CN211141962U

CN211141962U - Dewatering device for oil field gathering and transportation

Info

Publication number: CN211141962U
Application number: CN201921413531.8U
Authority: CN
Inventors: 程雅雯; 王美龙; 田甜; 殷文刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-07-31
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a dehydration device for oil field gathering and transportation, which comprises a demulsification tank, wherein the upper end of the demulsification tank is fixedly connected with a filtering mechanism, the filtering mechanism comprises an oil inlet pipe, a groove and a filtering screen, the groove is positioned at the bottom of the oil inlet pipe, the upper end of the oil inlet pipe is communicated with an extension pipe, the inside of the oil inlet pipe is provided with the obliquely placed filtering screen, one end of the filtering screen is arranged in the groove, the other end of the filtering screen is arranged in the extension pipe, the upper end of the extension pipe is detachably connected with a first sealing cover, the lower end of the oil inlet pipe is communicated with a sewage storage tank, one end of the sewage storage tank is detachably connected with a second sealing cover, one end of the oil inlet pipe is communicated with the demulsification tank, one side of the demulsification tank is communicated with an electric dehydration tank through an oil pipe, the upper end of the oil pipe, the quality of petroleum dehydration is improved.

Description

Dewatering device for oil field gathering and transportation

Technical Field

The utility model relates to an oil field collection is defeated, specifically is an oil field collection is defeated with dewatering device.

Background

Crude oil extracted from a well generally contains a certain amount of water, and the crude oil contains more water, which causes waste in storage and transportation, increases equipment and consumes more energy; most of water in the crude oil contains salts, so that corrosion of equipment, containers and pipelines is accelerated; in the process of petroleum external refining, when water and crude oil are heated together, the water can be vaporized and expanded rapidly, the pressure rises, the normal operation and the product quality of a refinery are affected, and even explosion can occur. Therefore, before transporting crude oil out, dehydration is needed to ensure that the water content is required to be not more than 0.5 percent. All oil fields need to go through a water-containing development period, particularly oil fields with high oil extraction speed and enhanced development by water injection, the water-free oil extraction period is generally short, the oil wells see water early, and the water content of crude oil is increased quickly. The water content of the crude oil not only increases the load of equipment in the processes of storage, transportation and refining. But also increases fuel consumption at the time of temperature rise, even because of scaling or corrosion of equipment and piping caused by salt or the like in water. Therefore, the water content of the crude oil is harmless and beneficial. However, water is almost a permanent companion to crude oil in the development of oil fields, and particularly in the middle and later stages of development of oil fields, oil wells do not produce water and have no oil. Therefore, the dehydration of crude oil becomes an indispensable link in the development process of oil fields and is always paid attention by people.

However, when the existing petroleum is dehydrated, because the petroleum is mixed with a lot of impurities when being exploited at the bottom of the ground, the quality of crude oil dehydration is greatly reduced if the crude oil is not filtered, and the effect of the existing dehydration device is not good when the petroleum is dehydrated. Therefore, we propose a dewatering device for oil field gathering and transportation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil field collection is defeated with dewatering device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dehydration device for oil field gathering and transportation comprises a demulsification tank, wherein a filtering mechanism is fixedly connected to the upper end of the demulsification tank, the filtering mechanism comprises an oil inlet pipe, a groove and a filtering screen, the groove is positioned at the bottom of the oil inlet pipe, the upper end of the oil inlet pipe is communicated with an extension pipe, the interior of the oil inlet pipe is provided with the filtering screen which is obliquely arranged, one end of the filtering screen is arranged in the groove, the other end of the filtering screen is arranged in the extension pipe, the upper end of the extension pipe is detachably connected with a first sealing cover, the lower end of the oil inlet pipe is communicated with a sewage storage tank, one end of the sewage storage tank is detachably connected with a second sealing cover, one end of the oil inlet pipe is communicated with the demulsification tank, one side of the demulsification tank is communicated with an electric release tank through an oil pipe, the upper end of the oil pipe is, the electric stripping box is characterized in that an electrode net is fixedly connected to the inner wall of the electric stripping box, the other side of the demulsifying box is communicated with a first drain pipe, the lower end of the electric stripping box is communicated with a second drain pipe, one side of the electric stripping box is communicated with an oil outlet pipe, and the upper end of the first drain pipe, one side of the second drain pipe and the upper end of the oil outlet pipe are fixedly connected with valves.

Preferably, the four corners of the lower end surface of the demulsification box and the lower end surface of the electric demulsification box are fixedly connected with supporting legs.

Preferably, one side of the electric stripping box is fixedly connected with a controller, and the controller is respectively electrically connected with the circulating pump and the electrode net.

Preferably, the lower end of the filtering mechanism is provided with a support frame, and the support frame is fixedly connected with the oil inlet pipe.

Preferably, the upper ends of the demulsification box and the electric stripping box are detachably connected with box covers.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with filtering mechanism, filtering mechanism can filter the impurity in the oil, has improved the quality of oil dehydration.

2. The utility model discloses a be provided with breakdown of emulsion case and electric stripping box, when dehydrating crude oil, can separately dewater and adopt different dehydration mode to dewater to can dewater according to the crude oil state of difference, improve its dehydration effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the filtering mechanism of the present invention;

fig. 3 is a schematic view of the supporting frame of the present invention.

In the figure: 1 breakdown of emulsion case, No. 2 drain pipes, 3 valves, 4 support frames, 5 filter mechanisms, 6 chemical auxiliary agent add pipe, 7 controllers, 8 electrode net, 9 play oil pipe, 10 supporting legs, No. 11 drain pipes, 12 defeated oil pipe, 13 circulating pumps, 14 advance oil pipe, 15 filter screens, No. 16 sealed lids, 17 extension pipes, 18 store up dirty case, No. 19 sealed lids, 20 recesses, 21 electricity and take off the case.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the oil field gathering and transportation dewatering device comprises a demulsification tank 1, wherein a filtering mechanism 5 is fixedly connected to the upper end of the demulsification tank 1, the filtering mechanism 5 comprises an oil inlet pipe 14, a groove 20 and a filter screen 15, the groove 20 is positioned at the bottom of the oil inlet pipe 14, the upper end of the oil inlet pipe 14 is communicated with an extension pipe 17, the filter screen 15 which is obliquely arranged is arranged inside the oil inlet pipe 14, one end of the filter screen 15 is arranged in the groove 20, the other end of the filter screen 15 is arranged in the extension pipe 17, the upper end of the extension pipe 17 is detachably connected with a first sealing cover 16, the lower end of the oil inlet pipe 14 is communicated with a sewage storage tank 18, one end of the sewage storage tank 18 is detachably connected with a second sealing cover 19, one end of the oil inlet pipe 14 is communicated with the demulsification tank 1, one side of the demulsification tank 1 is communicated with an electro-release tank 21, defeated oil pipe 12 top is provided with chemical additive and adds pipe 6, chemical additive adds pipe 6 and 21 intercommunications of electricity slip flask, 21 inner wall fixedly connected with electrode net 8 of electricity slip flask, 1 opposite side intercommunication of breakdown of emulsion case has drain pipe 2 No. one, 21 lower extreme intercommunication of electricity slip flask has No. two

drain pipes

11, 21 one side intercommunication of electricity slip flask has out oil pipe 9, equal fixedly connected with valve 3 in drain pipe 2 upper end, No. two drain pipes 11 one side and the play oil pipe 9 upper end.

Furthermore, the four corners of the lower end surface of the demulsification tank 1 and the lower end surface of the electric release tank 21 are fixedly connected with supporting legs 10, and the supporting legs 10 enable the demulsification tank 1 and the electric release tank 21 to be well fixed on the ground.

Further, one side of the electric stripping box 21 is fixedly connected with a controller 7, the controller 7 is respectively electrically connected with the circulating pump 13 and the electrode net 8, and the controller 7 controls the circulating pump 13 and the electrode net 8 to normally work.

Furthermore, the lower end of the filtering mechanism 5 is provided with a support frame 4, and the support frame 4 is fixedly connected with the oil inlet pipe 14, so that the filtering mechanism 5 has good stability.

Furthermore, the upper ends of the demulsification tank 1 and the electric stripping tank 21 can be detachably connected with tank covers, so that the demulsification tank 1 and the electric stripping tank 21 can be conveniently overhauled.

Specifically, when in use, crude oil enters the demulsification tank 1 from the oil inlet pipe 14, the filter screen 15 in the oil inlet pipe 14 can filter impurities in the crude oil, the filtered impurities flow into the sewage storage tank 18, then the second sealing cover 19 is opened periodically to clean the impurities in the sewage storage tank 18, the filtered crude oil enters the demulsification tank 1, the emulsion breaking state is destroyed by adding the emulsion breaker into the emulsion breaking tank 1 through the chemical additive adding pipe 6, so that the oil and the water are separated into layers, the separated water is drained by a first water drainage pipe 2, the crude oil is pumped into an electric stripping box 21 by a circulating pump 13, when the controller 7 with the model number of KG316-T-8 is started, water drops of emulsion in the crude oil are deformed and coalesced under the action of an electric field to form large water drops which are separated from the oil, and finally, water in the crude oil is discharged from the second drain pipe 11, and the crude oil is discharged from the oil outlet pipe 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oil field gathering is defeated with dewatering device, includes breakdown of emulsion case (1), its characterized in that: the demulsification tank (1) is characterized in that a filtering mechanism (5) is fixedly connected to the upper end of the demulsification tank (1), the filtering mechanism (5) comprises an oil inlet pipe (14), a groove (20) and a filtering screen (15), the groove (20) is positioned at the bottom of the oil inlet pipe (14), the upper end of the oil inlet pipe (14) is communicated with an extension pipe (17), the filtering screen (15) which is obliquely arranged is arranged inside the oil inlet pipe (14), one end of the filtering screen (15) is arranged in the groove (20), the other end of the filtering screen (15) is arranged in the extension pipe (17), the upper end of the extension pipe (17) is detachably connected with a first sealing cover (16), the lower end of the oil inlet pipe (14) is communicated with a sewage storage tank (18), one end of the sewage storage tank (18) is detachably connected with a second sealing cover (19), one end of the oil inlet pipe (14) is communicated with the demulsification tank (1), one side of the, defeated oil pipe (12) upper end fixedly connected with circulating pump (13), defeated oil pipe (12) top is provided with chemical additive and adds pipe (6), chemical additive adds pipe (6) and takes off case (21) intercommunication, electricity takes off case (21) inner wall fixedly connected with electrode net (8), breakdown of emulsion case (1) opposite side intercommunication has drain pipe (2) No. one, electricity takes off case (21) lower extreme intercommunication has No. two drain pipes (11), electricity takes off case (21) one side intercommunication has oil pipe (9), equal fixedly connected with valve (3) in drain pipe (2) upper end, No. two drain pipes (11) one side and oil pipe (9) upper end.

2. The dewatering device for oil field gathering according to claim 1, characterized in that: the four corners of the lower end surfaces of the demulsification tank (1) and the electric de-emulsification tank (21) are fixedly connected with supporting legs (10).

3. The dewatering device for oil field gathering according to claim 1, characterized in that: one side of the electric stripping box (21) is fixedly connected with a controller (7), and the controller (7) is electrically connected with the circulating pump (13) and the electrode net (8) respectively.

4. The dewatering device for oil field gathering according to claim 1, characterized in that: the lower end of the filtering mechanism (5) is provided with a support frame (4), and the support frame (4) is fixedly connected with the oil inlet pipe (14).

5. The dewatering device for oil field gathering according to claim 1, characterized in that: the upper ends of the demulsification tank (1) and the electric stripping tank (21) can be detachably connected with tank covers.