Equipment and method for measuring thickness value of oil well cement under high-temperature and high-pressure conditions

Abstract

The invention belongs to the technical field of cement consistency detection, and particularly relates to equipment and a method for measuring an oil well cement consistency value under high-temperature and high-pressure conditions, and the equipment is characterized in that a box body is internally provided with a containing cavity, and a box cover is arranged at the top of the box body; the air inlet component is arranged on the box cover; the heating part is annularly arranged in the box body; the defoaming component is arranged at the bottom of the accommodating cavity; the storage part is arranged in the accommodating cavity; the stirring part is arranged on the box cover, and the rotating end penetrates through the box cover into the storage part. The stirring component is adopted to stir the to-be-detected liquid in the storage component, so that the temperature and the thickness of the to-be-detected liquid are average, meanwhile, the specific first rotating component and the specific second rotating component are adopted to further improve the stirring effect, and the defoaming component is additionally arranged to eliminate bubbles in the to-be-detected liquid, so that the detection precision is improved, and the detection efficiency is improved. The locking devices are arranged at the positions of the box cover and the box body, and a self-locking structure is formed through internal high pressure, so that stable operation of the whole equipment is guaranteed, and safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cement consistency detection, and particularly relates to an apparatus and method for measuring the consistency value of oil well cement under high temperature and high pressure conditions. Background Art

[0002] During the process of oil extraction, the consistency value of oil well cement is a key parameter affecting the quality of well cementing. The well cementing operation requires injecting cement slurry into the annular space between the wellbore wall and the casing, and the consistency of the cement slurry is directly related to its fluidity and filling effect. In the high temperature and high pressure environment of oil wells, the physical and chemical properties of cement will change significantly. Traditional cement consistency value detection equipment simulates the high temperature and high pressure environment to detect the consistency value of cement, but there are defects in the detection process, such as uneven internal temperature of cement, uneven thinness and thickness inside the cement, resulting in low detection accuracy, and a large number of microbubbles in the cement slurry further affect the detection accuracy.

[0003] Therefore, there is an urgent need for a device that can effectively simulate the high temperature and high pressure environment to make the cement slurry uniform, so as to improve the detection accuracy to meet the actual needs. Summary of the Invention

[0004] The purpose of the present invention is to provide an apparatus and method for measuring the consistency value of oil well cement under high temperature and high pressure conditions, so as to solve the technical problem of low detection accuracy caused by uneven internal temperature and uneven thinness and thickness of cement in traditional detection equipment.

[0005] To solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0006] In some embodiments of the present application, there is provided an apparatus and method for measuring the consistency value of oil well cement under high temperature and high pressure conditions, including:

[0007] A box body, inside which there is a receiving cavity with an open top;

[0008] A box cover, which is arranged on the top of the box body and forms a sealed chamber with the box body;

[0009] An air inlet component, which is arranged on the box cover, one end of which is connected to an external high-pressure air pump, and the other end penetrates through the box cover into the receiving cavity;

[0010] A heating component, which is arranged in a ring shape inside the box body;

[0011] An antifoaming component, which is arranged at the bottom of the receiving cavity and is fixedly connected to the box body;

[0012] A storage component, which is arranged in the receiving cavity and is connected to the antifoaming component at the bottom, and is detachably and fixedly connected to the box body;

[0013] A stirring member, which is provided on the box cover, and its rotating end penetrates through the box cover into the interior of the storage member.

[0014] In some embodiments of the present application, an annular protrusion is provided at the opening at the top of the box body, and an annular stepped groove is provided at the bottom of the box cover. The stepped groove is fitted with the annular protrusion. Among them, the box body and the box cover are connected and fixed by a locking member.

[0015] In some embodiments of the present application, the stirring member is a combined structure, including:

[0016] A first driving member, which is provided on the box cover and is fixedly connected to the box cover;

[0017] A first transmission member, which is provided in the accommodation cavity, one end of which is connected to the output end of the first driving member, and the other end is placed in the storage member;

[0018] A first rotating member, which is provided on the first transmission member and is fixedly connected to the first transmission member, and the two are arranged vertically;

[0019] A second rotating member, which is provided on the first transmission member and is located below the first rotating member, and is arranged obliquely with respect to the first transmission member.

[0020] In some embodiments of the present application, the first rotating member and the second rotating member are a combined structure, including:

[0021] A first rod, which is longitudinally arranged on the first transmission member, one end of which is fixedly connected to the first transmission member, and there is a distance between two adjacent first rods;

[0022] A second rod, which is arranged in an array on the first rod, and both ends of which are fixedly connected to the first rod, and there is a distance between two adjacent second rods.

[0023] In some embodiments of the present application, a locking member is provided between the box cover and the box body. The locking member is arranged in an annular array on the box cover and the box body. The locking member includes:

[0024] A first sliding groove, which is arranged in an annular array on the outside of the annular protrusion at the top of the box body, and a clamping groove is provided at the bottom of the first sliding groove;

[0025] A first air passage, which is arranged in an annular array on the box cover, and second sliding grooves are provided on both sides of the first air passage;

[0026] The first sliding member is disposed in the first air duct, which divides the first air duct into a first chamber and a second chamber. One end of the first chamber communicates with the accommodation chamber, and one end of the second chamber corresponds to the position of the clamping groove;

[0027] A slider is provided on the first sliding member, and the slider is slidably connected to the second sliding groove;

[0028] The first elastic member is symmetrically arranged in the second sliding groove. One end of the first elastic member is connected to the second sliding groove, and the other ends are respectively connected to the upper top surface and the lower top surface of the slider;

[0029] The second sliding member is disposed in the second chamber, and one end of the second sliding member penetrates through the second chamber and is engaged with the clamping groove;

[0030] The second elastic member is disposed in the second chamber. One end of the second elastic member is connected to the inner wall of the second chamber, and the other end is connected to the second sliding member;

[0031] The filling liquid is disposed between the first sliding member and the second sliding member in the second chamber.

[0032] In some embodiments of the present application, the defoaming member is a combined structure, including:

[0033] The housing is disposed at the bottom of the accommodation chamber. It is detachably fixedly connected to the box body. A rotating chamber is provided inside the housing, and a third sliding groove is provided at the top of the rotating chamber;

[0034] The second driving member is disposed in the rotating chamber and is fixedly connected to the housing;

[0035] The second transmission member is disposed at the output end of the second driving member, and a first connection end is provided thereon;

[0036] The third sliding member is disposed in the third sliding groove and is slidably connected to the third sliding groove. The top of the third sliding member penetrates through the third sliding groove and contacts the box body, and a second connection end is provided at the bottom;

[0037] One end of the third transmission member is hingedly connected to the first connection end of the second transmission member, and the other end is hingedly connected to the second connection end of the third sliding member.

[0038] In some embodiments of the present application, a sealing member is further provided on the base surface of the box cover and the box body; a sealing member is provided on the contact surface between the storage member and the box body.

[0039] In some embodiments of the present application, the storage member is an integral structure, and a cavity is provided inside the storage member, and symmetrically arranged lifting lugs are provided at the top thereof.

[0040] In some embodiments of the present application, a temperature detection component and a pressure detection component are provided on the box cover and the storage component, and an angular velocity detection component is provided at the center of the box cover.

[0041] In some embodiments of the present application, a method for measuring the consistency value of oil well cement under high temperature and high pressure conditions uses the above-mentioned device for measuring the consistency value of oil well cement under high temperature and high pressure conditions, and includes the following steps:

[0042] 1) Obtain the temperature and pressure parameters in the sealed cavity of the box body and the box cover, and at the same time obtain the temperature and pressure parameters in the liquid to be detected in the storage component;

[0043] 2) Compare the temperature parameter in the sealed cavity of the box body and the box cover with the temperature parameter in the liquid to be detected in the storage component to make the comparison value within the error range;

[0044] 3) After the comparison is completed, obtain the rotational angular velocity at the output end of the stirring component through the angular velocity detection component, and substitute it into to obtain the consistency value in the current liquid to be detected, where η is the consistency value in the liquid to be detected, K is the parameter of the stirring component, T is the torque of the stirring component, and ω is the rotational angular velocity at the output end of the stirring component.

[0045] Compared with the prior art, the beneficial effects of the present invention are as follows: by using a stirring component to stir the liquid to be detected inside the storage component, the temperature and consistency of the liquid to be detected are made average. At the same time, specific first rotating component and second rotating component are used to further improve the stirring effect, and by adding a defoaming component to eliminate the bubbles inside the liquid to be detected, the detection accuracy is improved. By providing a locking device at the box cover and the box body, a self-locking structure is formed by the internal high pressure, thereby ensuring the stable operation of the overall device and improving the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0047] Figure 1 is a schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0048] Figure 2 is a schematic diagram of the overall internal structure provided by an embodiment of the present invention;

[0049] Figure 3 is a schematic diagram of the structure of the box cover provided by an embodiment of the present invention;

[0050] Figure 4 Schematic structural diagram of the box body provided by the embodiment of the present invention;

[0051] Figure 5 Schematic structural diagram of the first air duct of the box cover provided by the embodiment of the present invention;

[0052] Figure 6 Schematic structural diagram of the inside of the defoaming component provided by the embodiment of the present invention;

[0053] Figure 7 Schematic structural diagram of the contact between the first rotating component and the second rotating component and the storage component provided by the embodiment of the present invention. Detailed implementation manners

[0054] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0055] In order to better understand the purpose, structure and function of the present invention, the following further describes the present invention in detail with reference to the accompanying drawings.

[0056] Embodiment 1

[0057] Refer to the attached Figure 1-2 As shown, in the embodiment of the present application, it includes:

[0058] A box body 1, inside which there is a receiving cavity with an open top. Among them, the shapes of the box body 1 and the receiving cavity can adopt structures such as circular, rectangular, polygonal, etc., and its material is made of materials resistant to high temperature and high pressure, which are not limited here;

[0059] A box cover 2, which is arranged on the top of the box body 1, and a sealed chamber is formed between it and the box body 1. In other words, the box cover 2 and the box body 1 are of a split structure, and after the box cover 2 and the box body 1 are fitted together, a sealed chamber is formed inside the box body 1;

[0060] In order to strengthen the sealing performance of the sealed chamber and the connection stability between the box body 1 and the box cover 2, a circular protrusion 101 is provided at the opening of the top of the box body 1, and a circular stepped groove 201 is provided at the bottom of the box cover 2. The stepped groove is fitted with the circular protrusion 101. Among them, the box body 1 and the box cover 2 are connected and fixed by a locking member. Among them, a sealing gasket is provided at the joint of the box body 1 and the box cover 2. In other words, the sealing gasket can be arranged on the top of the circular protrusion 101 of the box body 1 and the outer bottom of the circular stepped groove 201 of the box cover 2. When the box body 1 and the box cover 2 are connected by the locking member, the sealing gasket is compressed, thereby achieving a sealing effect.

[0061] The intake component 3 is an intake pipe, which is arranged on the box cover 2. One end of it is connected to an external high-pressure air pump, and the other end penetrates through the box cover 2 into the accommodation cavity. By connecting the high-pressure air pump to the intake component 3, the air pressure in the sealed chamber composed of the box cover 2 and the box body 1 is increased.

[0062] The heating component 4 is an electric heating device, such as a resistance wire, a heating rod, etc., which can heat the accommodation cavity inside the box body 1. The heating component 4 is arranged in a ring shape inside the box body 1. By being arranged in a ring shape inside the box body 1, the heating effect is more uniform, avoiding local overheating or too low temperature in some areas.

[0063] The defoaming component 5 is a vibration device, which is arranged at the bottom of the accommodation cavity and is fixedly connected to the box body 1.

[0064] The storage component 6 is of a U-shaped groove structure. The storage component 6 is arranged in the accommodation cavity and its bottom is connected to the defoaming component 5. It is detachably fixedly connected to the box body 1. The storage component 6 contains the liquid to be tested (such as cement mortar, asphalt, paint. Here, the description is for cement mortar, and the testing methods for the consistency of asphalt and paint are the same as that of cement mortar). In order to improve the detection accuracy, a sealing gasket is provided at the connection between the storage component 6 and the box body 1, that is, a stepped groove is provided inside the box body 1 and a sealing gasket is provided on the stepped groove. Correspondingly, a sealing gasket is also provided at the bottom edge of the box body 1. In order to facilitate the placement of the storage component 6, a lifting lug is provided at the top of the storage component 6, and it is connected to the lifting lug through a lifting device, so as to facilitate the placement.

[0065] The stirring component 7 is arranged on the box cover 2, and its rotating end penetrates through the box cover 2 into the storage component 6.

[0066] It should be noted that the stirring component 7 is of a combined structure, including:

[0067] The first driving component 701 is one of a stepping motor or a servo motor. The first driving component 701 is arranged on the box cover 2 and is fixedly connected to the box cover 2 (that is, connected by bolts, connectors, rivets, etc., and a sealing gasket is provided at the connection between the first driving component 701 and the box body 1).

[0068] The first transmission component 702 is of a transmission shaft structure. The first transmission component 702 is arranged in the accommodation cavity. One end of it is connected to the output end of the first driving component 701, and the other end is placed inside the storage component 6.

[0069] The first rotating component 703 is of a stirring roller structure. The first rotating component 703 is arranged on the first transmission component 702 and is fixedly connected to the first transmission component 702, and the two are arranged vertically.

[0070] The second rotating member 704 is a stirring roller structure. The second rotating member 704 is arranged on the first transmission member 702, below the first rotating member 703, and is obliquely arranged with respect to the first transmission member 702.

[0071] During use, both the first rotating member 703 and the second rotating member 704 are below the liquid level of the liquid to be tested. The first rotating member 703 stirs the liquid to be tested above, and the second rotating member 704 stirs the liquid to be tested below. Since the second rotating member 704 is arranged obliquely, it can cause the liquid to be tested above to collapse during rotation, forming a turbulent flow, thereby enhancing the stirring effect and avoiding problems such as local overheating of the liquid to be tested and uneven consistency.

[0072] To ensure the normal and safe operation of the device, a pressure relief valve is indispensably provided on the lid 2. When the internal pressure is too high or when the lid needs to be opened after the detection is completed, the pressure relief valve is opened to relieve the pressure to ensure stable operation.

[0073] Through the above technical solutions, the technical effects generated in the embodiments of the present application are as follows:

[0074] During use, the liquid to be tested is injected into the storage member 6, and the storage member 6 is hoisted into the accommodation cavity by a hoisting device, so that the bottom of the liquid storage member contacts the top of the defoaming member 5, and the edge is connected to the stepped groove of the box body 1. After closing the lid 2 and locking it with a locking member, the high-pressure air pump pressurizes the sealed chamber through the intake member 3, and the heating member 4 heats the sealed chamber and the liquid to be tested, thereby simulating a high-temperature and high-pressure environment. By driving the stirring member 7, the first transmission member 702 and the second transmission member 503 stir the liquid to be tested, so that the temperature and consistency of the liquid to be tested are uniform, providing a basis for improving the detection accuracy.

[0075] Embodiment 2

[0076] Refer to the attached Figure 2 , Figure 7 As shown, the technical features in the above embodiments are adopted in the embodiments of the present application. Among them, the first rotating member 703 and the second rotating member 704 can be one or a combination of a roller shape, a rod shape, a spiral shape, and a grid shape. Here, the grid shape is taken as an example for illustration, including:

[0077] The first rod is longitudinally arranged on the first transmission member 702, and one end thereof is fixedly connected to the first transmission member 702, and there is a spacing between adjacent first rods;

[0078] The second rod is arranged in an array on the first rod, and both ends thereof are fixedly connected to the first rod, and there is a spacing between adjacent second rods.

[0079] Among them, the ends of the first rotating member 703 and the second rotating member 704 can be in contact with the inner wall of the storage member 6, and the inclination angle of the second rotating member is between 45-60°.

[0080] Through the above technical solutions, the technical effects generated in the embodiments of the present application are as follows:

[0081] By adopting the grid-type first rotating member 703 and second rotating member 704, not only can the stirring efficiency be accelerated and the resistance during stirring be reduced, but also during the stirring process, the bubbles contained in the liquid to be measured are stripped, enabling the bubbles to move upward, thereby achieving a defoaming effect and further improving the detection accuracy.

[0082] Embodiment 3

[0083] Reference Figures 3-5 As shown, the technical features in the above embodiments are adopted in the embodiments of the present application. Among them, a locking member is provided between the box cover 2 and the box body 1, and the locking member is arranged in a ring array on the box cover 2 and the box body 1. The locking member includes:

[0084] The first chute 102 is arranged in a ring array outside the annular protrusion 101 at the top of the box body 1, and a clamping groove 1011 is provided at the bottom of the first chute 102;

[0085] The first air duct 202 is arranged in a ring array on the box cover 2, and second chutes 2021 are provided on both sides of the first air duct 202;

[0086] The first sliding member 203 has a piston rod structure and is composed of two piston blocks and a connecting rod. The first sliding member 203 is arranged in the first air duct 202, which divides the first air duct 202 into a first chamber and a second chamber. Among them, one end of the first chamber communicates with the accommodating chamber, and one end of the second chamber corresponds to the position of the clamping groove 1011. A slider (the slider is arranged on the connecting rod) is provided on the first sliding member 203, and the slider is slidably connected with the second chute 2021. The first sliding member 203 can move longitudinally in the first air duct 202;

[0087] The first elastic member 204 is a spring, and the first elastic member 204 is symmetrically arranged in the second chute 2021. One end of it is connected to the second chute 2021, and the other ends are respectively connected to the upper top surface and the lower top surface of the slider;

[0088] The second sliding member 205 is a piston rod structure. The second sliding member 205 is disposed in the second chamber, and one end thereof penetrates the second chamber and is fitted into the clamping groove 1011. In other words, the second sliding member 205 is composed of a piston block and a connecting rod. The end of the connecting rod is an arc structure, which penetrates the second chamber and is fitted into the clamping groove 1011. The second sliding member 205 can move horizontally in the second chamber;

[0089] A second elastic member is disposed in the second chamber. One end thereof is connected to the inner wall of the second chamber, and the other end is connected to the second sliding member 205;

[0090] The filling liquid 207 is a high-temperature resistant hydraulic oil. The filling liquid 207 is disposed between the first sliding member 203 and the second sliding member 205 in the second chamber.

[0091] Through the above technical solutions, the technical effects generated in the embodiments of the present application are as follows:

[0092] During use, the lid 2 is aligned with the box body 1, so that the second sliding member 205 (i.e., the connecting rod of the second sliding member 205) on the lid 2 is aligned with the first sliding groove 102. The lid 2 is placed downward, so that the connecting rod of the second sliding member 205 moves in the first sliding groove 102. At this time, the second slider retracts inward, the second elastic member is in a compressed state, the first sliding member 203 is affected by the filling liquid 207 and moves upward. The first elastic member 204 below the slider is in a stretched state, and the first elastic member 204 above the slider is in a compressed state. When the connecting rod of the second sliding member 205 reaches the clamping groove 1011, the second elastic member resets, prompting the arc end portion of the connecting rod of the second sliding member 205 to enter the clamping groove 1011. At this time, the first elastic member 204 resets, and the first sliding member 203 resets under the action of the first elastic member 204. The lid 2 and the box body 1 are initially locked by the locking member. During the pressurization process, high-pressure gas enters the first air passage 202 and forces the first sliding member 203 to move downward. At this time, the first elastic member 204 above the slider is in a stretched state, the first elastic member 204 below the slider is in a compressed state, the filling liquid 207 moves toward the opening of the second chamber, prompting the connecting rod of the second sliding member 205 to be fitted into the clamping groove 1011, and the second elastic member is in a stretched state. After the air pressure inside the box body 1 is the same as the external air pressure, each component resets. By adopting the hydraulic transmission method, not only the operation steps are reduced, but also the connection between the box body 1 and the lid 2 is more stable, improving the use safety.

[0093] Embodiment 4

[0094] Reference Figure 6As shown in the figure, the technical features in the above embodiments are adopted in the embodiments of the present application. Among them, the defoaming component 5 is of a combined structure, including:

[0095] A housing 501, the housing 501 is arranged at the bottom of the accommodating cavity, and it is detachably and fixedly connected to the box body 1. A rotating cavity is provided inside it, and a third sliding groove is provided at the top of the rotating cavity;

[0096] The second driving component 502 is one of a stepping motor or a servo motor. The second driving component 502 is arranged in the rotating cavity, and it is fixedly connected to the housing 501 (that is, by means of bolts, connecting parts, etc., the second driving component 502 is fixed in the rotating cavity without any position movement);

[0097] The second transmission component 503 is a cam. The second transmission component 503 is arranged at the output end of the second driving component 502, and a first connection end is provided thereon;

[0098] The third sliding component 504 is of a block structure. The third sliding component 504 is arranged in the third sliding groove, and it is slidably connected to the third sliding groove. Its top is of an arc structure and penetrates through the third sliding groove and contacts the box body 1. A second connection end is provided at its bottom. Correspondingly, an arc-shaped groove is provided at the bottom of the box body 1, and the area of the arc-shaped groove should be smaller than the arc area of the top of the third slider;

[0099] The third transmission component 505 is of a rod-shaped structure. One end of the third transmission component 505 is hingedly connected to the first connection end of the second transmission component 503, and the other end is hingedly connected to the second connection end of the third sliding component 504.

[0100] Through the above technical solutions, the technical effects generated in the embodiments of the present application are as follows:

[0101] By starting the second driving component 502 to drive the second transmission component 503 to perform a circular motion, thereby driving one end of the third transmission component 505 to perform a circular motion, the other end performs a longitudinal movement and also swings. Then, it drives the third sliding component 504 to perform a longitudinal movement in the third sliding groove, and further makes the top of the third sliding component 504 contact the bottom of the box body 1 periodically, generating a collision action. Thus, the bubbles in the liquid to be measured inside the box body 1 move upward under the influence of vibration, thereby achieving the defoaming effect and improving the detection accuracy.

[0102] Embodiment 5

[0103] Reference Figure 7As shown in the figure, the technical features in the above embodiments are adopted in the embodiments of the present application. Among them, several detection components are also provided, such as a temperature detection component 8, a pressure detection component 10, an angular velocity detection component 9, and a wireless torque sensor. In order to be able to obtain in real time and control the stirring component 7, the defoaming component 5, the heating component 4, etc., an indispensable control module is also provided. The control module obtains the data collected by each detection component and performs calculations to obtain the consistency value of the current liquid to be measured.

[0104] The following is a specific description

[0105] The temperature detection component 8 is a temperature sensor, which is arranged in the side wall of the box body 1 to obtain the temperature in the sealed chamber. Similarly, it can also be arranged on the inner wall of the box cover 2. In order to be able to detect the temperature of the liquid to be measured inside the liquid storage component, the temperature detection component 8 is arranged on the inner wall of the box cover 2, and its detection end extends into the liquid to be measured in the storage component 6. In order to be able to obtain the temperature at the bottom of the liquid to be measured, the temperature detection component 8 is arranged at the bottom of the liquid storage component, and its detection end extends between the second transmission component 503 and the first rotating component 703; The pressure detection component 10 is a barometric detection device, which is arranged on the inner wall of the box cover 2 to detect the air pressure value in the sealed chamber;

[0106] Among them, the angular velocity detection component 9 is a rotary encoder, which is arranged on the box cover 2 and sleeved on the first transmission component 702 to obtain the rotational angular velocity of the first transmission component 702.

[0107] Wireless torque sensors are arranged on both the first rotating component 703 and the second rotating component 704 to obtain the real-time torque magnitudes of the first rotating component 703 and the second rotating component 704 through the wireless torque sensors.

[0108] In the actual application process, a calibration test is first carried out. A standard liquid with known viscosity and resistance, such as silicone oil, is injected into the storage component 6. By starting the stirring component 7, by obtaining the angular velocity and torque values, and substituting them into Obtain the K value of the device, where η is the consistency value in silicone oil, K is the parameter of the stirring component 7, T is the torque of the stirring component 7, and ω is the rotational angular velocity at the output end of the stirring component 7; obtain the real-time torque change values of the first rotating component 703 and the second rotating component 704 through a wireless torque sensor. Since the consistency of the cement slurry is uneven in the early stage of stirring, there is a difference in the torque values of the first rotating component 703 and the second rotating component 704. Moreover, turbulence is formed during the rotation of the first rotating component 703 and the second rotating component 704, which further forces the torque values of the two to be different. At the same time, there is a temperature difference between the upper part and the lower part of the cement slurry, which also proves that there is a problem of uneven consistency in the current cement slurry. When the stirring component 7 continues to rotate, the turbulence tends to be stable, and at the same time, the difference in the torque values of the first rotating component 703 and the second rotating component 704 shrinks or becomes the same, and the temperatures at the top and bottom of the cement slurry tend to be similar or the same. At this time, by changing the rotation speed of the stirring component 7, setting the corresponding rotation speed, obtaining the current torque values of the first rotating component 703 and the second rotating component 704, and substituting them into to obtain the consistency value in the current test liquid. In the formula, η is the consistency value in the test liquid, K is the parameter of the stirring component 7, T is the torque of the stirring component 7, and ω is the rotational angular velocity at the output end of the stirring component 7, so as to know the consistency value in the current cement slurry.

[0109] Through the above technical solution, the technical effects generated in the embodiments of the present application are as follows:

[0110] By adding wireless torque sensors to the first rotating component 703 and the second rotating component 704, obtaining the torque values of the first rotating component 703 and the second rotating component 704, and judging the mixing degree in the current test liquid according to the change differences of the torque values and temperature values. When the mixing is uniform, by obtaining the rotational angular velocity of the first transmission component 702 and substituting it into the corresponding formula, the accurate consistency value in the test liquid can be obtained.

[0111] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0112] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0113] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0114] The various embodiments in this specification are described in a progressive manner, with each embodiment highlighting the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0115] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions, characterized in that, Comprising: A box body, inside which there is a receiving cavity with an open top; A box cover, which is arranged on the top of the box body and forms a sealed chamber with the box body; An air inlet component, which is arranged on the box cover, one end of which is connected to an external high-pressure air pump, and the other end penetrates through the box cover into the receiving cavity; A heating component, which is arranged in a ring shape inside the box body; An antifoaming component, which is arranged at the bottom of the receiving cavity and is fixedly connected to the box body; A storage component, which is arranged in the receiving cavity and is connected to the antifoaming component at the bottom, and is detachably fixedly connected to the box body; A stirring component, which is arranged on the box cover, and its rotating end penetrates through the box cover into the storage component.

2. The device for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 1, wherein There is a circular protrusion at the open top of the box body, and a circular stepped groove is arranged at the bottom of the box cover. The stepped groove is fitted with the circular protrusion. Among them, the box body and the box cover are connected and fixed by a locking component.

3. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 1, characterized in that, The stirring component is a combined structure, including: A first driving component, which is arranged on the box cover and is fixedly connected to the box cover; A first transmission component, which is arranged in the receiving cavity, one end of which is connected to the output end of the first driving component, and the other end is placed in the storage component; A first rotating component, which is arranged on the first transmission component and is fixedly connected to the first transmission component, and the two are arranged vertically; A second rotating component, which is arranged on the first transmission component and is located below the first rotating component, and is arranged obliquely with respect to the first transmission component.

4. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 3, characterized in that, The first rotating component and the second rotating component are a combined structure, including: A first rod, which is arranged longitudinally on the first transmission component, one end of which is fixedly connected to the first transmission component, and there is a spacing between adjacent two first rods; A second rod, which is arranged in an array on the first rod, and both ends of which are fixedly connected to the first rod, and there is a spacing between adjacent two second rods.

5. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 2, characterized in that, A locking component is arranged between the box cover and the box body. The locking component is arranged in a circular array on the box cover and the box body. The locking component includes: A first sliding groove, which is arranged in a circular array on the outside of the circular protrusion at the top of the box body, and a clamping groove is arranged at the bottom of the first sliding groove; A first air passage, which is arranged in a circular array on the box cover, and second sliding grooves are arranged on both sides of the first air passage; A first sliding component, which is arranged in the first air passage, and divides the first air passage into a first chamber and a second chamber. Among them, one end of the first chamber communicates with the receiving cavity, and one end of the second chamber corresponds to the position of the clamping groove; A slider is arranged on the first sliding component, and the slider is slidably connected to the second sliding groove; A first elastic component, which is symmetrically arranged in the second sliding groove, one end of which is connected to the second sliding groove, and the other end is respectively connected to the upper top surface and the lower top surface of the slider; A second sliding component, which is arranged in the second chamber, and one end of which penetrates through the second chamber and is fitted with the clamping groove; A second elastic member, which is disposed in the second chamber, one end of which is connected to the inner wall of the second chamber, and the other end of which is connected to the second sliding member; A filling liquid, which is disposed between the first sliding member and the second sliding member in the second chamber.

6. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 1, characterized in that, The defoaming member is of a combined structure and includes: A housing, which is disposed at the bottom of the accommodating chamber, is detachably and fixedly connected to the box body, has a rotating chamber inside, and has a third chute at the top of the rotating chamber; A second driving member, which is disposed in the rotating chamber and is fixedly connected to the housing; A second transmission member, which is disposed at the output end of the second driving member and has a first connection end thereon; A third sliding member, which is disposed in the third chute, is slidably connected to the third chute, its top penetrates out of the third chute and contacts the box body, and its bottom has a second connection end; A third transmission member, one end of which is hingedly connected to the first connection end of the second transmission member, and the other end of which is hingedly connected to the second connection end of the third sliding member.

7. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 1, characterized in that, Sealing members are further provided on the base surfaces of the box cover and the box body; sealing members are provided on the contact surfaces of the storage member and the box body.

8. An apparatus for measuring the consistency value of well cement under high temperature and high pressure conditions according to claim 1, characterized in that, The storage member is of an integral structure, has a cavity inside, and has symmetrically arranged lifting lugs at its top.

9. An apparatus for measuring the consistency value of oil well cement under high temperature and high pressure conditions according to claim 1, characterized in that, Temperature detection components and pressure detection components are provided on the box cover and the storage member, and an angular velocity detection component is provided at the center of the box cover.

10. A method for measuring the consistency value of oil well cement under high temperature and high pressure conditions, using a device for measuring the consistency value of oil well cement under high temperature and high pressure conditions described in any one of claims 1-9, characterized in that, It includes the following steps: 1) Obtain the temperature and pressure parameters in the sealed cavity of the box body and the box cover, and at the same time obtain the temperature and pressure parameters in the liquid to be detected in the storage member; 2) Compare the temperature parameter in the sealed cavity of the box body and the box cover with the temperature parameter in the liquid to be detected in the storage member to make the comparison value within the error range; 3) After the comparison is completed, obtain the rotational angular velocity at the output end of the stirring component through the angular velocity detection component, and substitute it into to obtain the consistency value in the current liquid to be measured. In the formula, η is the consistency value in the liquid to be measured, K is the parameter of the stirring component, T is the torque of the stirring component, and ω is the rotational angular velocity at the output end of the stirring component.

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