Multifunctional large aperture oil (gas) extraction well head equipment

A wellhead device and large-diameter technology, which is applied in the direction of wellbore/well valve device, earthwork drilling, wellbore/well components, etc., can solve the problems of high pressure, small diameter, low working efficiency, etc., and achieve pressure reduction , Improve work efficiency, high work efficiency effect

Inactive Publication Date: 2016-01-27
李玉俊
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AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of small diameter, high pressure and low working efficiency of current oil (gas) wellhead devices, the present invention proposes a multifunctional large-diameter oil (gas) wellhead device. By ad...

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  • Multifunctional large aperture oil (gas) extraction well head equipment

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Embodiment Construction

[0008] as attached figure 1 As shown, the upper end of the oil pipe head four-way 1 is connected to the lower end of the hydraulic gate valve 2, the upper end of the hydraulic gate valve 2 is connected to the lower end of the manual gate valve 3, the upper end of the manual gate valve 3 is connected to the lower end of the six-way 4, and the six-way The upper link in 4 is connected with the lower link in the small four-way 5. The diameter matching inside the device is 130mm.

[0009] When it is necessary to inject water or fracturing agent downhole, four fracturing machines can be respectively connected to the front, rear, left and right four inlet passages in the six-way 4 to inject water or fracturing agent downhole simultaneously. Especially when injecting water into the downhole, the existing wellhead device usually needs several days of water injection time, but it only takes a few hours to fill up the required water in the downhole by adopting the present invention.

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Abstract

The invention relates to multifunctional large aperture oil (gas) extraction well head equipment, and belongs to the petroleum machinery design manufacture technical field; the multifunctional large aperture oil (gas) extraction well head equipment comprises a tubing head cross joint, a liquid operated gate valve, a hand-operated gate valve, a six-port, and a small cross joint; the six-port is connected between the top of the hand-operated gate valve and a lower port of the small cross joint. The six-port is arranged between the hand-operated gate valve and the small cross joint so as to increase inlet paths of the well head equipment, thus creating conditions for selecting a matching large aperture main drift diameter; under the conditions, four cracking machine can be connected through the front, rear, left and right paths of the six-port; water and agents can be injected underground, thus improving work efficiency; the caliber can be enlarged so as to effectively reduce the pressure in the well head equipment, and thus improving safety factor of the equipment; the multifunctional large aperture oil (gas) extraction well head equipment is high in work efficiency, and large in safety factor.

Description

technical field [0001] The invention relates to a multifunctional large-diameter oil (gas) production wellhead device, which belongs to the technical field of petroleum machinery design and manufacture. Background technique [0002] Oil (gas) wellhead device is an important equipment for oil (gas) production, and its performance is related to whether the oil (gas) well can produce safely and efficiently. The wellhead device consists of three parts: casing head, tubing head and Christmas tree. It is mainly used to monitor the pressure of the production wellhead and adjust the flow rate of oil (gas) and water wells. It can also be used for various measures such as acid fracturing, water injection, and testing. . At present, domestic oil production wellhead devices generally adopt a configuration with a diameter of 78mm or less. This configuration has a small flow area. When it is necessary to inject water or fracturing agents into oil (gas) wells, only one fracturing vehicle ...

Claims

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Application Information

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IPC IPC(8): E21B34/02
Inventor 不公告发明人
Owner 李玉俊
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