Oil exploitation sampling equipment

Abstract

The utility model discloses oil exploitation sampling equipment which comprises an outer sampling cover and an inner sampling barrel, the bottom of the outer sampling cover is communicated with a gathering hopper, an oil inlet groove is formed in the outer side of the outer sampling cover, a circular assembly groove is formed in the top of the outer sampling cover, a filter frame is fixedly installed at the bottom of the inner sampling barrel, and a filter screen is arranged in the filter frame. Filter holes are formed in the outer side of the filter frame; petroleum can be divided into two detection samples through the outer sampling cover and the inner sampling barrel, one sample is clean petroleum which enters the inner sampling barrel after being filtered through the filter frame and the filter holes and can be used for detecting the quality of the petroleum, and the other sample is petroleum containing impurities in the outer sampling cover and can be used for detecting the quality of the petroleum. The petroleum impurity detection device can be used for detecting the content of petroleum impurities in an oil well, the sampling quality can be improved, the accuracy and reliability of a detection result can be ensured, the actual condition of petroleum can be known and mastered more comprehensively, and more scientific and reasonable decision support is provided for petroleum exploitation, processing and utilization.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, specifically to an oil extraction sampling device. Background Technology

[0002] Petroleum is one of the main targets of geological exploration. It is a viscous, dark brown liquid, often referred to as the "blood of industry." Petroleum reserves exist in parts of the Earth's upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. Petroleum is a fluid mineral buried deep underground. Initially, people called naturally occurring oily liquid minerals "petroleum," combustible gases "natural gas," and solid combustible fuel minerals "asphalt." With in-depth research into these minerals, it was recognized that they are all hydrocarbon compounds and interconnected in their formation. Therefore, they are collectively referred to as petroleum. Petroleum is a complex mixture consisting of naturally occurring gaseous, liquid, and solid hydrocarbon compounds, as well as small amounts of impurities.

[0003] The limitations of existing oil extraction sampling equipment are particularly prominent at the functional level. This is mainly reflected in the fact that they are often limited to only two basic sampling modes: one is sampling crude oil that has undergone fine filtration and whose impurities have been effectively removed; the other is directly sampling crude oil that is completely unfiltered, retaining its original state and all impurities. While this design approach can meet basic sampling needs in certain specific situations, it becomes inadequate when faced with the increasingly complex and variable oil extraction environment and the ever-increasing requirements for sampling and analysis accuracy, highlighting its functional limitation. Utility Model Content

[0004] The purpose of this invention is to provide an oil extraction sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil extraction sampling device, comprising an outer sampling hood and an inner sampling cylinder, wherein the bottom of the outer sampling hood is connected to a collection hopper, an oil inlet groove is provided on the outer side of the outer sampling hood, a circular assembly groove is provided on the top of the outer sampling hood, a filter frame is fixedly installed at the bottom of the inner sampling cylinder, a filter hole is provided on the outer side of the filter frame, an oil suction pipe is fixedly installed inside the inner sampling cylinder, a collection box is connected at the top of the oil suction pipe, an oil suction head is connected at the end of the oil suction pipe away from the collection box, and the oil suction head is located at the bottom of the inner cavity of the inner sampling cylinder, and a connector is connected at the top of the collection box.

[0006] Preferably, the outer contour of the inner sampling cylinder matches the inner contour of the circular assembly groove, and the inner sampling cylinder is snapped into place on the inner side of the circular assembly groove.

[0007] Preferably, there are four oil inlet grooves, and the four oil inlet grooves are symmetrically arranged on the outside of the outer sampling cover.

[0008] Preferably, a sealing cap is threaded onto the outer side of the bottom of the collecting hopper.

[0009] Preferably, there are two oil suction pipes, which are symmetrically installed inside the inner sampling cylinder.

[0010] Preferably, an internal threaded ring is fixedly installed on the top of the inner sampling cylinder, and a hanging frame is fixedly installed on the end of the internal threaded ring away from the inner sampling cylinder. The hanging frame has two hanging grooves symmetrically opened inside.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an outer sampling hood and an inner sampling cylinder, oil can be divided into two types of test samples. One type is clean oil that has been filtered through a filter frame and filter holes and enters the inner sampling cylinder, which can be used to test the oil quality. The other type is oil containing impurities inside the outer sampling hood, which can be used to test the impurity content of oil inside the oil well. This not only improves the quality of sampling and ensures the accuracy and reliability of test results, but also allows for a more comprehensive understanding and grasp of the actual situation of oil, providing more scientific and reasonable decision support for oil extraction, processing and utilization. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present utility model.

[0013] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0014] Figure 3 This is a partial bottom view of the structure of this utility model.

[0015] Figure 4 This is a partial cross-sectional view of the present invention.

[0016] In the diagram: 1. Outer sampling hood; 2. Inner sampling cylinder; 3. Oil inlet groove; 4. Sealing cap; 5. Oil suction pipe; 6. Hanging frame; 7. Connector; 8. Collection box; 9. Hanging groove; 10. Internal threaded ring; 11. Filter hole; 12. Filter frame; 13. Oil suction head; 14. Circular assembly groove; 15. Collection hopper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 This utility model provides a technical solution: an oil extraction sampling device, including an outer sampling hood 1 and an inner sampling cylinder 2. The bottom of the outer sampling hood 1 is connected to a collecting hopper 15. Four oil inlet grooves 3 are symmetrically arranged on the outer side of the outer sampling hood 1. A circular assembly groove 14 is provided on the top of the outer sampling hood 1. The outer contour dimensions of the inner sampling cylinder 2 match the inner contour dimensions of the circular assembly groove 14. The inner sampling cylinder 2 is installed inside the circular assembly slot 14. A filter frame 12 is fixedly installed at the bottom of the inner sampling cylinder 2. A filter hole 11 is opened on the outer side of the filter frame 12. An oil suction pipe 5 is fixedly installed inside the inner sampling cylinder 2. The top of the oil suction pipe 5 is connected to a collection box 8. The end of the oil suction pipe 5 away from the collection box 8 is connected to an oil suction head 13. The oil suction head 13 is located at the bottom of the inner cavity of the inner sampling cylinder 2. A connector 7 is connected to the top of the collection box 8. A sealing cap 4 is threadedly connected to the outer side of the bottom of the collection hopper 15.

[0019] The working principle of the above technical solution is as follows: An external oil pump can be connected through connector 7, and then the external sampling cover 1 can be placed inside the oil well. Oil can enter the interior of the external sampling cover 1 through the oil inlet sump 3, and then be filtered through the filter frame 12 and filter holes 11 before entering the interior of the internal sampling cylinder 2. Then, the oil pump is started, and the oil is pumped into the collection box 8 through the suction pipe 5 and suction head 13. The oil is then extracted through connector 7, and the external sampling cover 1 can be pulled out of the oil well. Through the external sampling cover 1 and the internal sampling cylinder 2, the oil can be divided into two types of test samples. One type is clean oil that has been filtered through the filter frame 12 and filter holes 11 and enters the interior of the internal sampling cylinder 2, which can be used to test the oil quality. The other type is oil containing impurities inside the external sampling cover 1, which can be used to test the impurity content of the oil inside the oil well. This not only improves the quality of sampling and ensures the accuracy and reliability of the test results, but also provides a more comprehensive understanding and grasp of the actual situation of the oil, providing more scientific and reasonable decision support for the extraction, processing and utilization of oil.

[0020] In another implementation scheme, such as Figures 1-4 As shown, there are two oil suction pipes 5, which are symmetrically installed inside the inner sampling cylinder 2.

[0021] By using two suction pipes 5, oil can still be pumped out through the other suction pipe 5 even if one suction pipe 5 is blocked, ensuring the normal operation of the device.

[0022] In another implementation scheme, such as Figures 1-4 As shown, an internal threaded ring 10 is fixedly installed on the top of the inner sampling cylinder 2, and a hanging frame 6 is fixedly installed on the end of the internal threaded ring 10 away from the inner sampling cylinder 2. The hanging frame 6 has two hanging grooves 9 symmetrically opened inside.

[0023] The threaded rod can be connected to the external threaded ring 10, and the hanging frame 6 and hanging groove 9 facilitate the connection of the external lifting rope, making it easy to put the external sampling cover 1 into the oil well.

[0024] Working principle: An external oil pump can be connected via connector 7, and a threaded rod can be connected via the internal threaded ring 10. A hanging rope can be easily connected via the hanging frame 6 and hanging groove 9. The external sampling cover 1 can then be placed inside the oil well. Oil enters the external sampling cover 1 through the inlet groove 3, and after being filtered through the filter frame 12 and filter holes 11, it enters the internal sampling cylinder 2. The oil pump is then started, and the oil is pumped into the collecting box 8 through the suction pipe 5 and suction head 13. The oil is then extracted and sampled via connector 7. The external sampling cover 1 can also be pulled out of the oil well. The external sampling cover 1 and internal sampling cylinder 2 can be used to separate the oil. There are two types of test samples. One is clean oil that has been filtered through the filter frame 12 and filter holes 11 before entering the inner sampling cylinder 2, which can be used to test the oil quality. The other is oil containing impurities inside the outer sampling hood 1, which can be used to test the impurity content of the oil inside the oil well. This not only improves the quality of sampling and ensures the accuracy and reliability of the test results, but also allows for a more comprehensive understanding and grasp of the actual situation of the oil, providing more scientific and reasonable decision support for oil extraction, processing and utilization. The two suction pipes 5 ensure that even if one suction pipe 5 is blocked, oil can still be pumped through the other suction pipe 5, ensuring the normal operation of the device.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil production sampling apparatus comprising an outer sampling shield (1) and an inner sampling barrel (2), characterised in that: The bottom of the outer sampling cover (1) is communicated with a gathering bucket (15), the outer side of the outer sampling cover (1) is provided with an oil inlet groove (3), the top of the outer sampling cover (1) is provided with a circular assembly groove (14), the bottom of the inner sampling cylinder (2) is fixedly installed with a filter frame (12), the outer side of the filter frame (12) is provided with a filter hole (11), the inside of the inner sampling cylinder (2) is fixedly installed with an oil suction pipe (5), the top of the oil suction pipe (5) is communicated with a gathering box (8), the end of the oil suction pipe (5) away from the gathering box (8) is communicated with an oil suction head (13), and the oil suction head (13) is located at the bottom of the inner cavity of the inner sampling cylinder (2), and the top of the gathering box (8) is communicated with a connecting head (7).

2. An oil production sampling apparatus according to claim 1, wherein: The specification size of the outer contour of the inner sampling cylinder (2) is matched with the specification size of the inner contour of the circular assembly groove (14), and the inner sampling cylinder (2) is clamped and installed on the inner side of the circular assembly groove (14).

3. An oil production sampling apparatus according to claim 2, wherein: The oil inlet groove (3) is four, and the four oil inlet grooves (3) are symmetrically provided on the outer side of the outer sampling cover (1).

4. An oil production sampling apparatus according to claim 3, wherein: The outer side of the bottom of the gathering bucket (15) is threadedly connected with a blocking cap (4).

5. An oil production sampling apparatus according to claim 4, wherein: The oil suction pipe (5) is two, and the two oil suction pipes (5) are symmetrically installed in the inside of the inner sampling cylinder (2).

6. An oil production sampling apparatus according to claim 5, wherein: The top of the inner sampling cylinder (2) is fixedly installed with an inner thread ring (10), one end of the inner thread ring (10) away from the inner sampling cylinder (2) is fixedly installed with a wire hanging frame (6), and the inside of the wire hanging frame (6) is symmetrically provided with two wire hanging grooves (9).

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