CN204941504U - A kind of erosion resistance high pressure combination manifold apparatus - Google Patents

Abstract

The utility model provides an erosion-resistant high-pressure combined manifold device. The device is equipped with a discharge plug seat and a discharge plug on the Y-shaped four-way joint, and connects with two main pipe plug valves with an elbow. The four-way joint is connected with No. 2 three-dimensional four-way joint, and No. 1 three-dimensional four-way joint is connected with No. 2 three-dimensional four-way joint with swivel elbow. The T-shaped three-way joint and the three-dimensional four-way joint are equipped with branch pipes and branch pipe cocks, and the other end of the branch pipe cocks is equipped with a suction plug seat and a suction plug. The erosion-resistant high-pressure combined manifold branch pipeline of the device is improved to 90° with the main pipeline, and the erosion and wear of the pipe fittings by the fracturing fluid is the least. By installing a pressure sensor on top, the whole structure is more compact and the service life of the high-pressure manifold is improved.

Description

An erosion-resistant high-pressure combined manifold device

technical field

The utility model relates to the field of petroleum auxiliary equipment, in particular to an erosion-resistant high-pressure combined manifold device.

Background technique

A fracturing manifold truck is usually equipped in an oil and gas well fracturing operation unit. The high-pressure combined manifold on it is used to connect the high-pressure outlet of the fracturing pump truck. During construction, the fracturing pump truck will be pressurized. The fracturing fluid is collected and injected into the bottom of the well.

The ring-shaped high-pressure manifold device of the existing fracturing manifold truck consists of a manifold and a straight pipe to form a main pipeline, and the outside of each manifold is connected to a cock valve as a control switch to form a branch pipeline. In this kind of annular high-pressure manifold device, there is an included angle of 30-45 degrees between the branch pipeline and the main pipeline. The distance between the branch pipelines is too small, which is inconvenient to connect with the fracturing pump truck. And with the development of unconventional oil and gas, the rise of large-scale fracturing construction, these high-pressure pipe fittings usually have to withstand the pressure of up to 100MPa or more, the erosion of high-speed moving solid particles, the corrosion of acidizing fluid, and the twists and turns of the manifold during the fracturing construction process. The resulting tensile and compressive stress, the working conditions are extremely harsh, prone to stress corrosion, acid corrosion and erosion, etc., which directly affects the service life of the existing annular high-pressure manifold device, and is also likely to cause production accidents.

Contents of the invention

The purpose of the utility model is to provide an erosion-resistant high-pressure combined manifold device which overcomes the problems of severe pipe wall erosion and too small distance between branch pipes in the existing ring-shaped high-pressure manifold device.

To achieve the above object, the technical solution of the utility model is:

An erosion-resistant high-pressure combined manifold device, including elbows, branch pipe plug valves, T-shaped three-way joints, main pipes, No. 1 three-dimensional four-way joints, swivel elbows, No. 2 three-dimensional four-way joints, pressure sensors, branch pipes, Suction plug, suction plug seat, Y-shaped four-way joint, main pipe plug valve, discharge plug and discharge plug seat, the device is equipped with a discharge plug seat and a discharge plug seat at the straight end of the Y-shaped four-way joint , one of the Y ends is connected to the main pipe plug valve with an elbow, and the other is directly connected to the main pipe plug valve. One end is respectively connected with the main pipe, and the two main pipes are respectively equipped with 1-2 T-shaped three-way joints, and the tail ends of the two main pipes are respectively equipped with a No. 1 three-dimensional four-way joint and a No. 2 three-dimensional four-way joint. No. 1 three-dimensional four-way joint and No. 2 three-dimensional four-way joint are connected with swivel elbows.

The straight ends of the T-shaped three-way joint, the No. 1 three-dimensional four-way joint and the No. 2 three-dimensional four-way joint are equipped with a branch pipe, and the other end of the branch pipe is equipped with a branch pipe cock valve, and the other end of the branch pipe cock valve is equipped with a suction plug. seat and suction plug.

Pressure sensors are respectively installed on the fourth outlets of the No. 1 three-dimensional four-way joint, the No. 2 three-dimensional four-way joint and the Y-shaped four-way joint.

The positive effect of the utility model is:

1. The branch pipeline of the erosion-resistant high-pressure combined manifold of the device is improved to 90° with the main pipeline, and the fracturing fluid has the least erosion and wear on the pipe fittings, which improves the service life of the high-pressure manifold;

2. The erosion-resistant high-pressure combined manifold adopts a three-dimensional T-shaped cross and a three-dimensional Y-shaped cross to install a pressure sensor to make the whole structure more compact;

3. The distance between the branches of the erosion-resistant high-pressure combined manifold reaches 1200mm, which makes the connection between the suction port and the fracturing pump truck more convenient.

Description of drawings

Figure 1. Schematic diagram of the structure of the erosion-resistant high-pressure combined manifold device;

Figure 2. Schematic diagram of the full-section structure of the three-dimensional four-way joint.

detailed description

Below in conjunction with accompanying drawing 1 and 2 further illustrate the specific embodiment of the present utility model.

Referring to Figures 1 and 2, before operation, first remove the discharge plug 15 and discharge plug seat 16 on the Y-shaped four-way joint 12, and connect the Y-shaped four-way joint 12 to the wellhead of the oil and gas well through a high-pressure straight pipe According to the number of fracturing pump trucks at the construction site and the output of fracturing fluid, determine how many branch pipe cocks 2 assembled on the branch pipe 9 are connected to the outlet of the fracturing pump truck. Suction plug 10 and suction plug seat 11 on the branch pipe cock 2, connect the branch pipe cock 2, branch 9 and T-shaped tee joint 3 to the outlet of the fracturing pump truck, and remove the No. The suction plug 10 and the suction plug seat 11 installed in the upper branch pipe plug valve 2 of the through joint 5 and the No. 2 three-dimensional four-way joint 7 are connected with the discharge port of the fracturing pump truck, and then the connected T-shaped three-way plug valve is opened. 3, the No. 1 three-dimensional four-way joint 5 and the branch pipe cock valve 2 on the No. 2 three-dimensional four-way joint 7, and simultaneously open the main pipe cock 14 connected to the main pipe 4, and the fracturing fluid is discharged from the fracturing pump truck. The outlet consists of branch pipe cock valve 2, branch pipe 9, T-shaped three-way joint 3, No. 1 three-dimensional four-way joint 5 and No. 2 three-dimensional four-way joint 7 through swivel elbow 6, main pipe 4, main pipe cock 14 and elbow 1, It is injected into the bottom of the well from the Y-shaped four-way joint 12 through a high-pressure straight pipe. The pressure sensor 8 mounted on the fourth outlet 13 of the No. 1 three-dimensional four-way joint 5, the No. 2 three-dimensional four-way joint 7 and the Y-shaped four-way joint 12 is used to monitor the pressure of the fracturing fluid in the manifold device.

When the flow rate of the fracturing fluid discharged from the outlet of the fracturing pump truck is large, remove the elbow 1 and the Y-shaped four-way joint 12 connected with the main pipe plug valve 14, and connect the two main pipe plug valves 14 directly to the oil and gas well. The high-pressure straight pipe at the wellhead is connected to form a double pipe, and the fracturing fluid is injected into the bottom of the well through two high-pressure straight pipes.

Claims (3)

1. an erosion resistance high pressure combination manifold apparatus, comprises elbow (1), arm plug valve (2), T-shaped tee junction (3), supervisor (4), No. 1 three-dimensional four-way connection (5), movable elbow (6), No. 2 three-dimensional four-way connections (7), pressure sensor (8), arm (9), suck plug (10), suck plug seat (11), Y type four-way connection (12), supervisor's plug valve (14), discharge plug (15) and discharge plug seat (16), it is characterized in that: described device is equipped with at the straight end of Y type four-way connection (12) discharges plug seat (16) and discharges plug (15), Y holds one of them to be connected with supervisor's plug valve (14) with elbow (1), another direct attaching supervisor's plug valve (14), the other end each attaching T-shaped tee junction (3) respectively of two supervisor's plug valves (14), the other end of T-shaped tee junction (3) is connected with supervisor (4) respectively, on two supervisors (4), each attaching has 1-2 T-shaped tee junction (3) respectively, the tail end of two supervisors (4) respectively attaching has No. 1 three-dimensional four-way connection (5) and No. 2 three-dimensional four-way connections (7), and No. 1 three-dimensional four-way connection (5) is connected with movable elbow (6) with No. 2 three-dimensional four-way connections (7).

2. erosion resistance high pressure combination manifold apparatus according to claim 1, it is characterized in that: the straight end attaching of described T-shaped tee junction (3), No. 1 three-dimensional four-way connection (5) and No. 2 three-dimensional four-way connections (7) has arm (9), the other end of arm (9) is equipped with arm plug valve (2), and the other end of arm plug valve (2) is equipped with and sucks plug seat (11) and suck plug (10).

3. erosion resistance high pressure according to claim 1 combination manifold apparatus, is characterized in that: described No. 1 three-dimensional four-way connection (5), the 4th the exporting on (13) pressure sensor (8) is housed respectively of No. 2 three-dimensional four-way connections (7) and Y type four-way connection (12).