, breaks through the conventional welding type, and has the characteristics of mobility and easy installation; the valve of the control and drive single flow valve The body 21, the high-pressure pipeline 1 and the clamp head 12 are integrally formed, without welding seams, with good safety performance, reducing welding flaw detection procedures, reducing material consumption, and improving production efficiency. All parts of the control and drive single flow valve are made of high-pressure materials, which can be used in wells with different pressures, and are more adaptable to wells whose pressure changes cannot be determined. In addition, the control-drive single-flow valve is easy to disassemble, shortens working hours, facilitates process connection, is reusable, and is convenient for storage.

The above are only a few embodiments of the present utility model, and those skilled in the art can make various changes or modifications to the embodiments of the present utility model according to the contents disclosed in the application documents without departing from the spirit and scope of the present utility model.

Claims (5)

1. a transfer drive ball-and-seat, is characterized in that, described transfer drive ball-and-seat comprises:

High pressure line, its one end is connected with union, and its other end is connected with hoop;

Ball-and-seat, it comprises valve body, and described valve body is connected with described high pressure line, and the upper end of described valve body is connected with valve gap, is connected with spool in described valve body.

2. transfer drive ball-and-seat as claimed in claim 1, it is characterized in that, described high pressure line has fluid passage, and described valve body has valve pocket, and described valve pocket is connected with described fluid passage, and described spool is arranged in described valve pocket opening or closing.

3. transfer drive ball-and-seat as claimed in claim 1, it is characterized in that, described valve body, described high pressure line and described hoop are one-body molded.

4. transfer drive ball-and-seat as claimed in claim 1, it is characterized in that, described hoop is connected with another hoop, is provided with spherical steel ring between two described hoops.

5. transfer drive ball-and-seat as claimed in claim 4, it is characterized in that, the top and bottom of two described hoops are connected to slips.