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Oil-gas mixing transportation device and process applied to gathering and transportation station yard with high gas oil ratio

A technology for gathering and transportation stations and mixed transportation of oil and gas, which is applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc. It can solve the problems of limited gas-carrying capacity and high engineering investment, so as to avoid equipment pumping out and be safe and reliable High performance, realize the effect of oil and gas mixed transportation

Pending Publication Date: 2018-09-14
XIAN CHANGQING TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limited gas-carrying capacity of the oil-gas mixed transportation pump used, it is difficult to meet the requirements of oil-gas mixed transportation when the gas-oil ratio is relatively high. Therefore, in the case of relatively large gas-oil ratio, the method of laying gas-gathering pipelines separately is also adopted at the pressurization point Carry out oil and gas distribution, which will bring higher engineering investment

Method used

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  • Oil-gas mixing transportation device and process applied to gathering and transportation station yard with high gas oil ratio

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, an oil-gas mixed transportation device suitable for high gas-oil ratio gathering and transportation stations includes a closed separation device 2, a first pressure detection device, an air pressure regulating valve 5, a compressor 7, a second pressure detection device, a gas transmission Valve 11, crude oil export pump 13, third pressure detection device and oil delivery valve 17, an input port is provided on one side of the airtight separation device 2, and a gas outlet is provided on the top of the airtight separation device 2, and the gas outlet is sequentially connected to the first The inlet of the pressure detection device, air pressure regulating valve 5, compressor 7, second pressure detection device and gas delivery valve 11, the lower part of the other side of the airtight separation device 2 is provided with a liquid outlet, and the liquid outlet is sequentially connected to the crude oil export pump 13, The third pressure detectio...

Embodiment 2

[0027] On the basis of Example 1, the oil and gas mixed transportation device suitable for high gas-oil ratio gathering and transportation stations also includes an inlet valve 1, a stop valve 6 and a first gate valve 12, and the inlet valve 1 is connected to the airtight separation device 2 for input On the pipeline, the shut-off valve 6 is connected to the pipeline between the air pressure regulating valve 5 and the compressor 7, and the first gate valve 12 is connected to the pipeline between the airtight separation device 2 and the crude oil export pump 13. The inlet valve 1 is used to control the mixed medium of oil and gas from the upstream, the stop valve 6 is used to control the gas closing of the gas pipeline and protect the equipment on the gas pipeline, and the first gate valve 12 is used to control the flow of the separated liquid and protect the crude oil output at the same time. The pump 13 is optimized in process, simple in process, and high in safety and reliabi...

Embodiment 3

[0033] Such as figure 1 As shown, an oil-gas mixed transportation process suitable for high gas-oil ratio gathering and transportation stations, the upstream oil-gas mixed medium enters the airtight separation device 2 through the inlet valve 1 for oil-gas separation, and when the separated gas volume is greater than the standard value, After the gas is measured by the first pressure transmitter 3 and the first local pressure gauge 4, the first local pressure gauge 4 responds to the interlocking air pressure regulating valve 5 to adjust and increase the gas discharge volume, and at the same time start the compressor 7 and turn on the output. Gas valve 11, the gas is output through the shut-off valve 6 and the compressor 7, the pressure is measured by the second local pressure gauge 8 and the second pressure transmitter 9, and then the gas is exported through the first check valve 10 and the gas delivery valve 11; separation The output oil is transferred through the first gate ...

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Abstract

The invention belongs to the technical field of oil-gas mixing transportation, and particularly relates to an oil-gas mixing transportation device and process applied to a gathering and transportationstation yard with high gas oil ratio. The oil-gas mixing transportation device comprises a sealed separating device, a first pressure detection device, an air pressure regulator, a compressor, a second pressure detection device, a gas transmission valve, a crude oil transfer pump, a third pressure detection device and an oil transportation valve; an input hole is formed in one side of the sealedseparating device; a gas outlet is formed in the top of the sealed separating device; the gas outlet is connected with the first pressure detection device, the air pressure regulator, the compressor,the second pressure detection device and the inlet of the gas transmission valve through a pipeline in sequence; a liquid outlet is formed in the lower part of the other side of the sealed separatingdevice, and is connected with the crude oil transfer pump, the third pressure detection device and the oil transportation valve through a pipeline in sequence. The outlets of the gas transmission valve and the oil transportation valve are subjected to outward-outputting through pipeline converging, the requirement of oil-gas mixing transportation when the oil-to-gas ratio is relatively high is met, and the device and the process have the advantages of simple flow, process optimization, high reliability, and high degree of automation.

Description

technical field [0001] The invention belongs to the technical field of oil-gas mixed transportation, and in particular relates to an oil-gas mixed transportation device and process suitable for high gas-oil ratio gathering and transportation stations. Background technique [0002] Changqing Oilfield is a typical ultra / ultra-low permeability reservoir, with poor reservoir properties, strong heterogeneity, developed micro-fractures, high original gas-oil ratio, and some areas with high gas-oil ratio may reach more than 150m3 / t, while For the recovery of associated gas, Changqing Oilfield uses screw pumps for mixed transportation of oil and gas at small stations such as pressurization points, and mainly lays separate gas pipelines for oil and gas distribution at transfer stations and combined stations. [0003] Due to the limited gas-carrying capacity of the oil-gas mixed transportation pump used, it is difficult to meet the requirements of oil-gas mixed transportation when the...

Claims

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Application Information

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IPC IPC(8): F17D1/00F17D3/01
CPCF17D1/005F17D3/01
Inventor 范原搏潘峰王辉杨东宁王晗杜鑫池坤王青薛辉
Owner XIAN CHANGQING TECH ENG
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