Oil field sampler for oil field exploration

Abstract

The utility model belongs to the technical field of oil field exploration, in particular to an oil field sampler for oil field exploration, which comprises a sampling barrel, an extension section integrally formed on one side of the sampling barrel and a sampling tube communicated with the extension section, the inner side of the extension section is rotatably connected with a spherical body, and the spherical body is provided with a sampling hole penetrating up and down. A transmission module for driving the spherical body to rotate is mounted on the sampling barrel and comprises a driving rod and a round rod which are rotationally connected to the sampling barrel. The extending section of the sampler is rotationally connected with the spherical body, and the sampling hole penetrating up and down is formed in the spherical body, so that a sample can enter the sampling barrel through the sampling hole during sampling operation, the rack is in contact with the gear when the sampling is close to the tail, and the spherical body is driven to rotate and stop sampling through the relationship of the transmission module; meanwhile, the sample can be blocked, leakage is avoided, and the problem that a device at the present stage is prone to causing sample leakage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield exploration, and particularly relates to an oilfield sampler for oilfield exploration. Background Technique

[0002] Oilfield exploration refers to the process of exploring oilfields within the earth's surface. During the exploration process, sampling operations are required. An oilfield sampler used in oilfield exploration is a device that is used to sample the drilling fluid during the oil drilling process. Users can use it to detect the performance parameters of the drilling fluid at any time. Due to the particularity of oil samples, the nozzle of the sampler cannot be particularly small, otherwise it will affect the sampling of oil samples. Therefore, when the sampler completes the sampling operation, the oil sample inside the sampler is likely to leak through the sampling port, and it is easy to occur the situation of sample side leakage, which affects the carrying of the device and is not conducive to the protection of samples. Therefore, the utility model proposes an oilfield sampler for oilfield exploration to solve this problem. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides an oilfield sampler for oilfield exploration. By rotatably connecting a spherical body on the extension section of the sampler, a sampling hole penetrating up and down is arranged on the spherical body. During the sampling operation, the sample can enter the sampling cylinder through the sampling hole. When the sampling is nearly finished, the rack contacts the gear, and drives the spherical body to rotate through the relationship of the transmission module, stops sampling, and can also block the sample to avoid leakage, solving the problem that the current device is prone to sample leakage.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] An oilfield sampler for oilfield exploration includes a sampling cylinder, an extension section integrally formed on one side of the sampling cylinder, and a sampling pipe communicated with the extension section. A spherical body is rotatably connected to the inner side of the extension section. A sampling hole penetrating up and down is arranged on the spherical body. And a transmission module for driving the spherical body to rotate is installed on the sampling cylinder. The transmission module includes a driving rod and a round rod rotatably connected to the sampling cylinder. One end of the driving rod is fixedly connected to the spherical body, and the other end of the driving rod is fixedly connected with a passive wheel. One end of the round rod extends to the inner side of the sampling cylinder and is fixed with a gear, and the other end of the round rod is fixedly connected with an active wheel. A synchronous belt is arranged between the active wheel and the passive wheel. A piston plate is slidably connected to the inner wall of the sampling cylinder, and a rack is fixedly connected to one side of the piston plate. The rack is meshed with the gear.

[0008] Further, a protective cover is fixedly connected to the outer wall of the sampling cylinder on the outside of the transmission module.

[0009] Further, a piston rod is fixedly connected to one side of the piston plate, a handle is provided at the end of the piston rod, and a cylinder cover is fixedly connected to one side of the sampling cylinder. A limiting groove is formed in the cylinder cover, and a limiting protrusion adapted to the limiting groove is fixedly connected to the piston rod corresponding to the limiting groove.

[0010] Further, a spherical cover is threadedly connected to the end of the sampling tube, and a plurality of through holes are formed in the spherical cover in an array distribution.

[0011] Further, an auxiliary discharge pipe is communicated with the bottom of the sampling cylinder, and a pipe cap is provided at the end of the auxiliary discharge pipe.

[0012] (III) Advantageous Effects

[0013] Compared with the prior art, the present utility model provides an oilfield sampler for oilfield exploration, which has the following advantageous effects:

[0014] In the present utility model, a spherical body is rotatably connected to the extension section of the sampler, and a sampling hole is formed in the spherical body. During sampling operation, the oil sample enters the inside of the sampling cylinder through the spherical cover, the sampling tube, and the sampling hole. When the sampling operation is about to end, the rack on one side of the piston plate contacts the gear, and the spherical body rotates through the transmission relationship of the transmission module, adjusting the angle of the sampling hole and stopping the feeding. At the same time, the sample inside the sampling cylinder can be blocked by the action of the spherical body to avoid sample leakage and falling out. When it is necessary to take out the sample inside the sampling cylinder, the pipe cap on the auxiliary discharge pipe is opened, and the piston rod is controlled to move down by the handle, so that the sample can be discharged through the auxiliary discharge pipe and the sampling tube (it can also be discharged through the corresponding discharge pipe or sampling tube), realizing the sampling of the sample. Therefore, the device has good functionality during use, and the sample will not leak from the inside of the sampling cylinder after sampling, forming a protective effect on the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is an internal structural view of the present utility model;

[0017] Figure 3 is a schematic structural view of the transmission module in the present utility model;

[0018] Figure 4 is a schematic structural view of another rotation mode of the spherical body in the present utility model.

[0019] In the figure: 1, sampling cylinder; 2, protective cover; 3, cylinder cover; 4, piston rod; 5, handle; 6, sampling pipe; 7, spherical cover; 8, through hole; 9, piston plate; 10, limiting projection; 11, rack; 12, transmission module; 1201, driving rod; 1202, driven wheel; 1203, synchronous belt; 1204, driving wheel; 1205, round rod; 1206, gear; 13, extension section; 14, spherical body; 15, sampling hole; 16, cavity groove; 17, motor shaft; 18, servo motor; 19, end cover. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Embodiment

[0022] As Figure 1 , Figure 2 and Figure 3 shown, an oilfield sampler for oilfield exploration proposed in an embodiment of the present invention includes a sampling cylinder 1, an extension section 13 integrally formed on one side of the sampling cylinder 1, and a sampling pipe 6 communicated with the extension section 13. A spherical body 14 is rotatably connected to the inner side of the extension section 13. A sampling hole 15 penetrating up and down is formed in the spherical body 14. And a transmission module 12 for driving the spherical body 14 to rotate is installed on the sampling cylinder 1. The transmission module 12 includes a driving rod 1201 and a round rod 1205 rotatably connected to the sampling cylinder 1. One end of the driving rod 1201 is fixedly connected to the spherical body 14. The other end of the driving rod 1201 is fixedly connected with a driven wheel 1202. One end of the round rod 1205 extends to the inner side of the sampling cylinder 1 and is fixed with a gear 1206. The other end of the round rod 1205 is fixedly connected with a driving wheel 1204. A synchronous belt 1203 is arranged between the driving wheel 1204 and the driven wheel 1202. A piston plate 9 is slidably connected to the inner wall of the sampling cylinder 1. And a rack 11 is fixedly connected to one side of the piston plate 9. The rack 11 meshes with the gear 1206.

[0023] It should be noted that the setting of the extension section 13 can strengthen the connection strength between the sampling cylinder 1 and the sampling pipe 6, and is used for the installation of the spherical body 14. The lengths of the extension section 13 and the sampling pipe 6 can be designed according to requirements. By opening a sampling hole 15 on the spherical body 14, when the sampling hole 15 is communicated with the sampling cylinder 1 and the sampling pipe 6, the feeding of the petroleum sample can be realized. When the sampling hole 15 does not contact the sampling pipe 6, the petroleum sample in the sampling cylinder 1 can be blocked to avoid leakage. By installing a transmission module 12 on the sampling cylinder 1, the transmission module 12 is mainly composed of a driving rod 1201, a driven wheel 1202, a synchronous belt 1203, a driving wheel 1204, a round rod 1205 and a gear 1206. And a rack 11 is fixedly connected to one side of the piston plate 9. When the sampling is about to end, the piston plate 9 is located at the upper inner side of the sampling cylinder 1. At this time, the rack 11 contacts the gear 1206, and then drives the round rod 1205 to rotate. Then, through the relationship between the driving rod 1201, the driven wheel 1202, the synchronous belt 1203 and the driving wheel 1204, the spherical body 14 is driven to rotate, and the angle of the sampling hole 15 is adjusted to realize the blocking of the petroleum sample in the sampling cylinder 1 and avoid leakage.

[0024] As Figure 1 and Figure 2 shown, in some embodiments, a protective cover 2 is fixedly connected to the outer wall of the sampling cylinder 1 on the outer side of the transmission module 12.

[0025] It should be noted that the setting of the protective cover 2 can achieve the protective effect on the transmission module 12.

[0026] As Figure 1 and Figure 2 shown, in some embodiments, a piston rod 4 is fixedly connected to one side of the piston plate 9, a handle 5 is arranged at the end of the piston rod 4, and a cylinder cover 3 is fixedly connected to one side of the sampling cylinder 1. A limiting groove is opened on the cylinder cover 3, and a limiting protrusion 10 adapted to the limiting groove is fixedly connected to the piston rod 4 corresponding to the limiting groove.

[0027] It should be noted that the setting of the limiting protrusion 10 and the limiting groove can realize the movement limit of the piston plate 9 and the rack 11, so that the position of the rack 11 is aligned with the gear 1206, and the meshing relationship between the rack 11 and the gear 1206 is ensured.

[0028] As Figure 1 and Figure 2 shown, in some embodiments, a spherical cover 7 is threadedly connected to the end of the sampling pipe 6, and through holes 8 are arranged on the spherical cover 7 in an array distribution.

[0029] It should be noted that the setting of the spherical cover 7 can achieve the protection at the sampling port, prevent foreign objects from entering, and then cause blockage.

[0030] As Figure 1As shown, in some embodiments, an auxiliary discharge pipe is connected to the bottom of the sampling cylinder 1, and a pipe cap is provided at the end of the auxiliary discharge pipe.

[0031] It should be noted that the setting of the auxiliary discharge pipe can facilitate the removal of the sample inside the sampling cylinder 1. When it is necessary to discharge the sample inside the sampling cylinder 1, the pipe cap at the end of the auxiliary discharge pipe is opened, and the handle 5 is pressed to move the piston plate 9 downward. At this time, the sample inside the sampling cylinder 1 can be discharged through the auxiliary discharge pipe. At the same time, the rack 11 moves downward, and then the rotation of the spherical body 14 is controlled through the relationship of the transmission module 12. When the sampling hole 15 is communicated with the sampling cylinder 1 and the sampling pipe 6, the sample inside the sampling cylinder 1 can be discharged through the sampling pipe 6. Since the spherical cover 7 is connected to the sampling pipe 6 by a threaded connection and can be removed, the sample inside the sampling cylinder 1 can be taken out. The pipe cap can be fixed to the auxiliary discharge pipe so that the sample is only discharged through the sampling pipe 6.

[0032] As Figure 4 shown, different from the above solution, the present invention can also control the rotation of the spherical body 14 through the motor shaft 17 and the servo motor 18 to adjust the angle of the sampling hole 15. It is not necessary to use the protective cover 2, the rack 11, and the transmission module 12, and the auxiliary discharge pipe can also be selectively not used. A cavity 16 is opened on the extension section 13, and the servo motor 18 is installed at the cavity 16 of the extension section 13. The motor shaft 17 is coaxially arranged on one side of the servo motor 18, and one end of it is fixedly connected to the spherical body 14. The servo motor 18 can realize the rotation adjustment of the spherical body 14, and then adjust the angle of the sampling hole 15. When the sampling hole 15 is communicated with the sampling pipe 6, the sample can be taken. When the sampling hole 15 is not closed with the sampling pipe 6, the petroleum sample inside the sampling cylinder 1 can be blocked. A end cover 19 is fixedly connected to one side of the extension section 13 where the cavity 16 is located to achieve the safety protection of the servo motor 18.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oilfield sampler for oilfield exploration, characterized in that: It includes a sampling cylinder (1), an extension section (13) integrally formed on one side of the sampling cylinder (1), and a sampling tube (6) connected to the extension section (13). A spherical body (14) is rotatably connected to the inner side of the extension section (13). A sampling hole (15) penetrating up and down is provided on the spherical body (14). And a transmission module (12) for driving the spherical body (14) to rotate is installed on the sampling cylinder (1). The transmission module (12) includes a driving rod (1201) and a round rod (1205) rotatably connected to the sampling cylinder (1). One end of the driving rod (1201) is fixedly connected to the spherical body (14). The other end of the driving rod (1201) is fixedly connected with a passive wheel (1202). One end of the round rod (1205) extends to the inner side of the sampling cylinder (1) and is fixed with a gear (1206). The other end of the round rod (1205) is fixedly connected with an active wheel (1204). A synchronous belt (1203) is arranged between the active wheel (1204) and the passive wheel (1202). A piston plate (9) is slidably connected to the inner wall of the sampling cylinder (1). And a rack (11) is fixedly connected to one side of the piston plate (9). The rack (11) meshes with the gear (1206).

2. The oilfield sampler for oilfield exploration according to claim 1, characterized in that: A protective cover (2) is fixedly connected to the outer wall of the sampling cylinder (1) on the outside of the transmission module (12).

3. An oilfield sampler for oilfield exploration according to claim 1, characterized in that: A piston rod (4) is fixedly connected to one side of the piston plate (9). A handle (5) is arranged at the end of the piston rod (4). And a cylinder cover (3) is fixedly connected to one side of the sampling cylinder (1). A limiting groove is provided on the cylinder cover (3). A limiting protrusion (10) adapted to the limiting groove is fixedly connected to the piston rod (4) corresponding to the limiting groove.

4. The oilfield sampler for oilfield exploration according to claim 1, characterized in that: A spherical cover (7) is threadedly connected to the end of the sampling tube (6). Through holes (8) distributed in an array are provided on the spherical cover (7).

5. The oilfield sampler for oilfield exploration according to claim 1, characterized in that: An auxiliary discharge pipe is communicated with the bottom of the sampling cylinder (1), and a pipe cap is arranged at the end of the auxiliary discharge pipe.

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