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CN-224202800-U - Oil well metering is with whole jar sampler

CN224202800UCN 224202800 UCN224202800 UCN 224202800UCN-224202800-U

Abstract

The utility model relates to the technical field of petroleum exploitation equipment and discloses a whole tank sampler for oil well metering, which comprises a sampling tube, a positioning sleeve and a plugging assembly, wherein the positioning sleeve and the plugging assembly are respectively arranged at the top and the bottom of the sampling tube, the bottom of the sampling tube is connected with the plugging assembly, a force application rod of which the top movably penetrates through the positioning sleeve is in clearance fit with the positioning sleeve, and the bottom of the sampling tube can be closed or opened by driving the plugging assembly through sliding the force application rod up and down relative to the sampling tube. Compared with the prior art, the utility model improves the sampling efficiency and the sampling quantity to a certain extent, and the extracted samples integrate the characteristics of water-containing oil at different layers in the oil storage tank, thereby having high comprehensiveness and representativeness.

Inventors

  • LI SHUAI
  • LV JINPING
  • LI DONG
  • Hao Junyue

Assignees

  • 李帅

Dates

Publication Date
20260505
Application Date
20250519

Claims (10)

  1. 1. An oil well metering whole tank sampler, comprising: A sampling tube (1); A positioning sleeve (2) and a plugging assembly which are respectively arranged at the top and the bottom of the sampling tube (1), and The bottom is connected with the shutoff subassembly, and the top activity runs through application of force pole (3) of positioning sleeve (2), application of force pole (3) with positioning sleeve (2) clearance fit, for sampling tube (1), through the upper and lower slip application of force pole (3) can drive the shutoff subassembly seals or opens the bottom of sampling tube (1).
  2. 2. The oil well metering whole tank sampler of claim 1, wherein the plugging assembly comprises: A connecting plate (4) fixedly connected to the lower end of the side wall of the sampling tube (1), and And the plugging plate (5) is hinged with the connecting plate (4), and the plugging plate (5) selectively opens and closes the bottom of the sampling tube (1).
  3. 3. The whole tank sampler for oil well metering according to claim 2, wherein a connecting seat (6) is fixedly connected to the middle part of the upper surface of the plugging plate (5), and the lower end of the force application rod (3) is rotatably connected with the connecting seat (6).
  4. 4. A whole tank sampler for oil well metering according to claim 3, characterized in that the upper surface of the plugging plate (5) is provided with a sealing gasket (7), and the sealing gasket (7) is in interference fit with the lower end of the sampling tube (1) selectively.
  5. 5. The whole tank sampler for oil well metering according to claim 2, characterized in that the top of the force application rod (3) penetrates through the positioning sleeve (2) and is provided with an external thread section, and the external thread section is connected with a nut (8) in a threaded manner.
  6. 6. The whole tank sampler for oil well metering according to claim 5 is characterized in that an operating rod (9) is fixedly connected to the outer side wall of the nut (8).
  7. 7. The whole tank sampler for oil well metering according to claim 1, wherein the positioning sleeve (2) is of a cylindrical structure with a downward opening, an external thread is arranged on the outer side wall of the positioning sleeve (2), an internal thread is arranged at the upper end of the inner side wall of the sampling tube (1), and the upper end of the inner side wall of the sampling tube (1) is in threaded connection with the outer side wall of the positioning sleeve (2).
  8. 8. The oil well metering whole-tank sampler according to any one of claims 1 to 7, further comprising an operation frame (10) fixedly connected to the upper end of the outer side wall of the sampling tube (1), wherein the top of the force application rod (3) sequentially penetrates through the positioning sleeve (2) and the operation frame (10) in a movable manner, and And the two ends of the elastic piece are respectively connected with the operation frame (10) and the force application rod (3), and the elastic piece is used for driving the force application rod (3) to move downwards relative to the sampling tube (1).
  9. 9. The oil well metering whole tank sampler according to claim 8 is characterized in that the elastic piece is a compression spring (11) sleeved on the periphery of the force application rod (3), a positioning ring (12) is fixedly connected to the outer side wall of the force application rod (3), the top of the force application rod (3) sequentially penetrates through the positioning sleeve (2), the positioning ring (12), the compression spring (11) and the operating frame (10), one end of the compression spring (11) is connected with the positioning ring (12), and the other end of the compression spring is connected with the operating frame (10).
  10. 10. The whole tank sampler for oil well metering according to claim 9, wherein a positioning washer (13) is sleeved on the periphery of the force application rod (3), and the positioning washer (13) is positioned between the other end of the compression spring (11) and the operating frame (10).

Description

Oil well metering is with whole jar sampler Technical Field The utility model relates to the technical field of petroleum exploitation equipment, in particular to a whole tank sampler for oil well metering. Background In petroleum exploitation operation, manual sampling has a key meaning for accurately grasping the characteristics of crude oil and effectively implementing production management. However, the existing manual sampling method has a plurality of defects. At present, manual sampling mainly depends on an operator to hold a sampling bottle for operation, the process is extremely easy to be influenced by fluctuation of oil well yield, further the problems of resource waste, environmental pollution and the like are caused, and the sampling efficiency is low. When the oil well sprays crude oil at high speed, the oil sample is easy to overflow, and when the oil well is in a low-yield state or intermittently oil is produced, operators are required to wait for a long time. In addition, the manually collected sample can only reflect the characteristic of crude oil at the sampling moment, has larger deviation, and is difficult to comprehensively and accurately reflect the dynamic change condition of the crude oil. These problems not only reduce the accuracy of crude oil metering, but also adversely affect the optimization of the recovery scheme and the intelligent recovery process. In the prior art, it is common to inject oil into a fluid reservoir and calculate the fluid production from a sample in the reservoir. For example, patent publication number CN222436349U discloses a portable tank section sampler. The sampler drives the sampler body to perform telescopic motion through the telescopic mechanism, and the collection of oil in the oil tank is realized by means of opening and closing of the sealing mechanism. However, the technical solution referred to in this patent exposes some significant drawbacks during practical application. The sampler is characterized in that the first-stage telescopic threaded rod and the threaded section are connected in a matched mode, so that the upper end inside the sampler body forms a sealing structure. In actual sampling, petroleum is difficult to smoothly enter the interior of the sampler due to the continuous compression effect of gas in the sampler, which limits sampling efficiency and sampling amount to a great extent. Meanwhile, the structural design can cause uneven sampling, thereby adversely affecting the accuracy of the test result. In view of this, how to overcome the above limitations of the prior art, to optimize the structure of the sampler to ensure that the petroleum can smoothly enter the sampler, and to improve the sampling efficiency and accuracy, is a technical problem to be solved by those skilled in the art. Disclosure of utility model The utility model aims to provide a whole tank sampler for oil well metering, which overcomes the defects of the prior art. In order to achieve the above purpose, the technical scheme of the utility model is as follows: An oil well metering whole tank sampler comprising: A sampling tube; positioning sleeve and plugging assembly respectively mounted on top and bottom of the sampling tube, and The bottom is connected with the shutoff subassembly, and the top activity runs through the force application pole of positioning sleeve, force application pole and positioning sleeve clearance fit, for the sampling tube, through the upper and lower slip force application pole can drive the shutoff subassembly seals or opens the bottom of sampling tube. Further, the occlusion assembly comprises: A connecting plate fixedly connected to the lower end of the side wall of the sampling tube and And the plugging plate is hinged with the connecting plate and selectively opens and closes the bottom of the sampling tube. Further, a connecting seat is fixedly connected to the middle part of the upper surface of the plugging plate, and the lower end of the force application rod is rotationally connected with the connecting seat. Further, a sealing gasket is mounted on the upper surface of the plugging plate, and the sealing gasket is in interference fit with the lower end of the sampling tube selectively. Further, the top of the force application rod penetrates through the positioning sleeve and is provided with an external thread section, and the external thread section is connected with a nut in a threaded manner. Further, an operating rod is fixedly connected to the outer side wall of the nut. Further, the positioning sleeve is of a cylindrical structure with a downward opening, an external thread is arranged on the outer side wall of the positioning sleeve, an internal thread is arranged on the upper end of the inner side wall of the sampling tube, and the upper end of the inner side wall of the sampling tube is in threaded connection with the outer side wall of the positioning sleeve. Further comprises an operation frame fixedly connec