Oil-displacing agent injection device for low-permeability reservoir development

Abstract

The utility model discloses an oil displacement agent injection device for low permeability reservoir development, which comprises an injection mechanism and a cleaning mechanism, the injection mechanism comprises an oil tank, an injection pump suspended at the top of the oil tank and communicated with the inside of the oil tank, an injection pipe connected and communicated with the injection pump, and the cleaning mechanism, the cleaning mechanism comprises a pipe sleeve movably connected to the outer side of the injection pipe in a sleeving mode and a plurality of plate bodies movably installed on the two sides of the pipe sleeve. According to the oil displacement agent injection device, the oil tank is easily moved to a designated position, after the injection pump is started, an oil displacement agent in the oil tank is extracted and sprayed out through the injection pipe, after the injection pump is closed, a worker can move the pipe sleeve along the inner end of the injection pipe, and then under the action of the torsion spring, the plate body drives the compression roller to be tightly attached to the injection pipe; and then the two compression rollers extrude each other to extrude out the residual oil displacement agent in the injection pipe bit by bit, so that complete injection is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plating layer technical field, concretely is a kind of for low permeability oil reservoir development with oil displacement agent injection device. BACKGROUND

[0002] Oil displacement agent, an aid used to improve oil recovery when oil drilling is exploited. Commonly used is polymer type oil displacement agent. Such as ultra-high molecular weight polyacrylamide, 0.05% aqueous solution can penetrate into oil layer interstice and more oil 20%~30%, about every 1kg oil displacement agent can more crude oil 10 barrels (1590L).

[0003] The application number CN202320646078.5 discloses an oil displacement agent injection device, and belongs to the technical field of injection devices, comprising a support plate and other structures. The utility model discloses a mounting plate, an injection pipe, a vertical plate, a telescopic air cylinder and a transmission assembly can be used to adjust the height of the injection pipe quickly, and can adjust the horizontal position of the injection pipe reasonably, which facilitates the injection of oil displacement agent at different positions. When the application is used, oil displacement agent will remain in the connecting pipe hose regardless of when the injection pump stops working, which leads to incomplete injection. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in prior art or related art.

[0005] To this end, the utility model adopts the technical scheme that

[0006] An oil displacement agent injection device for low permeability oil reservoir development includes an injection mechanism and a cleaning mechanism. The injection mechanism includes an oil tank, an injection pump suspended on the top of the oil tank and communicating with the inside of the oil tank, and an injection pipe connected with the injection pump. The cleaning mechanism includes a pipe sleeve movably sleeved on the outside of the injection pipe, a plurality of plate bodies movably installed on both sides of the pipe sleeve, a torsion spring connected between the pipe sleeve and the plate bodies, and a press roller attached to the outer wall of the injection pipe and movably connected between the two plate bodies.

[0007] By adopting the above technical scheme, the oil tank can be easily moved to the designated position, and then the oil displacement agent in the oil tank is extracted after the injection pump is started, and then sprayed out through the injection pipe. After the injection pump is turned off, the staff can move the pipe sleeve along the inner end of the injection pipe, and then the plate bodies with the press rollers are tightly attached to the injection pipe under the action of the torsion spring. Then the two press rollers are pressed against each other, and the residual oil displacement agent in the injection pipe is squeezed out little by little, thereby achieving complete injection.

[0008] The utility model discloses in a preferable example can be further configured as: the pipe cover is constituted by a hollow cylinder and four short shafts, four short shafts are installed on both sides of the hollow cylinder respectively, the plate body, torsional spring are all active sleeve connection in the short shaft outside.

[0009] The utility model discloses in a preferable example can be further configured as: a plurality of plate bodies are in two groups, are provided with two groups, and two groups of plate bodies are located before and after injection pipe.

[0010] The utility model discloses in a preferable example can be further configured as: the compression roller is provided with two, and the compression roller is made of rubber material.

[0011] The utility model discloses in a preferable example can be further configured as: the oil tank bottom is installed the push -and -pull car.

[0012] The utility model discloses in a preferable example can be further configured as: the push -and -pull car one side is installed the transverse board, and the injection pump bottom and transverse board top fixed connection.

[0013] The utility model discloses in a preferable example can be further configured as: the transverse board top is equipped with the frame, and the frame is fixedly connected with the push -and -pull car, and the injection pipe outer end is movably connected with the frame.

[0014] Through adopting the above technical scheme, the utility model discloses the obtained beneficial effect is:

[0015] In the utility model, the oil tank is moved to the specified position easily, then the oil displacement agent in the oil tank is extracted after the injection pump starts, and then is sprayed through the injection pipe, and then the staff can move the pipe cover along the inner end of the injection pipe after the injection pump is closed, and then the plate body tightly sticks to the injection pipe under the action of the torsional spring with the compression roller, and then the two compression rollers extrude each other, and the residual oil displacement agent in the injection pipe is extruded little by little, so that complete injection is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure perspective drawing of the utility model;

[0017] Figure 2 It is the injection mechanism schematic view of the utility model;

[0018] Figure 3 It is the A department structure enlarged view of the utility model Figure 1 .

[0019] Figure 4 It is the connection relation schematic view of the push -and -pull car, the transverse board and the frame of the utility model.

[0020] REFERENCE NUMERALS:

[0021] 100, injection mechanism; 110, oil tank; 120, injection pump; 130, injection pipe;

[0022] 200, cleaning mechanism; 210, pipe sleeve; 220, plate body; 230, torsion spring; 240, compression roller;

[0023] 300, push-pull vehicle;

[0024] 400, cross plate;

[0025] 500, frame. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] It is understood that the above description is only exemplary and is not intended to limit the scope of the present application.

[0028] Some embodiments of the present application provide an oil displacement agent injection device for low-permeability oil reservoir development.

[0029] Embodiment one:

[0030] In combination with Figures 1-4 The present application provides an oil displacement agent injection device for low-permeability oil reservoir development, which comprises an injection mechanism 100 and a cleaning mechanism 200. The injection mechanism 100 comprises an oil tank 110, an injection pump 120 suspended on the top of the oil tank 110 and communicating with the inside of the oil tank 110, and an injection pipe 130 connected with the injection pump 120 and communicating therewith.

[0031] The cleaning mechanism 200 comprises a pipe sleeve 210 movably sleeved on the outside of the injection pipe 130, a plurality of plate bodies 220 movably installed on both sides of the pipe sleeve 210, a torsion spring 230 connected between the pipe sleeve 210 and the plate bodies 220, and a compression roller 240 abutting the outer wall of the injection pipe 130 and movably connected between the two plate bodies 220.

[0032] Further, the plurality of plate bodies 220 are arranged in two groups, and the two groups of plate bodies 220 are respectively located on the front and rear sides of the injection pipe 130. The layout design of the plate bodies 220 provides conditions for the two compression rollers 240 to clamp the injection pipe 130.

[0033] Further, the compression roller 240 is made of rubber material, and the compression roller 240 made of rubber material will not cause damage to the injection pipe 130 when extruding the injection pipe 130.

[0034] Embodiment two:

[0035] In combination Figure 1 As shown in the embodiment, on the basis of the embodiment, the sleeve 210 is composed of a hollow cylinder and four short shafts, the four short shafts are respectively installed on both sides of the hollow cylinder, the plate body 220 and the torsion spring 230 are movably sleeved on the outside of the short shaft, the structural design of the sleeve 210 can support the plate body 220 and prevent the torsion spring 230 from deforming, thereby guaranteeing the service life of the torsion spring 230.

[0036] Embodiment three:

[0037] In combination Figure 1 As shown in the embodiment, in the above embodiment, the oil tank 110 is provided with the push-pull cart 300, the push-pull cart 300 is arranged to facilitate the staff to pull the oil tank 110 and improve the use comfort of the device.

[0038] Further, one side of the push-pull cart 300 is provided with the horizontal plate 400, the bottom of the injection pump 120 is fixedly connected with the top of the horizontal plate 400, the horizontal plate 400 is arranged to provide conditions for fixing the injection pump 120 and improve the installation firmness of the injection pump 120.

[0039] Further, the top of the horizontal plate 400 is provided with the bracket 500, the bracket 500 is fixedly connected with the push-pull cart 300, and the outer end of the injection pipe 130 is movably connected with the bracket 500, the bracket 500 is arranged to limit the injection pipe 130 and prevent the injection pipe 130 from being scattered.

[0040] The working principle and use process of the device are as follows: when the device is actually used, the staff can pull the push-pull cart 300 to easily move the oil tank 110 to a specified position, then the injection pump 120 is started, the oil displacement agent in the oil tank 110 is extracted, and then sprayed out through the injection pipe 130, after the injection pump 120 is closed, the staff can move the sleeve 210 along the inner end of the injection pipe 130, then the plate body 220 tightly adheres to the injection pipe 130 under the action of the torsion spring 230 and the pressure roller 240, then the two pressure rollers 240 are extruded, and the residual oil displacement agent in the injection pipe 130 is extruded little by little, thereby realizing complete injection.

[0041] Although the embodiments of the device have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the device, the scope of the device is defined by the claims and their equivalents.

Claims

1. An injection device for a flooding agent for the development of a low permeability reservoir, characterized in that, Include: Injection mechanism (100), the injection mechanism (100) includes oil tank (110), the injection pump (120) suspended in the top of the oil tank (110) and communicated with the inside of the oil tank (110), the injection pipe (130) connected with the injection pump (120) and communicated; Cleaning mechanism (200), the cleaning mechanism (200) includes pipe sleeve (210) movably sleeved outside the injection pipe (130), a plurality of plate bodies (220) movably installed on both sides of the pipe sleeve (210), torsion spring (230) connected between the pipe sleeve (210) and the plate body (220), and the pressing roller (240) is attached to the outer wall of the injection pipe (130) and is movably connected between the two plate bodies (220).

2. The injection device for the oil displacement agent for the development of the low permeability reservoir according to claim 1, characterized in that, The pipe sleeve (210) is composed of a hollow cylinder and four short shafts, and the four short shafts are respectively installed on both sides of the hollow cylinder, and the plate body (220) and the torsion spring (230) are movably sleeved outside the short shaft.

3. A flooding agent injection device for the development of low permeability reservoirs according to claim 1, characterized in that, A plurality of plate bodies (220) are set in two groups, and two groups of plate bodies (220) are respectively located on the front and rear sides of the injection pipe (130).

4. The oil displacement agent injection device for the development of low permeability reservoirs according to claim 1, characterized in that, The pressing roller (240) is made of rubber material.

5. The injection device for the displacement agent for the development of low permeability reservoirs according to claim 1, characterized in that, The oil tank (110) is provided with a push-pull car (300) at the bottom.

6. A flooding agent injection device for the development of low permeability reservoirs according to claim 5, characterized in that, One side of the push-pull car (300) is provided with a horizontal plate (400), and the bottom of the injection pump (120) is fixedly connected with the top of the horizontal plate (400).

7. A flooding agent injection device for the development of low permeability reservoirs according to claim 6, characterized in that, The top of the horizontal plate (400) is provided with a bracket (500), the bracket (500) is fixedly connected with the push-pull car (300), and the outer end of the injection pipe (130) is movably connected with the bracket (500).

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