Novel set cement expansion testing device

Abstract

The utility model relates to a novel set cement expansion testing device which comprises a bottom plate, the top of the bottom plate is fixedly provided with a square frame, the top of the square frame is provided with a cover plate, and the cover plate is provided with a temperature adjusting assembly used for adjusting the temperature of an inner cavity of the square frame; a telescopic rod is fixedly installed on the left side of an inner cavity of the square frame, and a partition plate is fixedly installed at one end of the telescopic rod and slidably connected into the square frame. The temperature adjusting assembly comprises a refrigerator and a hose, the refrigerator is fixedly installed on the left side of the top of the bottom plate, the hose is fixedly installed at an air outlet of the refrigerator, and one end of the hose is fixedly installed on the left side of the cover plate. According to the utility model, the cover plate is arranged above the square frame, and the temperature adjusting assembly is arranged on the cover plate, so that when the expansion of the set cement is tested, the temperature in the square frame can be adjusted, and the expansion of the set cement can be tested at various temperatures; therefore, the testing accuracy of the cement stone expansion can be improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement stone expansion test technical field, concretely is a novel cement stone expansion test device. BACKGROUND

[0002] In the cementing construction of oil, the good cementation between cement sheath and formation, casing is the basis of realizing effective interlayer packer, if interface cementation is poor, will influence normal production of oil well and implementation of subsequent stimulation measures, its cause interlayer communication or crossflow many, such as: cement slurry channeling, residual filter cake is too thick, casing thermal expansion, cement sheath volume shrinkage etc., among them, cement sheath shrinkage or deformation not only makes interface cementation poor stratum packer failure, simultaneously due to the increase of cement stone microslit and causes cement stone overall performance, such as anti-permeation capacity, corrosion resistance, compression strength drop etc., in order to solve the deformation of cement stone after hardening, many oil companies will select adding expansion agent in cement slurry to prevent its shrinkage deformation, and after adding expansion agent in cement slurry, usually test the expansion of cement stone.

[0003] But the existing test device can usually only test the expansion of cement stone under natural environment, cannot test the expansion of cement stone under multiple temperature environments, and then will influence the test accuracy of cement stone expansion to some extent. Therefore, a novel cement stone expansion test device is designed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a novel cement stone expansion test device, which can solve the above-mentioned problems.

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0006] A novel cement stone expansion test device, comprising a bottom plate, a square frame is fixedly installed on the top of the bottom plate, a cover plate is arranged on the top of the square frame, a temperature adjusting assembly for adjusting the temperature of the inner cavity of the square frame is arranged on the cover plate;

[0007] A telescopic rod is fixedly installed on the left side of the inner cavity of the square frame, a partition plate is fixedly installed on one end of the telescopic rod, and the partition plate is slidingly connected in the square frame;

[0008] The temperature adjusting assembly comprises:

[0009] A refrigerator is fixedly installed on the top left side of the bottom plate;

[0010] A hose with a valve is arranged, the air outlet of the refrigerator is fixedly installed with the hose, and one end of the hose is fixedly installed on the left side of the cover plate.

[0011] Preferably, the temperature control component further includes:

[0012] A hollow tube with a valve is fixedly installed on the left side of the cover plate;

[0013] A fan, which is fixedly installed in the middle of the inner cavity of a hollow tube;

[0014] An electric heating wire is fixedly installed at the bottom of the inner cavity of the hollow tube, and the electric heating wire is arranged in a spring-like manner.

[0015] The vent pipe is equipped with a valve, and the vent pipe is fixedly installed at the bottom left side of the frame;

[0016] A temperature sensor is fixedly mounted on the bottom of the cover plate.

[0017] Preferably, the telescopic rod is fitted with a spring, and the two ends of the spring are fixedly connected to the left inner wall of the frame and the left side of the partition, respectively.

[0018] Preferably, a first sealing ring is provided at the abutment of the partition, the frame, and the bottom plate, and a second sealing ring is provided at the abutment of the frame and the cover plate.

[0019] Preferably, the top of the inner cavity of the frame is provided with a first scale, and the right side of the partition is provided with a second scale.

[0020] Preferably, cylinders are fixedly installed at both ends of the top of the base plate, and the piston rods of the cylinders are fixedly installed with cover plates.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By installing a cover plate on top of the frame and a temperature regulating component on the cover plate, the temperature inside the frame can be adjusted when testing the expansion of cement stone, so that the expansion of cement stone can be tested at various temperatures, thereby improving the accuracy of the cement stone expansion test to a certain extent. Attached Figure Description

[0023] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a top view of a partial structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the base plate, partition, and frame structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the partition structure of this utility model.

[0027] In the figure: base plate 10, telescopic rod 11, spring 12, partition 13, first sealing ring 14, first scale 15, second scale 16, second sealing ring 17, square frame 20, cover plate 30, cylinder 31, refrigeration unit 40, hose 41, hollow tube 42, fan 43, electric heating wire 44, vent pipe 45, temperature sensor 46. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] This utility model provides a novel cement stone expansion testing device. Please refer to [link / reference]. Figures 1-4 The system includes a base plate 10, a square frame 20 fixedly mounted on the top of the base plate 10, a cover plate 30 on the top of the square frame 20, a telescopic rod 11 fixedly mounted on the left side of the inner cavity of the square frame 20, a partition plate 13 fixedly mounted on one end of the telescopic rod 11 and slidably connected in the square frame 20, a spring 12 sleeved on the telescopic rod 11, and the two ends of the spring 12 fixedly connected to the left inner wall of the square frame 20 and the left side of the partition plate 13 respectively, a first sealing ring 14 is provided at the abutment of the partition plate 13, the square frame 20 and the base plate 10, a second sealing ring 17 is provided at the abutment of the square frame 20 and the cover plate 30, a first scale 15 is provided at the top of the inner cavity of the square frame 20, a second scale 16 is provided on the right side of the partition plate 13, and cylinders 31 are fixedly mounted on both ends of the top of the base plate 10, with the cover plate 30 fixedly mounted on the piston rod of the cylinder 31.

[0030] The cover plate 30 is provided with a temperature regulating component for adjusting the internal temperature of the frame 20.

[0031] The temperature control assembly includes: a refrigerator 40, a flexible hose 41 with a valve thereon, a hollow tube 42 with a valve thereon, a fan 43, an electric heating wire 44, a vent pipe 45 with a valve thereon, and a temperature sensor 46.

[0032] The refrigeration unit 40 is fixedly installed on the top left side of the base plate 10. A flexible hose 41 is fixedly installed at the air outlet of the refrigeration unit 40. The flexible hose 41 is fixed to the air outlet of the refrigeration unit 40 through an air collector cover, and one end of the flexible hose 41 is fixedly installed on the left side of the cover plate 30. The hollow tube 42 is fixedly installed on the left side of the cover plate 30. The fan 43 is fixedly installed in the middle of the inner cavity of the hollow tube 42. An electric heating wire 44 is fixedly installed at the bottom of the inner cavity of the hollow tube 42, and the electric heating wire 44 is arranged in a spring-like manner. A vent pipe 45 is fixedly installed at the bottom left side of the frame 20. The temperature sensor 46 is fixedly installed at the bottom of the cover plate 30. The length of the flexible hose 41 is provided with a margin and can be set according to requirements.

[0033] In practical use, the specific steps are as follows:

[0034] Cement slurry and expanding agent are placed in the right space of the frame 20. After placement, the cement slurry and expanding agent are mixed. After mixing, the cover plate 30 is lowered by the cylinder 31 until the cover plate 30 and the frame 20 are in close contact. Then, the temperature in the frame 20 is adjusted by the temperature control component. After adjustment, if the cement slurry hardens into cement stone, the cover plate 30 and the frame 20 are separated by the cylinder 31. After separation, the first scale 15 and the second scale 16 are observed. The volume of the cement stone is judged based on the observed values ​​of the first scale 15 and the second scale 16. Thus, the expansion of the cement stone is tested.

[0035] When it is necessary to lower the temperature in the box 20, the refrigerator 40 will be activated. When the refrigerator 40 is running, the cold air it generates will flow into the box 20 through the hose 41 to cool the temperature in the box 20 until the required temperature is reached.

[0036] When it is necessary to increase the temperature in the box 20, the fan 43 will be activated to draw outside air into the hollow tube 42. When the air is in the hollow tube 42, it will be heated by the electric heating wire 44. The heated air will then flow into the box 20 to raise the temperature in the box 20 until the required temperature is reached.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel cement stone expansion testing device, comprising a base plate (10), wherein a square frame (20) is fixedly installed on the top of the base plate (10), characterized in that, The top of the frame (20) is provided with a cover plate (30), and the cover plate (30) is provided with a temperature regulating component for adjusting the internal temperature of the frame (20); A telescopic rod (11) is fixedly installed on the left side of the inner cavity of the frame (20), and a partition (13) is fixedly installed on one end of the telescopic rod (11), and the partition (13) is slidably connected in the frame (20); The temperature control component includes: A refrigeration unit (40) is fixedly installed on the top left side of the base plate (10); The hose (41) with a valve is fixedly installed at the air outlet of the refrigeration unit (40), and one end of the hose (41) is fixedly installed on the left side of the cover plate (30).

2. The novel cement stone expansion testing device according to claim 1, characterized in that, The temperature control component also includes: A hollow tube (42) with a valve is fixedly installed on the left side of the cover plate (30); Fan (43), the fan (43) is fixedly installed on the middle part of the inner cavity of the hollow tube (42); Electric heating wire (44) is fixedly installed at the bottom of the inner cavity of the hollow tube (42), and the electric heating wire (44) is arranged in a spring shape; The vent pipe (45) with a valve is fixedly installed at the bottom left side of the frame (20). Temperature sensor (46) is fixedly mounted on the bottom of cover plate (30).

3. The novel cement stone expansion testing device according to claim 1, characterized in that, The telescopic rod (11) is fitted with a spring (12), and the two ends of the spring (12) are fixedly connected to the left inner wall of the frame (20) and the left side of the partition (13), respectively.

4. The novel cement stone expansion testing device according to claim 3, characterized in that, A first sealing ring (14) is provided at the abutment of the partition (13), the frame (20), and the bottom plate (10), and a second sealing ring (17) is provided at the abutment of the frame (20) and the cover plate (30).

5. The novel cement stone expansion testing device according to claim 4, characterized in that, The top of the inner cavity of the frame (20) is provided with a first scale (15), and the right side of the partition (13) is provided with a second scale (16).

6. The novel cement stone expansion testing device according to claim 1, characterized in that, Cylinders (31) are fixedly installed at both ends of the top of the base plate (10), and the piston rod of the cylinder (31) is fixedly installed with a cover plate (30).

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