Turnover tester

Abstract

The utility model discloses a turnover tester which comprises a control box body and a rotatable box body connected with the control box body, the control box body is connected with the rotatable box body through a rotating shaft, and the rotatable box body rotates by 0-180 degrees in the longitudinal direction of the control box body through the rotating shaft. A slurry cylinder assembly is fixedly arranged in the rotatable box body, the lower portion of the slurry cylinder assembly is connected with a filtrate collector through a connecting pipe, the outlet end of the filtrate collector is connected with a beaker or a measuring cup, and two connecting pipelines and a control motor connected with a rotating shaft are arranged in the control box body. The slurry cylinder assembly comprises a slurry cylinder and a driving and stirring device matched with the slurry cylinder, the driving and stirring device is driven by a motor to rotate, the filter loss of drilling fluid and cement slurry in a deep well can be simulated, meanwhile, a filter cake formed after filtration in a high-temperature and high-pressure state is prepared, and the device has important significance on optimization of a drilling fluid formula.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection, specifically relates to a turnover tester. BACKGROUND

[0002] The water loss measuring instrument is a special instrument for measuring the water loss of cement slurry under high temperature and high pressure conditions. In the well cementing operation of oil drilling, the performance of cement slurry is crucial, and the water loss is one of the key parameters for measuring the performance of cement slurry. Excessive water loss may cause various engineering problems, such as annular "bridge plugging", pump blocking, premature "weight loss" of cement slurry leading to invasion of formation fluid and gas channeling, etc., directly affecting the quality of well cementing. Due to the demand of geological conditions and drilling technology, directional drilling technology is widely used, and the particularity of directional well is that there are different angles of well deviation. The traditional high temperature and high pressure water loss instrument is mainly used for simulating the water loss of cement slurry for straight well, and cannot accurately measure the water loss of cement slurry for directional well with different well deviations.

[0003] In view of the above factors, the utility model provides a turnover tester, which can accurately control the temperature, pressure and other conditions during the experiment, record and analyze the water loss data of cement slurry, greatly improve the experimental efficiency and data accuracy, and provide strong technical support for oil drilling and well cementing operation CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a turnover tester to solve the problems in the above background technology.

[0005] The utility model aims at providing a turnover tester to solve the problems in the above background technology.

[0006] The rotatable box body is rotated by 0-180 degrees along the longitudinal direction of the control box body through the rotating shaft, and a slurry cylinder assembly is fixedly arranged in the rotatable box body.

[0007] The lower part of the slurry cylinder assembly is connected with a filtrate collector through a connecting pipe, and the outlet end of the filtrate collector is connected with a beaker or a measuring cup.

[0008] Two connecting pipelines are arranged in the control box body, and a control motor connected with the rotating shaft is arranged in the control box body.

[0009] Further, the slurry cylinder assembly comprises a slurry cylinder and a driving stirring device matched with the slurry cylinder, and the driving stirring device is driven to rotate by a motor.

[0010] A thermocouple is inserted into the slurry cylinder.

[0011] Further, the outer side of the slurry cylinder is fixedly provided with a spiral heating pipe and a spiral cooling pipe, the spiral heating pipe is located in the inner layer of the slurry cylinder, and the spiral cooling pipe is located on the outer side of the slurry cylinder.

[0012] The outer wall of the slurry cylinder is a cavity structure with double layers, and the spiral heating pipe is located in the cavity structure of the slurry cylinder.

[0013] Further, the driving stirring device comprises a driving body connecting end connected with the slurry cylinder, and an O-shaped ring is arranged between the driving body connecting end and the slurry cylinder for sealing.

[0014] The inside of the driving body connecting end is provided with a bearing, one end of the bearing is connected with a sleeve structure, and the other end of the bearing is connected with an inner magnet.

[0015] The end of the driving body connecting end is provided with a driving body plug, and the driving body plug is provided with a motor driving end matched with the inner magnet.

[0016] Further, the driving body connecting end further comprises a paddle shaft arranged on the sleeve structure and stirring paddles arranged on the paddle shaft, and the stirring paddles are symmetrical frame structures.

[0017] Further, the two-way connecting pipelines comprise a nitrogen gas supply pipeline and a back pressure pipeline, a pressure reducing valve, a check valve and a pressure gauge are arranged on the nitrogen gas inlet along the nitrogen gas supply pipeline, and the end of the nitrogen gas supply pipeline is connected with the upper cover joint of the slurry cylinder.

[0018] The back pressure pipeline is connected with the filtrate collector, and a pressure reducing valve, a safety valve and a pressure gauge are arranged on the back pressure pipeline.

[0019] Further, the nitrogen gas supply pipeline extends to the outside of the control box body and is connected with an external nitrogen source pipeline.

[0020] The nitrogen gas supply pipeline and the nitrogen source pipeline are connected through flanges.

[0021] The control box body is provided with a controller taking a single-chip microcomputer or a PLC as a main body, and the controller is electrically connected with the pressure reducing valve, the check valve and the pressure gauge on the nitrogen gas supply pipeline and the pressure reducing valve, the safety valve and the pressure gauge on the back pressure pipeline.

[0022] The control box body is provided with a display, and the display is connected with the controller through a connecting line.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] The utility model discloses a high-temperature and high-pressure filter press for drilling fluid and cement slurry, which can simulate the filtration loss of drilling fluid and cement slurry in deep wells and simultaneously prepare filter cakes formed after filtration under high temperature and high pressure conditions.

[0025] In industrial production, by using the high-temperature and high-pressure filter press, enterprises can simulate the environmental conditions of products in actual use, thereby evaluating the durability and stability of the products and ensuring product quality.

[0026] The utility model also plays an important role in scientific research, providing accurate testing environments for researchers and helping them to deeply understand the water loss characteristics of materials and promote the progress of scientific research. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall schematic diagram of the utility model;

[0028] Figure 2 is the slurry cylinder assembly schematic diagram of the utility model;

[0029] Figure 3 is the driving and stirring device schematic diagram of the utility model;

[0030] Figure 4 is the mechanical principle schematic diagram of the utility model. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0033] In the description of the utility model, need understanding is, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0034] As Figures 1-4 Indicated, a kind of turnover tester, including control box 1 and with the rotatable box 2 of control box 1 connection, the control box 1 with the rotatable box 2 between by rotating shaft 3 connection;

[0035] The rotatable box 2 is rotated along the longitudinal direction 0-180 degrees of the control box 1 by rotating shaft 3, fixedly arranged with slurry cylinder assembly 4 in the rotatable box 2, the upper end of slurry cylinder assembly 4 is flush with the upper end of the rotatable box 2, and the lower end of slurry cylinder assembly 4 extends out of the rotatable box 2 to extend;

[0036] The lower part of slurry cylinder assembly 4 is connected with filtrate collector 5 by connecting pipe, and the outlet end of filtrate collector 5 is connected with beaker or measuring cup 6;

[0037] Two-way connecting pipeline is arranged in the control box 1, and control motor 7 is connected with rotating shaft 3.

[0038] The control box 1 is provided with connecting seat at the bottom, and the connecting seat is fixed on the positioning platform by bolts.

[0039] The controller in the control box is mainly single-chip microcomputer or PLC, and the controller is electrically connected with the pressure relief valve, check valve and pressure gauge on the nitrogen gas supply pipeline and the pressure relief valve, safety valve and pressure gauge on the back pressure pipeline.

[0040] Display is arranged on the control box, and the display is connected with the controller by connecting line.

[0041] In use state, the rotating shaft 3 is rotated by control motor 7, one end of the rotating shaft 3 is connected to the output end of control motor 7, and the other end is connected to the end face of the rotatable box 2.

[0042] The slurry cylinder is made of high-temperature and high-pressure material, and the difference between the operation steps of the conventional high-temperature and high-pressure fluid loss instrument is that before the slurry cylinder is filled with drilling fluid, a high-temperature resistant film can be installed on the inner side wall of the slurry cylinder (not shown in the figure), then the drilling fluid is filled, and finally the cover joint is installed, and the remaining steps are the same as the operation steps of the conventional high-temperature and high-pressure fluid loss instrument. The high-temperature resistant film is made of polytetrafluoroethylene film and polyethylene imine film, and the high-temperature resistant film is in the form of a sheet or a cylinder.

[0043] In use, by controlling the motor to rotate to drive the rotatable box body 2 to change the corresponding angle, the cement slurry fluid loss under different well inclination angles can be simulated, thereby providing more accurate measurement results.

[0044] In order to facilitate the fluid loss test through the slurry cylinder assembly in the use state, the slurry cylinder assembly 4 comprises a slurry cylinder 9 and a driving and stirring device 10 matched with the slurry cylinder 9, and the driving and stirring device 10 is driven to rotate by a motor.

[0045] The slurry cylinder 9 is inserted with a thermocouple 11, and the thermocouple 11 extends into the slurry cylinder 9.

[0046] The slurry cylinder 9 is fixedly arranged in the rotatable box body 2.

[0047] The rotatable box body 2 connected with the control box 1 is provided with a side opening door at the rear end.

[0048] The driving and stirring device 10 adopted above is a magnetic transmission structure.

[0049] In order to facilitate the heating and cooling operation of the slurry cylinder by setting the spiral heating pipe 12 and the spiral cooling pipe 13 in the use state, the outer side of the slurry cylinder 9 is fixedly provided with the spiral heating pipe 12 and the spiral cooling pipe 13, the spiral heating pipe 12 is located in the inner layer of the slurry cylinder 9, and the spiral cooling pipe 13 is located on the outer side of the slurry cylinder 9.

[0050] The outer wall of the slurry cylinder 9 is a cavity structure with double layers, and the spiral heating pipe 12 is located in the cavity structure of the slurry cylinder 9.

[0051] In order to facilitate the stirring operation through the magnetic transmission structure in the use state, the driving and stirring device 10 comprises a driving body connecting end 14 connected with the slurry cylinder 9, and an O-ring is arranged between the driving body connecting end 14 and the slurry cylinder 9 for sealing.

[0052] The inside of the driving body connecting end 14 is provided with a bearing, one end of the bearing is connected with a sleeve structure 15, and the other end of the bearing is connected with an inner magnet 16.

[0053] The end of the driving body connecting end 14 is provided with a driving body plug 17, and the driving body plug 17 is provided with a motor driving end matched with the inner magnet 16.

[0054] The magnetic transmission structure realizes the rotation of the stirring blade through the cooperation of the driving body plug 17 and the inner magnet 16.

[0055] The driving body connecting end 14 further comprises a blade shaft 18 arranged on the sleeve structure 15 and a stirring blade 19 arranged on the blade shaft 18, and the stirring blade 19 is a symmetrical frame structure.

[0056] The two-way connecting pipelines comprise a nitrogen gas supply pipeline 20 and a back pressure pipeline 21, and the nitrogen gas supply pipeline 20 is provided with a pressure reducing valve, a check valve and a pressure gauge along the nitrogen gas inlet, and the end of the nitrogen gas supply pipeline 20 is connected to the upper cover joint of the slurry cylinder 9.

[0057] The back pressure pipeline 21 is connected to the filtrate collector 5, and the back pressure pipeline 21 is provided with a pressure reducing valve, a safety valve and a pressure gauge.

[0058] The nitrogen gas supply pipeline 20 extends to the outside of the control box 1 and is connected to an external nitrogen gas source pipeline.

[0059] The nitrogen gas supply pipeline 20 and the nitrogen gas source pipeline are connected through flanges.

[0060] Before the experiment, the whole device is assembled, the pressure of the pressure reducing valve is adjusted, the pressure reducing valve is pressurized through the gas source, and when the pressure reaches the set pressure of the pressure reducing valve, the pressurization is stopped. Under such operation, before the experiment, the liquid outlet end of the slurry cylinder has a certain pressure, which is more in line with the actual working condition.

[0061] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A turnover tester comprising a control box (1) and a rotatable box (2) connected to the control box (1), characterized in that: The control box (1) and the rotatable box (2) are connected through a rotating shaft (3); The rotatable box (2) is rotated along the longitudinal direction of the control box (1) by 0-180 degrees through the rotating shaft (3), and a slurry cylinder assembly (4) is fixedly arranged in the rotatable box (2); The lower part of the slurry cylinder assembly (4) is connected with a filtrate collector (5) through a connecting pipe, and the outlet end of the filtrate collector (5) is connected with a beaker or a measuring cup (6); The control box (1) is provided with two connecting pipelines and a control motor (7) connected with the rotating shaft (3).

2. The flip tester of claim 1, wherein: The slurry cylinder assembly (4) comprises a slurry cylinder (9) and a driving stirring device (10) matched with the slurry cylinder (9), and the driving stirring device (10) is driven to rotate by a motor; A thermocouple (11) is inserted into the slurry cylinder (9).

3. The flip tester of claim 2, wherein: A spiral heating pipe (12) and a spiral cooling pipe (13) are fixedly arranged on the outside of the slurry cylinder (9), the spiral heating pipe (12) is located in the inner layer of the slurry cylinder (9), and the spiral cooling pipe (13) is located on the outside of the slurry cylinder (9); The outer wall of the slurry cylinder (9) is a cavity structure with double layers, and the spiral heating pipe (12) is located in the cavity structure of the slurry cylinder (9).

4. The flip tester of claim 3, wherein: The driving body connecting end (14) is provided with an O-ring for sealing between the driving body connecting end (14) and the slurry cylinder (9); The inside of the driving body connecting end (14) is provided with a bearing, one end of the bearing is connected with a sleeve structure (15), and the other end of the bearing is connected with an inner magnet (16); The end of the driving body connecting end (14) is provided with a driving body plug (17), and the driving body plug (17) is provided with a motor driving end matched with the inner magnet (16).

5. The flip tester of claim 4, wherein: The driving body connecting end (14) further comprises a paddle shaft (18) arranged on the sleeve structure (15) and stirring paddles (19) arranged on the paddle shaft (18), and the stirring paddles (19) are symmetrical frame structures.

6. The flip tester of claim 5, wherein: The two connecting pipelines comprise a nitrogen gas supply pipeline (20) and a back pressure pipeline (21), a pressure reducing valve, a check valve and a pressure gauge are arranged on the nitrogen gas inlet of the nitrogen gas supply pipeline (20), and the end of the nitrogen gas supply pipeline (20) is connected with the upper cover joint of the slurry cylinder (9); The back pressure pipeline (21) is connected to the filtrate collector (5), and the back pressure pipeline (21) is provided with a pressure reducing valve, a safety valve and a pressure gauge.

7. The flip tester of claim 6, wherein: The nitrogen gas supply pipeline (20) extends to the outside of the control box (1) and is connected with an external nitrogen source pipeline; the nitrogen gas supply pipeline (20) and the nitrogen source pipeline are connected through flanges.

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