Single-screw pump low-pressure natural gas or coal-bed gas pressurizing system and method

A single-screw pump and pressurization system technology, which is applied in pipeline systems, gas fuel, gas/liquid distribution and storage, etc. The effect of long service life and low operating costs

Pending Publication Date: 2018-02-13
四川凯创机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, natural gas compressor units are usually used to pressurize natural gas. However, since the produced natural gas contains water and condensate oil, a device for separating and treating water and condensate oil needs to be matched with the natural gas compressor. Natural gas booster equipment is bulky, and the cost of booster operation is high

Method used

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  • Single-screw pump low-pressure natural gas or coal-bed gas pressurizing system and method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing.

[0022] like figure 1 As shown, the single-screw pump low-pressure natural gas or coalbed methane pressurized system of the present invention includes a low-pressure gas source inlet pipe 1 and a high-pressure gas discharge pipe 2, and a single-screw pump 3, a lubricating pump 4, and 1# separation storage tank 5 and 2# Separation storage tank 6, low-pressure air source inlet pipe 1 is connected to three-way, a branch of the three-way is provided with 2# cut-off valve V-2, the outlet of 2# cut-off valve V-2 is connected to the inlet of jet-suction mixer 7, and the jet-suction mixer The outlet of the suction mixer 7 is connected to the inlet of the single screw pump 3 .

[0023] The outlet of the single screw pump 3 is connected to the tee, and the two branch pipes of the tee are respectively provided with valves and connected to the 1# separation storage tank 5 and the 2# se...

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Abstract

The invention discloses a single-screw pump low-pressure natural gas or coal-bed methane pressurization system and method, which relate to the technical field of petroleum and natural gas. Systems and methods for processing. The technical scheme adopted in the present invention is: low-pressure natural gas or coalbed methane containing water and condensate oil is sprayed and mixed with mixed-transported lubricating pressurized liquid, then pressurized to at least 3MPa by a single screw pump, and then tangentially enters the separation reserve The tank is subjected to cyclone separation, and the separated gas is input into the gas grid, and the separated mixed liquid containing mixed lubricating and pressurized liquid or newly supplemented mixed lubricated and pressurized liquid passes through the lubricating pump and the aforementioned low-pressure natural gas containing water and condensate oil Or coal bed methane injection and suction mixing. The system has the advantages of compact structure, reliable operation, long service life, and low operating cost; this method does not require pre-separation treatment of natural gas or coalbed methane containing water and condensate oil to achieve mixed pressurization.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas, in particular to a single-screw pump low-pressure natural gas or coal bed gas pressurization system and method. Background technique [0002] Natural gas or coalbed methane is extracted from the ground, and as it is continuously extracted, the pressure of the natural gas or coalbed methane will decrease. When the pressure is lower than 0.3MPa, it is necessary to pressurize the natural gas or coalbed methane at the wellhead so that the produced natural gas or coalbed methane has enough power to be transported to the gathering station. At present, natural gas compressor units are usually used to pressurize natural gas. However, since the produced natural gas contains water and condensate oil, a device for separating and treating water and condensate oil needs to be matched with the natural gas compressor. Natural gas booster equipment is bulky, and the cost of booster operation i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D3/01F17D3/14C10L3/10
CPCF17D3/01C10L3/101C10L3/106F17D3/14
Inventor 杨凯张泉
Owner 四川凯创机电设备有限公司
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