CN216377729U

CN216377729U - Efficient treatment device for fracturing flow-back fluid

Info

Publication number: CN216377729U
Application number: CN202122591314.1U
Authority: CN
Inventors: 李广平; 王瑾; 王兆礼; 高莎; 乔占英
Original assignee: Inner Mongolia Hengsheng Environmental Technology Engineering Co ltd
Current assignee: Inner Mongolia Hengsheng Environmental Technology Engineering Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-26
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a high-efficiency treatment device for fracturing flow-back fluid, which relates to the field of waste liquid treatment and comprises a collecting tank, a bipolar vertical flow settler, a four-stage hardening remover, an ozone air-flotation device, a collecting tank and a filter press, wherein a pipeline mixer is arranged on one side of the collecting tank, the top of the pipeline mixer is connected with a first feeding pipe, a plurality of first pumping pumps are arranged below the inner part of the four-stage hardening remover, and the discharge ends of the first pumping pumps are connected with a first discharge pipe extending into the collecting tank. The utility model reduces the cost of normally supplementing water by using tap water and the treatment cost of the flowback fluid, simultaneously, the produced water after multi-stage treatment completely meets the requirement of preparing the drilling fluid, improves the efficiency, realizes the treatment of the fracturing flowback fluid and the compounding of the drilling fluid on a drilling site, and secondly, reduces the production cost and the transportation cost of collecting and transporting the fracturing flowback fluid to a centralized treatment plant.

Description

Efficient treatment device for fracturing flow-back fluid

The technical field is as follows:

the utility model relates to the technical field of waste liquid treatment, in particular to a high-efficiency treatment device for fracturing flow-back fluid.

Background art:

the SS concentration of the fracturing flow-back fluid is higher and is in a range of 180-650 mg/L, the viscosity of the wastewater is higher and is about 8-15 mpa.s due to the addition of the thickening agent and other chemical agents, the concentration of organic pollutants is high, and the COD is generally in a range of 3000-6000 mg/L.

The existing treatment mode is generally field reinjection of drilling crews or centralized treatment of the drilling crews by qualified enterprises, the field reinjection is called at present due to environmental protection requirements, the main treatment mode is collection to centralized treatment plants for centralized treatment, the centralized treatment can increase the hauling and treatment costs, and the treated flowback liquid cannot meet the requirements easily.

The utility model has the following contents:

the utility model aims to provide an efficient treatment device for fracturing flowback fluid, which aims to solve the problem that the fracturing flowback fluid is difficult to treat in the prior art.

The utility model is implemented by the following technical scheme: the utility model provides a flowing back high-efficient processing apparatus is returned to fracturing, removes hard ware, ozone air supporting ware, collecting pit and pressure filter including collection tank, bipolar vertical flow settler, level four, the line mixer is installed to one side of collection tank, the top of line mixer is connected with first filling tube, the inside below that the hard ware was removed to the level four is installed a plurality of first suction pumps, the discharge end of first suction pump is connected with the first row of material pipe that extends to the collecting pit inside, the feed end of first suction pump is connected with first inlet pipe, the collecting pit is located level four and is removed hard ware and ozone air supporting ware under, third suction pump is installed to the bottom of ozone air supporting ware, the feed end of third suction pump is connected with third feed pipe, the discharge end of third suction pump is connected with the third row of material pipe.

Through adopting above-mentioned technical scheme, the inside mud of hard ware is removed to first extraction pump extractable level four, and inside mud can get into the collecting pit through first discharge tube, and the pipeline mixer can mix liquid.

Preferably, first drawing liquid pump is installed to one side of bipolar perpendicular flow settler, the feed liquor end of first drawing liquid pump is connected with the first liquid suction pipe that extends to the inside of tube-to-tube mixer, the play liquid end of first drawing liquid pump is connected with the first transfer line that extends to bipolar perpendicular flow settler inside, the fourth drawing pump is installed to one side of collecting pit, the feed end of fourth drawing pump is connected with the fourth inlet pipe that extends to bipolar perpendicular flow settler inside, the discharge end of fourth drawing pump is connected with the fourth row's of extending to the collecting pit inside pipe.

By adopting the technical scheme, the first liquid pump can extract the liquid in the pipeline mixer, the liquid can enter the bipolar vertical flow settler for treatment, and the fourth liquid pump can extract the sludge in the bipolar vertical flow settler and pump the sludge to the inside of the collecting tank.

Preferably, a second liquid pump is installed on one side of the four-stage hardpan, the liquid inlet end of the second liquid pump is connected with a second liquid pumping pipe extending to the inside of the bipolar vertical flow settler, the liquid outlet end of the second liquid pump is connected with a second liquid conveying pipe extending to the inside of the four-stage hardpan, and the top of the second liquid conveying pipe is connected with a second feeding pipe.

Through adopting above-mentioned technical scheme, the inside liquid of bipolar vertical flow settler can be taken to the second drawing pump, and liquid gets into and removes the interior processing of hard ware to the level four, and accessible second filling tube adds the medicament to liquid inside simultaneously.

Preferably, the third drawing liquid pump is installed to the opposite side that the level four removes hard ware, the feed liquor end of third drawing liquid pump is connected with and extends to the inside third drawing liquid pipe of level four removes hard ware, the play liquid end of third drawing liquid pump is connected with the third transfer line that extends to the inside of ozone air supporting ware, the third filling tube is installed at the top of ozone air supporting ware.

Through adopting above-mentioned technical scheme, the third drawing liquid pump can be with the level four remove the inside liquid of hardwares and take out to ozone air supporting in the ware to handle liquid, medicament accessible third filling tube adds to inside liquid simultaneously.

Preferably, a second pumping pump is installed on one side of the filter press, a feeding end of the second pumping pump is connected with a second feeding pipe extending to the inside of the collecting tank, and a discharging end of the second pumping pump is connected with a second discharging pipe extending to the inside of the filter press.

By adopting the technical scheme, the second pumping pump can pump the sludge in the collecting tank into the filter press and can filter the sludge by the filter press.

The utility model has the advantages that:

the utility model reduces the cost of normal water supplement by tap water and the treatment cost of the flowback fluid, simultaneously, the produced water after multi-stage treatment completely meets the requirement of preparing the drilling fluid, improves the efficiency, realizes the treatment of the fracturing flowback fluid and the compounding of the drilling fluid on a drilling site, secondly, the production cost is reduced, the transportation cost of collecting and transporting the fracturing flow-back fluid to a centralized treatment plant is reduced, secondly, various medicaments required in the process of secondary preparation of the drilling fluid can be reduced, the cost is reduced, and finally, the method is popularized and used for recycling the drilling fracturing flow-back fluid and the drilling fluid, has good application prospect, in addition, in the areas with deficient water resources, a large amount of underground water is needed for preparing the drilling fluid, and the high-efficiency drilling fluid treatment device is arranged on the fracturing flow-back fluid site, so that the treated outlet water can be used for preparing the drilling fluid while the reduction of the flow-back fluid is treated, and the problems of water resource waste and drilling fluid waste liquid treatment in the process of preparing the drilling fluid are solved.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a front side of a collecting tank of an efficient treatment device for fracturing flowback fluid according to an embodiment of the utility model;

fig. 2 is a schematic perspective view of a pipeline mixer of an efficient treatment device for fracturing flowback fluid according to an embodiment of the present invention;

fig. 3 is a schematic top view of a collecting tank of the efficient treatment device for fracturing flowback fluid according to the embodiment of the present invention.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, a high-efficiency treatment device for fracturing flow-back fluid comprises a collection tank 1, a bipolar vertical flow settler 7, a four-stage hardness remover 12, an ozone air-flotation device 20, a collection tank 21 and a filter press 31, wherein a pipeline mixer 2 is installed at one side of the collection tank 1, a second liquid pump 8 is installed at one side of the four-stage hardness remover 12, a liquid inlet end of the second liquid pump 8 is connected with a second liquid pumping pipe 9 extending into the bipolar vertical flow settler 7, a liquid outlet end of the second liquid pumping pump 8 is connected with a second liquid conveying pipe 10 extending into the four-stage hardness remover 12, the top of the second liquid conveying pipe 10 is connected with a second liquid conveying pipe 11, a third liquid pumping pump 17 is installed at the other side of the four-stage hardness remover 12, a liquid inlet end of the third liquid pumping pipe 16 extending into the four-stage hardness remover 12 is connected with a liquid conveying pipe 18 extending into the ozone air-flotation device 20, the top of the ozone air flotation device 20 is provided with a third feeding pipe 19, the top of the pipeline mixer 2 is connected with a first feeding pipe 3, a plurality of first pumping pumps 14 are arranged below the inside of the four-stage hardness remover 12, the discharge end of each first pumping pump 14 is connected with a first discharge pipe 15 extending to the inside of the collection tank 21, the feed end of each first pumping pump 14 is connected with a first feed pipe 13, the first pumping pump 14 can pump sludge inside the four-stage hardness remover 12, the sludge can enter the collection tank 21 through the first discharge pipe 15, the collection tank 21 is positioned under the four-stage hardness remover 12 and the ozone air flotation device 20, the bottom of the ozone air flotation device 20 is provided with a third pumping pump 26, the feed end of the third pumping pump 26 is connected with a third feed pipe 25, the discharge end of the third pumping pump 26 is connected with a third discharge pipe 27, one side of the bipolar vertical flow settler 7 is provided with a first pumping pump 4, the liquid inlet end of the first liquid pump 4 is connected with a first liquid pumping pipe 5 extending into the pipeline mixer 2, the liquid outlet end of the first liquid pumping pump 4 is connected with a first liquid conveying pipe 6 extending into the bipolar vertical flow settler 7, one side of the collecting tank 21 is provided with a fourth liquid pumping pump 28, the liquid inlet end of the fourth liquid pumping pump 28 is connected with a fourth liquid feeding pipe 29 extending into the bipolar vertical flow settler 7, the liquid outlet end of the fourth liquid pumping pump 28 is connected with a fourth discharging pipe 30 extending into the collecting tank 21, the first liquid pumping pump 4 can pump the liquid in the pipeline mixer 2, the liquid can enter into the bipolar vertical flow settler 7 for treatment, meanwhile, the fourth liquid pumping pump 28 can pump the sludge in the bipolar vertical flow settler 7 and pump the sludge into the collecting tank 21, one side of the filter press machine 31 is provided with a second liquid pumping pump 22, the liquid inlet end of the second liquid pumping pump 22 is connected with a second liquid feeding pipe 24 extending into the collecting tank 21, the discharge end of the second pumping pump 22 is connected to a second discharge pipe 23 extending into the filter press 31, and the second pumping pump 22 operates to pump the sludge in the collecting tank 21 into the filter press 31 and perform filtering treatment by the filter press 31.

The implementation principle of the embodiment is as follows: firstly, uniformly collecting received flowback liquid to a flowback liquid collecting tank 1, adding a medicament into the flowback liquid when the flowback liquid passes through a pipeline mixer 2, then entering a bipolar vertical flow settler 7 for preliminary sedimentation to reduce suspended matters and other large-particle impurities in a water body, and periodically discharging sediments to a collecting tank 21; then the return drainage liquid passes through a water body settled by vertical flow, enters a four-stage hardness remover 12 after adding a medicament, reduces the hardness of the water body, and periodically discharges sludge generated by hardness removal to a collecting tank 21; after entering the ozone air flotation device 20, adding a medicament and carrying out ozone oxidation treatment to decompose harmful components in the water body, then separating the harmful substances from the water body through the ozone air flotation device 20, wherein the discharged water meets the recycling requirement, and the generated sludge and the harmful substances are periodically discharged to a collecting tank 21; the sludge in the collecting tank 21 is pumped into a filter press 31 for filter-pressing solid-liquid separation after being added with a medicament, the solid-phase sludge is conveyed to a centralized treatment plant for treatment, and the liquid-phase water returns to the bipolar vertical flow settler 7 for treatment again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The efficient treatment device for the fracturing flow-back fluid comprises a collecting tank (1), a bipolar vertical flow settler (7), a four-stage hardness remover (12), an ozone air floatation device (20), a collecting tank (21) and a filter press (31), and is characterized in that a pipeline mixer (2) is installed on one side of the collecting tank (1), a first feeding pipe (3) is connected to the top of the pipeline mixer (2), a plurality of first pumping pumps (14) are installed below the inside of the four-stage hardness remover (12), the discharge end of each first pumping pump (14) is connected with a first discharge pipe (15) extending to the inside of the collecting tank (21), the feed end of each first pumping pump (14) is connected with a first feed pipe (13), the collecting tank (21) is located under the four-stage hardness remover (12) and the ozone air floatation device (20), and a third pumping pump (26) is installed at the bottom of the ozone air floatation device (20), the feed end of the third material pumping pump (26) is connected with a third feeding pipe (25), and the discharge end of the third material pumping pump (26) is connected with a third discharging pipe (27).

2. The device for high-efficiency treatment of the fracturing flow-back fluid according to claim 1, wherein a first liquid pump (4) is installed at one side of the bipolar vertical flow settler (7), a first liquid pumping pipe (5) extending to the inside of the pipeline mixer (2) is connected to the liquid inlet end of the first liquid pumping pump (4), a first liquid conveying pipe (6) extending to the inside of the bipolar vertical flow settler (7) is connected to the liquid outlet end of the first liquid pumping pump (4), a fourth liquid pumping pump (28) is installed at one side of the collecting tank (21), a fourth feeding pipe (29) extending to the inside of the bipolar vertical flow settler (7) is connected to the feeding end of the fourth liquid pumping pump (28), and a fourth discharging pipe (30) extending to the inside of the collecting tank (21) is connected to the discharging end of the fourth liquid pumping pump (28).

3. The device for efficiently treating the fracturing flowback fluid according to claim 1, wherein a second liquid pump (8) is installed on one side of the four-stage de-hardbanding device (12), a second liquid suction pipe (9) extending to the inside of the bipolar vertical flow settler (7) is connected to the liquid inlet end of the second liquid pump (8), a second liquid conveying pipe (10) extending to the inside of the four-stage de-hardbanding device (12) is connected to the liquid outlet end of the second liquid pump (8), and a second filling pipe (11) is connected to the top of the second liquid conveying pipe (10).

4. The device for high-efficiency treatment of the fracturing flow-back fluid according to claim 1, wherein a third liquid pump (17) is installed on the other side of the four-stage de-hardening device (12), a third liquid suction pipe (16) extending to the inside of the four-stage de-hardening device (12) is connected to the liquid inlet end of the third liquid pump (17), a third liquid conveying pipe (18) extending to the inside of the ozone air flotation device (20) is connected to the liquid outlet end of the third liquid pump (17), and a third feeding pipe (19) is installed at the top of the ozone air flotation device (20).

5. The device for the high-efficiency treatment of the fracturing flow-back fluid is characterized in that a second pumping pump (22) is installed on one side of the filter press (31), a second feeding pipe (24) extending to the interior of the collecting tank (21) is connected to the feeding end of the second pumping pump (22), and a second discharging pipe (23) extending to the interior of the filter press (31) is connected to the discharging end of the second pumping pump (22).