Petroleum sampling device

Abstract

The utility model discloses a petroleum sampling device and relates to the technical field of petroleum sampling. The petroleum sampling device comprises a barrel, a top cover is arranged on the upper side of the barrel, a piston is slidably connected to the interior of the barrel, a connecting rod is connected to the upper surface of the piston, an open hole is formed in the upper surface of the top cover in a penetrating mode, and the upper end of the connecting rod penetrates through the open hole to be connected with a hanging ring. The whole device can be driven to move by pulling or lowering the pull rope at the position of the fixing ring, when the barrel body moves to the position where sampling is needed, negative pressure can be generated in the barrel body only by pulling the pull rope at the position of the hanging ring upwards, and therefore petroleum is sucked into the barrel body to be sampled. The height of the device can be adjusted by pulling or lowering the pull rope at the fixing ring, so that the device can sample petroleum at various depths, and negative pressure can be generated in the barrel by pulling the connecting rod, so that the operation is relatively simple and convenient, and petroleum sampling is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum sampling, in particular to a petroleum sampling device. Background Art

[0002] Petroleum is a viscous, dark brown liquid. By sampling crude oil and conducting chemical analysis on the samples, the physical properties of the oil well output fluid can be obtained, providing a basis for dynamic analysis of oil well production and improving oil well management measures.

[0003] Existing oil samplers can draw oil into corresponding containers by generating negative pressure. For example, Chinese patent application number CN202222305239.2 discloses an oil sampler, which includes a main body, and two sets of fixed handles are fixedly connected to the outer side of the main body near the top, a piston is arranged inside the main body, a threaded rod is arranged on the upper side of the piston, a fixing ring is fixedly connected to the top of the threaded rod, a sealing top cover is clamped on the upper side of the main body, a feed pipe is fixedly connected to the lower end of the main body, and a leak-proof mechanism is arranged on the outer side of the main body near the bottom.

[0004] When the sampler is in use, the piston rises by rotating the threaded rod, thereby generating negative pressure in the main body and sampling the oil. When the sampler is placed in the oil via a rope, the threaded rod cannot be rotated via the rope, resulting in the sampler being unable to sample oil at depth. Utility Model Content

[0005] Technical issues solved

[0006] In view of the deficiencies of the prior art, the utility model provides a petroleum sampling device, which solves the problem that the sampling device cannot sample petroleum at various depths.

[0007] Technical Solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an oil sampling device, including a cylinder, a top cover is provided on the upper side of the cylinder, a piston is slidably connected to the inside of the cylinder, a connecting rod is connected to the upper surface of the piston, an opening is penetrated through the upper surface of the top cover, a lifting ring is connected to the upper end of the connecting rod through the opening, an opening is penetrated through the lower surface of the cylinder, a fixing rod is connected to the lower surface of the cylinder, a counterweight is connected to the lower end of the fixing rod, fixing rings are connected to both sides of the upper surface of the top cover, pull ropes are passed through the inner sides of the lifting rings and the fixing rings, and both ends of the pull ropes extend upward.

[0009] Preferably, a groove is provided on the upper surface of the counterweight block.

[0010] Preferably, the upper end of the connecting rod is rotatably connected to the lifting ring via a rotating shaft.

[0011] Preferably, holes are formed through the upper surface of the counterweight block.

[0012] Preferably, a sealing ring is connected to the inner wall of the opening.

[0013] Preferably, bolts are threadedly connected through both sides of the lower surface of the counterweight block, and the upper ends of the bolts extend into the interior of the corresponding fixing rods and the bolts are threadedly connected to the fixing rods.

[0014] Preferably, the fixing rod is made of stainless steel.

[0015] Beneficial Effects

[0016] The utility model provides a petroleum sampling device, which has the following beneficial effects:

[0017] By means of the provided lifting ring, pulling rope and other structures, the entire device can be driven to move by pulling or lowering the pulling rope at the fixed ring. When the cylinder moves to the position where sampling is required, negative pressure can be generated in the cylinder by simply pulling the pulling rope at the lifting ring upwards, thereby sucking the oil into the cylinder for sampling. Compared with the prior art, the height of the device can be adjusted by pulling or lowering the pulling rope at the fixed ring, so that the device can sample oil at various depths, and negative pressure can be generated in the cylinder by pulling the connecting rod, which makes the operation simpler and makes oil sampling more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cylinder of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the counterweight block of the utility model;

[0021] Figure 4 This is a schematic diagram of the fixing rod structure of the utility model.

[0022] In the figure: 1. cylinder; 2. top cover; 3. piston; 4. connecting rod; 5. lifting ring; 6. pull rope; 7. opening; 8. opening; 9. fixing rod; 10. counterweight; 11. groove; 12. fixing ring; 13. hole; 14. sealing ring; 15. bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a petroleum sampling device, including a cylinder 1, a top cover 2 is provided on the upper side of the cylinder 1, a piston 3 is slidably connected inside the cylinder 1, a connecting rod 4 is connected to the upper surface of the piston 3, an opening 8 is penetrated on the upper surface of the top cover 2, a lifting ring 5 is connected to the upper end of the connecting rod 4 through the opening 8, an opening 7 is penetrated on the lower surface of the cylinder 1, a fixing rod 9 is connected to the lower surface of the cylinder 1, a counterweight 10 is connected to the lower end of the fixing rod 9, fixing rings 12 are connected on both sides of the upper surface of the top cover 2, a pull rope 6 is passed through the inner side of the lifting ring 5 and the fixing ring 12, and both ends of the pull rope 6 extend upward, and the pull rope 6 is an anti-static rope. The anti-static rope is an anti-static sampling, temperature measuring and water testing rope used in petrochemical enterprises. It is a prior art and will not be repeated here.

[0025] During operation, the drawstring 6 at the fixed ring 12 is lowered to lower the height of the device. When the device reaches the oil at the corresponding depth, the drawstring 6 at the lifting ring 5 is pulled to raise the height of the connecting rod 4 and drive the piston 3 to rise, so that negative pressure is generated in the cylinder 1, and the oil enters the cylinder 1 through the opening 7. After obtaining enough samples, the drawstring 6 at the fixed ring 12 is pulled to raise the device away from the oil. The setting of the counterweight block 10 can improve the stability of the device when rising and falling. At the same time, the counterweight block 10 can increase the weight of the cylinder 1 to prevent the cylinder 1 from moving when the drawstring 6 at the lifting ring 5 is pulled.

[0026] See also Figure 1-4 The utility model provides a technical solution: a groove 11 is provided on the upper surface of the counterweight block 10 .

[0027] During operation, the contact area between the upper surface of the counterweight block 10 and the oil can be increased by setting the groove 11, so that the counterweight block 10 can generate resistance when moving upward, which can effectively prevent the cylinder 1 from moving when the lifting ring 5 is pulled.

[0028] See also Figure 1-4 The utility model provides a technical solution: the upper end of the connecting rod 4 is rotatably connected to the hanging ring 5 through a rotating shaft.

[0029] During operation, since the connecting rod 4 and the lifting ring 5 are rotatably connected, the rotation of the cylinder 1 will not drive the lifting ring 5 to rotate, so that the rotation of the cylinder 1 during the movement will not affect the pulling of the lifting ring 5.

[0030] See also Figure 1-4 The utility model provides a technical solution: a hole 13 is opened through the upper surface of the counterweight block 10, and the hole 13 is located at the center of the upper surface of the counterweight block 10.

[0031] During operation, due to the arrangement of the holes 13 , when the counterweight 10 leaves the oil, the oil in the groove 11 will leave the counterweight 10 through the holes 13 .

[0032] See also Figure 1-4 The utility model provides a technical solution: the inner wall of the opening 8 is connected with a sealing ring 14, and the sealing ring 14 is made of rubber.

[0033] During operation, the sealing performance between the opening 8 and the connecting rod 4 can be improved by providing the sealing ring 14 .

[0034] See also Figure 1-4 The utility model provides a technical solution: bolts 15 are threadedly connected through both sides of the lower surface of the counterweight block 10, and the upper ends of the bolts 15 extend into the corresponding interior of the fixing rod 9 and the bolts 15 are threadedly connected to the fixing rod 9.

[0035] During operation, the counterweight 10 can be separated from the fixing rod 9 by unscrewing the bolt 15 , so that the counterweight 10 can be stored and cleaned separately later.

[0036] See also Figure 1-4 The utility model provides a technical solution: the fixing rod 9 is made of stainless steel.

[0037] During operation, the fixing rod 9 made of stainless steel has high strength, which helps the fixing rod 9 to bear the weight of the counterweight 10 .

[0038] In summary, the pull rope 6 at the fixed ring 12 is lowered to lower the height of the device. When the device reaches the oil at the corresponding depth, the pull rope 6 at the lifting ring 5 is pulled to raise the height of the connecting rod 4 and drive the piston 3 to rise, so that negative pressure is generated in the cylinder 1, and the oil enters the cylinder 1 through the opening 7. After obtaining enough samples, the pull rope 6 at the fixed ring 12 is pulled to raise the device away from the oil. The stability of the device during ascent and descent can be improved by setting the counterweight block 10. At the same time, the counterweight block 10 can increase the weight of the cylinder 1 to prevent the cylinder 1 from moving when the pull rope 6 at the lifting ring 5 is pulled. If the cylinder 1 moves with the pull rope 6 at the lifting ring 5, the sampling operation can be performed by quickly and repeatedly pulling the lifting ring 5.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petroleum sampling device, comprising a cylinder (1), characterized in that: A top cover (2) is provided on the upper side of the cylinder (1), a piston (3) is slidably connected inside the cylinder (1), a connecting rod (4) is connected to the upper surface of the piston (3), an opening (8) is penetrated through the upper surface of the top cover (2), the upper end of the connecting rod (4) passes through the opening (8) and is connected to a lifting ring (5), an opening (7) is penetrated through the lower surface of the cylinder (1), a fixing rod (9) is connected to the lower surface of the cylinder (1), a counterweight (10) is connected to the lower end of the fixing rod (9), fixing rings (12) are connected to both sides of the upper surface of the top cover (2), and a pull rope (6) passes through the inner side of the lifting ring (5) and the fixing ring (12), and the two ends of the pull rope (6) extend upward.

2. A petroleum sampling device according to claim 1, characterized in that: The upper surface of the counterweight block (10) is provided with a groove (11).

3. A petroleum sampling device according to claim 1, characterized in that: The upper end of the connecting rod (4) is rotatably connected to the lifting ring (5) via a rotating shaft.

4. A petroleum sampling device according to claim 2, characterized in that: A hole (13) is formed through the upper surface of the counterweight block (10).

5. The petroleum sampling device according to claim 1, characterized in that: A sealing ring (14) is connected to the inner wall of the opening (8).

6. A petroleum sampling device according to claim 1, characterized in that: Bolts (15) are threadedly connected through both sides of the lower surface of the counterweight block (10), and the upper ends of the bolts (15) extend into the interior of the corresponding fixing rod (9), and the bolts (15) are threadedly connected to the fixing rod (9).

7. The petroleum sampling device according to claim 1, characterized in that: The fixing rod (9) is made of stainless steel.

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