Multifunctional while-drilling milling test system

Abstract

The invention discloses a multifunctional while-drilling grinding and milling test system which comprises a mud tank, the mud tank is connected with a mixer, the mixer is connected with a mud pump, the mud pump is connected with one end of a first discharge high-pressure manifold, and the other end of the first discharge high-pressure manifold is connected with a comprehensive rack and one end of a fourth discharge high-pressure manifold. The other end of the fourth discharge high-pressure manifold is connected with the side wall of a second discharge high-pressure manifold, one end of the second discharge high-pressure manifold is connected with the comprehensive rack, the other end of the second discharge high-pressure manifold is connected with one end of a third discharge high-pressure manifold, and the other end of the third discharge high-pressure manifold is connected with a mud tank; the comprehensive rack and the slurry pump are both connected with the operating console. The testing system solves the problem that an existing testing system can only conduct one-way testing and cannot simulate multi-working-condition drilling testing.

Description

Technical Field

[0001] This invention belongs to the technical field of oil drilling and well workover testing equipment, specifically relating to a multi-functional drilling and milling test system. Background Technology

[0002] Currently, my country's high-end downhole products and instruments for oil drilling and production are still in the development stage. At present, the performance and technical level of high-end downhole equipment such as rotary steering tools, screw motors while drilling, pressure controlled drilling control systems, high-efficiency drilling and milling equipment cannot meet the design requirements. In order to ensure efficient production in oil and gas fields and guarantee the application of downhole operation processes with advanced technologies, it is necessary to further improve the performance of products leaving the factory.

[0003] Existing single-item tests cannot simulate the actual working conditions of downhole products, cannot provide a multi-condition fluid circulation test environment for products, and cannot test the impact of changes in fluid, drilling pressure, rotation speed, and flow rate on product performance. As a result, the product's factory performance cannot be effectively tested, verified, and evaluated, which seriously restricts product quality and R&D upgrades. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional drilling and milling test system, which solves the problem that existing test systems can only perform unidirectional tests and cannot simulate drilling tests under multiple working conditions.

[0005] The technical solution adopted in this invention is a multifunctional drilling and milling test system, including a mud tank, a mixer connected to the mud tank, a mud pump connected to the mixer, one end of the mud pump connected to a first high-pressure discharge manifold, the other end of the first high-pressure discharge manifold connected to a composite test stand and one end of a fourth high-pressure discharge manifold, the other end of the fourth high-pressure discharge manifold connected to the side wall of a second high-pressure discharge manifold, one end of the second high-pressure discharge manifold connected to the composite test stand, the other end of the second high-pressure discharge manifold connected to one end of a third high-pressure discharge manifold, the other end of the third high-pressure discharge manifold connected to the mud tank, and both the composite test stand and the mud pump connected to an operation control console.

[0006] The invention is further characterized in that,

[0007] The first high-pressure manifold is equipped with a flow sensor A, a pressure gauge, and an electric valve in sequence according to the direction of liquid flow. The flow sensor A, pressure gauge, and electric valve are all connected to the control console.

[0008] The third discharge high-pressure manifold is equipped with a throttle valve A and a flow sensor B in sequence according to the direction of liquid flow. Both the throttle valve A and the flow sensor B are connected to the operation control console.

[0009] The fourth high-pressure manifold is equipped with a flow sensor C and a throttle valve B in sequence according to the direction of liquid flow. Both the flow sensor C and the throttle valve B are connected to the control console.

[0010] The integrated test bench includes a test bench track, a fixed seat at one end of the test bench track, and a hydraulic motor at the other end of the test bench track. The hydraulic motor is connected to the first discharge high-pressure manifold. The test bench track is equipped with a clamping platform and several trolleys. The fixed seat is connected to the fixed end of the extension cylinder, and the extension end of the extension cylinder is connected to the clamping platform. The extension cylinder, several trolleys, and hydraulic motor are all connected to the hydraulic system, and the hydraulic system is connected to the operation control console.

[0011] Each trolley includes a trolley platform. The top of the trolley platform is connected to the bottom of a U-shaped support. Horizontal hydraulic cylinders are connected to the inner walls of both ends of the U-shaped support. Each horizontal hydraulic cylinder has a clamping block connected to its telescopic end. The bottom of the trolley platform is connected to both ends of a U-shaped support. The bottom of the U-shaped support has two parallel rotating shafts, both of which are perpendicular to the axis of the platform track. Each rotating shaft has a track wheel at both ends, and each track wheel is located inside the platform track. The bottom of the trolley platform is connected to the telescopic end of a vertical hydraulic cylinder. The fixed end of the vertical hydraulic cylinder is connected to the bottom of the U-shaped support. Both the horizontal and vertical hydraulic cylinders are connected to the hydraulic system.

[0012] The two clamping blocks have arc-shaped grooves on their opposite surfaces, and two rollers are symmetrically arranged in each arc-shaped groove.

[0013] The two side walls of the test bench track are each connected to a track locking mechanism.

[0014] The beneficial effects of this invention are as follows: The multifunctional drilling and milling test system of this invention can realize the simulation test of drilling and milling tools through remote operation. This includes providing high-pressure circulating fluid through mud pumps and high-pressure manifolds, simulating drilling pressure through jacking cylinders, and using a hydraulic system to drive a hydraulic motor to provide continuous rotation, torque, and drill bit tilt control. Multiple test parameters such as circulating fluid pressure and flow rate, drilling pressure, and torque can be remotely monitored at any time. At the same time, multiple sets of electric valves and throttle valves can control the fluid channel to achieve constant power and constant flow control of test parameters, maximizing the simulation of the working conditions of drilling and milling tools and better reflecting the actual performance of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the multifunctional drilling and milling test system of the present invention;

[0016] Figure 2 This is a schematic diagram of the integrated test bench in the multifunctional drilling and milling test system of the present invention;

[0017] Figure 3This is a top view of the integrated test bench in the multifunctional drilling and milling test system of the present invention;

[0018] Figure 4 This is a schematic diagram of the trolley structure in the multifunctional drilling and milling test system of the present invention;

[0019] Figure 5 The integrated principle diagram of the bending realization method of the integrated test bench in the multifunctional drilling and milling test system of this invention.

[0020] In the diagram, 1. Control console, 2. Mud pump, 3. Suction manifold, 4. First discharge high-pressure manifold, 5. Flow sensor A, 6. Pressure gauge, 7. Electric valve, 8. Hydraulic system, 9. Testing equipment, 10. Integrated stand, 11. Throttle valve A, 12. Flow sensor B, 13. Flow sensor C, 14. Throttle valve B, 15. Mud tank, 16. Mixer, 17. Mounting base, 18. Expansion cylinder, 19. 20. Clamping table, 21. Trolley, 22. U-shaped bracket, 23. U-shaped support, 24. Platform track, 25. Hydraulic motor, 26. Horizontal cylinder, 27. Clamping block, 28. Roller, 29. Vertical cylinder, 30. Track locking mechanism, 31. Track traveling wheel, 32. Trolley platform, 33. Second discharge high-pressure manifold, 34. Third discharge high-pressure manifold, 35. Rotary shaft, 36. Arc groove. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] The multifunctional drilling and milling test system of this invention has the following structure: Figure 1As shown, the system includes a mud tank 15, which is connected to a mixer 16. The mixer 16 is connected to a mud pump 2 via a suction manifold 3. The mixer 16 is used to control the fluid composition to meet testing requirements. The mud pump 2 is used to provide high-pressure circulating fluid, with a maximum pressure of 20 MPa. The suction manifold 3 is used to draw in the test fluid. The mud pump 2 is connected to one end of the first discharge high-pressure manifold 4. The other end of the first discharge high-pressure manifold 4 is connected to one end of the integrated test stand 10 and one end of the fourth discharge high-pressure manifold 34, respectively. The test fluid enters the first discharge high-pressure manifold 4 after passing through the mud pump 2. The other end of the fourth discharge high-pressure manifold 34 is connected to the second discharge high-pressure manifold 3. The side wall of 2 is connected, one end of the second discharge high pressure manifold 32 is connected to the integrated platform 10, the other end of the second discharge high pressure manifold 32 is connected to one end of the third discharge high pressure manifold 33, and the other end of the third discharge high pressure manifold 33 is connected to the mud tank 15. The integrated platform 10 and the mud pump 2 are both connected to the operation control console 1. The power and pump flow of the mud pump are controlled by the operation control console 1. After the test fluid is discharged from the first discharge high pressure manifold 4, it is connected to the test tool 9 through the direction of the integrated platform 10. Then the test fluid returns to the mud tank 15 through the third discharge high pressure manifold 33. After passing through the mixer 16 to mix the fluid, it enters the mud pump 2 through the suction manifold 3 and re-enters the entire cycle.

[0024] The first high-pressure manifold 4 is equipped with a flow sensor A5, a pressure gauge 6, and an electric valve 7 arranged sequentially according to the direction of liquid flow. The flow sensor A5, pressure gauge 6, and electric valve 7 are all connected to the operation control console 1. The flow sensor A5 is used for flow data monitoring and acquisition, and the pressure gauge 6 is used for fluid pressure data monitoring and acquisition.

[0025] The third discharge high-pressure manifold 33 is equipped with a throttle valve A11 and a flow sensor B12 arranged in sequence according to the direction of liquid flow. The throttle valve A11 is used to control the flow rate of the fluid, and the flow sensor B12 is used for flow data monitoring and acquisition. Both the throttle valve A11 and the flow sensor B12 are connected to the operation control console 1.

[0026] The fourth discharge high-pressure manifold 34 is equipped with a flow sensor C13 and a throttle valve B14 arranged in sequence according to the direction of liquid flow. The flow sensor C13 is used for flow data monitoring and acquisition, and the throttle valve B14 is used to control the flow rate of the fluid. Both the flow sensor C13 and the throttle valve B14 are connected to the operation control console 1.

[0027] Example 2

[0028] Based on Example 1, such as Figure 2 and Figure 3As shown, the integrated test bench 10 includes a test bench track 23. A fixed seat 17 is provided at one end of the test bench track 23, and a hydraulic motor 24 is provided at the other end of the test bench track 23. The hydraulic motor 24 is connected to the first discharge high-pressure manifold 4. A clamping platform 19 and several trolleys 20 are provided on the test bench track 23. Specifically, the number of trolleys can be three. The clamping platform 19 and the trolleys 20 are both located between the fixed seat 17 and the hydraulic motor 24. Track travel wheels 30 are provided at the bottom of the clamping platform 19. The fixed seat 17 is connected to the fixed end of the extension cylinder 18, and the telescopic end of the extension cylinder 18 is connected to the clamping platform 19. The extension and telescopic movement of the extension cylinder 18 pushes the clamping platform 19. The movable clamping table 19 rolls on the frame track 23. The clamping table 19 is used to clamp and fix the test tool 9. The two side walls of the frame track 23 are connected to the track locking mechanism 29. The track locking mechanism 29 is used to lock the rolling position of the trolley. The top extension cylinder 18, several trolleys 20, and hydraulic motor 24 are all connected to the hydraulic system 8. The hydraulic system 8 is connected to the operation control console 1. According to the length of the test tool 9, three trolleys can be required to achieve corresponding clamping. The hydraulic motor 24 provides rotational power for the test tool 9. The center of the hydraulic motor 24 passes through the first discharge high pressure manifold 4, which ensures the output rotational torque while also ensuring the passage of high pressure fluid.

[0029] Furthermore, the clamping platform 19 includes an upper clamp and a lower clamp, which are connected by bolts. One end of the lower clamp is connected to the telescopic end of the extension cylinder 18. The opposite surfaces of the upper and lower clamps are provided with semi-circular grooves, which form a circular channel. In use, the test tool 9 is placed in this circular channel. The bottom of the lower clamp is provided with a track wheel 30. Under the action of the extension cylinder 18, the clamping platform 19 moves on the platform track 23, thereby providing drilling pressure and drilling displacement to the test tool 9 during the simulation test.

[0030] Furthermore, the track locking mechanism 29 includes a U-shaped clamp body. One end of the U-shaped clamp body is connected to the side wall of the platform track 23 by bolts, and the other end of the U-shaped clamp body is connected to bolts. In use, the trolley 20 moves on the platform track. When it moves to a suitable position, the bolts on the U-shaped clamp body are tightened so that the bolts press against the U-shaped support 22 of the trolley 20, thereby fixing the position of the trolley 20 and achieving locking.

[0031] Example 3

[0032] Based on Example 2, such as Figure 4As shown, each trolley 20 includes a trolley platform 31. The top of the trolley platform 31 is connected to the bottom of a U-shaped bracket 21. Horizontal hydraulic cylinders 25 are connected to the inner walls of both ends of the U-shaped bracket 21. Each horizontal hydraulic cylinder 25 has a clamping block 26 connected to its telescopic end. The horizontal hydraulic cylinders 25 push the clamping blocks 26 to clamp the test tool 9. The interaction of the symmetrical horizontal hydraulic cylinders 25 can achieve the bending of the test tool 9. The bottom of the trolley platform 31 is connected to both ends of a U-shaped support 22. The bottom of the U-shaped support 22 is provided with two parallel rotating shafts 35. Both rotating shafts 35 are perpendicular to the axis of the test bench track 23. Each rotating shaft 35 has a track wheel 30 at both ends. Each track wheel 30 is set inside the test bench track 23 and is mounted on the trolley 20 for rolling. The bottom of the trolley platform 31 is connected to the vertical... The telescopic end of the straight cylinder 28 is connected, and the fixed end of the vertical cylinder 28 is connected to the bottom of the U-shaped support 22. The vertical cylinder 28 can adjust the height of the trolley platform 31. The horizontal cylinder 25 and the vertical cylinder 28 are both connected to the hydraulic system 8. The three trolleys can slide on the platform track to meet the test requirements of drilling tools of different lengths. According to the test requirements, the three trolleys are moved to the appropriate position, and the track locking mechanism 29 is operated to lock the position. The extension distance of the pair of horizontal cylinders 25 and the extension height of the vertical cylinder 28 on each trolley are determined according to the bending parameters of the test tool 9. After these parameters are remotely input and executed on the operation control console 1, the hydraulic system 8 starts to work, so that the horizontal cylinders 25 and the vertical cylinders 28 extend to the target position to realize the bending of the test tool, and complete the test by combining the above-mentioned rotation and drilling actions.

[0033] Furthermore, the opposing surfaces of the two clamping blocks 26 are provided with arc-shaped grooves 36, and two rollers 27 are symmetrically arranged in each arc-shaped groove 36. The arrangement of the rollers 27 can keep the test tool 9 rotating when it is bent, thereby realizing the simulation of the working condition of skew milling drilling.

[0034] The working principle of the multifunctional drilling and milling test system of this invention is as follows: During operation, after ensuring that the electric valve 7, flow sensor A5, pressure gauge 6, throttle valve A11, flow sensor B12, flow sensor C13, and throttle valve B14 are functioning normally, the control console 1 is opened, and the mud pump 2 is started. The fluid in the mud tank 15 is drawn in through the mixer 16 and the suction manifold 3. After the fluid is modified by the mixer 16, it is pressurized by the mud pump 2 and enters the test tool 9 on the integrated stand 10 through the first discharge high-pressure manifold 4. This meets the testing requirements of circulating fluid through the center of the test tool 9. That is, the test fluid is made to pass through the center of the hydraulic motor 24 and enter the test tool 9 through the hydraulic motor 24. Driven by the hydraulic system 8, the hydraulic motor 24 rotates and drives the test tool 9 to rotate, providing a simulation of the rotation of the drilling tool. The test tool 9 is clamped by three carriages 20. Figure 5As shown, under the action of the hydraulic system 8, the extension length of the horizontal cylinder 25 and the extension length of the vertical cylinder 28 are controlled to achieve the bending of the test tool 9. At the same time, the hydraulic system 8 drives the clamping table 19 mounted on the bench track 23 to move by controlling the movement of the top extension cylinder 18, providing drilling pressure and drilling displacement during the drilling simulation of the test tool 9. The clamping table 19 can be equipped with rock blocks or equivalent mold specimens. That is, the drilling, rotation, and bending drilling conditions of the test tool 9 are all completed by the operation and control of the hydraulic system 8, which is remotely controlled by the operation control console 1. After the test fluid is discharged from the test tool 9, it is divided into two paths at the front end of the integrated bench 10, flowing through the third discharge high-pressure manifold 33 and the fourth discharge high-pressure manifold 33 respectively. The test fluid flowing through the fourth high-pressure manifold 34 merges with the test fluid in the first high-pressure manifold 4 at the rear end of the integrated test stand 10. The test fluid flowing through the third high-pressure manifold 33 enters the mud tank 15 and is throttled and diverted by throttle valves A11 and B14. The opening of throttle valves A11 and B14 is controlled by a remote operation control console. At the same time, the remote operation control console 1 collects the flow and pressure at various points on the first high-pressure manifold 4, the third high-pressure manifold 33, and the fourth high-pressure manifold 34 through a signal cable. The control console 1 can also control the speed and power of the mud pump 2 to control the output pressure and flow of the mud pump 2.

[0035] This invention relates to a multifunctional drilling and milling test system that employs hydraulic control for rotation, drilling pressure, and bending. It is simple to operate, provides gentle power, exhibits good stability, and high accuracy. Compared to traditional motor-driven rotation control, it reduces the need for a frequency converter system, significantly lowering the mechanical impact during the testing process.

Claims

1. A multifunctional drilling and milling test system, characterized in that, The system includes a mud tank (15), which is connected to a mixer (16). The mixer (16) is connected to a mud pump (2). The mud pump (2) is connected to one end of a first discharge high-pressure manifold (4). The other end of the first discharge high-pressure manifold (4) is connected to one end of a combined frame (10) and a fourth discharge high-pressure manifold (34). The other end of the fourth discharge high-pressure manifold (34) is connected to the side wall of a second discharge high-pressure manifold (32). One end of the second discharge high-pressure manifold (32) is connected to the combined frame (10). The other end of the second discharge high-pressure manifold (32) is connected to one end of a third discharge high-pressure manifold (33). The other end of the third discharge high-pressure manifold (33) is connected to the mud tank (15). The combined frame (10) and the mud pump (2) are both connected to an operating control console (1).

2. The multifunctional drilling and milling test system according to claim 1, characterized in that, The first discharge high-pressure manifold (4) is provided with a flow sensor A (5), a pressure gauge (6), and an electric valve (7) in sequence according to the direction of liquid flow. The flow sensor A (5), pressure gauge (6), and electric valve (7) are all connected to the operation control panel (1).

3. The multifunctional drilling and milling test system according to claim 1, characterized in that, The third discharge high-pressure manifold (33) is provided with a throttle valve A (11) and a flow sensor B (12) in sequence according to the direction of liquid flow. The throttle valve A (11) and the flow sensor B (12) are both connected to the operation control panel (1).

4. The multifunctional drilling and milling test system according to claim 1, characterized in that, The fourth discharge high-pressure manifold (34) is provided with a flow sensor C (13) and a throttle valve B (14) in sequence according to the direction of liquid flow. The flow sensor C (13) and the throttle valve B (14) are both connected to the operation control panel (1).

5. The multifunctional drilling and milling test system according to claim 1, characterized in that, The integrated test bench (10) includes a test bench track (23), a fixed seat (17) is provided on one end of the test bench track (23), and a hydraulic motor (24) is provided on the other end of the test bench track (23). The hydraulic motor (24) is connected to the first discharge high pressure manifold (4). A clamping table (19) and several trolleys (20) are provided on the test bench track (23). The fixed seat (17) is connected to the fixed end of the extension cylinder (18). The extension end of the extension cylinder (18) is connected to the clamping table (19). The extension cylinder (18), several trolleys (20), and hydraulic motor (24) are all connected to the hydraulic system (8). The hydraulic system (8) is connected to the operation control console (1).

6. The multifunctional drilling and milling test system according to claim 5, characterized in that, Each of the trolleys (20) includes a trolley platform (31), the top of which is connected to the bottom of a U-shaped bracket (21). Horizontal hydraulic cylinders (25) are connected to the inner walls of both ends of the U-shaped bracket (21). Each horizontal hydraulic cylinder (25) has a clamping block (26) connected to its telescopic end. The bottom of the trolley platform (31) is connected to both ends of a U-shaped support (22). Two parallel rotating shafts (35) are provided at the bottom of the U-shaped support (22). The rotating shafts (35) are all perpendicular to the axis of the test bench track (23). Each rotating shaft (35) has a track wheel (30) at both ends. Each track wheel (30) is located inside the test bench track (23). The bottom of the trolley platform (31) is connected to the telescopic end of the vertical cylinder (28). The fixed end of the vertical cylinder (28) is connected to the bottom of the U-shaped support (22). The horizontal cylinder (25) and the vertical cylinder (28) are both connected to the hydraulic system (8).

7. The multifunctional drilling and milling test system according to claim 6, characterized in that, The two clamping blocks (26) are provided with arc-shaped grooves (36) on their opposite surfaces, and two rollers (27) are symmetrically arranged in each arc-shaped groove (36).

8. The multifunctional drilling and milling test system according to claim 6, characterized in that, The two side walls of the test bench track (23) are each connected to a track locking mechanism (29).

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