Shale oil dehydration transition layer flocculate removing device

Abstract

The utility model relates to the technical field of shale oil, in particular to a shale oil dehydration transition layer flocculate removing device which comprises a cavity, a flocculate collecting pipe is arranged on the cavity and connected with a central communicating pipe, the central communicating pipe is connected with a central collecting header pipe through a central tee joint, a flocculate outlet is formed in the cavity, and the flocculate collecting header pipe is connected with a central collecting header pipe through a central tee joint. A flocculate inlet is formed in the flocculate collecting pipe, an angle-shaped pipe support is arranged on the flocculate collecting pipe, and a door-shaped pipe support is arranged on the central communicating pipe. By arranging the flocculate collecting pipe, the central communicating pipe and the central collecting header pipe, flocculate can be discharged by means of gravitational potential energy.

Description

Technical Field

[0001] The utility model relates to the field of shale oil equipment, in particular to a shale oil dehydration transition layer deflocculation device. Background Art

[0002] Shale oil is a kind of petroleum resource with a stable form and high emulsification degree in the process of oil field production. It is very difficult to dehydrate it with traditional technology. In addition, the aggregates produced during the demulsification and dehydration of shale oil will form a "transition layer" that is like oil but not oil suspended above the water layer and below the oil layer. When the electric dehydration process is used, floccules will appear in the transition layer. The appearance of such floccules is related to the development method of the oil field. The floccules are mainly polymers or aged oil contained in the oil fracturing fluid. The presence of floccules will cause the shale oil to fail to be dehydrated, and because the floccules are conductive, it is very easy to "collapse the electric field".

[0003] The existing technology has the problem of flocculants in the transition layer, which may lead to the problem of "electric field collapse" and unqualified shale oil dehydration.

[0004] Therefore, it is necessary to propose an improvement to overcome the defects of the prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the presence of flocculants in the shale oil dehydration transition layer leads to "electric field collapse" and unqualified shale oil dehydration. The technical solution of the utility model provides a shale oil dehydration transition layer deflocculation device, including a cavity, characterized in that: a flocculant collecting pipe is provided in the cavity, a flocculant inlet is provided on the flocculant collecting pipe, the flocculant collecting pipe is connected to a central connecting pipe, the central connecting pipe is connected to a central collecting pipe through a central tee, and a flocculant outlet is provided at the connection between the central collecting pipe and the cavity.

[0006] As a preferred technical solution, the cavity is provided with angle tube supports and gate tube supports, which can make the angle tube supports and gate tube supports play a more stable supporting role.

[0007] As a preferred technical solution, the angled tube support is connected to the flocculant collecting tube, and can support and stabilize the flocculant collecting tube.

[0008] As a preferred technical solution, the gate-shaped tube support is connected to the central connecting tube, which can support and stabilize the central connecting tube.

[0009] As a preferred technical solution, the central tee is provided with three interfaces; the three interfaces are respectively connected to the central collecting pipe and the two central connecting pipes.

[0010] The beneficial effects of the utility model are as follows: the utility model provides a shale oil dehydration transition layer deflocculation device, which, by setting a flocculant collecting pipe and a central collecting pipe, allows the flocculants in the electric dehydrator cavity to be collected into the central collecting pipe through the flocculant collecting pipe and the central connecting pipe, and the flocculants are finally discharged at the flocculant outlet after being collected. After the influence of the flocculants is removed from the oil-water interface of the electric dehydration cavity during the entire process, the electric field is established more stably and will not collapse, thereby making the electric dehydration of crude oil more stable and ensuring that the crude oil export indicators are qualified. In the entire process, the flocculants are discharged by gravity potential energy throughout the entire process, and the flocculants can be discharged by opening the outlet without energy consumption, and the stability of the electric field is improved, the efficiency of crude oil dehydration is improved, and a better dehydration effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0012] Figure 2 It is a cross-sectional view of the first embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of the angle tube support of the first embodiment of the utility model;

[0014] Figure 4 This is a schematic diagram of a gate-shaped tube support according to Embodiment 1 of the present utility model;

[0015] Figure 5 This is a schematic diagram of the central three-way connection of the first embodiment of the utility model.

[0016] Among them, 1-cavity, 2-angle tube support, 3-floc collecting tube, 4-door tube support, 5-central connecting tube, 6-central collecting tube, 7-floc outlet, 8-floc inlet, 9-central tee, 10-limiting tube. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] As attached Figure 1 To Attachment Figure 4 As shown, a shale oil dehydration transition layer deflocculation device comprises a cavity 1, the cavity 1 is provided with a flocculant outlet 7 and a flocculant collecting pipe 3, the flocculant collecting pipe 3 is connected to a central connecting pipe 5, the central connecting pipe 5 is connected to a central collecting pipe 6 through a central tee 9, the flocculant collecting pipe 3 is provided with a notch, i.e., a flocculant inlet 8, the cavity 1 is provided with an angle pipe support 2 and a gate pipe support 4, each of the angle pipe support 2 and the gate pipe support 4 is provided with a limiting pipe 10, the angle pipe support 2 and the gate pipe support 4 are provided with a limiting pipe 10, The tube support 4 and the limiting tube 10 are both connected by bolts. The flocculant collecting tube 3 is fixed between the angle tube support 2 and the corresponding limiting tube 10. The central connecting tube 5 is connected to the gate-shaped tube support 4. The flocculants are collected into the flocculant collecting tube 3 through the flocculant inlet 8. The flocculants are transported from the flocculant collecting tube 3 through the central connecting tube 5 and the central tee 9 to the central collecting tube 6. The central collecting tube 6 is connected to the cavity 1 with a flocculant outlet 7, and are finally discharged from the flocculant outlet 7 below the central collecting tube 6.

[0021] The central connecting pipe 5 is fixed between the gate-shaped pipe support 4 and the corresponding limiting pipe 10. The central tee 9 is provided with a first interface 91, a second interface 92 and a third interface 93; the first interface 91 is arranged opposite to the second interface 92, and the third interface 93 is arranged perpendicular to the first interface 91 and the second interface 92; the first interface 91 and the second interface 92 are threadedly connected to the central connecting pipe 5, and the third interface 93 is threadedly connected to the central collecting pipe 6.

[0022] Working principle: The utility model provides a shale oil dehydration transition layer deflocculation device. When floccules appear in the cavity 1, the floccules are collected evenly and steadily to the floccules collecting pipe 3 through the floccules inlets 8 on both sides of the cavity 1. The floccules enter the central collecting pipe 6 through the central connecting pipe 5 and the central tee 9, and finally gather near the floccules outlet 7. The floccules can be discharged by opening the floccules outlet 7. In the whole process, the floccules are discharged by gravity potential energy without energy consumption.

[0023] After the oil-water transition layer in the electric dehydration chamber eliminates the influence of flocculants, the electric field is established more stably and the "electric field collapse" phenomenon will not occur, thereby making the crude oil electric dehydration more stable, ensuring that the crude oil outlet water content index is qualified, improving the crude oil dehydration efficiency, and achieving better dehydration effect.

[0024] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A shale oil dehydration transition layer deflocculation device, comprising a cavity (1), characterized in that: A flocculant collecting pipe (3) is provided in the cavity (1), a flocculant inlet (8) is provided on the flocculant collecting pipe (3), the flocculant collecting pipe (3) is connected to a central connecting pipe (5), the central connecting pipe (5) is connected to a central collecting pipe (6) via a central tee (9), and a flocculant outlet (7) is provided at the connection between the central collecting pipe (6) and the cavity (1).

2. A shale oil dehydration transition layer deflocculation device according to claim 1, characterized in that: The cavity (1) is provided with an angle tube support (2) and a gate tube support (4), each of the angle tube support (2) and the gate tube support (4) is provided with a limiting tube (10), and the angle tube support (2) and the gate tube support (4) are connected to the limiting tube (10) by bolts.

3. A shale oil dehydration transition layer deflocculation device according to claim 2, characterized in that: The flocculant collecting tube (3) is fixed between the angle tube support (2) and the corresponding limiting tube (10).

4. A shale oil dehydration transition layer deflocculation device according to claim 2, characterized in that: The central connecting pipe (5) is fixed between the gate-shaped pipe support (4) and the corresponding limiting pipe (10).

5. The shale oil dehydration transition layer deflocculation device according to claim 1, characterized in that: The central tee (9) is provided with a first interface (91), a second interface (92) and a third interface (93).

6. A shale oil dehydration transition layer deflocculation device according to claim 5, characterized in that: The first interface (91) and the second interface (92) are arranged opposite to each other, and the third interface (93) is arranged perpendicular to the first interface (91) and the second interface (92).

7. A shale oil dehydration transition layer deflocculation device according to claim 6, characterized in that: The first interface (91) and the second interface (92) are threadedly connected to the central connecting pipe (5), and the third interface (93) is threadedly connected to the central collecting pipe (6).

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