Maintenance and measurement integrated two-interface bonding strength tester

Abstract

The utility model discloses a maintenance and measurement integrated two-interface bonding strength tester which comprises a workbench, a pair of supporting plates are arranged on the upper wall surface of the workbench, a transverse plate is arranged on the upper wall surfaces of the pair of supporting plates, a first multi-stage electric hydraulic cylinder is arranged on the lower wall surface of the transverse plate, and a second multi-stage electric hydraulic cylinder is arranged on the lower wall surface of the transverse plate. A pressing block is arranged at the telescopic end of the first multi-stage electric hydraulic cylinder, a pressure collector is arranged in the pressing block, a pressure gauge is arranged on the pressing block, a first pointer is rotationally arranged in the pressure gauge, a supporting column is arranged on the first pointer, and a second pointer is arranged on the upper wall face of the supporting column; the utility model relates to the technical field of oil drilling, and provides a cement mortar maintenance device which can maintain cement mortar in a simulation casing pipe, so that the situation that the bonding strength between the cement mortar and the simulation casing pipe is influenced due to vibration or collision generated in the process of carrying the simulation casing pipe during maintenance is avoided, and the accuracy of experimental data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a two-interface bond strength tester integrating maintenance and measurement. Background Technique

[0002] With the rapid development of oil drilling technology, the requirements for cementing operations in oil engineering are getting higher and higher. The cementing interface environment is more complex and there are more influencing factors. The bond strength of the cementing interface has a greater impact on the engineering quality. Therefore, it is necessary to detect the bond strength of the cement stone. At present, when the bond strength detection device detects the bond strength of the cement stone, it is necessary to pour cement mortar into the simulated casing. After solidification, the simulated casing needs to be moved to the maintenance device for maintenance. After the maintenance is completed, the simulated casing needs to be placed in the bond strength detection device. The vibration or collision generated during the handling process is likely to affect the bond strength between the cement mortar and the simulated casing, reducing the accuracy of the experimental data and thus affecting the detection effect.

[0003] For example, the utility model patent with the publication number CN205280557U discloses a cementing interface bond strength testing device, including a support seat, a simulated casing, a pressing member and a pressure testing machine. The support seat has a through hole; one end of the simulated casing is connected to the support seat, the lumen of the simulated casing is the same size as and coaxially arranged with the through hole, and the lumen wall is used for cementing the cement stone; the pressing member is arranged at the other end of the simulated casing and can extrude the cement stone under pressure to detach the cement stone from the lumen wall and fall into the through hole; the pressure output end of the pressure testing machine is connected to the pressing member to apply the pressure to the pressing member and record the maximum pressure value. When this device detects the bond strength of the cement stone, it is necessary to pour cement mortar into the simulated casing. After solidification, the simulated casing needs to be moved to the maintenance device for maintenance. After the maintenance is completed, the simulated casing needs to be placed in the bond strength detection device. The vibration or collision generated during the handling process is likely to affect the bond strength between the cement mortar and the simulated casing, reducing the accuracy of the experimental data and thus affecting the detection effect. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a two-interface bond strength tester integrating maintenance and measurement, which solves the problem that when the existing tester detects the bond strength of the cement stone, it is necessary to pour cement mortar into the simulated casing, move the simulated casing to the maintenance device for maintenance after solidification, and place the simulated casing in the bond strength detection device after the maintenance is completed. The vibration or collision generated during the handling process is likely to affect the bond strength between the cement mortar and the simulated casing, reducing the accuracy of the experimental data and thus affecting the detection effect.

[0005] To achieve the above object, the utility model is realized by the following technical solutions: A two-interface bonding strength tester integrating maintenance and measurement, including a workbench, on the upper wall surface of the workbench, a pair of support plates are provided, on the upper wall surfaces of the pair of support plates, a cross plate is provided, on the lower wall surface of the cross plate, a first multi-stage electric hydraulic cylinder is provided, on the telescopic end of the first multi-stage electric hydraulic cylinder, a pressing block is provided, inside the pressing block, a pressure collector is provided, on the pressing block, a pressure gauge is provided, the pressure gauge is connected to the pressure collector, inside the pressure gauge, a first pointer is rotatably provided, on the first pointer, a support column is provided, on the upper wall surface of the support column, a second pointer is provided, on the pressure gauge, a resistor is provided, inside the resistor, a chute is provided, the second pointer is slidably provided in the chute, and a fixing device is provided between the pair of support plates.

[0006] Preferably, the fixing device includes a fixing seat, the fixing seat is provided on the upper wall surface of the workbench, inside the fixing seat, a support block is movably provided, on the pair of support plates, second multi-stage electric telescopic cylinders are respectively provided, on the telescopic ends of the second multi-stage electric telescopic cylinders, fixing blocks are provided.

[0007] Preferably, a simulation casing is movably provided on the fixing seat, the pressing block is movably provided inside the simulation casing, the fixing block is movably provided on the simulation casing, and a cement stone is provided inside the simulation casing.

[0008] Preferably, a water distribution block is provided on the pair of support plates and is located above the simulation casing, the pressing block is movably provided inside the water distribution block, a water inlet pipe is connected to the water distribution block, an electromagnetic valve is provided on the water inlet pipe, and a plurality of water distribution holes are provided on the water distribution block.

[0009] Preferably, a current drawing instrument is provided on the pressing block, a power supply is provided inside the current drawing instrument, one end of the resistor is connected to the positive pole of the power supply, an ammeter is connected to the second pointer, the ammeter is connected to the negative pole of the power supply, and the current drawing instrument is connected to the ammeter.

[0010] Preferably, a protective shell is provided on the pressure gauge, and the second pointer is provided inside the protective shell.

[0011] Beneficial effects

[0012] The two-interface bonding strength tester integrating maintenance and measurement provided by the utility model has the following beneficial effects:

[0013] On the upper wall surface of the workbench of this design, a pair of support plates are provided. On the upper wall surface of the pair of support plates, a cross plate is provided. On the lower wall surface of the cross plate, a first multi-stage electric hydraulic cylinder is provided. On the telescopic end of the first multi-stage electric hydraulic cylinder, a pressing block is provided. Inside the pressing block, a pressure collector is provided. On the pressing block, a pressure gauge is provided. The pressure gauge is connected to the pressure collector. Inside the pressure gauge, a first pointer is rotatably provided. On the first pointer, a support column is provided. On the upper wall surface of the support column, a second pointer is provided. On the pressure gauge, a resistor is provided. Inside the resistor, a sliding groove is provided. The second pointer is slidably provided in the sliding groove. On the pressing block, a current plotter is provided. Inside the current plotter, a power supply is provided. One end of the resistor is connected to the positive pole of the power supply. An ammeter is connected to the second pointer. The ammeter is connected to the negative pole of the power supply. The current plotter is connected to the ammeter. This device can display the pressure collected by the pressure collector on the spot. According to Ohm's law, when the power supply voltage remains unchanged, by changing the resistance value of the detection resistor through the second pointer, the magnitude of the current is further changed, and a line graph is drawn using the current plotter. According to the valley value, the pressure when the cement mortar detaches from the simulation casing is confirmed, and the bonding strength between the cement mortar and the simulation casing can be viewed more intuitively, improving the accuracy of the detection device.

[0014] On the pair of support plates of this design, a water distribution block is provided and is placed above the simulation casing. The pressing block is movably provided inside the water distribution block. A water inlet pipe is connected to the water distribution block. An electromagnetic valve is provided on the water inlet pipe. A number of water distribution holes are provided on the water distribution block. This device can cure the cement mortar inside the simulation casing, avoiding the influence on the bonding strength between the cement mortar and the simulation casing caused by vibration or collision during the process of transporting the simulation casing during curing, improving the accuracy of the experimental data, and further improving the detection effect of the bonding strength tester. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the whole of the present utility model.

[0016] Figure 2 It is of the present utility model Figure 1 Partial enlarged view of part A.

[0017] Figure 3 It is a schematic diagram of the pressure gauge of the present utility model.

[0018] Figure 4 It is a schematic diagram of the resistor of the present utility model.

[0019] Figure 5 It is a schematic diagram of the water distribution block of the present utility model.

[0020] Figure 6 It is a schematic diagram of the fixed block of the present utility model.

[0021] Figure 7Schematic diagram of the fixed seat of the present utility model.

[0022] In the figure: 1, chute; 2, support plate; 3, solenoid valve; 4, water inlet pipe; 5, second multi-stage electric telescopic cylinder; 6, cement stone; 7, fixed seat; 8, workbench; 9, first multi-stage electric hydraulic cylinder; 10, cross plate; 11, pressure collector; 12, pressing block; 13, water distribution block; 14, fixed block; 15, simulation casing; 16, support block; 17, water distribution hole; 18, resistor; 19, second pointer; 20, support column; 21, ammeter; 22, current plotter; 23, power supply; 24, protective shell; 25, pressure gauge; 26, first pointer. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0024] Please refer to Figures 1-7 , the present utility model provides a technical solution: a two-interface bond strength tester for maintenance and measurement integration, including a workbench 8, a pair of support plates 2 are arranged on the upper wall surface of the workbench 8, a cross plate 10 is arranged on the upper wall surfaces of the pair of support plates 2, a first multi-stage electric hydraulic cylinder 9 is arranged on the lower wall surface of the cross plate 10, a pressing block 12 is arranged on the telescopic end of the first multi-stage electric hydraulic cylinder 9, a pressure collector 11 is arranged in the pressing block 12, a pressure gauge 25 is arranged on the pressing block 12, the pressure gauge 25 is connected to the pressure collector 11, a first pointer 26 is rotatably arranged in the pressure gauge 25, a support column 20 is arranged on the first pointer 26, a second pointer 19 is arranged on the upper wall surface of the support column 20, a resistor 18 is arranged on the pressure gauge 25, a chute 1 is arranged in the resistor 18, the second pointer 19 is slidably arranged in the chute 1, and a fixing device is arranged between the pair of support plates 2;

[0025] The pressure collector 11 is only used to collect the pressure value, which is not within the protection scope of this design and belongs to the existing mature technology. Its collection method belongs to the existing mature technology, so its structure is not described in detail.

[0026] Drive the first multi-stage electric hydraulic cylinder 9 to expand and contract, drive the pressing block 12 to rise and fall, so that the pressing block 12 acts on the cement stone 6;

[0027] The resistor 18 is an arc-shaped resistor. One end of the resistor 18 is provided with a terminal. The resistor 18 is connected to the positive electrode of the power supply 23 through the terminal. The resistance value between the second pointer 19 and the terminal of the resistor 18 is the detected value of the internal resistance of the circuit.

[0028] As the pressure of the pressing block 12 increases, the pressure collected by the pressure collector 11 is transmitted to the pressure gauge 25, driving the first pointer 26 inside the pressure gauge 25 to rotate, driving the support column 20 to rotate, causing the second pointer 19 to rotate, and thus changing the resistance value of the resistor.

[0029] In this embodiment, it is further set that the fixing device includes a fixing base 7. The fixing base 7 is arranged on the upper wall surface of the workbench 8. A support block 16 is movably arranged inside the fixing base 7. Second multi-stage electric telescopic cylinders 5 are respectively arranged on a pair of the support plates 2. A fixing block 14 is arranged on the telescopic end of the second multi-stage electric telescopic cylinder 5.

[0030] The fixing base 7 is an arc-shaped fixing block, and the support block 16 is inserted inside the fixing base 7.

[0031] The fixing block 14 is an arc-shaped block. Driving the second multi-stage electric telescopic cylinder 5 to expand and contract drives the fixing block 14 to move, and thus the fixing block 14 clamps and fixes the simulation sleeve 15. When the pressing block 12 acts on the cement stone 6, it can prevent the situation that the movement of the simulation sleeve 15 affects the detected value, and thus improves the detection effect.

[0032] In this embodiment, it is further set that a simulation sleeve 15 is movably arranged on the fixing base 7. The pressing block 12 is movably arranged inside the simulation sleeve 15. The fixing block 14 is movably arranged on the simulation sleeve 15. A cement stone 6 is arranged inside the simulation sleeve 15.

[0033] In this embodiment, it is further set that a water distribution block 13 is arranged on the pair of support plates 2 and is placed above the simulation sleeve 15. The pressing block 12 is movably arranged inside the water distribution block 13. A water inlet pipe 4 is connected to the water distribution block 13. A solenoid valve 3 is arranged on the water inlet pipe 4. A plurality of water distribution holes 17 are arranged on the water distribution block 13.

[0034] The solenoid valve 3 controls the opening and closing of the water inlet pipe 4. Water enters the water distribution block 13 through the water inlet pipe 4 and is evenly sprayed on the cement stone 6 through the water distribution holes 17, which can directly cure the cement stone, avoid the influence on the bonding strength between the cement stone 6 and the simulation sleeve 15 caused by vibration or collision during the process of moving the simulation sleeve 15 during curing, improve the accuracy of the experimental data, and thus improve the detection effect of the bonding strength tester.

[0035] In this embodiment, it is further set that a current plotter 22 is provided on the pressing block 12, a power supply 23 is provided inside the current plotter 22, one end of the resistor 18 is connected to the positive electrode of the power supply 23, an ammeter 21 is connected to the second pointer 19, the ammeter 21 is connected to the negative electrode of the power supply, and the current plotter 22 is connected to the ammeter 21;

[0036] The current plotter 22 is only used to plot a line graph of the collected current signal, which is not within the scope of protection of this design and belongs to the existing mature technology. Its plotting method belongs to the common general knowledge, so its structure is not described in detail.

[0037] In this embodiment, it is further set that a protective shell 24 is provided on the pressure gauge 25, and the second pointer 19 is arranged inside the protective shell 24.

[0038] Embodiment: When the cementation strength tester is used, the support block 16 is inserted into the fixed seat 7, the simulated casing 15 is placed on the fixed seat 7, the second multi-stage electric telescopic cylinder 5 is driven to expand and contract, driving the fixed block 14 to move, so that the fixed block 14 clamps and fixes the simulated casing 15. Mortar is poured into the simulated casing 15 and waits for the mortar to solidify into a cement stone 6. The electromagnetic valve 3 is driven to control the opening and closing of the water inlet pipe 4. Water enters the water distribution block 13 through the water inlet pipe 4 and is evenly sprayed on the cement stone 6 through the water distribution holes 17, so that the cement stone can be directly cured, avoiding the influence on the cementation strength between the cement stone 6 and the simulated casing 15 caused by vibration or collision during the process of carrying the simulated casing 15 during curing, improving the accuracy of the experimental data, and further improving the detection effect of the cementation strength tester. After the curing is completed, the support block 16 inserted into the fixed seat 7 is taken out, the first multi-stage electric hydraulic cylinder 9 is driven to expand and contract, driving the pressing block 12 to rise and fall, so that the pressing block 12 acts on the cement stone 6. As the pressure of the pressing block 12 increases, the pressure collected by the pressure collector 11 is transmitted to the pressure gauge 25, driving the first pointer 26 inside the pressure gauge 25 to rotate, driving the support column 20 to rotate, so that the second pointer 19 rotates, and further changing the resistance value of the detected resistor. According to Ohm's law I = U / R, when the voltage of the power supply 23 remains unchanged, when the pressure of the pressing block 12 increases, the second pointer 19 rotates clockwise, the resistance value of the detected resistor increases, and the current decreases. The ammeter 21 is connected in series in the detection circuit to detect the current and transmit the value of the current to the current plotter 22 to plot a line graph. When the cement stone 6 breaks away from the simulated casing 15, the pressure decreases, and thus the current increases, and the line graph plotted by the current plotter 22 generates a trough value. According to the trough value, the pressure when the cement stone 6 breaks away from the simulated casing 15 can be confirmed, and the cementation strength between the cement stone 6 and the simulated casing 15 can be viewed more intuitively, improving the accuracy of the detection device.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A curing and measuring integrated two-interface bonding strength tester, comprising a workbench (8), characterized in that: A pair of support plates (2) are arranged on the upper wall surface of the workbench (8), a transverse plate (10) is arranged on the upper wall surface of the pair of support plates (2), a first multi-stage electric hydraulic cylinder (9) is arranged on the lower wall surface of the transverse plate (10), a pressure block (12) is arranged on the telescopic end of the first multi-stage electric hydraulic cylinder (9), a pressure collector (11) is arranged in the pressure block (12), a pressure gauge (25) is arranged on the pressure block (12), and the pressure gauge (25) is connected to the On the pressure collector (11), a first pointer (26) is rotatably arranged in the pressure gauge (25), a support column (20) is arranged on the first pointer (26), a second pointer (19) is arranged on the upper wall surface of the support column (20), a resistor (18) is arranged on the pressure gauge (25), a slide groove (1) is arranged in the resistor (18), the second pointer (19) is slidably arranged in the slide groove (1), and a fixing device is arranged between a pair of support plates (2).

2. The two-interface bonding strength tester integrating maintenance and measurement according to claim 1 is characterized in that: The fixing device comprises a fixing seat (7), the fixing seat (7) being arranged on the upper wall surface of the workbench (8), a supporting block (16) being movably arranged in the fixing seat (7), a second multi-stage electric telescopic cylinder (5) being respectively arranged on a pair of the supporting plates (2), and a fixing block (14) being arranged on the telescopic end of the second multi-stage electric telescopic cylinder (5).

3. The two-interface bonding strength tester integrating maintenance and measurement according to claim 2 is characterized in that: A simulated sleeve (15) is movably arranged on the fixing seat (7), the pressing block (12) is movably arranged in the simulated sleeve (15), the fixing block (14) is movably arranged on the simulated sleeve (15), and a cement stone (6) is arranged in the simulated sleeve (15).

4. The two-interface bonding strength tester integrating maintenance and measurement according to claim 3 is characterized in that: A water distribution block (13) is provided on the pair of support plates (2) and is placed above the simulated sleeve (15); the pressing block (12) is movably arranged in the water distribution block (13); the water distribution block (13) is connected to a water inlet pipe (4); the water inlet pipe (4) is provided with a solenoid valve (3); and the water distribution block (13) is provided with a plurality of water distribution holes (17).

5. The two-interface bonding strength tester integrating maintenance and measurement according to claim 4 is characterized in that: The pressing block (12) is provided with a current plotter (22), a power supply (23) is provided inside the current plotter (22), one end of the resistor (18) is connected to the positive electrode of the power supply (23), the second pointer (19) is connected to an ammeter (21), the ammeter (21) is connected to the negative electrode of the power supply, and the current plotter (22) is connected to the ammeter (21).

6. The two-interface bonding strength tester integrating maintenance and measurement according to claim 5 is characterized in that: The pressure gauge (25) is provided with a protective shell (24), and the second pointer (19) is arranged in the protective shell (24).

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