Heating separator integrated module

Abstract

The utility model discloses an integrated module of a heating separator. The integrated module comprises a separator, the heater is fixedly arranged above the separator; the heater includes: a first housing; the multiple first mixed fluid pipes are arranged in the first shell in the axial direction of the first shell; a mixed fluid inlet is formed in one end of the first shell; the second shell and the first shell are arranged in parallel; the second mixed fluid pipes are arranged in the second shell in the axial direction of the second shell; a mixed fluid outlet is formed in one end of the second shell; one end of the mixed fluid connecting pipe is connected with the other end of the first shell, and the mixed fluid connecting pipe is communicated with the plurality of first mixed fluid pipes; the other end of the first mixing fluid pipe is connected with the other end of the second shell and communicated with a plurality of second mixing fluid pipes; the mixed fluid outlet is communicated with an inlet of the separator through a pipeline; the two ends of the steam connecting pipe communicate with the first shell and the second shell correspondingly; wherein the second shell is provided with a steam inlet, and the first shell is provided with a condensate drain port.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum drilling and production technology, and specifically relates to an integrated module of fluid medium heating separator for onshore and offshore oil and gas exploration and testing operations. Background Technology

[0002] Currently, in offshore oil and gas testing processes, the mixed fluid is usually heated before entering the separator to increase its temperature and reduce the viscosity of crude oil, thus creating favorable conditions for oil and gas separation. However, the current heating method using 3-inch coils and steam heat transfer has disadvantages such as low heating efficiency and large footprint, occupying a large deck area and hindering offshore platform testing operations.

[0003] In offshore oil and gas testing processes, separators are usually used in conjunction with heaters. However, separators and heaters are two separate pieces of equipment. During the test preparation phase, they need to be hoisted, placed, and then manually connected, which wastes a lot of manpower and time. The preparation time is long and cannot meet the customer's demand for rapid operation response. Utility Model Content

[0004] The purpose of this invention is to provide an integrated heating and separator module that combines the heater and separator into a single module. By improving the heater structure, it can enhance heating efficiency and reduce steam consumption.

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

[0006] An integrated heating separator module includes:

[0007] Separator;

[0008] A heater, which is fixedly mounted above the separator;

[0009] The heater includes:

[0010] First shell;

[0011] A plurality of first mixing fluid tubes are disposed within the first housing along the axial direction of the first housing;

[0012] The first housing has a mixing fluid inlet at one end, and the mixing fluid inlet is connected to the plurality of first mixing fluid pipes;

[0013] The second housing is arranged parallel to the first housing;

[0014] Multiple second mixing fluid tubes are arranged axially within the second housing;

[0015] The second housing has a mixing fluid outlet at one end, which is connected to the plurality of second mixing fluid pipes;

[0016] A mixing fluid connecting pipe, one end of which is connected to the other end of the first housing and communicates with a plurality of first mixing fluid pipes; the other end of which is connected to the other end of the second housing and communicates with a plurality of second mixing fluid pipes;

[0017] The mixing fluid connecting pipe, together with the first housing and the second housing, forms a U-shaped structure; the mixing fluid outlet is connected to the inlet of the separator via a pipeline.

[0018] A steam connection pipe is provided, with its two ends connected to the first housing and the second housing respectively, and the steam connection pipe is located close to the mixing fluid connection pipe.

[0019] The second housing has a steam inlet located near the mixed fluid outlet, and the first housing has a condensate drain located near the mixed fluid inlet.

[0020] Preferably, both the first housing and the second housing are cylindrical tubes.

[0021] Preferably, the plurality of first mixing fluid pipes are evenly spaced within the first housing, and the plurality of second mixing fluid pipes are evenly spaced within the second housing.

[0022] Preferably, the condensate outlet is equipped with a mist eliminator.

[0023] Preferably, the integrated heating separator module further includes:

[0024] An oil drain line is connected to the oil drain port of the separator;

[0025] An exhaust pipeline that is connected to the exhaust port of the separator;

[0026] A drainage pipeline connected to the drain outlet of the separator;

[0027] The oil-gas mixture is separated into oil, gas, and water by the separator and discharged from the oil outlet, gas outlet, and water outlet, respectively.

[0028] Preferably, the oil drain line, exhaust line, and drainage line are each equipped with a production metering device and a sampling channel.

[0029] Preferably, the first housing has a drain port.

[0030] Preferably, a first safety valve is installed on the second housing, and a first emergency discharge pipeline is connected through the first safety valve;

[0031] A second safety valve is installed at the inlet of the separator and on the housing of the separator, and a second emergency discharge pipeline is connected through the second safety valve.

[0032] Preferably, both the second mixing fluid pipe and the second mixing fluid pipe are thin-walled circular pipes with an inner diameter of 29 mm.

[0033] The beneficial effects of this utility model are:

[0034] The integrated heating and separator module provided by this utility model integrates the heater and separator into a whole module, and by improving the heater structure, it can improve heating efficiency and reduce steam consumption. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the integrated heater-splitter module described in this utility model.

[0036] Figure 2 This is a schematic diagram of the overall structure of the heater described in this utility model.

[0037] Figure 3 This is a cross-sectional schematic diagram of the first housing (second housing) of this utility model.

[0038] Figure 4 This is a flowchart of the integrated heater-splitter module described in this utility model. Detailed Implementation

[0039] 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.

[0040] like Figure 1-4 As shown, this utility model provides an integrated heating and separating module, which includes a separator 110 and a heater 120. The heater 120 is fixedly disposed above the separator 110 and is fixedly connected to the separator 110 through a pipeline 130.

[0041] The heater 120 includes: a first housing 121, a first mixing fluid pipe 122, a second housing 123, a second mixing fluid pipe 124, a mixing fluid connecting pipe 125, and a steam connecting pipe 126.

[0042] Both the first housing 121 and the second housing 123 are cylindrical tubes of the same length. A plurality of first mixing fluid tubes 122 are arranged axially within the first housing 121. One end of the first housing 121 has a mixing fluid inlet 121a, which communicates with the plurality of first mixing fluid tubes 122.

[0043] The second housing 123 is arranged parallel to the first housing 121. A plurality of second mixing fluid pipes 124 are arranged axially within the second housing 123. One end of the second housing 123 is provided with a mixing fluid outlet 123a, which communicates with the plurality of second mixing fluid pipes 124.

[0044] One end of the mixing fluid connecting pipe 125 is fixedly connected to the other end of the first housing 121 and communicates with a plurality of first mixing fluid pipes 122; the other end is fixedly connected to the other end of the second housing 123 and communicates with a plurality of second mixing fluid pipes 124. The mixing fluid connecting pipe 125, the first housing 121 and the second housing 123 form a U-shaped structure; the mixing fluid outlet 123a is connected to the inlet of the separator 110 through the pipeline 130.

[0045] The steam connecting pipe 126 is connected at both ends to the inner cavities of the first housing 121 and the second housing 123, respectively, and is positioned close to the mixing fluid connecting pipe 125. The second housing 123 has a steam inlet 123b, which is positioned close to the mixing fluid outlet 123a. The first housing 121 has a condensate drain port 121b, used to discharge the liquid formed after steam condensation; the condensate drain port 121b is positioned close to the mixing fluid inlet 121a. High-temperature steam is introduced into the inner cavity of the second housing 123 through the steam inlet 123b, thereby heating the oil-gas mixture in the first mixing fluid pipe 122 and the second mixing fluid pipe 124. The oil-gas mixture flows into the heater from the first housing 121, passes through the mixture connecting pipe 125, and flows out of the heater from the second housing 123; high-temperature steam flows into the heater from the second housing 123, passes through the steam connecting pipe 126, enters the first housing 121, and flows out from the first housing 121 after condensation; the high-temperature steam and the oil-gas mixture flow in opposite directions to ensure full contact between them and improve heating efficiency.

[0046] Preferably, a plurality of first mixing fluid pipes 122 are evenly spaced within the first housing 121, and a plurality of second mixing fluid pipes 124 are evenly spaced within the second housing 123. This ensures uniform contact between steam and the first mixing fluid pipes 122 and the second mixing fluid pipes 124, thereby further improving heating efficiency.

[0047] Oil-gas mixture and high-temperature (water) steam enter the heater through the mixture inlet 121a and steam inlet 123b, respectively. After being heated by the high-temperature steam inside the heater, the oil-gas mixture exits the heater via the connecting pipeline 130 and enters the separator 110 for oil-gas separation. After entering the heater, the high-temperature steam completes its entire journey within the shell side of the series heaters and is finally discharged as condensate from the condensate drain 121b.

[0048] As a further preferred option, the condensate outlet 121b is equipped with a mist eliminator to prevent steam from escaping.

[0049] The integrated heating separator module further includes: an oil drain line 127, which is connected to the oil drain port of the separator 110; an exhaust line 128, which is connected to the exhaust port of the separator 110; and a drain line 129, which is connected to the drain port of the separator 110; wherein, the oil-gas mixture is separated into oil, gas and water by the separator 110 and discharged from the oil drain port, exhaust port and drain port respectively.

[0050] The oil drain line 127, the exhaust line 128 and the drainage line 128 are respectively equipped with production metering devices and sampling channels to accurately obtain oil, gas and water production data as well as PVT samples.

[0051] A drain port is provided at the bottom of the first housing 121, and the drain port is connected to the drain pipe 140 to facilitate the periodic cleaning of impurities inside the heater housing.

[0052] Preferably, a first safety valve is installed on the second housing 123, and connected to the first emergency discharge line 150. Second safety valves are installed at the inlet of the separator 110 and on the housing of the separator 110, respectively, and connected to the second emergency discharge line 160. Once the pressure exceeds the pressure set by the first and second safety valves, the internal fluid will be rapidly discharged from the first emergency discharge line 150 and the second emergency discharge line 160 to relieve pressure, ensuring pressure safety during equipment operation.

[0053] As a further preferred embodiment, temperature sensors are also installed at the mixed fluid inlet 121a, mixed fluid outlet 123a, and steam inlet 123b to monitor the fluid temperature. These temperature sensors are connected to a temperature controller 170. The temperature controller 170 acquires the temperatures detected by each sensor and determines the heating status, thereby facilitating the adjustment of the amount of high-temperature steam based on the heating status to prevent insufficient or excessive heating.

[0054] This invention changes the traditional coil heating method in terms of heaters, adopting a multi-tube heating method. Multiple thin tubes (a first mixing fluid tube and a second mixing fluid tube) are connected in parallel inside the first and second shells to form a tube bundle as the tube side. The mixed fluid to be heated flows within the tube bundle. The tube bundle is covered by a pressure-resistant shell (the first and second shells) as the shell side. High-temperature steam is introduced into the shell side, flowing according to a scientifically planned flow path to increase the heat exchange rate between the steam and the tube bundle, thereby improving heat utilization.

[0055] In this embodiment, the multi-tube heater has a U-shaped shape, and both the second mixing fluid tube and the shell-side tube are thin-walled circular tubes with an inner diameter of 29 mm. The design pressure of the multi-tube heater is 35 MPa for the tube side and 10 MPa for the shell side. The heating power of the multi-tube heater is 644 kW / Hr. Compared with the traditional 76 mm coil, the heater provided by this invention can achieve a larger heat exchange area, thereby improving heat exchange efficiency and reducing the waste of steam heat.

[0056] Compared with traditional coil heaters, the heater provided by this utility model has a more compact size and higher heating efficiency. It is U-shaped and occupies little space, which creates conditions for the integrated integration of heater and separator. The multi-tube heater and separator are modularly integrated. The U-shaped heater is designed on the top of the module and the separator is designed on the bottom of the module, forming an upper and lower structure. The heater and separator are connected by fixed pipelines.

[0057] The integrated heating and separator module provided by this utility model integrates the heater and separator, reducing the number of equipment hoisting operations (from 2 to 1), saving time for manual connection of the heater and separator (while reducing the risk of pipeline pressure test failure), reducing operation preparation time, improving operation efficiency, improving rapid response capability of testing, and reducing the deck space occupied by the test operation on the offshore platform, reserving more deck space for other operations, which is of great significance.

[0058] The adoption of a new multi-tube heating method improves heating efficiency, reduces equipment size and weight, reduces the amount of heating steam used, reduces energy waste, and promotes low-carbon testing at sea.

[0059] The integrated heating and separation module shortens the distance between the heater and the separator, reducing heat dissipation during fluid transport and minimizing energy waste. Positioning the heater at the top (height > 2 meters) also significantly reduces the risk of burns to operators.

[0060] 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. An integrated heating separator module, characterized in that, include: Separator; A heater, which is fixedly mounted above the separator; The heater includes: First shell; A plurality of first mixing fluid tubes are disposed within the first housing along the axial direction of the first housing; The first housing has a mixing fluid inlet at one end, and the mixing fluid inlet is connected to the plurality of first mixing fluid pipes; The second housing is arranged parallel to the first housing; Multiple second mixing fluid tubes are arranged axially within the second housing; The second housing has a mixing fluid outlet at one end, which is connected to the plurality of second mixing fluid pipes; A mixing fluid connecting pipe, one end of which is connected to the other end of the first housing and communicates with a plurality of first mixing fluid pipes; the other end of which is connected to the other end of the second housing and communicates with a plurality of second mixing fluid pipes; The mixing fluid connecting pipe, together with the first housing and the second housing, forms a U-shaped structure; the mixing fluid outlet is connected to the inlet of the separator via a pipeline. A steam connection pipe is provided, with its two ends connected to the first housing and the second housing respectively, and the steam connection pipe is located close to the mixing fluid connection pipe. The second housing has a steam inlet located near the mixed fluid outlet, and the first housing has a condensate drain located near the mixed fluid inlet.

2. The integrated heating separator module according to claim 1, characterized in that, Both the first housing and the second housing are cylindrical tubes.

3. The integrated heating separator module according to claim 2, characterized in that, The plurality of first mixing fluid pipes are evenly spaced within the first housing, and the plurality of second mixing fluid pipes are evenly spaced within the second housing.

4. The integrated heating separator module according to claim 3, characterized in that, The condensate outlet is equipped with a mist eliminator.

5. The integrated heating separator module according to claim 3 or 4, characterized in that, Also includes: An oil drain line is connected to the oil drain port of the separator; An exhaust pipeline that is connected to the exhaust port of the separator; A drainage pipeline connected to the drain outlet of the separator; The mixed fluid is separated into oil, gas and water by the separator and discharged from the oil outlet, gas outlet and water outlet respectively.

6. The integrated heating separator module according to claim 5, characterized in that, The oil drain line, exhaust line, and drainage line are each equipped with a production metering device and a sampling channel.

7. The integrated heating separator module according to claim 6, characterized in that, The first housing has a drain port.

8. The integrated heating separator module according to claim 7, characterized in that, A first safety valve is installed on the second housing, and the first emergency discharge pipeline is connected through the first safety valve; A second safety valve is installed at the inlet of the separator and on the housing of the separator, and a second emergency discharge pipeline is connected through the second safety valve.

9. The integrated heating separator module according to claim 1, characterized in that, Both the second mixing fluid pipe and the second mixing fluid pipe are thin-walled circular pipes with an inner diameter of 29 mm.

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