CN216816645U

CN216816645U - Fluid multi-parameter real-time monitoring equipment for oil field

Info

Publication number: CN216816645U
Application number: CN202120399215.0U
Authority: CN
Inventors: 赵毅; 滕建强; 屈丹龙; 刘冀宁; 赵德银; 姚彬; 邱海峰; 钟荣强; 李鹏; 杨耀辉
Original assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2022-06-24
Anticipated expiration: 2031-02-23

Abstract

The utility model provides a fluid multi-parameter real-time monitoring device for an oil field, which comprises: the liquid filtering unit comprises a sample injection pipeline communicated with an oil field and a fluid filtering device arranged on the sample injection pipeline; a liquid measurement unit comprising a measurement line in communication with the fluid filtration device and a fluid measurement device disposed on the measurement line; and a drainage line in communication with the liquid measurement unit. The monitoring equipment further comprises a cleaning pipeline communicated with the fluid filtering device, and the cleaning pipeline can uninterruptedly introduce clean water flow to the fluid filtering device. The fluid multi-parameter real-time monitoring equipment for the oil field can realize real-time monitoring, and can realize automatic cleaning and maintenance, self-monitoring and abnormal alarming, thereby realizing automatic operation and reducing the frequency of manual operation and maintenance.

Description

Fluid multi-parameter real-time monitoring equipment for oil field

Technical Field

The utility model relates to a fluid multi-parameter real-time monitoring device for an oil field.

Background

In the production process of an oil field, workers need to monitor the oily wastewater produced by the oil field, oilfield reinjection water and the like so as to obtain the physical and chemical properties of the oily wastewater. At present, the domestic oil field mostly adopts a laboratory method for monitoring the oil field water. The method is to collect the oily wastewater back to a laboratory for detection and analysis according to certain national standards. Although the method has high accuracy, the real-time monitoring cannot be carried out, and the data of one hand of the water quality condition cannot be known in time. And because the manual sampling period is longer, the process is complicated, and the water quality treatment process is not easy to control and manage. Meanwhile, the cost of the manual sampling monitoring is high, the automation is not easy to realize, and the operation cost is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the technical problems mentioned above, the present invention aims to provide a real-time fluid multi-parameter monitoring device for oil field. The equipment can realize real-time monitoring, and can realize automatic cleaning and maintenance, self-monitoring and abnormal alarming, thereby being capable of automatically running and reducing the frequency of manual operation and maintenance.

The fluid multi-parameter real-time monitoring equipment for the oil field comprises a liquid filtering unit, wherein the liquid filtering unit comprises a sample injection pipeline communicated with the oil field and a fluid filtering device arranged on the sample injection pipeline; a liquid measurement unit comprising a measurement line in communication with the fluid filtration device and a fluid measurement device disposed on the measurement line; and a drain line in communication with the liquid measurement unit.

The device for monitoring the multiple parameters of the fluid in the oil field in real time further comprises a cleaning pipeline communicated with the fluid filtering device, and the cleaning pipeline can continuously introduce clean water flow to the fluid filtering device.

In a preferred embodiment, the fluid filtration device is configured as a stepless filtration device having a first end with greater physical filtration precision and a second end with less physical filtration precision.

In a preferred embodiment, the measuring line has a first measuring line connected to a first end of the fluid filter device and a second measuring line connected to a second end of the fluid filter device.

In a preferred embodiment, the fluid measuring device includes a plurality of chemical property analyzing instruments disposed on the first measuring line and a plurality of physical property analyzing instruments disposed on the second measuring line.

In a preferred embodiment, the chemical property analyzing apparatus includes at least a PH meter and a total iron analyzer, and the physical property analyzing apparatus includes at least a turbidity meter and a liquid oil content meter.

In a preferred embodiment, the drainage pipeline further comprises a liquid storage tank, and a liquid level measuring instrument is arranged on the liquid storage tank.

In a preferred embodiment, a liquid level alarm device is further arranged on the liquid storage tank, and the alarm device is arranged to give an alarm and shut down the equipment when the liquid level of the liquid storage tank drops at a speed exceeding a certain threshold value.

In a preferred embodiment, a waste cartridge is also connected to the first measuring line.

In a preferred embodiment, the sampling pipeline is provided with a pressure gauge and a pressure reducing valve.

In a preferred embodiment, a pressure alarm device is further arranged on the sample introduction pipeline, and the pressure alarm device is arranged to give an alarm and shut down the equipment when the pressure in the sample introduction pipeline exceeds a certain threshold value.

Drawings

The utility model will now be described with reference to the accompanying drawings.

Fig. 1 schematically shows a schematic diagram of a fluid multi-parameter real-time monitoring device for an oilfield according to the present invention.

In the present application, the drawings are all schematic and are used only for illustrating the principles of the utility model and are not drawn to scale.

Detailed Description

The utility model is described below with reference to the accompanying drawings.

Fig. 1 shows a fluid multi-parameter real-time monitoring apparatus 100 for use in an oilfield in accordance with the present invention. As shown in fig. 1, the multi-parameter real-time monitoring device 100 for fluids in oil fields comprises a fluid filtering unit 1. The liquid filtering unit 1 includes a sample injection pipeline 10 communicated with an oil field liquid outlet (not shown), and high-pressure fluid in the oil field enters the apparatus 100 through the sample injection pipeline 10.

In a preferred embodiment, a pressure reducing valve 12 is provided on the sample injection line 10, the pressure reducing valve 12 being used to reduce and stabilize the pressure of the fluid entering the monitoring device 100. Meanwhile, a pressure gauge 14 and a pressure alarm device 16 are arranged on the sample injection pipeline 10. The pressure gauge 14 is used to monitor the pressure of the fluid entering the monitoring device 100 in real time. When the fluid pressure is greater than a certain set threshold value, the pressure alarm device 16 can give an alarm and turn off the power supply 15, so that the monitoring device 100 can realize self-monitoring and avoid production accidents.

Meanwhile, the liquid filtering unit 1 further includes a fluid filtering device 20 disposed on the sample injection pipeline 10, wherein the fluid filtering device 20 is used for performing preliminary filtering on the fluid entering the monitoring device 100. Also connected to the fluid filter device 20 is a cleaning line 30, the cleaning line 30 being in communication with a source of clean water (not shown). The cleaning line 30 allows for uninterrupted flow of clean water into the fluid filter assembly 20, thereby preventing filtered oil contaminants from clogging the fluid filter assembly 20. Through the arrangement, the monitoring device 100 can normally work for a long time, meanwhile, the maintenance frequency of the monitoring device 100 by workers can be reduced, and the labor intensity of workers is reduced.

As shown in fig. 1, the real-time fluid multi-parameter monitoring device 100 for an oilfield further includes a fluid measurement unit 2. The fluid measuring unit 2 comprises a measuring line 40 communicating with the liquid filtering device 20 and a plurality of fluid measuring devices arranged on the measuring line 40. Wherein the measuring line 40 comprises a first measuring line 42 and a second measuring line 44. The plurality of fluid measuring devices may be classified into chemical property analyzing instruments and physical property analyzing instruments. The chemical characteristic analysis instruments include a PH meter 52 and a total iron analyzer 54, and the physical characteristic analysis instruments include a turbidity meter 56 and a liquid oil content meter 58. It should be noted that, the staff may also add other measuring instruments according to the actual monitoring needs on site, and the kinds of the analyzing instruments are not limited herein.

In a preferred embodiment, the plurality of chemical characteristic analyzers are collectively connected to the first measuring line 42, and the plurality of physical characteristic analyzers are collectively connected to the second measuring line 44. Through the separated arrangement mode, the mutual interference possibly occurring in the monitoring process can be avoided, and the accuracy of the monitoring data is improved.

In a preferred embodiment, the fluid filter assembly 20 is configured as a continuously variable filter assembly having a physical filtration capacity that increases with increasing height such that the fluid filter assembly 20 has a first end 22 with a greater physical filtration capacity and a second end 24 with a lesser physical filtration capacity such that the first end 22 has a greater physical filtration capacity than the second end 24. Also, the first measurement line 42 is connected to the first end 22 and the second measurement line 44 is connected to the first end 24. Since the physical filtration of the fluid does not change its chemical properties, the fluid with less physical filtration accuracy can be passed to the second measurement line 44 to measure its physical properties, while the fluid with greater filtration accuracy can be passed to the first measurement line 42 to measure its chemical properties. By this arrangement, it is ensured that the primary filtering of the fluid by the fluid filtering device 20 does not affect the accuracy of the monitoring data.

As shown in fig. 1, the real-time fluid multi-parameter monitoring apparatus 100 for an oilfield further comprises a drainage line 60 in communication with the first measurement line 42 and the second measurement line 44. The bleed line 60 is used to bleed fluid from the first measurement line 42 and the second measurement line 44.

In a preferred embodiment, the drain line 60 further includes a reservoir tank 70. The reservoir 70 includes a first reservoir 72 and a second reservoir 74 disposed in the first measurement line 42 and the second measurement line 44, respectively. The reservoir 70 is used to store and buffer the fluid in the first measurement line 42 and the second measurement line 44 to provide a steady flow of fluid to the waste line 60. Meanwhile, a liquid level measuring instrument 80 is further arranged on the liquid storage tank 70, and the liquid level measuring instrument 80 is used for monitoring the liquid level height in the liquid storage tank 70 in real time.

In a preferred embodiment, a chemical waste liquid filtering device (not shown) is further disposed in the first storage tank 72, and a waste liquid tank 75 is further connected to the first storage tank 72. The waste liquid tank 75 is used for storing filtered chemical waste liquid, and prevents the chemical waste liquid generated during the detection of the chemical property of the fluid from being directly discharged to pollute the environment.

In a preferred embodiment, a liquid level alarm device (not shown) is also provided within the reservoir 70. The liquid level alarm device is configured to alarm and shut off the power supply 15 and shut down the entire monitoring apparatus 100 when the liquid level drop rate of the liquid storage tank 70 exceeds a certain threshold. It will be readily appreciated that in extreme cases where the fluid filter device 20 is too heavily contaminated and the cleaning line 30 is difficult to clean in a timely manner, the fluid filter device 20 may become clogged and fluid may be difficult to flow out of the filter device 20. The fluid flow into the reservoir 70 is now substantially reduced, causing the fluid level in the reservoir 70 to drop rapidly. In this case, the liquid level alarm device can function to cut off and protect the entire monitoring apparatus 100, thereby preventing the occurrence of a production accident.

The following briefly describes the use of the fluid multi-parameter real-time monitoring device 100 for an oilfield in accordance with the present invention.

The fluid multi-parameter real-time monitoring device 100 for an oil field of the present invention is used for real-time monitoring of a fluid. During the monitoring process, the high-pressure fluid is depressurized from the inlet line 10 through the pressure reducing valve 12 and then enters the fluid filtering device 20 for preliminary filtering. During the filtering process, the cleaning line 30 introduces clean water into the fluid filtering device 20 to clean the fluid filtering device 20, so as to prevent the fluid filtering device 20 from being blocked.

When the fluid entering the device 100 is primarily filtered, the fluid with higher physical filtering precision flows into the first measuring line 42, monitors the chemical property of the fluid, flows through the first storage tank 75, flows to the stock-out line 60, and is discharged out of the monitoring device 100. The fluid having a lower physical filtration accuracy flows into the second measurement line 44, the physical properties of the fluid are monitored, and the fluid passes through the second reservoir 74, flows to the discharge line 60, and is discharged out of the monitoring apparatus 100.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A real-time monitoring device of multiple parameters of fluid for an oil field, comprising:

the liquid filtering unit (1) comprises a sample injection pipeline (10) communicated with an oil field and a fluid filtering device (20) arranged on the sample injection pipeline;

a liquid measuring unit (2) comprising a measuring line (40) communicating with the fluid filtering device and a fluid measuring device arranged on the measuring line; and the number of the first and second groups,

a drainage line (60) in communication with the liquid measurement unit,

the device for monitoring the multiple parameters of the fluid in the oil field in real time further comprises a cleaning pipeline (30) communicated with the fluid filtering device, and the cleaning pipeline can continuously introduce clean water flow to the fluid filtering device.

2. The real-time multiparameter fluid monitoring apparatus for oil fields according to claim 1, wherein the fluid filtering device is configured as a stepless filtering device, the first end (22) of the fluid filtering device having a greater physical filtering accuracy than the second end (24).

3. The real-time multi-parameter fluid monitoring apparatus for use in oilfield according to claim 2, wherein the measurement line has a first measurement line (42) connected to a first end of the fluid filtering device and a second measurement line (44) connected to a second end of the fluid filtering device.

4. The real-time multi-parameter fluid monitoring apparatus for use in oilfield according to claim 3, wherein the fluid measuring device comprises a plurality of chemical property analyzers disposed on the first measurement line and a plurality of physical property analyzers disposed on the second measurement line.

5. An oilfield fluid multiparameter real-time monitoring device according to claim 4, wherein the chemical property analyzers comprise at least a PH meter (52) and a total iron analyzer (54), and the physical property analyzers comprise at least a turbidity meter (56) and a liquid oil content meter (58).

6. The real-time monitoring device of the multiple parameters of the fluid for oilfield according to any one of claims 1-5, wherein the drainage pipeline further comprises a liquid storage tank (70) on which a liquid level gauge (80) is arranged.

7. The real-time multi-parameter fluid monitoring device for oil fields as claimed in claim 6, wherein a liquid level alarm device is further provided on the liquid storage tank, the alarm device is configured to give an alarm and turn off the device when the liquid level of the liquid storage tank drops at a speed exceeding a certain threshold value.

8. The real-time multi-parameter fluid monitoring device for oil fields according to claim 6, wherein a waste liquid cartridge (75) is further connected to the storage tank.

9. The real-time monitoring equipment of the multiple parameters of the fluid for the oilfield according to any one of the claims 1 to 5, wherein a pressure gauge (12) and a pressure reducing valve (14) are arranged on the sampling pipeline.

10. The real-time monitoring equipment of the multiple parameters of the fluid for the oilfield according to any one of the claims 1-5, wherein a pressure alarm device (16) is further arranged on the sample injection pipeline, and the pressure alarm device is arranged to give an alarm and shut down the equipment when the pressure in the sample injection pipeline exceeds a certain threshold value.