Efficient gas injection and oil displacement device for fractured-vuggy carbonate reservoir

Abstract

The utility model discloses an efficient gas injection oil displacement device for a fractured-vuggy carbonate reservoir, which is applied to the technical field of petroleum collection and comprises a transport vehicle, an oil displacement device body is fixedly mounted at the top of the transport vehicle, a positioning shell is welded on the rear side of the top of the transport vehicle, and three gas inlet valves are communicated with the rear side of the positioning shell. The top of the positioning shell communicates with an air outlet valve, and the top of the air outlet valve communicates with the oil displacement device body. When a user needs to dehydrate water vapor in natural gas, a worker discharges the natural gas into a positioning shell through an air inlet valve, after the natural gas in the positioning shell reaches a specified value, the user closes the air inlet valve and starts a fan, and the fan cools the surface of a water condensation plate through a cooling pipe in a cooling assembly; water vapor in the natural gas is condensed by the low temperature of the surface of the water condensation plate, and after the water vapor in the natural gas is completely condensed, a user opens the gas outlet valve, so that dehydration treatment on the natural gas is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of petroleum collection, in particular to a carbonate fracture-cave type oil reservoir efficient gas injection oil displacement device. BACKGROUND

[0002] The gas injection oil displacement device is a device for improving oilfield recovery rate, which injects natural gas into the oil reservoir to improve the flowability of the oil reservoir fluid, so that more crude oil is displaced to the production well to realize the increase of crude oil production.

[0003] The current gas injection oil displacement device cannot dehydrate the water vapor in the natural gas during use, which causes the water in the natural gas to erode the equipment during oil displacement, reduces the production efficiency, and cannot filter the impurities in the natural gas during use, which causes the unfiltered impurities to enter the oil reservoir during gas injection, causing the oil layer pore to be blocked and reducing the permeability of the oil layer. UTILITY MODEL CONTENTS

[0004] The utility model discloses a carbonate fracture-cave type oil reservoir efficient gas injection oil displacement device, which has the advantages of dehydrating the water vapor in the natural gas and filtering the impurities in the natural gas.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a carbonate fracture-cave type oil reservoir efficient gas injection oil displacement device, comprising a transport vehicle, the top of the transport vehicle is fixedly installed with a oil displacement device body, the rear side of the top of the transport vehicle is welded with a positioning shell, the rear side of the positioning shell is communicated with three gas inlet valves, the top of the positioning shell is communicated with a gas outlet valve, the top of the gas outlet valve is communicated with the oil displacement device body, the inner cavity of the positioning shell is slidably connected with a limiting shell on both sides, the inner cavity of the two limiting shells is slidably connected with a positioning frame on the opposite side, the opposite side of the two positioning frames is welded with two fans, the inner cavity of the positioning shell is slidably connected with a cooling assembly, the front side of the top of the transport vehicle is slidably connected with a positioning plate, the top of the positioning plate is communicated with a retaining shell one, the top of the retaining shell one is movably connected with a retaining shell two, the inner cavity of the retaining shell one is fixedly installed with a filter block, the top of the retaining shell two is communicated with the oil displacement device body, the opposite side of the surface of the retaining shell one and the retaining shell two is slidably connected with a clamping assembly, the top of the retaining shell two is fixedly installed with a retaining assembly.

[0006] The above technical scheme has the following beneficial effects: when the user needs to dehydrate the water vapor in the natural gas, the staff member pours the natural gas into the positioning shell through the air inlet valve, and when the natural gas in the positioning shell reaches a specified value, the user closes the air inlet valve and opens the air blower, so that the surface of the condensation plate is cooled by the cooling pipe in the cooling assembly, and the water vapor in the natural gas is condensed due to the low temperature of the surface of the condensation plate; when the water vapor in the natural gas is completely condensed, the user opens the air outlet valve, thereby completing the dehydration of the natural gas; when the user needs to filter the impurities in the natural gas through the oil displacement device body before gas injection, the user completes the clamping of the positioning plate and the transport vehicle, and then installs the fixed shell one and the fixed shell two through the clamping shell and the clamping strip in the clamping assembly, and then installs the fixed shell two and the oil displacement device body through the clamping ring in the clamping assembly, thereby completing the filtration of the impurities in the natural gas.

[0007] The utility model further sets up, two positioning shell opposite side between sliding connection has the limit support, two limit support opposite side all have filter screen.

[0008] The above technical scheme has the following beneficial effects: through the cooperation of the air blower and the cooling pipe, the dust in the positioning shell is filtered when the user dehydrates the natural gas, so that the dust does not contaminate the cooling pipe and affect the dehydration efficiency of the natural gas.

[0009] The utility model further sets up, the both sides of limit shell all are fixedly connected with the limit board, the surface of limit board and the inner chamber of positioning shell are connected.

[0010] The above technical scheme has the following beneficial effects: through the cooperation of the air blower and the cooling pipe, the dust in the positioning shell is filtered when the user dehydrates the natural gas, so that the dust does not contaminate the cooling pipe and affect the dehydration efficiency of the natural gas.

[0011] The utility model further sets up, cooling assembly includes ventilation shell, the inner chamber of ventilation shell is fixedly installed with cooling pipe, two ventilation shell opposite side between adhesion has condensation plate.

[0012] The above technical scheme has the following beneficial effects: through the cooperation of the air blower and the cooling pipe, the dust in the positioning shell is filtered when the user dehydrates the natural gas, so that the dust does not contaminate the cooling pipe and affect the dehydration efficiency of the natural gas.

[0013] The utility model further sets up, the inner chamber of positioning shell is set with positioning groove, the inner chamber of positioning groove and cooling assembly are connected.

[0014] Adopting the technical scheme, the position of the cooling assembly can be positioned when the user installs the cooling assembly, so that the position of the cooling assembly is prevented from deviating during use, and the dehydration treatment of the natural gas is affected.

[0015] The utility model further provides for, the clamping position component includes two clamping position shells, and the inner chamber of two clamping position shells is connected with the retaining shell one and retaining shell two sliding respectively, the surface sliding connection of clamping position shell has the clamping strip.

[0016] Adopting the technical scheme, the position of the cooling assembly can be positioned when the user installs the cooling assembly, so that the position of the cooling assembly is prevented from deviating during use, and the dehydration treatment of the natural gas is affected.

[0017] The utility model further provides for, the retaining assembly includes retaining ring, the left side swing joint of retaining ring top has two clamping rings, the surface sliding connection of clamping ring has retaining strip.

[0018] Adopting the technical scheme, the position of the cooling assembly can be positioned when the user installs the cooling assembly, so that the position of the cooling assembly is prevented from deviating during use, and the dehydration treatment of the natural gas is affected.

[0019] Summarized above, the utility model has following beneficial effect:

[0020] 1, when the user needs to carry out dehydration treatment to the water vapor in natural gas, at this time staff through the air inlet valve and natural gas is arranged into the positioning shell, when the natural gas in the positioning shell reaches the specified value, the user closes the air inlet valve and opens the fan, and the fan is cooled to the surface of the condensation plate through the cooling pipe in the cooling assembly, because the low temperature of the surface of the condensation plate condenses the water vapor in the natural gas, when the water vapor in the natural gas is completely condensed, the user opens the air outlet valve, thereby completing the dehydration treatment of natural gas;

[0021] 2, when the user needs to filter the impurities in natural gas through the oil displacement device body before injection, at this time, the user completes the clamping of the positioning plate and the transport vehicle, and installs the retaining shell one and retaining shell two through the clamping shell and clamping strip in the clamping position component, and installs the retaining shell two and the oil displacement device body through the clamping ring in the retaining assembly, thereby completing the filtration of the impurities in the natural gas. ACCURACY OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic view of the utility model;

[0023] Figure 2 It is the overall structure rear view of the utility model;

[0024] Figure 3 is a partial structure rear view split drawing of the utility model;

[0025] Figure 4 is a partial structure front view split drawing of the utility model.

[0026] Mark: 1, transport car; 2, oil displacement device body; 3, positioning shell; 4, inlet valve; 5, outlet valve; 6, limiting shell; 7, positioning frame; 8, fan; 9, cooling assembly; 901, ventilation shell; 902, cooling pipe; 10, positioning plate; 11, retaining shell one; 12, retaining shell two; 13, filter block; 14, clamping assembly; 1401, clamping shell; 1402, clamping strip; 15, retaining assembly; 1501, retaining ring; 1502, clamping ring; 1503, retaining strip; 16, limiting frame; 17, filter screen; 18, limiting plate; 19, positioning groove. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in connection with the drawings.

[0028] Example 1:

[0029] Reference Figures 1-4 A kind of carbonate fractured-vuggy reservoir high-efficiency gas injection oil displacement device, including transport car 1, the top of transport car 1 is fixedly installed with oil displacement device body 2, the rear side of the top of transport car 1 is welded with positioning shell 3, the rear side of positioning shell 3 is communicated with three inlet valves 4, the top of positioning shell 3 is communicated with outlet valve 5, the top of outlet valve 5 is communicated with oil displacement device body 2, the two sides in the cavity of positioning shell 3 are slidably connected with limiting shell 6, the opposite side in the cavity of two limiting shells 6 is slidably connected with positioning frame 7, the opposite side of two positioning frames 7 is welded with two fans 8, the cavity of positioning shell 3 is slidably connected with cooling assembly 9.

[0030] Further, limiting frame 16 is slidably connected between the opposite sides of two positioning shells 3, and filter screen 17 is adhered to the opposite sides of two limiting frames 16.

[0031] Further, limiting plate 18 is fixedly connected to the two sides of limiting shell 6, and the surface of limiting plate 18 is slidably connected with the cavity of positioning shell 3.

[0032] Further, cooling assembly 9 includes ventilation shell 901, cooling pipe 902 is fixedly installed in the cavity of ventilation shell 901, and condensation plate 903 is adhered between the opposite sides of two ventilation shells 901.

[0033] Further, positioning groove 19 is arranged in the cavity of positioning shell 3, and the cavity of positioning groove 19 is slidably connected with cooling assembly 9.

[0034] Brief use: when the user needs to dehydrate the water vapor in the natural gas, at this time the staff through the gas inlet valve 4 into the positioning shell 3, when the natural gas in the positioning shell 3 reaches the specified value, the user closes the air inlet valve 4 and opens the fan 8, the fan 8 through the cooling pipe 902 in the cooling assembly 9 to the surface of the condensation plate 903 for cooling, because the low temperature of the surface of the condensation plate 903 will condense the water vapor in the natural gas, when the water vapor in the natural gas is completely condensed, the user opens the air outlet valve 5, thereby completing the dehydration of the natural gas, by setting the limiting frame 16 and the filter screen 17, when the user uses the fan 8 and the cooling pipe 902 to dehydrate the natural gas, the dust in the limiting shell 6 is filtered, avoiding the dust from affecting the dehydration efficiency of the natural gas, by setting the limiting plate 18, the user can conveniently install and disassemble the limiting shell 6 and the positioning shell 3, facilitating the user to clean and maintain the limiting shell 6 after use, by setting the ventilation shell 901, the cooling pipe 902 and the condensation plate 903 in the cooling assembly 9, the water vapor entering the positioning shell 3 can be quickly condensed by the fan 8, facilitating the user to dehydrate the natural gas, by setting the positioning groove 19, the position of the cooling assembly 9 can be positioned when the user installs the cooling assembly 9, preventing the position of the cooling assembly 9 from deviating during use, affecting the dehydration of the natural gas.

[0035] Embodiment 2:

[0036] Reference Figure 1 、 Figure 2 and Figure 3 , a high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs, comprising a positioning plate 10 slidably connected to the front side of the top of a transport vehicle 1, a fixed shell one 11 communicated with the top of the positioning plate 10, a fixed shell two 12 movably connected to the top of the fixed shell one 11, a filter block 13 fixedly installed in the inner cavity of the fixed shell one 11, a fixed shell two 12 communicated with the oil displacement device body 2, a clamping assembly 14 slidably connected to the opposite side of the surface of the fixed shell one 11 and the fixed shell two 12, and a fixing assembly 15 fixedly installed on the top of the fixed shell two 12.

[0037] Further, the clamping assembly 14 comprises two clamping shells 1401, the inner cavities of the two clamping shells 1401 are respectively slidably connected with the fixed shell one 11 and the fixed shell two 12, and the surface of the clamping shell 1401 is slidably connected with a clamping strip 1402.

[0038] Further, the fixing assembly 15 comprises a fixing ring 1501, two clamping rings 1502 movably connected to the left side of the top of the fixing ring 1501, and a fixing strip 1503 slidably connected to the surface of the clamping ring 1502.

[0039] Brief description of use: when the user needs to filter the impurities in the natural gas before the gas injection through the oil displacement device body 2, at this time, the user will complete the clamping of the positioning plate 10 and the transport vehicle 1, then complete the installation of the fixed shell one 11 and the fixed shell two 12 through the clamping shell 1401 and the clamping strip 1402 in the clamping assembly 14, at the same time, complete the installation of the fixed shell two 12 and the oil displacement device body 2 through the clamping ring 1502 in the fixed assembly 15, then complete the filtering of the impurities in the natural gas, by setting the clamping shell 1401 and the clamping strip 1402 in the clamping assembly 14, it is convenient for the user to install the fixed shell one 11 and the fixed shell two 12, so that the user can filter the impurities in the gas through the filter block 13, by setting the clamping ring 1501, the clamping ring 1502 and the fixed strip 1503 in the fixed assembly 15, it is convenient for the user to install the fixed shell one 11 and the fixed shell two 12 after installation and the oil displacement device body 2, it is convenient to filter the impurities in the natural gas by using the filter block 13.

[0040] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A high-efficiency gas injection oil displacement device for carbonate fracture-cave type oil reservoirs, comprising a transport vehicle (1), characterized in that: The top of the transport vehicle (1) is fixedly provided with an oil removal device body (2), the rear side of the top of the transport vehicle (1) is welded with a positioning shell (3), the rear side of the positioning shell (3) is communicated with three air inlet valves (4), the top of the positioning shell (3) is communicated with an air outlet valve (5), the top of the air outlet valve (5) is communicated with the oil removal device body (2), the inner cavity of the positioning shell (3) is slidably connected with two limiting shells (6), the inner cavities of the two limiting shells (6) are slidably connected with positioning racks (7) on the opposite sides, the opposite sides of the two positioning racks (7) are welded with two fans (8), the inner cavity of the positioning shell (3) is slidably connected with a cooling assembly (9), the front side of the top of the transport vehicle (1) is slidably connected with a positioning plate (10), the top of the positioning plate (10) is communicated with a first retaining shell (11), the first retaining shell (11) is movably connected with a second retaining shell (12), the inner cavity of the first retaining shell (11) is fixedly provided with a filter block (13), the top of the second retaining shell (12) is communicated with the oil removal device body (2), the opposite sides of the surfaces of the first retaining shell (11) and the second retaining shell (12) are slidably connected with a clamping assembly (14), and the top of the second retaining shell (12) is fixedly provided with a retaining assembly (15).

2. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The opposite sides of the two positioning shells (3) are slidably connected with limiting racks (16), and the opposite sides of the two limiting racks (16) are adhered with filter screens (17).

3. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The opposite sides of the limiting shell (6) are fixedly connected with limiting plates (18), and the surface of the limiting plate (18) is slidably connected with the inner cavity of the positioning shell (3).

4. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The cooling assembly (9) comprises ventilation shells (901), and the inner cavities of the ventilation shells (901) are fixedly provided with cooling pipes (902).

5. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The inner cavity of the positioning shell (3) is provided with a positioning groove (19), and the inner cavity of the positioning groove (19) is slidably connected with the cooling assembly (9).

6. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The clamping assembly (14) comprises two clamping shells (1401), the inner cavities of the two clamping shells (1401) are respectively slidably connected with the first retaining shell (11) and the second retaining shell (12), and the surface of the clamping shell (1401) is slidably connected with a clamping strip (1402).

7. The high-efficiency gas injection oil displacement device for carbonate fracture-cave type reservoirs according to claim 1, characterized in that: The retaining assembly (15) comprises a retaining ring (1501), two clamping rings (1502) are movably connected to the left side of the top of the retaining ring (1501), and the surface of the clamping ring (1502) is slidably connected with a retaining strip (1503).

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