Wellhead high-temperature fluid cooling device

Abstract

The utility model discloses a wellhead high-temperature fluid cooling device which comprises a shell. The first partition plates are arranged in the shell in parallel at intervals, and the upper ends and the lower ends of the first partition plates are fixedly connected to the top plate and the bottom plate of the shell correspondingly; the second partition plates are arranged in the shell in parallel at intervals, and the second partition plates and the first partition plates are arranged in a crossed mode; the upper end of the second partition plate is fixedly connected to the top plate of the shell, and a gap is formed between the lower end and the bottom plate of the shell; the plurality of third partition plates are arranged in the shell, are parallel to the second partition plates and are arranged at intervals; the lower end of the third partition plate is fixedly connected to the bottom plate of the shell, and a gap is formed between the upper end and the top plate of the shell; the petroleum flowing pipeline comprises multiple layers of pipeline units which are arranged at intervals in the height direction of the shell, and the pipeline units are reciprocating bending pipelines parallel to a bottom plate of the shell; the cooling water pipe is used for introducing cooling water into the shell; and the cooling water outflow pipe is used for discharging the cooling water after heat exchange in the shell.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum drilling and production technology, and specifically relates to a wellhead high-temperature fluid cooling device. Background Technology

[0002] With the increasing prevalence of high-temperature, high-pressure oil and gas fields, some blocks exhibit formation fluid temperatures exceeding 200 degrees Celsius, maintaining extremely high temperatures even after exiting the wellbore. Surface process lines (connecting equipment) are typically constructed of steel, and temperature significantly impacts the mechanical properties of the equipment and pipelines (such as yield strength, pressure resistance, and sealing performance). For high-temperature fluids, necessary measures must be taken to reduce the temperature at the wellhead to within the equipment's operating range, thereby ensuring the safety of downstream processes.

[0003] In existing technologies, heat exchangers are typically used in conjunction with high-temperature steam or electric heating to heat the fluids within the process flow during oil and gas development and production. This increases the fluid temperature, thereby improving fluid flowability or preventing the precipitation of petroleum waxes and the formation of natural gas hydrates. In other words, the heat exchangers used in existing oil and gas development and production processes are primarily designed for fluid heating, with the heat source being high-temperature steam (provided by a steam generator). They cannot play a significant role in fluid cooling. Furthermore, existing heat exchangers are installed in low-pressure sections and are relatively large, making them unsuitable for use in the confined and high-pressure environments of wellheads. Utility Model Content

[0004] The purpose of this invention is to provide a wellhead high-temperature fluid cooling device with a compact structure that can increase the heat exchange area while keeping the volume small, thereby improving the cooling efficiency of high-temperature fluids.

[0005] The technical solution provided by this utility model is as follows:

[0006] A wellhead high-temperature fluid cooling device, comprising:

[0007] case;

[0008] Multiple first partitions are arranged in parallel and spaced apart inside the housing, and the upper and lower ends of the first partitions are respectively fixedly connected to the top plate and the bottom plate of the housing.

[0009] Multiple second partitions are arranged parallel to each other within the housing, and the second partitions are arranged intersecting with the first partitions; the upper ends of the second partitions are fixedly connected to the top plate of the housing, and the lower ends are spaced apart from the bottom plate of the housing.

[0010] Multiple third partitions are disposed inside the housing, parallel to and spaced apart from the second partitions; the lower end of each third partition is fixedly connected to the bottom plate of the housing, and the upper end is spaced apart from the top plate of the housing.

[0011] An oil flow pipeline includes multiple layers of pipeline units spaced apart along the height of the shell; each pipeline unit is a reciprocating bend parallel to the bottom plate of the shell, and adjacent layers of pipeline units are connected end to end.

[0012] The oil flow pipeline passes through and is supported in the first, second, and third partitions that intersect with it; the inlet and outlet ends of the oil flow pipeline are located outside the housing.

[0013] A cooling water pipe for supplying cooling water into the housing, with the outlet of the cooling water pipe located near the top plate of the housing;

[0014] A cooling water outlet pipe is used to discharge the cooling water after heat exchange inside the housing. The inlet of the cooling water outlet pipe is located near the bottom plate of the housing and is located on the side opposite to the outlet of the cooling water pipe.

[0015] Preferably, the wellhead high-temperature fluid cooling device further includes:

[0016] A liquid level observation device is installed on the top plate of the housing. The liquid level observation device is equipped with a cover plate, and the liquid level inside the housing can be observed by opening the cover plate.

[0017] Preferably, the outer wall of the oil flow pipeline is provided with heat dissipation fins.

[0018] Preferably, the heat dissipation fins are spirally wound on the outer wall of the oil flow pipeline.

[0019] Preferably, the cooling water pipe has multiple outlets; the outlets of the cooling water pipe are arranged one-to-one between two adjacent first partitions and in the gap formed between the first partition and the inner wall of the shell, and are located near the top plate of the shell.

[0020] Preferably, the inlet of the cooling water pipe is located outside the housing and close to the bottom plate of the housing.

[0021] Preferably, the cooling water outlet pipe has multiple inlets; the inlets of the cooling water outlet pipe are arranged one-to-one between two adjacent first partitions and in the gap formed between the first partition and the inner wall of the shell, and are located close to the bottom plate of the shell.

[0022] Preferably, the outlet of the cooling water outlet pipe is located outside the housing and close to the bottom plate of the housing.

[0023] Preferably, the wellhead high-temperature fluid cooling device further includes:

[0024] A level gauge, which is fixedly mounted on the side plate of the housing, is used to detect the liquid level inside the housing.

[0025] Preferably, the top of the housing is provided with multiple lifting lugs, and the bottom is provided with forklift holes.

[0026] The beneficial effects of this utility model are:

[0027] The wellhead high-temperature fluid cooling device provided by this utility model has a compact structure and can increase the heat exchange area while keeping the volume small, thereby improving the cooling efficiency of high-temperature fluids. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the external structure of the wellhead high-temperature fluid cooling device described in this utility model.

[0029] Figure 2 This is a schematic diagram of the external structure of the cooling water outlet side of the wellhead high-temperature fluid cooling device described in this utility model.

[0030] Figure 3 This is a schematic diagram of the internal structure of the wellhead high-temperature fluid cooling device described in this utility model.

[0031] Figure 4 This is a schematic diagram of the internal structure of the cooling water inflow side of the wellhead high-temperature fluid cooling device described in this utility model.

[0032] Figure 5 This is a schematic diagram showing the flow direction of cooling water in the wellhead high-temperature fluid cooling device described in this utility model.

[0033] Figure 6 This is a schematic diagram of the liquid level observation device described in this utility model.

[0034] Figure 7 This is a schematic diagram of the structure of the oil flow pipeline described in this utility model.

[0035] Figure 8 This is a schematic diagram of the cooling water pipe described in this utility model.

[0036] Figure 9 This is a schematic diagram of the cooling water outlet pipe of this utility model.

[0037] Figure 10 This is a schematic diagram of the overall structure of the first partition, the second partition, and the third partition described in this utility model. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0039] like Figure 1-10 As shown, this utility model provides a wellhead high-temperature fluid cooling device, which mainly includes: a shell 110, a first partition 121, a second partition 122, a third partition 123, an oil flow pipeline 130, a cooling water pipe 140, a cooling water outlet pipe 150, a sewage pipe 160, and a liquid level observation device 170.

[0040] Multiple first partitions 121 are arranged parallel to each other within the housing 110, with their upper and lower ends fixedly connected to the top and bottom plates of the housing 110, respectively. Multiple second partitions 122 are arranged parallel to each other within the housing, and are arranged intersecting the first partitions 121; the upper end of each second partition 122 is fixedly connected to the top plate of the housing 110, and its lower end is spaced from the bottom plate of the housing 110. Multiple third partitions 123 are disposed within the housing 110, parallel to and spaced apart from the second partitions 122; the lower end of each third partition 123 is fixedly connected to the bottom plate of the housing 110, and its upper end is spaced from the top plate of the housing 110. The first partitions 121, second partitions 122, and third partitions 123 divide the inner cavity of the housing 110 into a grid structure.

[0041] In this embodiment, the housing 110 has a cuboid structure. The first partition 121 is arranged along the length direction of the cuboid, and the second partition 122 and the third partition 123 are both arranged along the width direction of the cuboid; that is, the second partition 122 and the third partition 123 are both perpendicular to the first partition 121.

[0042] The oil flow pipeline 130 includes multiple layers of pipeline units spaced apart along the height of the shell. Each pipeline unit is a reciprocating bend parallel to the bottom plate of the shell 110, and adjacent pipeline units are connected end-to-end; that is, the oil flow pipeline 130 is a continuous pipeline structure with only one inlet and one outlet. The oil flow pipeline 130 passes through and is supported by a first partition 121, a second partition 122, and a third partition 123 that intersect with it. The inlet end 131 and the outlet end 132 of the oil flow pipeline 130 are located outside the shell 110.

[0043] In this embodiment, the housing 110, the first partition 121, the second partition 122 and the third partition 123 are all made of metal, and the housing 110, the first partition 121, the second partition 122 and the third partition 123 are fixedly connected by welding.

[0044] A cooling water pipe 140 is used to introduce cooling water into the housing 110, and the outlet of the cooling water pipe 140 is located near the top plate of the housing. In this embodiment, the cooling water pipe 140 has one inlet 141 and multiple outlets 142. The outlets 142 of the cooling water pipe are correspondingly located in the gaps formed between two adjacent first partitions 121 and between the first partitions 121 and the inner wall of the housing 110, and are located near the top plate of the housing 110. The inlet 141 of the cooling water pipe is located outside the housing 110 and is located near the bottom plate of the housing 110. In this embodiment, the outlet 141 of the cooling water pipe is located near the inner wall of the housing 110 on the side parallel to the second partition 122, and the outlet of the cooling water pipe 140 is provided with an elbow so that the opening of the cooling water pipe 140 faces the bottom plate of the housing 110.

[0045] The cooling water outlet pipe 150 is used to discharge the cooling water after heat exchange inside the housing 110. In this embodiment, the cooling water outlet pipe 150 is provided with multiple inlets 151 and one outlet 152. The inlets 151 of the cooling water outlet pipe are located near the bottom plate of the housing 110 and near the inner wall of the housing 110 on the side opposite to the outlet of the cooling water pipe 140. The multiple cooling water outlet pipe inlets 151 are correspondingly located at the intervals formed between two adjacent first partitions 121 and between the first partition 121 and the inner wall of the housing 110, and are located near the bottom plate of the housing 110. The outlet 152 of the cooling water outlet pipe is located outside the housing and near the bottom plate of the housing 110. A butterfly valve 153 is provided near the outlet 152 of the cooling water outlet pipe 150, and the opening and closing of the cooling water outlet pipe can be controlled by the butterfly valve 153.

[0046] In this embodiment, the cooling water pipe 140 and the cooling water outlet pipe 150 pass through and are fixedly supported on the first partition 121, which further improves the stability of the cooling water pipe 140 and the cooling water outlet pipe 150.

[0047] The drain pipe 160 is located outside the housing 110 and near the bottom of the housing 110. The drain pipe 160 helps to drain the liquid inside the housing 110. A butterfly valve 161 is installed on the drain pipe 160. Under normal use, the butterfly valve 161 is in the closed state.

[0048] A liquid level observation device 170 is mounted on the top plate of the housing 110. A cover plate 171 is provided on the liquid level observation device 170, allowing observation of the liquid level inside the housing by opening the cover plate 171. In this embodiment, a handle 172 is provided on the cover plate 171 of the liquid level observation device for opening the cover plate 171. A connecting pipe 174 is provided on the vertical support plate 173 of the liquid level observation device 171, and a butterfly valve 175 is installed on the connecting pipe 174. A connector 176 is provided at the end of the connecting pipe 175. The cover plate 171 is connected to the fixing member 173a of the vertical support plate 173 by a pin 177 and a rotating screw 178. A wing nut 179 is installed at the upper end of the rotating screw 178 to fix the cover plate 171. Gas inside the housing 110 can be discharged through the connecting pipe 174, and an overflow pipe can also be connected to the connector 176 to prevent excessive pressure inside the housing 110.

[0049] As a preferred option, the outer wall of the oil flow pipeline 130 is provided with heat dissipation fins 133. By providing heat dissipation fins 133, the heat exchange area can be increased, and the cooling efficiency of high-temperature fluid can be further improved.

[0050] As a further preferred option, the heat dissipation fins 133 are spirally wound on the outer wall of the oil flow pipeline 130 to ensure uniform heat exchange.

[0051] Preferably, a support frame 134 is also fixedly provided inside the housing 110 between the adjacent second partition 122 and third partition 123 to support the oil flow pipeline 130 and improve the stability of the oil flow pipeline 130.

[0052] As a preferred embodiment, the wellhead high-temperature fluid cooling device is also equipped with a level gauge 180, which is fixedly installed on the side plate of the housing 110 for real-time detection of the liquid level inside the housing 110.

[0053] As a further preferred option, a ladder 190 is fixedly installed on the side wall of the housing 110 to facilitate liquid level observation or maintenance of the wellhead high-temperature fluid cooling device.

[0054] Lifting lugs 111 are provided at the four top corners of the housing 110, and forklift holes 112 are provided on the frame at the bottom of the housing 110 to facilitate the hoisting or transportation of the wellhead high-temperature fluid cooling device.

[0055] The working process of the wellhead high-temperature fluid cooling device is as follows: External high-temperature oil fluid is introduced into the oil flow pipeline 130 from the inlet end 131 and flows out through the outlet end 132. Cooling water is introduced into the cooling water pipe inlet 141 and flows into the casing 110 through the outlets 142 of multiple cooling water pipes, then flows along... Figure 5After passing through the gap between the second partition 122 and the bottom plate of the housing 110, the water flows upward through the gap between the third partition 123 and the top plate of the housing 110, and then circulates up and down repeatedly. During the flow, the cooling water and the high-temperature oil fluid in the oil flow pipeline 130 exchange heat, which reduces the temperature of the high-temperature oil fluid. Finally, the cooling water flows into the cooling outlet pipe 150 through the inlet 151 of the cooling outlet pipe and then flows out of the oil cooling device from the outlet 152 of the cooling outlet pipe.

[0056] The wellhead high-temperature fluid cooling device provided by this utility model solves the problem of overheating during the flow of oil fluids; the device has a compact structure, small size, light weight, and is convenient for on-site transportation and hoisting, and has significant economic value.

[0057] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A wellhead high temperature fluid cooling device, characterized by, The application relates to a cooling device for oil flow pipeline. The application comprises: a shell; a plurality of first partitions which are arranged in parallel and spaced apart in the shell, the upper end and the lower end of the first partitions being fixedly connected to the top plate and the bottom plate of the shell respectively; a plurality of second partitions which are arranged in parallel and spaced apart in the shell and cross the first partitions, the upper end of the second partitions being fixedly connected to the top plate of the shell, and the lower end being spaced apart from the bottom plate of the shell; a plurality of third partitions which are arranged in parallel and spaced apart with the second partitions in the shell, the lower end of the third partitions being fixedly connected to the bottom plate of the shell, and the upper end being spaced apart from the top plate of the shell; an oil flow pipeline which comprises a plurality of pipeline units arranged in layers and spaced apart along the height direction of the shell, the pipeline units being reciprocating and bent pipelines parallel to the bottom plate of the shell, and the adjacent two layers of pipeline units being connected end to end; wherein the oil flow pipeline passes through and is supported by the first partitions, the second partitions and the third partitions which cross the oil flow pipeline; the inlet end and the outlet end of the oil flow pipeline are located outside the shell; a cooling water pipe for feeding cooling water into the shell, the outlet of the cooling water pipe being arranged close to the top plate of the shell; 2. The wellhead high temperature fluid cooling device of claim 1, wherein, a cooling water outlet pipe for discharging the cooling water after heat exchange in the shell, the inlet of the cooling water outlet pipe being arranged close to the bottom plate of the shell and located on the side opposite to the outlet of the cooling water pipe. Further comprising:

3. The wellhead high-temperature fluid cooling device of claim 2, wherein, a liquid level observation device arranged on the top plate of the shell, the liquid level observation device being provided with a cover plate, and the liquid level in the shell can be observed by opening the cover plate.

4. The wellhead high-temperature fluid cooling device of claim 3, wherein, The outer wall of the oil flow pipeline is provided with heat dissipation fins.

5. A wellhead high temperature fluid cooling device according to claim 3 or 4, characterised in that, The heat dissipation fins are spirally wound on the outer wall of the oil flow pipeline.

6. The wellhead high-temperature fluid cooling device of claim 5, wherein, The cooling water pipe has a plurality of outlets; the outlets of the cooling water pipe are arranged one by one in the spaces formed between the adjacent two first partitions and between the first partitions and the inner wall of the shell, and are arranged close to the top plate of the shell.

7. The wellhead high-temperature fluid cooling device of claim 6, wherein, The inlet of the cooling water pipe is arranged outside the shell and close to the bottom plate of the shell.

8. The wellhead high-temperature fluid cooling device of claim 7, wherein, The cooling water outlet pipe has a plurality of inlets; the inlets of the cooling water outlet pipe are arranged one by one in the spaces formed between the adjacent two first partitions and between the first partitions and the inner wall of the shell, and are arranged close to the bottom plate of the shell.

9. The wellhead high-temperature fluid cooling device of claim 8, wherein, The outlet of the cooling water outlet pipe is arranged outside the shell and close to the bottom plate of the shell. Further comprising:

10. The wellhead high-temperature fluid cooling device of claim 9, wherein, a liquid level meter fixedly installed on the side plate of the shell for detecting the liquid level in the shell. The top of the shell is provided with a plurality of lifting lugs, and the bottom is provided with a forklift hole.

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