A measurement-while-drilling system that facilitates assembly operations

Abstract

The application relates to the technical field of geological exploration, in particular to a measurement-while-drilling system convenient to assemble and operate, and aims at the problem that the measurement instrument in the measuring sub of the measurement system in the prior art is inconvenient to disassemble and assemble, and the following scheme is proposed, which comprises ground equipment, a drill pipe and a measuring sub installed on the drill pipe, the measuring sub comprises a shell, a base fixed on the inner wall of one side of the shell and a measurement instrument installed on the base, an operating port is formed in the outer wall of the shell, a detachable sealing cover is installed in the operating port, the measurement instrument comprises a protective shell and a measurement assembly installed in the protective shell, and the protective shell is placed on the base. The application can not only realize the disassembly and assembly of the measurement instrument by using air pressure, but also greatly facilitates the operator to open the sealing cover under the condition that the mud outside the measuring sub is solidified, so that the operation difficulty is reduced, and time is saved.

Description

Technical Field

[0001] This invention relates to the field of geological exploration, and in particular to a drilling measurement system that is easy to assemble and operate. Background Technology

[0002] In geological exploration, ensuring the accuracy of survey data and being able to adjust the approach as needed based on drilling conditions are key technical aspects of drilling engineering. Existing measurement-while-drilling (MWD) systems generally include surface equipment and underground measurement setups. The measuring instruments of the underground measurement device are mainly housed in the measurement sub. After the measurement is completed, the measuring equipment inside the measurement sub needs to be removed for data analysis.

[0003] Currently, due to the relatively small internal space of the existing measurement sub, it is inconvenient to use many auxiliary tools to assist in disassembly and assembly, which makes the disassembly and assembly of the measuring instrument quite troublesome. Therefore, this solution proposes a drilling measurement system that is easy to assemble and operate. Summary of the Invention

[0004] The present invention proposes a drilling measurement system that is easy to assemble and operate, which solves the problem of inconvenient disassembly and assembly of measuring instruments in the measurement sub of the existing measurement system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drilling measurement system that is easy to assemble and operate includes surface equipment, drill pipe, and a measurement section mounted on the drill pipe. The measurement section includes a housing, a base fixed to the inner wall of one side of the housing, and a measuring instrument mounted on the base. An operation port is provided on the outer wall of the housing, and a detachable sealing cover is installed inside the operation port. The measuring instrument includes a protective shell and a measuring component installed inside the protective shell. The protective shell is placed on the base. Multiple material fixing components for fixing the protective shell are movably installed on the outer wall of the base on the side where the protective shell is placed, and the multiple material fixing components are arranged around the protective shell. A groove is provided on the side of the base that is fixed to the inner wall of the housing. Multiple cylinders are installed in the groove. One end of the telescopic part of the multiple cylinders is respectively connected to the multiple material fixing components for driving their movement. An air supply pipe is installed on the outer wall of the housing for driving the telescopic parts of the multiple cylinders to extend and retract. Two auxiliary mechanisms are also installed inside the housing, respectively located on both sides of the operation port, for lifting the sealing cover.

[0007] The auxiliary mechanism includes a cylinder 1 rotatably connected to the inner wall of one side of the outer casing where the operating port is located, a mounting plate movably connected to the inner wall of the other side of the outer casing via a connector, and a cylinder 3 mounted on the inner wall of that side for driving the mounting plate to move. One end of the telescopic part of the cylinder 1 is fixed with a fixed ball, and one end of the fixed part of the cylinder 1 is hinged to a connecting rod. The other end of the connecting rod is hinged to the outer wall of the mounting plate. An abutment plate is fixed on the mounting plate. The auxiliary mechanism also includes an inflation assembly mounted on the base for inflating the cylinder 1 to drive the telescopic part of the cylinder 1 to extend and retract. The abutment plate cooperates with the inflation assembly. An air supply pipe 2 for driving the telescopic part of the cylinder 3 to extend and retract is installed on the outer casing.

[0008] The above technical solution not only allows for the assembly and disassembly of measuring instruments using air pressure, but also greatly facilitates the operator in opening the sealing cover when the mud on the outside of the measuring section has solidified, thereby reducing the difficulty of operation and saving time.

[0009] As a further improvement to the above solution, the solidification assembly includes a movable block that slides on the outer wall of the base via a sliding joint and a clamping plate that is mounted on the movable block via an elastic member. The surface of the base is provided with a connecting groove for mounting the sliding joint. The sliding joint includes a limiting rod fixed in the connecting groove and a slider that is movably sleeved outside the limiting rod. One end of the slider is fixedly connected to one side of the outer wall of the movable block, and the other end of the slider extends into the groove and is fixedly connected to one end of the telescopic part of one of the cylinders.

[0010] The above technical solution allows for easy mounting of measuring instruments on the base, saving operation time.

[0011] As a further improvement to the above solution, a buffer hole is provided on the outer wall of the moving block near the clamping plate. The elastic element includes a buffer column movably disposed in the buffer hole and a spring fixed on the inner wall of the buffer hole. One end of the buffer column is fixedly connected to one end of the spring, and the other end of the buffer column extends to the outside of the buffer hole and is fixedly connected to the outer wall of the clamping plate. Multiple locking blocks are fixed on the outer wall of the clamping plate away from the buffer column. The outer wall of the protective shell of the measuring instrument is provided with locking holes that match the locking blocks. Multiple positioning blocks are fixed on the side of the clamping plate that is fixed to the buffer column.

[0012] The above technical solution allows the measuring instrument to be positioned using a clamp before the material fixing mechanism starts, ensuring that the measuring instrument will not shift position after the fixing mechanism starts running, thus guaranteeing that the material fixing mechanism can clamp the measuring instrument.

[0013] As a further improvement to the above solution, the inflation assembly includes a piston cylinder with an opening at one end, fixed to the outer wall of the base; a piston plate movably installed inside the piston cylinder; a sealing ring sleeved on the outer ring of the piston plate; and a piston rod fixed to the outer wall of the piston plate facing the opening. The opening of the piston cylinder faces the abutment plate, and a limit ring is fixed inside the opening. A positioning plate and a second spring are movably sleeved on the outer end of the piston rod extending out of the piston cylinder. One end of the positioning plate is fixed to the outer wall of the base, and the second spring is located on the side of the positioning plate away from the piston cylinder. A spring clip is sleeved on the outside of the piston rod, and the second spring abuts between the spring clip and the positioning plate. The bottom of the abutment plate is a right-angled triangular structure, and the inclined surface of the triangle faces the side closer to the piston cylinder. The end of the piston rod located outside the piston cylinder abuts against the inclined surface of the triangle. The piston cylinder and cylinder one are connected by a connecting pipe to transport the air in the piston cylinder to cylinder one when the air in the piston cylinder is compressed.

[0014] With the above technical solution, when the seal is opened, the air in the piston cylinder is forced into the cylinder as the cylinder rotates, thereby extending the telescopic part of the cylinder. When the cylinder rotates back, the air that was forced into the cylinder can be drawn back into the piston cylinder, thereby retracting the telescopic part of the cylinder.

[0015] As a further improvement to the above solution, a sliding groove is provided on the inner wall of the housing on which the mounting plate is installed. The connecting member includes a sleeve rod fixed in the sliding groove and a sliding sleeve and a spring three movably sleeved outside the sleeve rod. One end of the sliding sleeve is fixedly connected to the outer wall of the mounting plate, one end of the spring three is fixedly connected to the outer wall of the sliding sleeve, and the other end of the spring three is fixedly connected to the inner wall of one side of the sliding groove.

[0016] The above technical solution allows the mounting plate to automatically spring back after the pressure inside cylinder three is released.

[0017] As a further improvement to the above solution, a fixed pipe is installed in the groove, and the fixed pipe is connected to multiple cylinders 2 through pipes. One end of the air supply pipe 1 extends into the groove and connects with the fixed pipe. A one-way valve and a vent pipe 1 are installed on the air supply pipe 1. A gate valve 1 is installed on the vent pipe 1. Both the vent pipe 1 and the one-way valve 1 are located outside the housing, and the vent pipe 1 is located between the one-way valve 1 and the fixed pipe. Cylinders 3 in the two auxiliary mechanisms are connected through a branch pipe. One end of the air supply pipe 2 extends into the housing and connects with the branch pipe. A one-way valve 2 and a vent pipe 2 are installed on the air supply pipe 2. A gate valve 2 is installed on the vent pipe 2. Both the vent pipe 2 and the one-way valve 2 are located outside the housing, and the vent pipe 2 is located between the one-way valve 2 and the cylinder 3.

[0018] The above technical solution allows an external air compressor to be used to supply air into air pipes one and two, thereby enabling the solid material assembly and auxiliary mechanisms to operate normally.

[0019] As a further improvement to the above solution, a fixing groove for fixing the sealing cover is provided on the top edge of the operating port, and an installation groove is provided on the inner ring of the operating port. A hollow sealing ring is installed in the installation groove, and the inner ring of the sealing ring extends into the operating port. The sealing ring and the fixing tube are connected by a connecting tube.

[0020] The above technical solution can be used to seal the gap between the sealing cover and the operating port by inflating the sealing ring. This achieves a better sealing effect.

[0021] As a further improvement to the above solution, an installation pipe and a connecting cap are fixed on one side of the outer shell where the first gas pipe and the second gas pipe are installed. The connecting cap is located inside the installation pipe and is coaxially arranged with the installation pipe. Both the inner ring of the installation pipe and the inner ring of the connecting cap are provided with internal threads.

[0022] The above technical solution facilitates the assembly and disassembly of the measuring sub and the drill pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By coordinating the air supply pipe, base, cylinder, and fixing assembly, air pressure can be used to fix the measuring instrument, greatly facilitating its assembly and disassembly. Simultaneously, the sealing ring allows for pressure to be applied while fixing the instrument, causing it to expand and seal the gap between the sealing cover and the operating hole, preventing external mud and water from entering the casing.

[0025] 2. By coordinating the second air supply pipe and the auxiliary mechanism, air can be injected into the second air supply pipe when the sealing cover is opened, thereby using air pressure to generate power to push the sealing cover outwards towards the operating port, thus avoiding the problem of the sealing cover being difficult to open after the dirt adhering to the outer shell has hardened.

[0026] 3. By setting up the inflation component, when air enters the cylinder from the piston cylinder, it drives the cylinder to rotate and simultaneously drives the telescopic part of the cylinder to extend. This allows the fixed ball to move directly below the sealing cover when the sealing cover is opened. When the piston cylinder draws the air back into the cylinder, it drives the telescopic part of the cylinder to retract, causing the fixed ball to move to a position away from directly below the operating port, thus avoiding interference with the disassembly and assembly of the measuring instrument. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the measurement process of the present invention;

[0028] Figure 2 for Figure 1 A front sectional view of the middle measurement section;

[0029] Figure 3 for Figure 2 Schematic diagram of the auxiliary mechanism;

[0030] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0031] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0032] Figure 6 This is a schematic diagram of the inflatable assembly.

[0033] Figure 7 A cross-sectional view of the outer shell for measuring the short section.

[0034] Explanation of key symbols:

[0035] 1. Ground equipment; 2. Outer casing; 3. Mounting pipe; 4. Air supply pipe one; 5. Connecting cap; 6. Air supply pipe two; 7. Connecting rod; 8. Mounting plate; 9. Connecting pipe one; 10. Cylinder one; 11. Fixed ball; 12. Sealing cap; 13. Measuring instrument; 14. Sealing ring; 15. Fixed pipe; 16. Inflation assembly; 17. Base; 18. Slider; 19. Cylinder two; 20. Branch pipe; 21. Cylinder three; 22. Sliding sleeve; 23. Spring clip; 24. Abutment plate; 25. Moving block; 26. Clamping plate; 27. Buffer column; 28. Connecting groove; 29. ​​Limiting rod; 30. Clip; 31. Connecting pipe two; 32. Sealing ring; 33. Piston plate; 34. Piston rod; 35. Limiting ring; 36. Piston cylinder; 37. Fixed groove; 38. Mounting groove; 39. Drill rod. Detailed Implementation

[0036] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0037] Example 1:

[0038] Please combine Figure 1-4 and Figure 7This embodiment provides a drilling measurement system that is easy to assemble and operate. It includes a ground equipment 1, a drill pipe 39, and a measuring section mounted on the drill pipe 39. The measuring section includes a housing 2, a base 17 fixed to the inner wall of one side of the housing 2, and a detachable measuring instrument 13 mounted on the base 17. An operating port is provided on the outer wall of the housing 2. A detachable sealing cover 12 is installed in the operating port to seal the operating port. A fixing groove 37 for fixing the sealing cover 12 is provided on the top edge of the operating port. An installation groove 38 is provided on the inner ring of the operating port. A connecting block is fixed on the top edge of the sealing cover 12. The connecting block is engaged in the installation groove 38 and fixed together with the installation groove 38 by bolts.

[0039] The measuring instrument includes a protective housing and measuring components installed inside the protective housing. The protective housing is placed on a base 17. Multiple fixing components for securing the protective housing are movably mounted on the outer wall of the side of the base 17 where the protective housing is placed. The protective housing is located between the multiple fixing components. A groove is provided on the side of the base 17 that is fixed to the inner wall of the outer shell 2. Multiple cylinders 19 are installed in the groove. One end of the telescopic part of each cylinder 19 is connected to a fixing component for driving its movement. The multiple fixing components enclose an installation space, and the measuring instrument is located within the installation space. An air supply pipe 4 for driving the telescopic parts of the cylinders 19 is installed on the outer wall of the outer shell 2. The fixing components include a movable block 25 that slides onto the outer wall of the base 17 via a sliding joint and a clamping plate 26 that is mounted on the movable block 25 via an elastic element. A connecting groove 28 for installing the sliding joint is provided on the surface of the base 17. The sliding joint includes a limiting rod 29 fixed in the connecting groove 28 and a clamping plate 26 movably sleeved on the limiting rod. The slider 18 outside the positioning rod 29 has one end fixed to the outer wall of the moving block 25, and the other end extends into the groove and is fixed to one end of the telescopic part of one of the cylinders 19. The width of the slider 18 is the same as the width of the connecting groove 28, so as to prevent the slider 18 from sliding in the mounting groove. A fixing pipe 15 is installed in the groove, and the fixing pipe 15 is connected to multiple cylinders 19 through pipes. One end of the air supply pipe 4 extends into the groove and is connected to the fixing pipe 15. A one-way valve and a vent pipe 1 are installed on the air supply pipe 4. A gate valve 1 is installed on the vent pipe 1. The vent pipe 1 and the one-way valve 1 are both located outside the outer shell 2, and the vent pipe 1 is located between the one-way valve 1 and the fixing pipe 15. When air is input into the cylinder 19, its extension part will extend outward, thereby driving the slider 18 to move along the length direction of the limiting rod 29, thereby driving the solid material assembly to move, and thus adjusting the size of the installation space to realize the disassembly and assembly of the measuring instrument.

[0040] A buffer hole is provided on the outer wall of the side where the clamping plate 26 is installed on the movable block 25. The elastic element includes a buffer post 27 movably disposed in the buffer hole and a spring 1 fixed on the inner wall of the side of the buffer hole. One end of the buffer post 27 is fixedly connected to one end of the spring 1, and the other end of the buffer post 27 extends to the outside of the buffer hole and is fixedly connected to the outer wall of the clamping plate 26. The outer periphery of the buffer post 27 is a rectangular structure. The inner wall of the buffer hole matches the outer periphery of the buffer post 27, thereby preventing the buffer post 27 from rotating in the buffer hole. Multiple locking blocks 30 are fixed on the outer wall of the clamping plate 26 away from the buffer post 27. The outer wall of the protective shell of the measuring instrument 13 is provided with locking holes that match the locking blocks 30. Multiple positioning blocks are fixed on the side of the clamping plate 26 that is fixed to the buffer post 27. The positioning blocks are used to hold the clamping plate against the measuring instrument when clamping it to prevent the spring 1 from being over-compressed.

[0041] A hollow sealing ring 14 is installed in the mounting groove 38. The inner ring of the sealing ring 14 extends into the operating port. The sealing ring 14 is connected to the fixing tube 15 through the connecting tube 31. When the sealing ring 14 is inflated, it will expand, thereby sealing the gap between the sealing cover 12 and the operating port.

[0042] On the side of the outer casing 2 where the first gas supply pipe 4 and the second gas supply pipe 6 are installed, the mounting pipe 3 and the connecting cap 5 are fixed. The connecting cap 5 is located inside the mounting pipe 3 and is coaxially arranged with the mounting pipe 3. The inner ring of the mounting pipe 3 and the inner ring of the connecting cap 5 are both provided with internal threads. The arrangement of the mounting pipe 3 and the connecting cap 5 facilitates the fixing of the measuring sub to the drill rod 39.

[0043] The implementation principle in this embodiment is as follows: When installing the measuring instrument, the sealing cover 12 is opened, and then the measuring instrument is placed in the installation space, with the clamping plate 26 abutting against the outer wall of the protective shell of the measuring instrument. The locking block on the clamping plate 26 is also locked inside the locking hole on the protective shell. Then, the sealing cover 12 is put back on the operating port and the sealing cover 12 is fixed with bolts. Then, with the gate valve closed, air is injected into the air supply pipe 4 using an external air compressor. After the air enters the cylinder 19, the extension of the cylinder 19 is extended, thereby driving the moving block 25 to move closer to the measuring instrument until the clamping plate 26 clamps the protective shell of the measuring instrument. The air compressor can no longer input the air into the air supply pipe 4, and then the air supply stops. While the air supply pipe 4 is supplying air into the fixed pipe 15, the air in the fixed pipe 15 will also be input into the sealing ring 14, thereby causing the sealing ring 14 to expand and seal the gap between the sealing cover 12 and the operating port.

[0044] When it is necessary to disassemble the measuring instrument, simply remove the measuring section from the drill rod 39, then open the gate valve to release the pressure in the cylinder 19 and the sealing ring 14, then open the sealing cover 12, then move the clamp 26 to disengage it from the measuring instrument protective shell, and push the clamp block out of the clamp hole, then the measuring instrument can be removed from the base.

[0045] Example 2:

[0046] Combination Figure 2-6 This embodiment, based on embodiment 1, further improves upon the following: Two auxiliary mechanisms are installed inside the outer casing 2, respectively positioned on either side of the operating port and used to lift the sealing cover 12. Each auxiliary mechanism includes a cylinder 10 rotatably connected to the inner wall of the side of the outer casing 2 where the operating port is located, a mounting plate 8 movably connected to the inner wall of the other side of the outer casing 2 via a connector, and a cylinder 21 mounted on that inner wall for driving the mounting plate 8 to move. The connection point between cylinder 10 and the outer casing 2 is close to the edge of the telescopic portion of cylinder 10, thereby ensuring a smooth connection between cylinder 10 and the inner wall of the outer casing 2. The points form a force-saving lever, and the long end of the force-saving lever is located at the fixed end of cylinder 10. A fixed ball 11 is fixed to one end of the telescopic part of cylinder 10. A connecting rod 7 is hinged to one end of the fixed part of cylinder 10. The other end of the connecting rod 7 is hinged to the outer wall of the mounting plate 8. An abutment plate 24 is fixed on the mounting plate 8. The auxiliary mechanism also includes an inflation assembly 16 mounted on the base 17 for inflating cylinder 10 to drive the telescopic part of cylinder 10 to extend and retract. The abutment plate 24 cooperates with the inflation assembly 16. An air supply pipe 2 6 for driving the telescopic part of cylinder 3 21 to extend and retract is installed on the outer shell 2.

[0047] The inflation assembly 16 includes a piston cylinder 36 with an opening at one end, fixed to the outer wall of the base 17; a piston plate 33 movably installed inside the piston cylinder 36; a sealing ring 32 sleeved on the outer ring of the piston plate 33; and a piston rod 34 fixed to the outer wall of the piston plate 33 facing the opening. The opening end of the piston cylinder 36 faces the abutment plate 24, and a limit ring 35 is fixed inside the opening. The other end of the piston rod 34 extends to the piston cylinder 36. The piston rod 34 is movably sleeved on a positioning plate and a second spring. One end of the positioning plate is fixed to the outer wall of the base 17. The second spring is located on the side of the positioning plate away from the piston cylinder 36. A spring clip 23 is sleeved on the outside of the piston rod 34. The second spring is located between the spring clip 23 and the positioning plate, with one end of the second spring fixed to the outer wall of the spring clip 23 and the other end fixed to the outer wall of the positioning plate. The bottom of the abutment plate 24 has a right-angled triangular structure, with the inclined surface of the triangle facing towards the piston. On one side of cylinder 36, the piston rod 34 is located outside the piston cylinder 36 and abuts against the triangular inclined surface. The piston cylinder 36 and cylinder 10 are connected by a connecting pipe 9 to deliver air from the piston cylinder 36 to cylinder 10 when the air in the piston cylinder 36 is compressed. Cylinder 31 in the two auxiliary mechanisms are connected by a branch pipe 20. One end of the air supply pipe 26 extends into the outer casing 2 and is connected to the branch pipe 20. A one-way valve 2 and a vent pipe 2 are installed on the air supply pipe 26. A gate valve 2 is installed on the vent pipe 2. Both the vent pipe 2 and the one-way valve 2 are located outside the outer casing 2, and the vent pipe 2 is located between the one-way valve 2 and cylinder 3 21. When air is input into the two cylinders 21 through the air supply pipe 2, it will drive the two mounting plates 8 to move. After the mounting plates 8 move, they will drive the fixed part of cylinder 10 to rotate through the connecting rod 7, thereby causing the telescopic part of cylinder 10 to tilt up and push the sealing cover 12 outward toward the outside of the operating port.

[0048] The inner wall of the outer casing 2, on which the mounting plate 8 is installed, has a sliding groove. The connecting parts include a sleeve rod fixed in the sliding groove, a sliding sleeve 22 movably sleeved outside the sleeve rod, and a spring 3. One end of the sliding sleeve 22 is fixedly connected to the outer wall of the mounting plate 8. The spring 3 is located on the side of the sliding sleeve 22 away from the cylinder 3. One end of the spring 3 is fixedly connected to the outer wall of the sliding sleeve 22, and the other end of the spring 3 is fixedly connected to one side of the inner wall of the sliding groove. The two outer walls of the sliding sleeve 22 respectively abut against the inner walls of the two long sides of the sliding groove, thereby preventing the sliding sleeve 22 from rotating in the sliding groove.

[0049] The implementation principle of this embodiment is as follows: When disassembling the sealing cover 12, air is first input into the air supply pipe 6 through an external air compressor, causing the telescopic parts of the two cylinders 21 to move outward and extend. This, in turn, drives the mounting plate 8 to move away from the cylinders 21, compressing the spring. Simultaneously, after the mounting plate 8 moves, it also drives the cylinder 10 to rotate via the connecting rod 7, causing the telescopic part of the cylinder 10 to rotate towards the side of the sealing cover 12. At this time, as the mounting plate 8 moves, it abuts against... Plate 24 will also push piston rod 34 into the piston cylinder 36, and spring 2 will be compressed. This will cause the air in piston cylinder 36 to enter cylinder 10 through connecting pipe 9, causing the extended end of cylinder 10 to extend outward. Finally, under the rotation of cylinder 10, fixed ball 11 will abut against the bottom surface of sealing cover 12, so that sealing cover 12 can be gradually opened under the rotation of cylinder 10, avoiding the phenomenon that the solidified mud on the outer shell surface makes it inconvenient to open the sealing cover.

[0050] After the sealing cover 12 is opened, the gate valve 1 is opened to release the air in the cylinder housing 19. Under the action of the spring 3, the mounting plate 8 begins to rebound, thereby driving the cylinder 10 to rotate in the opposite direction to the previous rotation. At the same time as the mounting plate 8 begins to rebound, the pressure of the abutment plate 24 on the piston rod 34 is reduced. Then, under the action of the spring 2, the piston rod 34 also begins to rebound, thereby drawing the air in the cylinder 10 back into the piston cylinder 36, causing the extended part of the cylinder 10 to gradually retract, preventing the fixed ball 11 from extending into the area of ​​the operating port and affecting the installation of the measuring instrument.

[0051] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A drilling measurement while drilling system that is easy to assemble and operate, comprising surface equipment, drill pipe, and a measurement sub mounted on the drill pipe, characterized in that, The measuring section includes an outer shell, a base fixed to the inner wall of one side of the outer shell, and a measuring instrument mounted on the base. An operating port is provided on the outer wall of the outer shell, and a detachable sealing cover is installed inside the operating port. The measuring instrument includes a protective shell and a measuring component installed inside the protective shell. The protective shell is placed on the base. Multiple material fixing components for fixing the protective shell are movably installed on the outer wall of the base on the side where the protective shell is placed, and the multiple material fixing components are arranged around the protective shell. A groove is provided on the side of the base that is fixed to the inner wall of the outer shell. Multiple cylinders are installed in the groove. One end of the telescopic part of the multiple cylinders is respectively connected to the multiple material fixing components for driving their movement. An air supply pipe is installed on the outer wall of the outer shell for driving the telescopic parts of the multiple cylinders to extend and retract. Two auxiliary mechanisms are also installed inside the outer shell, respectively located on both sides of the operating port, for lifting the sealing cover. The auxiliary mechanism includes a cylinder 1 rotatably connected to the inner wall of one side of the outer casing where the operating port is located, a mounting plate movably connected to the inner wall of the other side of the outer casing via a connector, and a cylinder 3 mounted on the inner wall of that side for driving the mounting plate to move. One end of the telescopic part of the cylinder 1 is fixed with a fixed ball, and one end of the fixed part of the cylinder 1 is hinged to a connecting rod. The other end of the connecting rod is hinged to the outer wall of the mounting plate. An abutment plate is fixed on the mounting plate. The auxiliary mechanism also includes an inflation assembly mounted on the base for inflating the cylinder 1 to drive the telescopic part of the cylinder 1 to extend and retract. The abutment plate cooperates with the inflation assembly. An air supply pipe 2 for driving the telescopic part of the cylinder 3 to extend and retract is installed on the outer casing.

2. The drilling measurement system according to claim 1, characterized in that, The solidification assembly includes a movable block that slides onto the outer wall of the base via a sliding joint and a clamping plate that is mounted on the movable block via an elastic element. The surface of the base is provided with a connecting groove for mounting the sliding joint. The sliding joint includes a limiting rod fixed in the connecting groove and a slider that is movably sleeved outside the limiting rod. One end of the slider is fixed to one side of the outer wall of the movable block, and the other end of the slider extends into the groove and is fixed to one end of the telescopic part of one of the cylinders.

3. The drilling measurement system according to claim 2, characterized in that, A buffer hole is provided on the outer wall of the movable block near the clamping plate. The elastic element includes a buffer column movably disposed in the buffer hole and a spring fixed on the inner wall of the buffer hole. One end of the buffer column is fixedly connected to one end of the spring, and the other end of the buffer column extends to the outside of the buffer hole and is fixedly connected to the outer wall of the clamping plate. Multiple locking blocks are fixed on the outer wall of the clamping plate away from the buffer column. The outer wall of the protective shell of the measuring instrument is provided with locking holes that match the locking blocks. Multiple positioning blocks are fixed on the side of the clamping plate that is fixed to the buffer column.

4. The drilling measurement system according to claim 1, characterized in that, The inflation assembly includes a piston cylinder with an opening at one end, fixed to the outer wall of the base; a piston plate movably installed inside the piston cylinder; a sealing ring sleeved on the outer ring of the piston plate; and a piston rod fixed to the outer wall of the piston plate facing the opening. The piston cylinder opening faces the abutment plate, and a limit ring is fixed inside the opening. A positioning plate and a second spring are movably sleeved on the outer end of the piston rod extending out of the piston cylinder. One end of the positioning plate is fixed to the outer wall of the base, and the second spring is located on the side of the positioning plate away from the piston cylinder. A spring clip is sleeved on the outside of the piston rod, and the second spring abuts against the spring clip and the positioning plate. The bottom of the abutment plate is a right-angled triangle structure, and the inclined surface of the triangle faces the side closer to the piston cylinder. The end of the piston rod outside the piston cylinder abuts against the inclined surface of the triangle. The piston cylinder and cylinder one are connected by a connecting pipe to transport the air in the piston cylinder to cylinder one when the air in the piston cylinder is compressed.

5. A drilling measurement system that is easy to assemble and operate according to claim 1, characterized in that, The inner wall of the housing with the mounting plate has a sliding groove. The connecting member includes a sleeve rod fixed in the sliding groove and a sliding sleeve and a spring three movably sleeved outside the sleeve rod. One end of the sliding sleeve is fixedly connected to the outer wall of the mounting plate, one end of the spring three is fixedly connected to the outer wall of the sliding sleeve, and the other end of the spring three is fixedly connected to the inner wall of one side of the sliding groove.

6. The drilling measurement system according to claim 1, characterized in that, A fixed pipe is installed in the groove, and the fixed pipe is connected to multiple cylinders 2 through pipes. One end of the air supply pipe 1 extends into the groove and connects with the fixed pipe. A one-way valve and a vent pipe 1 are installed on the air supply pipe 1. A gate valve 1 is installed on the vent pipe 1. Both the vent pipe 1 and the one-way valve 1 are located outside the outer shell, and the vent pipe 1 is located between the one-way valve 1 and the fixed pipe. Cylinders 3 in the two auxiliary mechanisms are connected to each other through a branch pipe. One end of the air supply pipe 2 extends into the outer shell and connects with the branch pipe. A one-way valve 2 and a vent pipe 2 are installed on the air supply pipe 2. A gate valve 2 is installed on the vent pipe 2. Both the vent pipe 2 and the one-way valve 2 are located outside the outer shell, and the vent pipe 2 is located between the one-way valve 2 and the cylinder 3.

7. A drilling measurement system that is easy to assemble and operate according to claim 6, characterized in that, The top edge of the operating port has a fixing groove for fixing the sealing cover, and the inner ring of the operating port has an installation groove. A hollow sealing ring is installed in the installation groove, and the inner ring of the sealing ring extends into the operating port. The sealing ring and the fixing tube are connected by a connecting tube.

8. A drilling measurement system that is easy to assemble and operate according to claim 1, characterized in that, An installation pipe and a connecting cap are fixed on one side of the outer shell where gas pipe one and gas pipe two are installed. The connecting cap is located inside the installation pipe and is coaxial with the installation pipe. Both the inner ring of the installation pipe and the inner ring of the connecting cap are provided with internal threads.

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