A device for deodorizing residual acid in acidification flowback fluid

Abstract

The present invention discloses a device for deodorizing residual acid in acidification flowback liquid. The device comprises a flowback tank, an acidification flowback drainage pipeline, a flowback liquid collection unit, a monitoring box, an air intake housing, and an exhaust gas treatment unit. The acidification flowback drainage pipeline is connected to the flowback liquid collection unit, which is connected to the monitoring box via a liquid inlet pipeline. The air intake housing is mounted on the edge of the flowback tank and is connected to the exhaust gas treatment unit. The device can automatically sample acidification flowback liquid and perform online real-time monitoring of key parameters. It can also treat various toxic and hazardous gases, reducing labor intensity, improving monitoring accuracy, reducing environmental and human pollution, and increasing the degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of deodorization of acidified flowback liquid, in particular to a residual acid deodorization device used in acidified flowback liquid. Background Art

[0002] Acidizing is a common production-enhancing measure during the oil and gas production process, which uses various acidic fluids to react with rock formations in the formation to form acid-rock wormholes, thereby increasing the permeability of the rock formation and improving oil and gas production efficiency.

[0003] During the acidification flowback process, various flowback fluid parameters must be monitored, including viscosity, pH, chloride ion content, calcium ion content, and magnesium ion content. These parameters directly or indirectly reflect the effectiveness of the acidification and help accurately formulate subsequent production-enhancing measures. Furthermore, after the acidification process is completed, the acidification flowback fluid enters the flowback tank. This flowback fluid contains unconsumed hydrogen ions and other acid additives. These residual acids and additives not only emit toxic and harmful gases but also have a strong, irritating odor, posing a risk to personnel and the surrounding environment.

[0004] Currently, monitoring of various parameters of acidification flowback fluid, both domestically and internationally, primarily relies on multi-point sampling and manual testing and analysis. This approach suffers from discontinuous data generation, low detection accuracy, and significant sampling difficulty. Furthermore, current research has failed to identify on-site gas treatment devices and methods for acidification flowback fluid. Therefore, how to automatically sample acidification flowback fluid, monitor key parameters online in real time, and treat various toxic and hazardous gases, while reducing workload, improving monitoring accuracy, and minimizing environmental and personnel pollution, while increasing automation, is a pressing issue. Summary of the Invention

[0005] The purpose of the present invention is to provide a residual acid deodorization device for acidification return fluid, which can automatically sample the acidification return fluid and monitor key parameters online in real time, and can treat various toxic and harmful gases, reduce personnel workload, improve monitoring accuracy, reduce environmental and personnel pollution, and improve the degree of automation.

[0006] To achieve the above object, the present invention provides a device for deodorizing residual acid in acidification flowback liquid, the device comprising: a flowback tank, an acidification flowback liquid pipeline, a flowback liquid collection unit, a monitoring box, an air intake shell and an exhaust gas treatment unit;

[0007] The acidification backflow drainage pipeline is connected to the backflow liquid collection unit, and the backflow liquid collection unit is connected to the monitoring box through a liquid inlet pipeline. The air intake shell is installed on the edge of the backflow tank, and the air intake shell is connected to the exhaust gas treatment unit.

[0008] Optionally, the flowback liquid collection unit is installed on the edge of the flowback tank to collect acidified flowback liquid, wherein the edge of the flowback tank where the flowback liquid collection unit is installed is different from the edge of the flowback tank where the air suction shell is installed.

[0009] Optionally, the flowback liquid collection unit includes: a fixing module for fixing the acidification flowback liquid pipeline.

[0010] Optionally, the flowback liquid collection unit further includes a flowback liquid collection bucket, which is arranged below the acidification flowback drainage pipeline and is used to store the collected acidification flowback liquid.

[0011] Optionally, the device further comprises: a drainage pipeline connecting the monitoring box and the flowback tank, for transporting the acidified flowback liquid to the flowback tank.

[0012] Optionally, the monitoring box includes: a parameter display screen for displaying parameter data in the acidification return fluid.

[0013] Optionally, the monitoring box further includes: a flowback fluid monitoring chamber for storing acidified flowback fluid.

[0014] Optionally, the monitoring box further comprises: a pump for sucking the acidified flowback fluid into the flowback fluid monitoring cavity.

[0015] Optionally, the monitoring box further includes: a flowback fluid parameter monitoring probe for monitoring parameters of the acidified flowback fluid.

[0016] Optionally, the suction shell is installed on three sides of the backflow tank.

[0017] Optionally, the air suction housing includes: an air suction housing shell, which is used to suck gas volatilized from the acidified return fluid.

[0018] Optionally, the air intake housing further comprises: an air intake hole for allowing residual acid waste gas to pass through.

[0019] Optionally, the device further includes: an exhaust gas delivery pipeline for connecting the air intake housing and the exhaust gas treatment unit.

[0020] Optionally, the waste gas treatment unit includes: a gas storage chamber for storing residual acid waste gas.

[0021] Optionally, the exhaust gas treatment unit further includes: an air intake module for adjusting the pressure of the gas storage chamber.

[0022] Optionally, the waste gas treatment unit further includes: a one-way valve for discharging the gas after the residual acid waste gas is treated.

[0023] Optionally, the waste gas treatment unit further includes: a filtering module for removing acidic gases and impurities in the residual acid waste gas.

[0024] Technical effects and advantages of the present invention:

[0025] The present invention provides a device for deodorizing residual acid in acidification flowback liquid. The device comprises: a flowback tank, an acidification flowback drainage pipeline, a flowback liquid collecting unit, a monitoring box, an air intake shell and a waste gas treatment unit; the acidification flowback drainage pipeline is connected to the flowback liquid collecting unit, the flowback liquid collecting unit is connected to the monitoring box via a liquid inlet pipeline, the air intake shell is installed on the edge of the flowback tank, and the air intake shell is connected to the waste gas treatment unit.

[0026] The device can automatically sample acidification flowback fluid and conduct online real-time monitoring of key parameters. It can also process various toxic and harmful gases, reduce personnel workload, improve monitoring accuracy, reduce environmental and personnel pollution, and increase the degree of automation.

[0027] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural diagram of a residual acid deodorization device used in acidification flowback fluid;

[0029] Figure 2 This is a structural diagram of the flowback fluid collection unit;

[0030] Figure 3 This is the structural diagram of the monitoring box;

[0031] Figure 4 This is the structural diagram of the air intake shell;

[0032] Figure numerals: 1-acidification backflow drainage pipeline, 2-intake shell, 3-backflow liquid collection unit, 4-waste gas transmission pipeline, 5-gas storage chamber, 6-check valve, 7-liquid inlet pipeline, 8-monitoring box, 9-intake module, 10-filtration module, 11-fixed module, 12-backflow liquid collection bucket, 13-drainage pipeline, 14-parameter display screen, 15-pump, 16-backflow liquid parameter monitoring probe, 17-backflow liquid monitoring chamber, 18-intake shell shell and 19-intake hole. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0035] In order to address the deficiencies of the prior art, the present invention discloses a device for deodorizing residual acid in acidified flowback liquid. The system comprises: a flowback tank, an acidified flowback drainage pipeline, a flowback liquid collecting unit, a monitoring box, an air intake shell, and a waste gas treatment unit. The acidified flowback drainage pipeline is connected to the flowback liquid collecting unit, and the flowback liquid collecting unit is connected to the monitoring box via a liquid inlet pipeline. The air intake shell is installed on the edge of the flowback tank, and the air intake shell is connected to the waste gas treatment unit.

[0036] The device can automatically sample acidification flowback fluid and conduct online real-time monitoring of key parameters. It can also process various toxic and harmful gases, reduce personnel workload, improve monitoring accuracy, reduce environmental and personnel pollution, and increase the degree of automation.

[0037] It should be noted that the markings in the accompanying drawings are: 1-acidification return liquid drainage pipeline, 2-intake shell, 3-return liquid collection unit, 4-waste gas transmission pipeline, 5-gas storage chamber, 6-check valve, 7-liquid inlet pipeline, 8-monitoring box, 9-intake module, 10-filter module, 11-fixed module, 12-return liquid collection barrel, 13-drainage pipeline, 14-parameter display screen, 15-pump, 16-return liquid parameter monitoring probe, 17-return liquid monitoring chamber, 18-intake shell shell and 19-intake hole.

[0038] In order to better explain this solution, the residual acid deodorization device used in the acidification return fluid is introduced in detail below.

[0039] A device for deodorizing residual acid in acidification flowback fluid, such as Figure 1 The device comprises: a flowback tank, an acidification flowback drainage pipeline 1, a flowback liquid collection unit 3, a monitoring box 8, an air intake shell 2, and a waste gas treatment unit; the acidification flowback drainage pipeline 1 is connected to the flowback liquid collection unit 3, the flowback liquid collection unit 3 is connected to the monitoring box 8 via a liquid inlet pipeline 7, the air intake shell 2 is installed on the edge of the flowback tank, and the air intake shell 2 is connected to the waste gas treatment unit.

[0040] It should be noted that the flowback tank is preferably a rectangular parallelepiped.

[0041] It should also be noted that the flowback liquid collection unit 3 is installed on the side of the flowback tank and is used to collect the acidified flowback liquid.

[0042] The backflow liquid collection unit 3 is installed on the side of the backflow pool, which is different from the side of the suction shell being installed on the side of the backflow pool. Preferably, the suction shell 2 is installed on three sides of the backflow pool.

[0043] It should also be noted that the flowback liquid collection unit 1 includes: a fixing module 11 for fixing the acidification flowback liquid pipeline; a flowback liquid collection bucket 12, which is arranged below the acidification flowback liquid pipeline and is used to store the collected acidification flowback liquid. Figure 2 shown.

[0044] It should also be noted that the system further comprises: a drainage pipeline 13 connecting the monitoring box 8 and the flowback tank, for transporting the acidified flowback liquid to the flowback tank, such as Figure 2 shown.

[0045] It should also be noted that the monitoring box 8 includes: a parameter display screen 14 for displaying parameter data in the acidification return fluid; a return fluid monitoring chamber 17 for storing the acidification return fluid; a pump 15 for sucking the acidification return fluid into the return fluid monitoring chamber; a return fluid parameter monitoring probe 16 for monitoring the parameters of the acidification return fluid, such as Figure 3 shown.

[0046] It should also be noted that the suction housing 2 includes: a suction housing shell 18, which is used to suck the volatilized gas of the acidification return liquid. The suction hole 19 is used to pass the residual acid waste gas, such as Figure 4 shown.

[0047] It should also be noted that the system further comprises: an exhaust gas delivery pipeline 4 for connecting the air intake housing and the exhaust gas treatment unit. Preferably, the exhaust gas delivery pipeline 4 connects the air intake housing and the filter module in the exhaust gas treatment unit.

[0048] It should also be noted that the waste gas treatment unit includes: a gas storage chamber 5 for storing residual acid waste gas; an air intake module 9 for adjusting the pressure of the gas storage chamber; a check valve 6 for discharging the treated residual acid waste gas; and a filter module for removing acid gases and impurities from the residual acid waste gas.

[0049] It should also be noted that the acidification return liquid drainage pipeline 1, the suction shell 2, the return liquid collection unit 3, the exhaust gas delivery pipeline 4, the liquid inlet pipeline 7, the drainage pipeline 16, the return liquid collection barrel 13 and the return liquid monitoring chamber 17 are all made of acid-resistant materials, the monitoring box 8 is made of explosion-proof materials, the filter module 10 uses a replaceable filter element, and the return liquid parameter monitoring probe 16 is connected using a quick connector.

[0050] In order to better understand this solution, the installation and use of the device are explained below.

[0051] When it is necessary to monitor the performance parameters of the backflow liquid online and deodorize the backflow liquid, the operator first installs the filter element of the filter unit 10;

[0052] Furthermore, the fixing module 11 and the backflow liquid collection barrel 12 in the backflow liquid collection unit 3 are installed;

[0053] Further, the air intake housing 2 is installed;

[0054] Further, connect the liquid inlet line 7, the monitoring box 8, and the liquid discharge line 13;

[0055] Further, the exhaust gas delivery pipeline 4, the air intake housing 2, and the filter module 10 are connected;

[0056] Furthermore, a flowback fluid parameter monitoring probe 16 is installed;

[0057] Further, the system power is turned on and the parameter display screen 14 is turned on;

[0058] Further, the pump 15 is turned on;

[0059] Further, the air intake module 9 is turned on;

[0060] When the backflow construction is completed, turn off the power supply, clean the backflow liquid collection unit 3, the liquid inlet pipeline 7, the monitoring box 8, and the liquid discharge pipeline 13; and remove the backflow liquid parameter monitoring probe 16, etc.

[0061] After the acidification construction is completed, the acidification return fluid enters the return pool from the acidification return drainage pipeline 1. In order to avoid changing the drainage pipeline, a fixed module 11 and a return fluid collection bucket 13 are installed at the edge of the return pool, and a liquid inlet pipeline 7 is installed at the bottom of the return fluid collection bucket 12. The return fluid is sucked into the return fluid monitoring cavity 17 in the monitoring box 8 by the pump 15. The return fluid is monitored in the return fluid monitoring cavity 17 by the return fluid parameter monitoring probe 16 for parameters such as return fluid viscosity, density, pH value, calcium ion content, and magnesium ion content. After the parameters stabilize, they are displayed on the parameter display screen 14, and then the pump 15 is turned on (it should be noted that the pump 18 includes two pumps, one is responsible for sucking the liquid into the cavity, and the other is responsible for discharging the tested liquid back to the return pool), and the liquid in the return fluid monitoring cavity 17 is discharged into the return pool through the drainage pipeline 16.

[0062] When the backflow liquid starts to flow back, the suction module 9 is turned on to form a negative pressure in the gas storage chamber 5, and the residual acid waste gas flows into the filter module 10 from the suction hole 19 on the suction shell 2. The filter module 10 mainly contains filter materials such as calcium oxide and activated carbon to remove acidic gases and impurities in the waste gas. After the waste gas is treated, it is discharged through the one-way valve 6 in the gas storage chamber 5.

[0063] The present invention discloses a device for deodorizing residual acid in acidification flowback liquid. The device comprises a flowback tank, an acidification flowback drainage pipeline, a flowback liquid collection unit, a monitoring box, an air intake housing, and an exhaust gas treatment unit. The acidification flowback drainage pipeline is connected to the flowback liquid collection unit, which is connected to the monitoring box via a liquid inlet pipeline. The air intake housing is mounted on the edge of the flowback tank and is connected to the exhaust gas treatment unit. The device can automatically sample acidification flowback liquid and perform online real-time monitoring of key parameters. It can also treat various toxic and hazardous gases, reducing labor intensity, improving monitoring accuracy, reducing environmental and human pollution, and increasing the degree of automation.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for deodorizing residual acid in acidified flowback liquid, characterized in that: The device comprises: a flowback tank, an acidification flowback liquid pipeline, a flowback liquid collection unit, a monitoring box, an air suction shell and an exhaust gas treatment unit; The acidification flowback liquid pipeline is connected to the flowback liquid collection unit, and the flowback liquid collection unit is connected to the monitoring box through a liquid inlet pipeline. The air intake shell is installed on the edge of the flowback tank, and the air intake shell is connected to the exhaust gas treatment unit; The flowback liquid collection unit is installed on the side of the flowback tank to collect the acidified flowback liquid, wherein the side of the flowback tank where the flowback liquid collection unit is installed is different from the side of the flowback tank where the air suction housing is installed; The flowback liquid collection unit includes: a fixing module for fixing the acidification flowback liquid pipeline; The device further comprises: a drainage pipeline connecting the monitoring box and the flowback tank, for transporting the acidified flowback liquid to the flowback tank; The monitoring box includes: a parameter display screen for displaying parameter data in the acidification flowback fluid; The monitoring box further comprises: a flowback fluid monitoring chamber for storing acidification flowback fluid; The monitoring box further comprises: a pump for sucking the acidified flowback fluid into the flowback fluid monitoring cavity; The monitoring box further comprises: a flowback fluid parameter monitoring probe for monitoring the parameters of the acidified flowback fluid.

2. The residual acid deodorization device for acidification flowback liquid according to claim 1, characterized in that: The flowback liquid collection unit further includes a flowback liquid collection bucket, which is arranged below the acidification flowback liquid pipeline and is used to store the collected acidification flowback liquid.

3. The residual acid deodorization device for acidification flowback liquid according to claim 1, characterized in that: The suction shell is installed on three sides of the return tank.

4. The residual acid deodorization device for acidification flowback liquid according to claim 1, characterized in that: The air suction shell comprises an air suction shell shell, which is used to suck the gas volatilized from the acidified return fluid.

5. The residual acid deodorization device for acidification flowback liquid according to claim 4, characterized in that: The air intake shell further comprises an air intake hole for passing residual acid waste gas.

6. The residual acid deodorization device for acidification flowback liquid according to claim 1, characterized in that: The device further comprises an exhaust gas delivery pipeline for connecting the air intake housing and the exhaust gas treatment unit.

7. The residual acid deodorization device for acidification flowback liquid according to claim 1, characterized in that: The waste gas treatment unit includes: a gas storage chamber for storing residual acid waste gas.

8. The device for deodorizing residual acid in acidified flowback fluid according to claim 7, characterized in that: The exhaust gas treatment unit further includes an air intake module for adjusting the pressure of the gas storage chamber.

9. The device for deodorizing residual acid in acidified flowback liquid according to claim 7, characterized in that: The waste gas treatment unit further comprises: a one-way valve for discharging the gas after the residual acid waste gas is treated.

10. The device for deodorizing residual acid in acidified flowback fluid according to claim 7, characterized in that: The waste gas treatment unit further comprises: a filtering module for removing acidic gases and impurities in the residual acid waste gas.

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