A device and method for evaluating the rheological properties of a liquid

Abstract

The application discloses a liquid rheological property evaluation device and method, and belongs to the technical field of oil and gas drilling. The liquid rheological property evaluation device comprises a supporting component, a shaft body component, one end of which is assembled to the closed end of the supporting component, the other end of which extends along an axis O and passes out from the opening end of the supporting component, and the shaft body component is configured to rotate relative to the supporting component; a rotating component, which is configured to rotate relative to the supporting component; an outer cylinder component; an inner cylinder component, which is assembled to one end of the shaft body component; and a temperature assembly. The supporting component is designed as the mounting carrier of the shaft body component and the rotating component, and the opening end of the supporting shaft body is closed by the outer cylinder component which is assembled to the axial one end of the rotating component and is configured to rotate synchronously with the rotating component, so that an experimental interval is constructed. At this time, the experiment can be completed by only exerting a rotating driving force on the rotating component, and the defect that the closed environment can only be constructed by magnetic force driving in the prior art is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of oil and gas drilling, and particularly relates to a device and method for evaluating the rheological properties of liquid. Background Art

[0002] During oil extraction and geological drilling, the viscosity of mud under high temperature and high pressure conditions is the ratio of shear rate to shear stress. Viscosity can reflect the pumpability of cement slurry and its ability to suspend solid phase during cementing during drilling, thus ensuring drilling safety.

[0003] Existing high-temperature and high-pressure rheometers generally use magnetic drive to transmit the rotational speed to achieve a high-pressure closed environment. Magnetic drive has the disadvantages of inaccurate speed control and overly complicated operation. Summary of the Invention

[0004] The object of the present invention is to provide a device and method for evaluating the rheological properties of liquids, so as to solve the problems encountered by the rheometer in the use process mentioned in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: a liquid rheological properties evaluation device, comprising:

[0006] a support member extending along the axis O and having an axial closed end and an open end;

[0007] a shaft member, one end of which is assembled to the closed end of the support member, the other end of which extends along the axis O and passes through the open end of the support member, and the shaft member is configured to be rotatable relative to the support member;

[0008] a rotating member, mounted on a radially outer side of the supporting member and configured to rotate relative to the supporting member;

[0009] An outer cylinder component is assembled at one end of the rotating component and is configured to rotate synchronously with the rotating component, and an experimental area for accommodating a sample is defined in the outer cylinder component;

[0010] an inner cylinder component, disposed in the experimental area, the inner cylinder component being assembled on one end of the shaft component and configured to rotate synchronously with the shaft component;

[0011] A temperature component is configured to control the temperature of the sample in the experimental interval.

[0012] Preferably, the device further comprises:

[0013] The torque sensor is assembled at the upper end of the shaft component. The side wall of the support component is provided with an opening for the torque sensor signal line to pass through, and a seal is formed at the opening position.

[0014] Preferably, a pressure port is provided on the side wall of the support component, and the sample in the experimental area is pressurized through the pressure port, and the pressure is controlled by a regulating valve.

[0015] Preferably, the temperature component includes:

[0016] a temperature sensor configured to measure the temperature of the sample within the experimental interval;

[0017] A heating sleeve covering the outer side of the outer cylinder component;

[0018] The heat-insulating sleeve is covered on the outside of the heating sleeve.

[0019] Preferably, the temperature sensor is configured to extend along the axis O, and one end of the temperature sensor passes through the shaft component and the inner cylinder component in sequence.

[0020] Preferably, the heating jacket and the heat-insulating jacket are both configured to be linearly movable along the axis O direction.

[0021] Preferably, the supporting component and the rotating component achieve relative rotation via a bearing.

[0022] Preferably, the contact surface parts between the supporting component and the rotating component are provided with a dynamic sealing structure.

[0023] Preferably, the dynamic sealing structure is one of a pan seal structure, a flap skeleton oil seal, a flap type oil seal or a spring energy storage seal.

[0024] Preferably, the rotating component is driven by a driving structure, and the driving structure includes:

[0025] A driven component sleeved on the rotating component;

[0026] The active component is coupled to the driven component and connected to the output end of the external power source. The rotational driving force of the external power source acts on the driven component via the active component.

[0027] Preferably, the active component and the driven component are both pulleys, and the active component and the driven component are connected by a transmission belt.

[0028] Preferably, there is a gap between the inner wall of the support component and the outer wall of the shaft component.

[0029] Preferably, a plurality of bearings arranged at axial intervals are installed in the gap between the support component and the shaft component.

[0030] Preferably, the device further comprises an anti-climbing rod structure, which is assembled on the shaft component and located above the inner cylinder component, and a first thread structure having a rotation direction opposite to the first direction is formed on the outer wall of the anti-climbing rod structure.

[0031] Preferably, the inner wall of the lower end of the anti-climbing rod structure is formed with a second thread structure whose rotation direction is opposite to the first direction.

[0032] Preferably, the device further comprises a box component, the box component comprises a main body portion and an extension portion, and the support component is mounted on the extension portion.

[0033] A method for evaluating the rheological properties of a liquid, the method being implemented based on the above-mentioned device, the method comprising:

[0034] Prepare samples and pre-treat them;

[0035] Assemble the device and place the pretreated samples in the experimental area;

[0036] Set up experimental conditions and measure sample viscosity.

[0037] Preferably, the setting of experimental conditions includes setting experimental temperature, experimental pressure and experimental rotation speed data.

[0038] Preferably, setting the experimental conditions and measuring the sample viscosity include setting the experimental temperature and experimental pressure to standard values, measuring the sample viscosity under different experimental rotation speed conditions, and obtaining corresponding shear rate-viscosity data curves.

[0039] Preferably, setting the experimental conditions and measuring the sample viscosity include setting the experimental temperature and experimental rotation speed to standard values, measuring the sample viscosity under different experimental pressure conditions, and obtaining corresponding pressure-viscosity data curves.

[0040] Preferably, setting the experimental conditions and measuring the sample viscosity includes setting the experimental pressure and the experimental rotation speed to standard values, measuring the sample viscosity under different experimental temperature conditions, and obtaining corresponding temperature-viscosity data curves.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present application designs a supporting component as a mounting carrier for the shaft component and the rotating component, and uses an outer cylinder component assembled at one axial end of the rotating component and configured to rotate synchronously with the rotating component to close the open end of the supporting shaft to construct an experimental interval. At this time, the experiment can be completed by simply applying a rotational driving force to the rotating component, avoiding the disadvantage of the existing technology that a closed environment can only be constructed by magnetic drive, and simplifies the experimental operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the overall structure of the evaluation device;

[0044] Figure 2Schematic diagram of the position structure of the support components of the evaluation device Figure 1 ;

[0045] Figure 3 Schematic diagram of the position structure of the support components of the evaluation device Figure 2 ;

[0046] Figure 4 This is a schematic diagram of the anti-climbing pole structure.

[0047] In the picture:

[0048] 100, box body; 101, main body; 102, extension;

[0049] 200, support member; 200a, first mounting portion; 200b, flange portion; 200c, second mounting portion; 201, measurement section;

[0050] 300, rotating component; 300a, first step portion; 300b, second step portion; 300c, third step portion; 301, dynamic sealing structure;

[0051] 400, outer cylinder component; 400a, threaded portion; 401, experimental area;

[0052] 500, driving structure; 501, active component; 502, driven component; 503, power source;

[0053] 600, shaft component; 601, inner cylinder component;

[0054] 700, anti-climbing pole structure; 700a, first section; 700b, blocking section; 700c, second section; 701, first thread structure; 702, second thread structure; 703, opening;

[0055] 800, heating sleeve; 801, insulation sleeve; 802, measuring component; 803, pressurization port; 804, torque sensor. DETAILED DESCRIPTION

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] A liquid rheological properties evaluation device (hereinafter referred to as the evaluation device) is used to measure the viscosity of a fluid (such as a drilling fluid or a fracturing fluid). Figure 1The evaluation device includes a box component 100, which has a main body 101 and an extension portion 102, wherein the main body 101 is roughly configured as a rectangular parallelepiped component, and the extension portion 102 is formed by extending the top surface of the main body 101 in the horizontal direction.

[0058] Reference Figure 1 、 2 and 3, the evaluation device includes a support member 200, the support member 200 is mounted on the extension portion 102 of the support member 200, and is generally constituted as a hollow cylindrical member extending along the axis O, and the support member 200 is closed at one end in the axial direction, that is, the support member 200 has an axial closed end and an open end, back to Figure 2The evaluation device further includes a drive assembly, which includes a rotating component 300. The rotating component 300 is assembled on the radially outer side of the support component 200 and is configured to rotate along the axis O, that is, the rotating component 300 can rotate relative to the support component 200. In some embodiments, the support component 200 has a first mounting portion 200a, a flange portion 200b, and a second mounting portion 200c arranged in sequence in the axial direction, wherein the flange portion 200b is configured to extend radially outward relative to the first mounting portion 200a and the second mounting portion 200c, that is, the flange portion The outer diameter of 200b is greater than the outer diameter of the first mounting portion 200a and the second mounting portion 200c. Correspondingly, the rotating component 300 is configured as a stepped sleeve-shaped component. Specifically, the rotating component 300 has a first stepped portion 300a, a second stepped portion 300b and a third stepped portion 300c arranged in sequence in the axial direction. The thicknesses of the first stepped portion 300a, the second stepped portion 300b and the third stepped portion 300c in the radial direction are substantially the same, and the outer diameters of the first stepped portion 300a, the second stepped portion 300b and the third stepped portion 300c gradually decrease. When the support component 200 and the rotating component 300 are assembled, the inner wall of the second step portion 300b of the rotating component 300 fits with the outer wall of the flange portion 200b of the supporting component 200. Correspondingly, an interval for assembling components such as bearings is formed between the inner wall of the first step portion 300a and the outer wall of the first mounting portion 200a. For example, the bearing is a deep groove ball bearing. By assembling the bearing between the rotating component 300 and the supporting component 200, the relative rotation between the rotating component 300 and the supporting component 200 is achieved. Furthermore, the rotating component When the rotating component 300 and the support component 200 are assembled, the inner wall of the third step portion 300c of the rotating component 300 and the outer wall of the second mounting portion 200c of the support component 200 are in contact with each other, and a dynamic seal is formed between the contact surfaces of the third step portion 300c and the support component 200. In some examples, the dynamic seal is configured as one of a pan-seal seal structure, a lip skeleton oil seal, a lip oil seal, or a spring energy storage seal. Exemplarily, the dynamic seal structure 301 is made of Teflon (PTFE) material and can operate in an environment of 200°C and 0-70 MPa.

[0059] Continue to refer to Figure 2 and 3The driving assembly further comprises an outer cylinder component 400, wherein the outer cylinder component 400 is formed with a test area having an open end, and the outer cylinder component 400 is assembled at one axial end of the rotating component 300 and is configured to rotate synchronously with the rotating component 300. In some embodiments, the outer cylinder component 400 and the supporting component 200 are threadedly connected. For example, the outer cylinder component 400 has a threaded portion 400a, and the inner wall of the threaded portion 400a is provided with an internal thread. Correspondingly, the outer wall of the rotating component 300 is provided with an external thread adapted thereto. The outer cylinder component 400 and the supporting component 200 are disassembled and assembled by screwing in and out of the outer cylinder component 400. Figure 2 The inner wall of the outer cylinder component 400 has a portion that fits against the outer wall of the third step portion 300c of the rotating component 300, and a groove for accommodating a sealing ring is formed on the outer wall of the third step portion 300c. The sealing ring (such as a perfluoroether rubber sealing ring that can maintain sealing performance under high temperature conditions) is used to achieve sealing between the step portion and the contact surface of the outer cylinder component 400;

[0060] Reference Figure 3 The driving assembly further includes a driving structure 500, which is configured as a power source 503 of the rotating component 300. Specifically, the driving structure 500 includes a driven component 502 sleeved on the outer wall of the rotating component 300 and an active component 501 directly connected to the output end of the external power source 503. The driven component 502 and the active component 501 are coupled, that is, the rotational driving force of the external power source 503 acts on the driven component 502 via the active component 501 to drive the driven component 502, the rotating component 300 and the outer cylinder component 400 to rotate synchronously. For example, the power source 503 is a servo motor. , the servo motor is connected to the subsequent control component through the RS232 communication interface and communicates through the Morgan protocol or the MODELBUS protocol. At the same time, the operating voltage of the servo motor is 180V~230V, and the operating temperature is between -10℃ and 70℃. Correspondingly, in some embodiments, the above-mentioned active component 501 and the driven component 502 are both configured as pulleys, and the two realize force transmission through a synchronous belt. In other examples, the above-mentioned active component 501 and the driven component 502 are configured as meshing gears. For the convenience of description, the rotation direction of the rotating component 300 and the outer cylinder component 400 will be recorded as the first direction in the following.

[0061] The evaluation device also includes a driven component, referring to Figure 3The driven assembly includes a shaft component 600 and an inner cylinder component 601, wherein one end of the shaft component 600 is assembled to the closed end of the support component 200, and the other end of the shaft component 600 extends along the axis O and passes through the open end of the support component 200 to connect to the inner cylinder component 601. In some embodiments, there is a gap between the outer wall of the shaft component 600 and the inner wall of the support component 200, and a plurality of bearings are installed at the corresponding positions of the gaps to allow relative rotation between the shaft component 600 and the support component 200 and maintain the coaxiality of the shaft component 600 and the support component 200. Figure 3 The inner cylinder component 601 is located in the test area inside the outer cylinder component 400 and is separated from the outer cylinder component 400. During the operation of the evaluation device, the rotation of the outer cylinder component 400 is transmitted to the inner cylinder component 601 through the liquid, and the rotation of the inner cylinder component 601 and the shaft component 600 itself is induced.

[0062] Reference Figure 4 , the above-mentioned evaluation device also includes an anti-climbing rod structure 700, which is installed on the shaft component 600 and is located above the inner cylinder component 601. The anti-climbing rod structure 700 is configured to prevent the liquid in the test interval from rising along the shaft component 600 during the operation of the evaluation device. In some embodiments, the above-mentioned anti-climbing rod structure 700 is sleeved on the shaft component 600. Specifically, the anti-climbing rod structure 700 extends roughly along the axial direction O and has an axial first end and a second end. In some embodiments, the anti-climbing rod structure 700 is formed with a plurality of circumferentially distributed openings 703 at the first end position to allow the anti-climbing rod structure to undergo elastic deformation at the first end position, thereby simplifying the assembly and disassembly operations between the anti-climbing rod device and the shaft component 600. Exemplarily, the above-mentioned anti-climbing rod device is provided with four openings 703 at the first end position, and adjacent openings 703 are arranged at 90° in the circumferential direction. Further, referring to Figure 4 , wherein the first end constitutes the upper end, the second end constitutes the lower end, and the above-mentioned anti-climbing pole structure 700 has a first section 700a, a blocking section 700b and a second section 700c arranged in sequence from top to bottom in the axial direction, wherein the blocking section 700b extends radially outward relative to the first section 700a and the second section 700c, that is, the outer diameter of the blocking section 700b is larger than the outer diameters of the first section 700a and the second section 700c, and at the same time, the first section 700a and the blocking section 700b are smoothly connected, that is, the outer diameter of the anti-climbing pole structure 700 gradually increases along the axial direction between the first section 700a and the blocking section 700b. In some examples, the connecting portion of the blocking section 700b and the first section 700a is roughly in the shape of a truncated cone, returning to Figure 4The above-mentioned anti-climbing rod structure 700 is provided with a first thread structure 701 on the outer wall of the blocking section 700b, and the rotation direction of the first thread structure 701 is opposite to the first direction (i.e., the rotation direction of the outer cylinder component 400). During the rotation of the shaft component 600 with the outer cylinder component 400, the liquid that rises to the position of the first thread structure 701 as the shaft component 600 rotates descends along its thread structure to prevent the liquid from further rising; in other embodiments of the anti-climbing rod structure 700, the inner wall of the above-mentioned first section 700a is formed with a second spiral structure 702, and the rotation direction of the second thread structure is also opposite to the first direction to prevent the liquid from rising through the gap between the inner wall of the anti-climbing rod structure 700 and the outer wall of the shaft component 600, refer to Figure 4 In some embodiments, the anti-climbing pole structure 700 has a plurality of sealing grooves for installing sealing rings spaced apart in the axial direction on the outer wall of the first section 700a, and serves as a fixed structure at this position.

[0063] Reference Figure 1 、 2 And 3, the above-mentioned evaluation device also includes a temperature component. In some embodiments, the temperature component includes a heating sleeve 800 and a heat-insulating sleeve 801, wherein the heating sleeve 800 is coated on the outside of the outer cylinder component 400 and is configured to heat the outer cylinder component 400 and the liquid in the outer cylinder component 400 so that the liquid reaches a preset test temperature. Correspondingly, the heat-insulating sleeve 801 is coated on the outside of the test sleeve, which can keep the liquid at the set temperature during the test and reduce the heat loss during the liquid heating process, returning to Figure 3 The temperature component further includes a measuring component 802, which is configured to measure liquid data. For example, the measuring component 802 is a temperature sensor and is configured to extend along the axis O. For example, the temperature sensor is made of 304 stainless steel and is provided with an Inconel or Super The sheath is made of OMEGACLAD material, and the shaft component 600 and the inner cylinder component 601 are provided with a hole extending along the axis O for inserting the temperature sensor. One end of the temperature sensor enters from the closed end of the support component 200, extends downward along the axial direction O and passes through the lower end of the inner cylinder component 601, and contacts the liquid in the test interval to realize the measurement of the liquid temperature. Furthermore, the heating sleeve 800 and the measuring component 802 are both connected to the external control component. Specifically, the control component has a temperature control module. For example, the temperature control module has a display panel for displaying the liquid temperature in real time. At the same time, a thermal control switch is provided on the display panel for manually controlling whether the heating sleeve 800 is heated or not. At the same time, the temperature control module can realize automatic control of the heating sleeve 800 (such as PID control) and maintain the heating temperature of the heating sleeve 800 at a stable value.

[0064] In other embodiments of the temperature assembly, the heating sleeve 800 and the thermal insulation sleeve 801 are configured to be able to move linearly along the axis O to control the heating sleeve 800 and the thermal insulation sleeve 801 to contact or disengage from the outer cylinder component 400, so as to simplify the disassembly and assembly of the protective sleeve and the outer cylinder component 400. In some examples, the heating sleeve 800 and the thermal insulation sleeve 801 are driven by a screw transmission system.

[0065] Reference Figure 3 The evaluation device further includes a measuring assembly, which includes a torque sensor 804 mounted on the upper end of the shaft component 600. In some examples, a measuring section 201 is formed in the support component 200, and the torque sensor 804 is disposed in the measuring section 201. A hole for the torque sensor 804 to pass through is provided on the sidewall of the measuring section 201, and a sealing structure is provided at the hole position to maintain the sealing of the position. The torque sensor 804 is configured to detect the rotation angle of the shaft component 600 and obtain the torque data of the shaft component 600 accordingly. Figure 3 The above-mentioned measuring component also includes a pressurizing structure, which includes a pressurizing port 803 formed on the side wall of the supporting component 200. The pressurizing port 803 is connected to the external pressure supply equipment through a pipeline, and auxiliary components such as a pressure regulating valve, a pressure gauge and a pressure relief valve are correspondingly provided on the pipeline. The pressure gauge is used to display the pressure data in real time and adjust the pressure through the pressure regulating valve. The pressure relief valve is used to realize the pressure relief operation of the evaluation device after completion.

[0066] The present application also provides a method for evaluating the rheological properties of a liquid, which is based on the above-mentioned evaluation device and specifically includes:

[0067] S100: prepare samples and pre-treat them;

[0068] S200: Assemble the device and place the pretreated sample in the experimental area 401;

[0069] S300: Set experimental conditions and measure sample viscosity.

[0070] In the step of preparing experimental samples, the samples can be drilling fluid samples, fracturing fluid samples, or simple xanthan gum, guar gum and other samples; the sample capacity is selected based on the specifications of the inner cylinder component 601 and the outer cylinder component 400. For example, if the sample capacity is 42ml or 52ml, the sample pretreatment process includes stirring the sample, that is, using an instrument such as a variable frequency high-speed stirrer to stir the sample evenly. The pretreatment process also includes aging treatment after stirring, that is, placing the sample in a roller furnace for aging, or allowing the sample to age naturally at room temperature.

[0071] In step S200, the pretreated sample is first placed in the experimental area 401 in the outer cylinder component 400, and then the outer cylinder component 400 containing the sample is installed on the rotating component 300 to complete the assembly of the device. At the same time, in this step, the device needs to be cleared, that is, the residual sample in the device is cleaned before the experiment begins (such as cleaning the samples on the outer cylinder component 400 and the inner cylinder component 601). During the clearing operation, it is preferably to remove the outer cylinder component 400 and perform the cleaning operation. Furthermore, in this step, it is also necessary to detect the sealing of each connection position of the device, such as the sealing of the sealing ring installation position.

[0072] In step S300, experimental conditions are set, including experimental temperature, experimental pressure, and experimental speed data. Sample viscosity is measured based on torque data measured by the torque sensor 804 and calculated by a computer in an external control component. The computer data processing principle is based on Newton's law of internal friction of fluids:

[0073] ηN=S×0××f×C

[0074] S is the speed factor, θ is the dial direct reading, f is the spring elasticity factor, C is the inner and outer cylinder factors, and ηN is the Newtonian fluid viscosity value, unit is centipoise (cP).

[0075] At the same time, in step S300, the experimental pressure is adjusted by the regulating valve and displayed in real time by the pressure gauge. The experimental temperature is controlled by whether the heating sleeve 800 is heated or not and is measured by the temperature sensor; the experimental speed is controlled by the speed of the external power source 503 (such as a motor).

[0076] In some embodiments, setting experimental conditions and measuring sample viscosity includes setting the experimental temperature and experimental pressure to standard values, measuring the sample viscosity under different experimental rotation speed conditions, and obtaining corresponding shear rate-viscosity data curves.

[0077] In this embodiment, since the sample (such as drilling fluid) is generally a plastic fluid, the sample viscosity is related to the shear rate. For example, when the rotational speed is selected as 600, 300, 200, 100, 6 or 3 revolutions per minute, the corresponding shear rate is the rotational speed multiplied by 1.7, that is, 1020, 510, 340, 170, 10.2 and 5.1 seconds. That is, by setting the experimental rotational speed value, different shear rates are obtained and the viscosity measurement is completed. Specifically, in this step, when the experimental pressure and temperature reach the set values, the experiment is started. The operator can input different rotational speeds according to the experimental design, corresponding to different shear rates, and observe the corresponding viscosity changes of the sample at different rotational speeds. According to the experimental data, a shear rate-viscosity curve can be drawn.

[0078] In some embodiments, setting experimental conditions and measuring sample viscosity includes setting the experimental temperature and experimental rotation speed to standard values, measuring the sample viscosity under different experimental pressure conditions, and obtaining corresponding pressure-viscosity data curves.

[0079] In some embodiments, setting experimental conditions and measuring sample viscosity includes setting the experimental pressure and experimental rotation speed to standard values, measuring the sample viscosity under different experimental temperature conditions, and obtaining corresponding temperature-viscosity data curves.

[0080] In some embodiments, the above method also includes performing cooling and pressure relief operations after the experiment, and shutting down after the cooling and pressure relief operations, wherein the cooling operation is performed before the pressure relief operation. Specifically, the pressure relief operation can only be performed when the temperature is less than 60°C.

[0081] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for evaluating liquid rheological properties, characterized in that: include: a support member extending along the axis O and having an axial closed end and an open end; a shaft member, one end of which is assembled to the closed end of the support member, the other end of which extends along the axis O and passes through the open end of the support member, and the shaft member is configured to be rotatable relative to the support member; a rotating member, mounted on a radially outer side of the supporting member and configured to rotate relative to the supporting member; an outer cylinder component, assembled at one end of the rotating component and configured to rotate synchronously with the rotating component, and wherein the outer cylinder component defines an experimental area for accommodating a sample; an inner cylinder component, disposed in the experimental area, the inner cylinder component being assembled on one end of the shaft component and configured to rotate synchronously with the shaft component; a temperature component configured to control the temperature of the sample in the experimental interval; a torque sensor, mounted on the upper end of the shaft component; The anti-climbing rod structure is assembled on the shaft component and located above the inner cylinder component, and includes: a barrier section, wherein a first thread structure having a rotation direction opposite to a first direction is formed on an outer wall of the barrier section, and the first direction is a rotation direction of the outer cylinder component; The second section is located below the blocking section, and an inner wall of the second section is provided with a second thread structure having a rotation direction opposite to the first direction.

2. The liquid rheological properties evaluation device according to claim 1, characterized in that: The side wall of the support component is provided with an opening for the torque sensor signal line to pass through, and a seal is formed at the opening position.

3. A liquid rheological properties evaluation device according to claim 1 or 2, characterized in that: The side wall of the support component is provided with a pressurizing port, through which the sample in the experimental area is pressurized, and the pressure is controlled by a regulating valve.

4. The liquid rheological properties evaluation device according to claim 1, characterized in that: The temperature component includes: a temperature sensor configured to measure the temperature of the sample within the experimental interval; A heating sleeve covering the outer side of the outer cylinder component; The heat-insulating sleeve is covered on the outside of the heating sleeve.

5. The liquid rheological properties evaluation device according to claim 4, characterized in that: The temperature sensor is configured to extend along the axis O, and one end of the temperature sensor sequentially passes through the shaft member and the inner cylinder member.

6. A liquid rheological properties evaluation device according to claim 4 or 5, characterized in that: The heating jacket and the heat-insulating jacket are both configured to be linearly movable along the axis O direction.

7. The liquid rheological properties evaluation device according to claim 1, characterized in that: The supporting component and the rotating component realize relative rotation via a bearing.

8. A liquid rheological properties evaluation device according to claim 1 or 7, characterized in that: The contact surfaces of the supporting component and the rotating component are provided with a dynamic sealing structure.

9. The liquid rheological properties evaluation device according to claim 8, characterized in that: The dynamic sealing structure is one of a pan seal structure, a flap skeleton oil seal, a flap type oil seal or a spring energy storage seal.

10. The liquid rheological properties evaluation device according to claim 1, characterized in that: The rotating component is driven by a driving structure, which includes: A driven component sleeved on the rotating component; The active component is coupled to the driven component and connected to the output end of the external power source. The rotational driving force of the external power source acts on the driven component via the active component.

11. The liquid rheological properties evaluation device according to claim 10, characterized in that: The active component and the driven component are both pulleys, and the active component and the driven component are connected by a transmission belt.

12. The liquid rheological properties evaluation device according to claim 1, characterized in that: There is a gap between the inner wall of the supporting component and the outer wall of the shaft component.

13. The liquid rheological properties evaluation device according to claim 12, characterized in that: A plurality of bearings arranged at intervals along the axial direction are assembled in the gap between the support component and the shaft component.

14. The liquid rheological property evaluation device according to claim 1, characterized in that: The device further comprises a box component having a main body portion and an extension portion, wherein the support component is mounted on the extension portion.

15. A method for evaluating the rheological properties of a liquid, characterized by: The method is implemented based on the device according to any one of claims 1 to 14, and the method includes: Prepare samples and pre-treat them; Assemble the device and place the pretreated samples in the experimental area; Set up experimental conditions and measure sample viscosity.

16. A method for evaluating rheological properties of liquids according to claim 15, characterized in that: The setting of the experimental conditions includes setting the experimental temperature, experimental pressure and experimental rotation speed data.

17. A method for evaluating liquid rheological properties according to claim 16, characterized in that: The setting of experimental conditions and measuring the sample viscosity include setting the experimental temperature and experimental pressure to standard values, measuring the sample viscosity under different experimental rotation speed conditions, and obtaining corresponding shear rate-viscosity data curves.

18. The method for evaluating rheological properties of a liquid according to claim 16, wherein: The setting of the experimental conditions and measuring the sample viscosity include setting the experimental temperature and the experimental rotation speed to standard values, measuring the sample viscosity under different experimental pressure conditions, and obtaining corresponding pressure-viscosity data curves.

19. The method for evaluating rheological properties of a liquid according to claim 16, wherein: The setting of the experimental conditions and measuring the sample viscosity include setting the experimental pressure and the experimental rotation speed to standard values, measuring the sample viscosity under different experimental temperature conditions, and obtaining corresponding temperature-viscosity data curves.

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