Assembled static pushing type rotary steering tool test device and method

Abstract

The invention is suitable for the technical field of test devices, and provides an assembled static pushing type rotary steering tool test device and method, and the device comprises a simulation drill rod, a well deviation module, a power module, a drilling fluid circulation module, a measurement module, a rock drilling module and a guide module. According to the invention, assembly design is adopted, the flexibility and adaptability of the device are obviously improved, and underground multi-working-condition coupling can be accurately simulated. According to the device, a plurality of functional modules are integrated on a unified test platform, so that the operation condition of the static pushing type rotary steering tool under a complex working condition is effectively simulated, and the dynamic behavior of the static pushing type rotary steering tool is systematically and deeply researched. Besides, the device supports comprehensive test and analysis of the fatigue life of the tool structure, provides a reliable test platform and data support for improving the performance and the service life of the rotary steering tool, and has important engineering application value and theoretical research significance.

Description

Technical Field

[0001] The invention belongs to the technical field of test devices, and in particular relates to an assembled static push-type rotary guide tool test device and method. Background Art

[0002] As a key component of downhole drilling tools, the performance of rotary steerable tools is directly related to the efficiency of drilling operations, the accuracy of wellbore trajectory control, and the overall safety of downhole operations. Especially in deep and even ultra-deep well operating environments, static push-type rotary steerable tools need to be in extremely complex working conditions such as high temperature for a long time, and need to work in a rotating and bending state for a long time. Therefore, it is particularly important to conduct in-depth research on the structural strength, dynamic behavior, and fatigue life of such tools.

[0003] However, the current domestic related static push-type rotary steerable tool simulation devices have certain limitations. Restricted by the assembly method of the test bench, it is impossible to fully analyze the dynamic behavior of the static push-type rotary steerable tool under the influence of multiple working conditions coupling (including high temperature, drilling fluid circulation, guiding force, etc.). At the same time, the fatigue life analysis of the static push-type rotary steerable tool structure also needs further supplementation and improvement. In view of the above-mentioned deficiencies in the prior art, the present invention proposes an assembled static push-type rotary steerable tool test device and method, which has important engineering significance for exploring the downhole dynamic behavior of drilling rotary steerable tools and conducting fatigue analysis of drilling rotary steerable tools. Summary of the invention

[0004] The object of the present invention is to provide an assembled static push-type rotary guide tool testing device and method, aiming to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the present invention is achieved through the following technical solutions: An assembled static push-to-pull rotary steering tool test device comprises a simulated drill pipe, a well inclination module, a power module, a drilling fluid circulation module, a measurement module, a rock drilling module and a steering module; The well inclination module includes a test frame, a stabilizing bolt, a well inclination platform, a lifting frame, a fixed bearing, a bearing support, a well inclination platform support rod, a test assembly platform, a platform fixing bolt and a platform connecting bolt; the test frame is composed of a test frame vertical beam and two symmetrically arranged test frame cross beams fixedly connected; the power module includes a rotary drive, a scissor jack, a rotary drive sliding platform and a fixed plate; the drilling fluid circulation module includes a wellbore, a water pump, a water tank, a flow meter, a water inlet pipeline, a water outlet pipeline, a wellbore support, a waterproof flange sleeve, a linear sliding bearing, a waterproof partition and a rotary joint; the measurement module includes a wireless strain sensor, a wireless triaxial acceleration sensor, an eddy current sensor, a camera, a torque sensor, a pressure sensor, a data center and an analysis terminal; the rock drilling module includes a magnetic powder brake, an exciter, a magnetic powder brake sliding platform, an exciter sliding platform and a simulated drill pipe extension rod; the guide module includes a guide support rod, an electric hydraulic push rod and a thick-walled linear sliding bearing; In the well inclination module, the vertical beam of the test frame is fixedly connected to the cross beam of the test frame, and the vertical beam of the test frame is provided with a stabilizing bolt, and the vertical beam of the test frame is provided with a slot; the cross beam of the test frame is provided with a bearing support, and two symmetrically arranged cross beams of the test frame are provided with slots; the lifting frame is a hydraulic jack, which is used to lift the well inclination platform; the four corners of the well inclination platform are fixedly connected with well inclination platform support rods, the well inclination platform support rods at the two front corners of the well inclination platform slide in the slots of the vertical beam of the test frame, and the well inclination platform support rods at the two rear corners of the well inclination platform rotate in the slots of the cross beam of the test frame; the well inclination platform support rods at the two rear corners of the well inclination platform are connected to fixed bearings, and the fixed bearings are fixed on the bearing supports; several of the test assembly platforms are fixed to the well inclination platforms by platform fixing bolts, and two adjacent test assembly platforms are connected by platform connecting bolts; equipment installation holes for installing test equipment are reserved on the test assembly platform; In the power module, the rotary drive controls the motor through the data center, and connects the simulated drill rod through a clamping expansion sleeve to achieve the adjustment of the drive speed and torque transmission; the drilling pressure of the simulated drill rod is achieved by controlling the scissor jack to push the rotary drive sliding platform; a fixed plate is provided on the end side of the test assembly platform, and the scissor jack is fixed to the fixed plate with bolts; In the drilling fluid circulation module, the water pump is connected to the water tank through a pipeline, the water pump is connected to the simulated drill pipe through a water inlet pipeline, the simulated drill pipe outlet is arranged in the wellbore, and the wellbore is connected to the water tank through a water outlet pipeline; the flow meter and the rotary joint are installed on the fluid channel of the simulated drill pipe; a plurality of the wellbore supports are installed on the test assembly platform with bolts, and are assembled concentrically with the wellbore, and the wellbore supports are used to fix the wellbore; the linear sliding bearing, the simulated drill pipe and the simulated drill pipe extension rod are assembled concentrically, and the linear sliding bearing allows the simulated drill pipe and the simulated drill pipe extension rod to vibrate and rotate axially; In the measurement module, the wireless strain sensor and the wireless triaxial acceleration sensor are circumferentially pasted on the surface of the simulated drill pipe at an interval of 120°; the wireless strain sensor is used to measure the strain at a certain position of the simulated drill pipe, and the fatigue damage of the simulated drill pipe is calculated by using the fatigue damage model in combination with the rain flow counting method; the wireless triaxial acceleration sensor is used to measure the triaxial acceleration at a certain position of the simulated drill pipe, and perform data conversion to obtain the time domain waveform, frequency domain characteristics and direction change of the triaxial acceleration; the eddy current sensor senses the distance change between the surface of the simulated drill pipe and the sensor, and collects the displacement data of the simulated drill pipe in three directions in real time; the camera is fixed on the test assembly platform with bolts, and is used to shoot the motion process of a certain cross section of the simulated drill pipe in high-speed operation, and capture the dynamic behavior of the drill pipe under the influence of multiple working conditions; the torque sensor and the pressure sensor are both fixed on the rotary drive sliding platform, the torque sensor is fixed on the front side of the rotary drive, and the pressure sensor is fixed on the front side of the scissor jack, and the torque sensor and the pressure sensor are respectively used to measure the torque and drilling pressure borne by the simulated drill pipe; the data center is connected to the analysis terminal; In the rock drilling module, the magnetic powder brake is fixed on the magnetic powder brake sliding platform; the vibrator is fixed on the vibrator sliding platform; the magnetic powder brake and the vibrator apply counter torque and drilling pressure according to the working signal input from the data center; the magnetic powder brake sliding platform and the vibrator sliding platform are both installed on the test assembly platform; the simulated drill rod extension rod is connected to the simulated drill rod; In the guide module, the electric hydraulic push rod is installed on the wellbore to apply guiding force to the simulated drill rod; the outer side of the thick-walled linear sliding bearing is provided with equipment grooves spaced 120° in an annular direction to install and lock the electric hydraulic push rod; the thick-walled linear sliding bearing is assembled concentrically with the wellbore and the simulated drill rod.

[0006] Furthermore, it also includes a high-temperature module, which includes a flexible high-temperature electric heating sleeve and a temperature control system; the flexible high-temperature electric heating sleeve has equipment holes in the measuring module and the guide module for the installation of equipment, and the equipment holes between the flexible high-temperature electric heating sleeve and the measuring module and the guide module are provided with sealing rings; the temperature of the flexible high-temperature electric heating sleeve is controlled by the temperature control system and the data center, and the flexible high-temperature electric heating sleeve is arranged on the outside of the wellbore; the temperature control system is fixed to the well inclination platform with bolts.

[0007] Furthermore, two adjacent wellbores are connected by a waterproof flange sleeve, and the waterproof flange sleeve and the well wall are sealed by an O-ring, wherein waterproof baffles are provided at both ends of the waterproof flange sleeve connecting the power module and the drilling module to form a closed drilling fluid circulation space; a hole is provided in the center of the waterproof baffle for assembling a linear sliding bearing, and sealing rings are provided at the hole of the waterproof baffle and on the outside of the linear sliding bearing.

[0008] Furthermore, the wireless strain sensor and the wireless triaxial acceleration sensor are both provided with waterproof casings on their outer sides.

[0009] Furthermore, the end of the simulated drill rod is provided with a male thread.

[0010] Furthermore, the simulated drill rod extension rod is a solid rod, and a female thread is provided at the end of the simulated drill rod extension rod. The female thread at the end of the simulated drill rod extension rod is connected to the male thread at the end of the simulated drill rod.

[0011] Furthermore, the wellbore is provided with an equipment hole for installing an electric hydraulic push rod, and a sealing ring is provided in the equipment hole between the electric hydraulic push rod and the wellbore.

[0012] Furthermore, an annulus is left between the thick-walled linear sliding bearing and the wellbore to ensure the circulation of drilling fluid.

[0013] An assembled static push-type rotary guide tool test method is applied to the device as described above, and the method comprises the following steps: Step 1: Determine the preset simulated downhole working conditions and assemble the required modules; Step 2: Determine the simulated drilling tool and wellbore dimensions and the roughness of the wellbore interior; Step 3: Control the lifting frame to lift the entire well inclination platform, adjust it to the desired simulated well inclination angle, lock the lifting frame, fix the fixed bearing to the bearing support at the corresponding position, and tighten the stabilizing bolt; Step 4: Install the rock drilling module, install the magnetic powder brake on the test assembly platform through the magnetic powder brake sliding platform and fix it with bolts, and install the vibrator on the test assembly platform through the vibrator sliding platform and fix it with bolts; Step 5: Fix the wellbore in sections on the test assembly platform. Connect the two sections of the wellbore through waterproof flange sleeves. Install the simulated drill pipe into the wellbore. The two ends of the simulated drill pipe are connected to the rock drilling module and the power module respectively. Step 6: Install the high temperature module, lock the flexible high temperature electric heating sleeve with the outer wall of the wellbore, and check the tightness between the flexible high temperature electric heating sleeve, the wellbore and each device; Step 7: Install the guide module, start the electric hydraulic push rod, and input the guide force required for the simulation; Step 8: Check the tightness of all joints of the device and inject drilling fluid; Step 9: Start the power module and input the torque and speed required for the test by controlling the rotary drive; Step 10: Collect relevant data and observe test phenomena through the measurement module, analyze the measurement data in real time, determine the motion state of the simulated drilling tool and analyze the fatigue life.

[0014] Furthermore, in the steps, when the vibrator in the rock drilling module is switched to a different type of rock and a scaled drill bit is installed at the end of the simulated drill rod extension rod, the drilling pressure of the simulated drill rod is provided by a rotary driven sliding platform in conjunction with a scissor jack.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts an assembly design, which significantly improves the flexibility and adaptability of the device and can accurately simulate the coupling of multiple working conditions in the well. The device integrates multiple functional modules on a unified test platform, effectively simulating the operation of static push-type rotary steerable tools under complex working conditions, so as to systematically and deeply study their dynamic behavior. In addition, the device supports comprehensive testing and analysis of the fatigue life of the tool structure, providing a reliable test platform and data support for improving the performance and service life of rotary steerable tools, which has important engineering application value and theoretical research significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0018] Figure 3 It is a cross-sectional view of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the power module and the drilling fluid circulation module in the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the measurement module in the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the rock drilling module and the guide module in the present invention.

[0022] In the figure: 1-test frame vertical beam; 2-stabilizing bolt; 3-test frame cross beam; 4-well inclination platform; 5-lifting frame; 6-fixed bearing; 7-bearing support; 8-test assembly platform; 9-platform fixing bolt; 10-platform connecting bolt; 11-wellbore; 12-water pump; 13-water tank; 14-flow meter; 15-water inlet pipeline; 16-water outlet pipeline; 17-wellbore support; 18-rotation drive; 19-simulated drill pipe; 20-waterproof flange sleeve; 21-wireless strain sensor; 22-wireless triaxial acceleration sensor; 23-eddy current sensor; 24-camera; 25-linear slide Bearing; 26-magnetic powder brake; 27-vibrator; 28-magnetic powder brake sliding platform; 29-vibrator sliding platform; 30-guide support rod; 31-electric hydraulic push rod; 32-thick-walled linear sliding bearing; 33-waterproof partition; 34-simulated drill pipe outlet; 35-simulated drill pipe extension rod; 36-flexible high-temperature electric heating sleeve; 37-temperature control system; 38-torque sensor; 39-scissor jack; 40-pressure sensor; 41-slewing drive sliding platform; 42-data center; 43-analysis terminal; 44-well inclination platform support rod; 45-swivel joint; 46-fixed plate. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention is now described in detail below, but it should not be construed as limiting the applicable scope of the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] An embodiment of the present invention provides an assembled static push-type rotary steering tool test device, which is composed of multiple independent functional modules and can be freely combined according to actual needs to achieve a real simulation of different downhole operating environments. Figure 1-5 As shown, the device specifically includes a simulated drill pipe 19, a well inclination module, a power module, a drilling fluid circulation module, a measurement module, a high temperature module, a rock drilling module and a guide module, and the end of the simulated drill pipe 19 is provided with a male thread.

[0026] The well inclination module includes a test frame, a stabilizing bolt 2, a well inclination platform 4, a lifting frame 5, a fixed bearing 6, a bearing support 7, a well inclination platform support rod 44, a test assembly platform 8, a platform fixing bolt 9 and a platform connecting bolt 10; the test frame is composed of a test frame vertical beam 1 and two symmetrically arranged test frame cross beams 3 fixedly connected; The power module includes a slewing drive 18, a scissor jack 39, a slewing drive sliding platform 41 and a fixed plate 46; The drilling fluid circulation module includes a wellbore 11, a water pump 12, a water tank 13, a flow meter 14, a water inlet pipeline 15, a water outlet pipeline 16, a wellbore support 17, a waterproof flange sleeve 20, a linear sliding bearing 25, a waterproof partition 33 and a rotary joint 45; The measurement module includes a wireless strain sensor 21, a wireless triaxial acceleration sensor 22, a high-speed camera 24, a torque sensor 38, a pressure sensor 40, a data center 42 and an analysis terminal 43; the measurement module may also include an eddy current sensor 23; The high temperature module includes an assembleable flexible high temperature electric heating jacket 36 and a temperature control system 37; The rock drilling module includes a magnetic powder brake 26, a vibrator 27, a magnetic powder brake sliding platform 28, a vibrator sliding platform 29 and a simulated drill rod extension rod 35; The guide module includes a guide support rod 30 , three electric hydraulic push rods 31 and a thick-walled linear sliding bearing 32 .

[0027] In the embodiment of the present invention, the device adopts an assembly design, each module is provided with a socket, and can be assembled by fixing bolts, and the simulation of different downhole working conditions can be achieved by combining different modules.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment of the present invention, in the well inclination module, the test frame vertical beam 1 is fixedly connected to the test frame horizontal beam 3, the test frame vertical beam 1 is provided with a stabilizing bolt 2, and the test frame vertical beam 1 is provided with a slot. The test frame horizontal beam 3 is provided with a bearing support 7, and two symmetrically arranged test frame horizontal beams 3 are provided with slots. The four corners of the well inclination platform 4 are fixedly connected with a detachable well inclination platform support rod 44, the well inclination platform support rod 44 at the two front corners of the well inclination platform 4 can slide in the slot of the test frame vertical beam 1, and the well inclination platform support rod 44 at the two rear corners of the well inclination platform 4 can rotate in the slot of the test frame horizontal beam 3. The well inclination angle range to be simulated is determined by selecting the bearing support 7, the well inclination platform 4 is connected to the fixed bearing 6 through the well inclination platform support rod 44, the fixed bearing 6 can be fixed at different positions of the bearing support 7, and the bearing support 7 has a locking device to lock the fixed bearing 6. Several of the test assembly platforms 8 are fixed on the well inclination platform 4 by platform fixing bolts 9, and two adjacent test assembly platforms 8 are connected by platform connecting bolts 10; equipment installation holes for installing test equipment are reserved on the test assembly platforms 8.

[0029] Specifically, the lifting frame 5 is independently arranged, and the well inclination platform 4 is lifted up by the lifting frame 5, and the lifting frame 5 is locked. The specific operation is: the fixed bearing 6 is fixed on the bearing support 7 at the corresponding position and locked, and the stabilizing bolt 2 is locked to achieve the required simulated well inclination angle.

[0030] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, in the power module, the torque is provided by the rotary drive 18, and the drilling pressure is provided by the scissor jack 39 and the rotary drive sliding platform 41. The rotary drive 18 adopts an electronically controlled continuously variable speed change. The rotary drive 18 controls the motor through the data center 42, and connects the simulated drill rod 19 through a clamping expansion sleeve to achieve the adjustment of the drive speed and efficient torque transmission. The rotary drive 18 can select the SE3 produced by Xuzhou Fenghe Slewing Bearing Manufacturing Co., Ltd., with an output torque of 400N·m. The drilling pressure of the simulated drill rod 19 is achieved by controlling the scissor jack 39 to push the rotary drive sliding platform 41. The end side of the test assembly platform 8 is provided with a fixing plate 46 for fixing the scissor jack 39, and the scissor jack 39 is fixed to the fixing plate 46 with bolts and cannot be moved during use. The rotary drive sliding platform 41 can be translated on the test assembly platform 8 to adapt to different lengths of the simulated drill rod 19. After the length is determined, the rotary drive sliding platform 41 is fixed to the test assembly platform 8 with bolts. It should be pointed out that the drilling pressure provided by the power module is used in conjunction with the rock assembled by the rock drilling module. When the rock drilling module is equipped with the vibrator 27, the drilling pressure is provided by the vibrator 27, and the power module does not need to provide additional drilling pressure.

[0031] like Figure 1-Figure 6As shown, as a preferred embodiment of the present invention, in the drilling fluid circulation module, the water pump 12 is connected to the water tank 13 through a pipeline, the water pump 12 is connected to the simulated drill pipe 19 through the water inlet pipeline 15, the simulated drill pipe outlet 34 is arranged in the wellbore 11, and the wellbore 11 is connected to the water tank 13 through the water outlet pipeline 16; the flow meter 14 and the rotary joint 45 are installed on the fluid channel of the simulated drill pipe 19, the flow meter 14 is used to measure the flow rate, and the rotary joint 45 is used to separate the simulated drill pipe 19 from the water inlet pipeline 15 to prevent the water inlet pipeline 15 from rotating with the simulated drill pipe 19; a plurality of the wellbore supports 17 are installed on the test assembly platform 8 with bolts and assembled concentrically with the wellbore 11, the wellbore supports 17 are used to fix the wellbore 11, and the wellbore supports 17 can be split into two parts to facilitate the installation of the wellbore 11. Each wellbore 11 is connected by a waterproof flange sleeve 20, and an O-ring is used to seal the waterproof flange sleeve 20 and the well wall. Waterproof baffles 33 are provided at both ends of the waterproof flange sleeve 20 connecting the power module and the rock drilling module to form a closed drilling fluid circulation space; a hole is provided in the center of the waterproof baffle 33 for assembling a linear sliding bearing 25, and sealing rings are provided at the hole of the waterproof baffle 33 and on the outside of the linear sliding bearing 25 to prevent the leakage of drilling fluid. The linear sliding bearing 25, the simulated drill rod 19 and the simulated drill rod extension rod 35 are concentrically assembled, wherein the linear sliding bearing 25 allows the simulated drill rod 19 and the simulated drill rod extension rod 35 to vibrate and rotate axially.

[0032] Specifically, when the drilling fluid is circulated, the drilling fluid is injected from the water tank 13 into the simulated drill pipe 19 from the water inlet pipeline 15 through the water pump 12, and flows out from the simulated drill pipe outlet 34, flows through the annulus between the wellbore 11 and the simulated drill pipe 19, and finally flows back to the water tank 13 via the water outlet pipeline 16.

[0033] In the embodiment of the present invention, the inner wall of the wellbore 11 may be provided with different degrees of roughness according to the simulated working conditions.

[0034] like Figure 1-Figure 6As shown, as a preferred embodiment of the present invention, in the measurement module, the wireless strain sensor 21 and the wireless triaxial acceleration sensor 22 are circumferentially pasted on the surface of the simulated drill pipe 19 at an interval of 120°; only one sensor is pasted on a certain section of the simulated drill pipe 19; the wireless strain sensor 21 and the wireless triaxial acceleration sensor 22 are both provided with waterproof shells on the outside to prevent drilling fluid erosion; the wireless strain sensor 21 is used to measure the strain at a certain position of the simulated drill pipe 19, and can further be combined with the rain flow counting method to use the fatigue damage model to calculate the fatigue damage of the simulated drill pipe; the wireless triaxial acceleration sensor 22 is used to measure the triaxial acceleration at a certain position of the simulated drill pipe 19, and further perform data conversion to obtain the time domain waveform, frequency domain characteristics and direction change of the triaxial acceleration. The three eddy current sensors 23 collect the displacement data of the simulated drill pipe 19 in three directions in real time by sensing the distance change between the surface of the simulated drill pipe 19 and the sensor, and measure the three-dimensional motion trajectory of the simulated drill pipe 19 by combining the wireless strain sensor 21 and the wireless triaxial acceleration sensor 22 arranged circumferentially at an interval of 120° and the signal processing algorithm. The camera 24 is bolted to the test assembly platform 8, and captures the dynamic behavior of the drill rod under multiple working conditions by shooting the motion process of a certain section of the simulated drill rod 19 in high-speed operation. The torque sensor 38 and the pressure sensor 40 are used to measure the torque and drilling pressure borne by the simulated drill rod 19, respectively, wherein the torque sensor 38 and the pressure sensor 40 are both fixed to the rotary drive sliding platform 41, the torque sensor 38 is fixed to the front side of the rotary drive 18, and the pressure sensor 40 is fixed to the front side of the scissor jack 39. The data collected by the measurement module are all collected in a data center 42, and the data center 42 is connected to the analysis terminal 43.

[0035] like Figure 1-Figure 6As shown, as a preferred embodiment of the present invention, in the high temperature module, the flexible high temperature electric heating sleeve 36 can be customized according to the wellbore 11, the temperature of the flexible high temperature electric heating sleeve 36 is controlled by the temperature control system 37 and the data center 42, and the flexible high temperature electric heating sleeve 36 is sleeved on the outside of the wellbore 11; the temperature control system 37 is fixed on the well deviation platform 4 by bolts. The flexible high temperature electric heating sleeve 36 has equipment holes for equipment installation in both the measuring module and the guide module, and the equipment holes between the flexible high temperature electric heating sleeve 36 and the measuring module and the guide module are provided with sealing rings; the temperature of the flexible high temperature electric heating sleeve is controlled by the temperature control system and the data center, and the flexible high temperature electric heating sleeve is sleeved on the outside of the wellbore; the temperature control system is fixed on the well deviation platform by bolts. It should be particularly pointed out that when the flexible high temperature electric heating sleeve 36 is sleeved on the outside of the wellbore 11, that is, after the high temperature module is assembled, the motion trajectory of the simulated drill pipe 19 is only measured by the eddy current sensor 23. When the flexible high-temperature electric heating sleeve 36 is used in conjunction with the eddy current sensor 23, the measurement point position for measurement will be reserved before design to facilitate the installation of the measuring equipment; when using the flexible high-temperature electric heating sleeve 36, the wellbore 11 needs to be made of high-temperature resistant materials to ensure the safety of the test; the flexible high-temperature electric heating sleeve 36 can be selected from the electric heating sleeve produced by Bazhou Shenglong Thermal Energy Technology Co., Ltd., and the heating temperature range is 0-200°.

[0036] like Figure 1-Figure 6 As shown, as a preferred embodiment of the present invention, in the rock drilling module, the magnetic powder brake 26 is fixed to the magnetic powder brake sliding platform 28 by bolts; the vibrator 27 is fixed to the vibrator sliding platform 29 by bolts; the magnetic powder brake sliding platform 28 and the vibrator sliding platform 29 can adjust the position according to the size of the simulated drill rod 19. Specifically, the magnetic powder brake sliding platform 28 and the vibrator sliding platform 29 can slide on the test assembly platform 8, and after adjusting the position, the position is fixed by bolts. The simulated drill rod extension rod 35 is a solid rod, and its end is provided with a female thread, which can be connected with the male thread at the end of the simulated drill rod 19. Its purpose is to transmit the counter torque and drilling pressure generated by the rock drilling module through the simulated drill rod extension rod 35. The magnetic powder brake 26 and the vibrator 27 apply counter torque and drilling pressure according to the working signal input by the data center 42. The magnetic powder brake 26 can be PB-20 produced by Odeke Automation Equipment Co., Ltd., with an input torsion range of 0-20N·m and a maximum speed of 1800r / min. The vibrator 27 can be SA-JZ040 produced by Wuxi Shiao Technology Co., Ltd., with an input maximum exciting force range of 0-400N and a maximum amplitude range of ±12.5mm. Optionally, the vibrator 27 can be replaced with different types of rocks, and a scaled drill bit can be connected to the end of the simulated drill rod extension rod 35 to simulate the working condition of the interaction between real rocks and drill bits.

[0037] like Figure 2-Figure 6 As shown, as a preferred embodiment of the present invention, in the guide module, the wellbore 11 has an equipment hole for installing the electric hydraulic push rod 31, and the equipment hole between the electric hydraulic push rod 31 and the wellbore 11 is provided with a sealing ring to prevent the leakage of drilling fluid. The data center 42 inputs a signal, and the electric hydraulic push rod 31 applies a guiding force to the simulated drill rod 19, and the guiding force is the combined force provided by the electric hydraulic push rod 31 in three directions. The thick-walled linear sliding bearing 32 has equipment grooves arranged at 120° intervals on the outer side of the circumferential direction, which are used to install and lock the electric hydraulic push rod 31; the thick-walled linear sliding bearing 32 is concentrically assembled with the wellbore 11 and the simulated drill rod 19, and an annulus is left between the thick-walled linear sliding bearing 32 and the wellbore 11 to ensure the circulation of drilling fluid. The guide module applies a pushing force according to the input signal through the electric hydraulic push rod 31, thereby simulating the pushing force generated during the guiding process of the underground static pushing rotary guide drilling tool.

[0038] An embodiment of the present invention provides an assembled static push-type rotary guide tool test method, which is applied to the above-mentioned device, and the method comprises the following steps: Step 1: Determine the preset simulated downhole working conditions and assemble the required modules; Step 2: Determine the dimensions of the simulated drilling tool and the wellbore 11 and the roughness of the inner side of the wellbore 11; Step 3: Control the lifting frame 5 to lift the entire well inclination platform 4, adjust it to the desired simulated well inclination angle, lock the lifting frame, fix the fixed bearing 6 to the bearing support 7 at the corresponding position, and lock the stabilizing bolt 2; Step 4: Install the rock drilling module. The magnetic powder brake 26 is installed on the test assembly platform 8 through the magnetic powder brake sliding platform 28 and fixed with bolts. The vibrator 27 is installed on the test assembly platform 8 through the vibrator sliding platform 29 and fixed with bolts. According to the needs of the simulated test conditions, the vibrator 27 can be switched to different types of rocks, and a scaled drill bit can be installed at the end of the simulated drill rod extension rod 35; Step 5: Fix the wellbore 11 in sections on the test assembly platform 8, connect the two sections of the wellbore 11 through the waterproof flange sleeve 20, and install the simulated drill rod 19 into the wellbore 11, and connect the two ends of the simulated drill rod 19 to the rock drilling module and the power module respectively; Step 6: Install the high temperature module, lock the flexible high temperature electric heating sleeve 36 with the outer wall of the wellbore 11, and check the tightness between the flexible high temperature electric heating sleeve 36, the wellbore 11 and each device; Step 7: Install the guide module, start the electric hydraulic push rod 31, and input the guide force required for simulation; Step 8: Check the tightness of all joints of the device and inject drilling fluid; Step 9: Start the power module and input the torque and speed required for the test by controlling the rotary drive 18; optionally, when the vibrator 27 in the rock drilling module is switched to a different type of rock and a scaled drill bit is installed at the end of the simulated drill rod extension rod 35, the drilling pressure of the simulated drill rod 19 is provided by the rotary drive sliding platform 41 in conjunction with the scissor jack 39; Step 10: Collect relevant data and observe test phenomena through the measurement module, analyze the measurement data in real time, determine the motion state of the simulated drilling tool and analyze the fatigue life.

[0039] By replacing different modules (including well inclination module, high temperature module, and guide module, which correspond to step 3, step 6, and step 7, respectively) or parameters such as drill pipe, wellbore 11 size, and inner side roughness of wellbore 11, repeating test steps 1, step 2, step 4, step 5, step 8, step 9, and step 10, simulation of bottom hole assembly tools under different working conditions can be achieved.

[0040] In the actual simulation process, for the well deviation module in step 3, the well deviation effect may be considered or not. For the high temperature module in step 6, the high temperature effect may be considered or not. For the guide module in step 7, the guide force effect may be considered or not.

[0041] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An assembled static push-type rotary guide tool test device, characterized in that: Including simulated drill pipe, well inclination module, power module, drilling fluid circulation module, measurement module, rock drilling module and guidance module; The well inclination module includes a test frame, a stabilizing bolt, a well inclination platform, a lifting frame, a fixed bearing, a bearing support, a well inclination platform support rod, a test assembly platform, a platform fixing bolt and a platform connecting bolt; the test frame is composed of a test frame vertical beam and two symmetrically arranged test frame cross beams fixedly connected; the power module includes a rotary drive, a scissor jack, a rotary drive sliding platform and a fixed plate; the drilling fluid circulation module includes a wellbore, a water pump, a water tank, a flow meter, a water inlet pipeline, a water outlet pipeline, a wellbore support, a waterproof flange sleeve, a linear sliding bearing, a waterproof partition and a rotary joint; the measurement module includes a wireless strain sensor, a wireless triaxial acceleration sensor, an eddy current sensor, a camera, a torque sensor, a pressure sensor, a data center and an analysis terminal; the rock drilling module includes a magnetic powder brake, an exciter, a magnetic powder brake sliding platform, an exciter sliding platform and a simulated drill pipe extension rod; the guide module includes a guide support rod, an electric hydraulic push rod and a thick-walled linear sliding bearing; In the well inclination module, the vertical beam of the test frame is fixedly connected to the cross beam of the test frame, and the vertical beam of the test frame is provided with a stabilizing bolt, and the vertical beam of the test frame is provided with a slot; the cross beam of the test frame is provided with a bearing support, and two symmetrically arranged cross beams of the test frame are provided with slots; the lifting frame is a hydraulic jack, which is used to lift the well inclination platform; the four corners of the well inclination platform are fixedly connected with well inclination platform support rods, the well inclination platform support rods at the two front corners of the well inclination platform slide in the slots of the vertical beam of the test frame, and the well inclination platform support rods at the two rear corners of the well inclination platform rotate in the slots of the cross beam of the test frame; the well inclination platform support rods at the two rear corners of the well inclination platform are connected to fixed bearings, and the fixed bearings are fixed on the bearing supports; several of the test assembly platforms are fixed to the well inclination platforms by platform fixing bolts, and two adjacent test assembly platforms are connected by platform connecting bolts; equipment installation holes for installing test equipment are reserved on the test assembly platform; In the power module, the rotary drive controls the motor through the data center, and connects the simulated drill rod through a clamping expansion sleeve to achieve the adjustment of the drive speed and torque transmission; the drilling pressure of the simulated drill rod is achieved by controlling the scissor jack to push the rotary drive sliding platform; a fixed plate is provided on the end side of the test assembly platform, and the scissor jack is fixed to the fixed plate with bolts; In the drilling fluid circulation module, the water pump is connected to the water tank through a pipeline, the water pump is connected to the simulated drill pipe through a water inlet pipeline, the simulated drill pipe outlet is arranged in the wellbore, and the wellbore is connected to the water tank through a water outlet pipeline; the flow meter and the rotary joint are installed on the fluid channel of the simulated drill pipe; a plurality of the wellbore supports are installed on the test assembly platform with bolts, and are assembled concentrically with the wellbore, and the wellbore supports are used to fix the wellbore; the linear sliding bearing, the simulated drill pipe and the simulated drill pipe extension rod are assembled concentrically, and the linear sliding bearing allows the simulated drill pipe and the simulated drill pipe extension rod to vibrate and rotate axially; In the measurement module, the wireless strain sensor and the wireless triaxial acceleration sensor are circumferentially pasted on the surface of the simulated drill pipe at an interval of 120°; the wireless strain sensor is used to measure the strain at a certain position of the simulated drill pipe, and the fatigue damage of the simulated drill pipe is calculated by using the fatigue damage model in combination with the rain flow counting method; the wireless triaxial acceleration sensor is used to measure the triaxial acceleration at a certain position of the simulated drill pipe, and perform data conversion to obtain the time domain waveform, frequency domain characteristics and direction change of the triaxial acceleration; the eddy current sensor senses the distance change between the surface of the simulated drill pipe and the sensor, and collects the displacement data of the simulated drill pipe in three directions in real time; the camera is fixed on the test assembly platform with bolts, and is used to shoot the motion process of a certain cross section of the simulated drill pipe in high-speed operation, and capture the dynamic behavior of the drill pipe under the influence of multiple working conditions; the torque sensor and the pressure sensor are both fixed on the rotary drive sliding platform, the torque sensor is fixed on the front side of the rotary drive, and the pressure sensor is fixed on the front side of the scissor jack, and the torque sensor and the pressure sensor are respectively used to measure the torque and drilling pressure borne by the simulated drill pipe; the data center is connected to the analysis terminal; In the rock drilling module, the magnetic powder brake is fixed on the magnetic powder brake sliding platform; the vibrator is fixed on the vibrator sliding platform; the magnetic powder brake and the vibrator apply counter torque and drilling pressure according to the working signal input from the data center; the magnetic powder brake sliding platform and the vibrator sliding platform are both installed on the test assembly platform; the simulated drill rod extension rod is connected to the simulated drill rod; In the guide module, the electric hydraulic push rod is installed on the wellbore to apply guiding force to the simulated drill rod; the outer side of the thick-walled linear sliding bearing is provided with equipment grooves spaced 120° in an annular direction to install and lock the electric hydraulic push rod; the thick-walled linear sliding bearing is assembled concentrically with the wellbore and the simulated drill rod.

2. The assembled static push-type rotary guide tool test device according to claim 1 is characterized in that: It also includes a high-temperature module, which includes a flexible high-temperature electric heating sleeve and a temperature control system; the flexible high-temperature electric heating sleeve has equipment holes in the measuring module and the guide module for the installation of equipment, and the equipment holes between the flexible high-temperature electric heating sleeve and the measuring module and the guide module are provided with sealing rings; the temperature of the flexible high-temperature electric heating sleeve is controlled by the temperature control system and the data center, and the flexible high-temperature electric heating sleeve is arranged on the outside of the wellbore; the temperature control system is fixed to the well inclination platform with bolts.

3. The assembled static push-type rotary guide tool test device according to claim 1 is characterized in that: Two adjacent wellbores are connected by a waterproof flange sleeve, and the waterproof flange sleeve and the well wall are sealed by an O-ring, wherein waterproof baffles are provided at both ends of the waterproof flange sleeve connecting the power module and the drilling module to form a closed drilling fluid circulation space; a hole is provided in the center of the waterproof baffle for assembling a linear sliding bearing, and sealing rings are provided at the hole of the waterproof baffle and on the outside of the linear sliding bearing.

4. The assembled static push-type rotary guide tool test device according to claim 1 is characterized in that: The wireless strain sensor and the wireless triaxial acceleration sensor are both provided with waterproof shells on their outer sides.

5. The assembled static push-type rotary guide tool test device according to claim 1, characterized in that: The end of the simulated drill rod is provided with a male thread.

6. The assembled static push-type rotary guide tool test device according to claim 5 is characterized in that: The simulated drill rod extension rod is a solid rod, and a female thread is arranged at the end of the simulated drill rod extension rod. The female thread at the end of the simulated drill rod extension rod is connected with the male thread at the end of the simulated drill rod.

7. The assembled static push-type rotary guide tool test device according to claim 1 is characterized in that: The wellbore is provided with an equipment hole for installing an electric hydraulic push rod, and a sealing ring is provided in the equipment hole between the electric hydraulic push rod and the wellbore.

8. The assembled static push-type rotary guide tool test device according to claim 1, characterized in that: An annulus is left between the thick-walled linear sliding bearing and the wellbore to ensure the circulation of drilling fluid.

9. An assembled static push-type rotary guide tool test method, characterized in that: Applied to the device according to any one of claims 1 to 8, the method comprises the following steps: Step 1: Determine the preset simulated downhole working conditions and assemble the required modules; Step 2: Determine the simulated drilling tool and wellbore dimensions and the roughness of the wellbore interior; Step 3: Control the lifting frame to lift the entire well inclination platform, adjust it to the desired simulated well inclination angle, lock the lifting frame, fix the fixed bearing to the bearing support at the corresponding position, and tighten the stabilizing bolt; Step 4: Install the rock drilling module, install the magnetic powder brake on the test assembly platform through the magnetic powder brake sliding platform and fix it with bolts, and install the vibrator on the test assembly platform through the vibrator sliding platform and fix it with bolts; Step 5: Fix the wellbore in sections on the test assembly platform. Connect the two sections of the wellbore through waterproof flange sleeves. Install the simulated drill pipe into the wellbore. The two ends of the simulated drill pipe are connected to the rock drilling module and the power module respectively. Step 6: Install the high temperature module, lock the flexible high temperature electric heating sleeve with the outer wall of the wellbore, and check the tightness between the flexible high temperature electric heating sleeve, the wellbore and each device; Step 7: Install the guide module, start the electric hydraulic push rod, and input the guide force required for the simulation; Step 8: Check the tightness of all joints of the device and inject drilling fluid; Step 9: Start the power module and input the torque and speed required for the test by controlling the rotary drive; Step 10: Collect relevant data and observe test phenomena through the measurement module, analyze the measurement data in real time, determine the motion state of the simulated drilling tool and analyze the fatigue life.

10. The assembled static push-type rotary guide tool test method according to claim 9, characterized in that: In the steps, when the vibrator in the rock drilling module is switched to a different type of rock and a scaled drill bit is installed at the end of the simulated drill rod extension rod, the drilling pressure of the simulated drill rod is provided by the rotary drive sliding platform in conjunction with the scissor jack.

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