CN-121993738-A - Gas-liquid mixed transportation integrated device and process thereof

CN121993738ACN 121993738 ACN121993738 ACN 121993738ACN-121993738-A

Abstract

The invention belongs to the technical field of gas-liquid mixing and conveying integration, and discloses a gas-liquid mixing and conveying integration device and a process thereof, wherein the gas-liquid mixing and conveying integration device comprises a liquid storage tank, a first washing tank, a second washing tank, a first compressor and a second compressor, an inlet of the liquid storage tank is connected with a mixed liquid inlet, an outlet of the liquid storage tank is respectively connected with inlets of the first washing tank and the second washing tank through pipelines, the first compressor is arranged on a pipeline between a gas outlet at the top of the first washing tank and a gas inlet at the bottom of the second washing tank, the invention improves the efficiency of gas-liquid mixed transportation by matching the two groups of washing tanks and the compressors, and simultaneously can automatically reversely liquid in the liquid storage tank and redistribute the liquid, thereby improving the safety, efficiency and yield of gas-liquid mixed transportation.

Inventors

JI XIAOKE
LIU PENG
HE SHUNAN
LI MAO
CHEN XIAOGANG
LI YAO
ZHAO XINSHENG
MAO YONG
YANG JINGCHEN
LI GUOMING

Assignees

中国石油天然气股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (10)

1. The utility model provides a gas-liquid mixed transportation integrated device, sets up between mixing liquid entry and mixing liquid export, its characterized in that includes liquid storage pot (2), first wash tank (3), second wash tank (4), first compressor (5), second compressor (6), the entry and the mixing liquid entry linkage of liquid storage pot (2), the export of liquid storage pot (2) respectively pipe connection first wash tank (3) with the entry of second wash tank (4), set up on the pipeline between the gas outlet at first wash tank (3) top and the gas inlet at second wash tank (4) bottom first compressor (5), set up on the pipeline between the gas outlet at second wash tank (4) top with the gas inlet at first wash tank (3) bottom second wash tank (4) bottom all is connected the mixing liquid export.
2. The gas-liquid mixing and conveying integrated device according to claim 1, wherein a first pressure regulating valve (17) is installed at the top end of the first washing tank (3), a second pressure regulating valve (18) is installed at the top end of the second washing tank (4), and the first pressure regulating valve (17) and the second pressure regulating valve (18) are connected with the upper end of the liquid storage tank (2) after being connected through external pipelines.
3. The gas-liquid mixing and conveying integrated device according to claim 1, wherein a first air inlet valve (11) is installed on a pipeline connected with the first washing tank (3) and the first compressor (5), and a first air outlet valve (12) is installed on a pipeline connected with the first compressor (5) and the second washing tank (4).
4. A gas-liquid mixing and conveying integrated device according to claim 3, characterized in that a second air inlet valve (13) is arranged on a pipeline connected with the second washing tank (4) and the second compressor (6), and a second air outlet valve (14) is arranged on a pipeline connected with the second compressor (6) and the first washing tank (3).
5. The gas-liquid mixing and conveying integrated device according to claim 4, wherein liquid level sensors are respectively arranged in the first washing tank (3) and the second washing tank (4).
6. The gas-liquid mixing and conveying integrated device according to claim 1, wherein a first liquid inlet valve (9) is arranged on a pipeline connected with the liquid storage tank (2) and the first washing tank (3), and a second liquid inlet valve (10) is arranged on a pipeline connected with the liquid storage tank (2) and the second washing tank (4).
7. The gas-liquid mixing and conveying integrated device according to claim 6, wherein a first liquid discharge valve (15) is installed on a pipeline connected with the mixed liquid outlet of the first washing tank (3), and a second liquid discharge valve (16) is installed on a pipeline connected with the mixed liquid outlet of the second washing tank (4).
8. The gas-liquid mixing and transporting integrated device according to claim 1, further comprising a filter (1), wherein the filter (1) is arranged between the inlet of the liquid storage tank (2) and the mixing inlet.
9. A gas-liquid mixing and transporting integration process using the gas-liquid mixing and transporting integration device according to claim 1, characterized by comprising the steps of: S1, building a gas-liquid mixing and conveying station; s2, establishing a computer control system in the constructed gas-liquid mixing and conveying station; s3, introducing pretreated input gas field water into a liquid storage tank (2); S4, respectively conveying the liquid in the liquid storage tank (2) into the first washing tank (3) and the second washing tank (4) for gas-liquid separation; S5, compressing the gas in the first washing tank (3) and then sending the compressed gas into the second washing tank (4), compressing the gas in the second washing tank (4) and then sending the compressed gas into the first washing tank (3); S6, when the hydraulic pressure in the first washing tank (3) and the second washing tank (4) exceeds the standard, the liquid is reversely reduced in pressure, and then the liquid is redistributed in the first washing tank (3) and the second washing tank (4); and S7, repeating the steps S3-S6, and continuously carrying out gas-liquid mixed transportation.
10. The integrated gas-liquid mixing process according to claim 9, wherein the computer control system is used for centralized monitoring, controlling and scheduling management of the production process of the gas-liquid mixing station in step S2.

Description

Gas-liquid mixed transportation integrated device and process thereof Technical Field The invention belongs to the technical field of gas-liquid mixing and conveying integration, and particularly relates to a gas-liquid mixing and conveying integration device and a process thereof. Background With the development of oil and gas fields and the development of oil and gas gathering and transportation matching technology, the oil and gas and water multiphase mixing transportation technology is increasingly widely applied. The method is the most effective way for long-distance and high-efficiency transportation of oil gas at present through pipeline mixing transportation after pressurizing low-pressure oil gas medium extracted from a wellhead, and has great social and economic benefits. In the prior art, the oil-gas-water multiphase mixed transportation technology pressurizes the separated gas through a compressor, the pressurized high-pressure gas medium is discharged into a liquid storage tank and then discharged into a mixed transportation pipe network, the discharge capacity of the compressor is low, the on-site actual demand cannot be met, the efficiency is low, meanwhile, the distribution and flow characteristics of various components such as oil, gas and water are very complex, the stability is poor when the pressurization transportation is carried out, the condition of overlarge pressure in the tank possibly occurs, and even safety accidents possibly occur. Disclosure of Invention The invention aims to provide a gas-liquid mixing and conveying integrated device and a process thereof, which can perform continuous gas-liquid mixing and conveying and improve the gas-liquid mixing and conveying efficiency. The technical scheme adopted by the invention is that the gas-liquid mixing and conveying integrated device is arranged between a liquid mixing inlet and a liquid mixing outlet and comprises a liquid storage tank, a first washing tank, a second washing tank, a first compressor and a second compressor, wherein the inlet of the liquid storage tank is connected with the liquid mixing inlet, the outlet of the liquid storage tank is respectively connected with the inlets of the first washing tank and the second washing tank through pipelines, the first compressor is arranged on a pipeline between a gas outlet at the top of the first washing tank and a gas inlet at the bottom of the second washing tank, the second compressor is arranged on a pipeline between a gas outlet at the top of the second washing tank and a gas inlet at the bottom of the first washing tank, and the bottoms of the first washing tank and the second washing tank are both connected with the liquid mixing outlet. Preferably, a first pressure regulating valve is installed at the top end of the first washing tank, a second pressure regulating valve is installed at the top end of the second washing tank, and the first pressure regulating valve and the second pressure regulating valve are connected with the upper end of the liquid storage tank after being connected through an external pipeline. Preferably, a first air inlet valve is installed on a pipeline connected with the first washing tank and the first compressor, and a first air outlet valve is installed on a pipeline connected with the first compressor and the second washing tank. Preferably, a second air inlet valve is installed on a pipeline connected with the second washing tank and the second compressor, and a second air outlet valve is installed on a pipeline connected with the second compressor and the first washing tank. Preferably, the first washing tank and the second washing tank are respectively provided with a liquid level sensor. Preferably, a first liquid inlet valve is arranged on a pipeline connected with the liquid storage tank and the first washing tank, and a second liquid inlet valve is arranged on a pipeline connected with the liquid storage tank and the second washing tank. Preferably, a first liquid discharge valve is arranged on a pipeline connected with the mixed liquid outlet of the first washing tank, and a second liquid discharge valve is arranged on a pipeline connected with the mixed liquid outlet of the second washing tank. Preferably, the filter is arranged between the inlet of the liquid storage tank and the mixed liquid inlet. The invention also provides a gas-liquid mixing and conveying integrated process, which comprises the following steps: S1, building a gas-liquid mixing and conveying station; s2, establishing a computer control system in the constructed gas-liquid mixing and conveying station; s3, introducing pretreated input gas field water into a liquid storage tank; s4, respectively conveying the liquid in the liquid storage tank into a first washing tank and a second washing tank for gas-liquid separation; S5, compressing the gas in the first washing tank, then sending the compressed gas into the second washing tank, and sending the compressed gas