CN116591669B - Measurement while drilling system for engineering geological drilling - Google Patents
Measurement while drilling system for engineering geological drilling Download PDFInfo
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- CN116591669B CN116591669B CN202310671091.0A CN202310671091A CN116591669B CN 116591669 B CN116591669 B CN 116591669B CN 202310671091 A CN202310671091 A CN 202310671091A CN 116591669 B CN116591669 B CN 116591669B
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- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 26
- 239000002689 soil Substances 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 238000007792 addition Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000013208 measuring procedure Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention discloses a measurement while drilling system for engineering geological drilling, which relates to the technical field of seabed directional drilling and comprises a drill bit, a drill rod, a transmitting electrode, a pressurizing box, a signal receiving device, a pressurizing part, two stabilizing parts and an auxiliary part, wherein the transmitting electrode is arranged in the drill rod, the signal receiving device is arranged below the pressurizing box, the transmitting electrode is electrically connected with a signal transmitting device on the ground through an insulating cable, the pressurizing part is arranged in the pressurizing box and comprises a center rod, the transmitting electrode is enabled to displace downwards through the arrangement of the pressurizing part, the two stabilizing parts are connected to the pressurizing part in a transmission mode and comprise a stabilizing plate, the stabilizing plate deflects when displacing downwards through the arrangement of the stabilizing parts, and the auxiliary part is arranged on the pressurizing part.
Description
Technical Field
The invention relates to the technical field of submarine directional drilling, in particular to a measurement while drilling system for engineering geological drilling.
Background
Ocean engineering refers to new construction, reconstruction and extension engineering for the purpose of developing, utilizing, protecting and recovering ocean resources, wherein an engineering main body is positioned on one side of a coastline towards the sea, and also comprises engineering on the sea floor, such as submarine tunnel engineering, submarine pipeline, submarine cable engineering and the like.
In order to ensure the safety of engineering construction, drilling investigation is required to be carried out on the condition of the sea bottom, along with the development of an intelligent drilling technology, a measurement-while-drilling technology for transmitting logging data from the bottom of the well to the ground in real time is developed, the measurement-while-drilling technology is divided into a drilling fluid pulse measurement-while-drilling technology and an electromagnetic measurement-while-drilling technology, one is that mud pressure waves are adopted to transmit the data measured at the bottom of the well, the other is that very low-frequency electromagnetic signals are adopted, the data measured at the bottom of the well are transmitted through a drill rod and a stratum, the electromagnetic measurement-while-drilling technology has the advantages of being free from the influence of circulating media, the structural reliability is high, and the existing bidirectional electromagnetic measurement technology can transmit instructions on the ground and transmit control instructions to the bottom of the well through a signal channel formed by the stratum and the drill rod, so that a measuring instrument at the bottom of the well can be controlled.
As disclosed in chinese patent CN201310698427.9, the patent document can automatically perform frequency tuning before the measurement of the resistivity measurement while drilling device, reasonably set parameters of a circuit and an adjusting component to ensure better sensitivity, so that the resistivity measurement while drilling device works at an optimal resonant frequency, and even when temperature or other environmental parameters change, the resistivity measurement while drilling device can be timely adjusted to adapt to the change of the surrounding environmental parameters, thereby effectively avoiding the problem that the optimal resonant frequency of the conventional resistivity measurement while drilling device does not match with the preset resonant frequency in actual work, resulting in inaccurate measurement, and greatly improving the accuracy of the measured data of the resistivity measurement while drilling device.
Based on the search of the prior art, it is known that the resistivity of sea water is relatively low due to the difference between the ocean environment and the land, and the transmission of electromagnetic signals is attenuated in the process. In order to solve the problem, some technical measures are currently available, such as pressing the transmitting electrode into the stratum so as to avoid the attenuation of signals by the sea floor, but one of the modes is a process of pressing the transmitting electrode into the stratum, and the mode of realizing the process is mostly too single, no specific burying mode is adopted for the process, so that the burying effect is poor, and the state of the transmitting electrode at the sea floor is easily influenced and is inconvenient to use in the face of complicated and changeable sea floor conditions.
Disclosure of Invention
The invention aims to provide a measurement while drilling system for engineering geological drilling, which has the effect of efficiently embedding a transmitting electrode so as to ensure the signal intensity between the transmitting electrode and the bottom of a well, and solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the measurement while drilling system for engineering geological drilling comprises a drill bit, a drill rod, a transmitting electrode and a pressurizing box, wherein a signal receiving device is arranged in the drill rod, the transmitting electrode is arranged below the pressurizing box, and the transmitting electrode is electrically connected with a signal transmitting device on the ground through an insulated cable;
the device also comprises a pressurizing component, wherein the pressurizing component is arranged in the pressurizing box and comprises a center rod, and the transmitting electrode is downwards displaced through the arrangement of the pressurizing component;
the device also comprises two stabilizing components, wherein the two stabilizing components are in transmission connection with the pressurizing component and comprise stabilizing plates, and the stabilizing plates deflect while downwards displacing through the arrangement of the stabilizing components;
the device also comprises an auxiliary component, wherein the auxiliary component is arranged on the pressurizing component and comprises auxiliary plates arranged on two sides of the transmitting electrode, and the two auxiliary plates can reciprocate in the horizontal direction while the pressurizing component operates.
Optionally, the pressurizing member includes:
the device comprises a displacement plate, wherein two sliding seats are fixedly connected to the inner wall of a pressurizing box, the opposite sides of the two sliding seats are respectively in sliding connection with the two sides of the displacement plate, the end part of a center rod is fixedly connected to the top end of the displacement plate, a first pressurizing rod is fixedly connected to the bottom end of the displacement plate, a second pressurizing rod is fixedly connected to the inner wall of the first pressurizing rod in a sliding manner, a lever arm of the second pressurizing rod is in sliding connection with the inner wall of the pressurizing box, and a transmitting electrode is fixedly connected to the end part of the second pressurizing rod.
Optionally, the stabilizing component includes:
the first rack row is fixedly connected to the surface of one sliding seat, the back of the displacement plate is fixedly connected with a connecting plate, the inner wall of the connecting plate is rotationally connected with a fixed shaft, a shaft arm of the fixed shaft is fixedly connected with a gear, teeth of the gear are meshed with teeth of the first rack row, the surface of the connecting plate is slidingly connected with a second rack row, and teeth of the second rack row are meshed with teeth of the gear;
the rack row two's bottom fixedly connected with firm pole, the firm board articulates the bottom of firm pole, the surface cover of firm board is equipped with the cooperation section of thick bamboo, the tip rotation of cooperation section of thick bamboo is connected the lever arm of second forcing lever, the cooperation section of thick bamboo with link to each other through first spring between the firm board.
Optionally, the auxiliary component includes:
the two fixing plates are respectively and fixedly connected to the surfaces of the two sliding seats, the surface of the displacement plate is provided with a continuous groove, the groove wall of the continuous groove is slidably connected with a main shaft, the inner walls of the fixing plates are commonly and slidably connected with an auxiliary rod, the inner walls of the auxiliary rod are fixedly connected with the shaft arm of the main shaft, the two ends of the auxiliary rod are fixedly connected with transmission rods, the two transmission rods are slidably connected with the inner wall of the pressurizing box, and the end parts of the transmission rods are respectively and fixedly connected with the surfaces of the auxiliary plates.
Optionally, the device further comprises a locking component for improving the stability of the transmitting electrode and a driving component for driving the central rod to displace.
Optionally, the locking component includes: the two discs are respectively fixedly connected to the end parts of the fixed shafts, the surfaces of the two discs are hinged to hinge rods I, the end parts of the hinge rods I are hinged to hinge rods II, the surface of the connecting plate is fixedly connected with a locking box, the inner wall of the locking box is slidably connected with two sliding plates, the surfaces of the two sliding plates are respectively fixedly connected with the end parts of the hinge rods II, and the opposite sides of the two sliding plates are fixedly connected with two springs II.
Optionally, the driving part includes: the electric push rod is fixedly connected to the inner wall of the pressurizing box, and the push rod head of the electric push rod is fixedly connected with the end part of the center rod.
Optionally, the size of the gear is adapted to the sizes of the first rack row and the second rack row, and the two stabilizing components are symmetrically arranged left and right.
Compared with the prior art, the invention has the following beneficial effects:
1. considering that the resistivity of seawater is relatively low, the transmission of electromagnetic signals can be attenuated in the electromagnetic measurement while drilling process, so that the transmitting electrode is gradually drilled into the seabed layer through the cooperation of the structures such as the first pressurizing rod, the second pressurizing rod, the displacement plate and the like, and the embedding of the transmitting electrode can be completed.
2. According to the invention, through the matching of the structures of the rack row II, the stabilizing plate, the matching cylinder and the like, when the hardness of the seabed layer is relatively low, the second pressurizing rod is more displaced downwards, so that the transmitting electrode is embedded deeper and is further away from the seabed layer, and when the hardness of the seabed layer is relatively high, the supporting force is more applied to the second pressurizing rod, so that the second pressurizing rod is kept stable;
therefore, the embedding process of the transmitting electrode can be automatically adjusted according to the condition of the seabed layer in the embedding process of the transmitting electrode, and the embedding effect of the transmitting electrode is improved.
3. In the process of downward displacement embedding of the transmitting electrode, the soil on the seabed layer in the attaching area around the transmitting electrode is sunk, and the soil on the seabed layer relatively far away from the transmitting electrode is slightly raised, so that the two auxiliary plates are subjected to reciprocating displacement in the horizontal direction through the cooperation of the structures of the fixing plate, the transmission rod, the auxiliary plates and the like, and the soil on the seabed layer can fully wrap the side face of the transmitting electrode, so that the embedding quality of the transmitting electrode is further improved.
4. The embedded state of the transmitting electrode is locked through the cooperation of the structures such as the sliding plate, the second spring and the locking box, so that the embedded quality is further improved.
Drawings
FIG. 1 is an isometric view of a drill bit and drill pipe portion of the present invention;
FIG. 2 is an isometric view of a transmitting electrode and pressurized tank portion of the present invention;
FIG. 3 is a cross-sectional isometric view of a pressurized tank portion of the present invention in a front view;
FIG. 4 is an enlarged view of the structure of FIG. 3A in accordance with the present invention;
FIG. 5 is a cross-sectional isometric view of a pressurized tank portion of the present invention in a back view;
FIG. 6 is an enlarged view of the dead axle connection of FIG. 5 in accordance with the present invention;
FIG. 7 is a cross-sectional view of the connecting portion of the lock box of the present invention;
FIG. 8 is a cross-sectional view of the connection of the stabilizing plate to the mating cylinder of the present invention;
fig. 9 is a diagram showing the connection relationship between the first pressurizing rod and the second pressurizing rod according to the present invention.
In the figure: 1. a drill bit; 2. a drill rod; 3. an emitter electrode; 4. a pressurizing tank; 5. a signal receiving device; 6. an insulated cable; 7. a central rod; 8. a stabilizing plate; 9. an auxiliary plate; 10. a displacement plate; 11. a slide; 12. a first pressurizing rod; 13. a second pressurizing rod; 14. the racks are arranged in a row; 15. a connecting plate; 16. fixing the shaft; 17. a gear; 18. a rack row II; 19. a stabilizing rod; 20. a mating cylinder; 21. a first spring; 22. a fixing plate; 23. a continuous tank; 24. a main shaft; 25. an auxiliary lever; 26. a transmission rod; 27. a disc; 28. a first hinging rod; 29. a hinge rod II; 30. a lock box; 31. a slide plate; 32. a second spring; 33. an electric push rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1 to 9, the present invention provides a technical solution: the measurement while drilling system for engineering geological drilling comprises a drill bit 1, a drill rod 2, a transmitting electrode 3 and a pressurizing box 4, wherein a signal receiving device 5 is arranged in the drill rod 2, the transmitting electrode 3 is arranged below the pressurizing box 4, and the transmitting electrode 3 is electrically connected with a signal transmitting device on the ground through an insulated cable 6.
More specifically, in this embodiment, a worker sends an instruction to the transmitting electrode 3 and the signal receiving device 5 through the signal transmitting device on the offshore platform, and then acquires the potential difference between two ends of the signal receiving device 5, and processes the potential difference to obtain a control instruction transmitted from the ground, so as to control a measuring instrument preset in the drill rod 2 to start, and thus the measuring procedure can be completed.
Notably, the device also comprises a pressurizing component, wherein the pressurizing component is arranged in the pressurizing box 4 and comprises a center rod 7, and the transmitting electrode 3 is downwards displaced through the arrangement of the pressurizing component;
still including two firm parts, two firm parts all transmission are connected on the pressurization part, including firm board 8, through firm part's setting for firm board 8 deflects in the downward displacement.
More specifically, after the pressurizing box 4 is lowered to the seabed, the transmitting electrode 3 is downwards displaced through the arrangement of the pressurizing component, so that the transmitting electrode 3 is pressed into the seabed layer, the attenuation of a seawater layer to signals can be avoided, the quality of the signal transmitted by the ocean measurement while drilling is improved, and simultaneously, the two stabilizing plates 8 are synchronously deflected while downwards displacing in the operation process of the pressurizing component through the arrangement of the two stabilizing components, so that the stability of the transmitting electrode 3 in the process of pressing into the seabed layer is improved.
Meanwhile, the device also comprises an auxiliary component, wherein the auxiliary component is arranged on the pressurizing component and comprises auxiliary plates 9 arranged on two sides of the transmitting electrode 3, and the two auxiliary plates 9 can reciprocate in the horizontal direction while the pressurizing component operates.
More specifically, by arranging the auxiliary components, the two auxiliary plates 9 are synchronously driven to reciprocate in the horizontal direction in the operation process of the pressurizing component, so that the area of the transmitting electrode 3, which is in contact with the seabed layer in the pressing process, is buried, and the embedding quality of the transmitting electrode 3 is higher.
Embodiment II, based on the above embodiment:
referring to fig. 3, 5 and 9, the following disclosure is made on the pressing member in the first embodiment, where the pressing member includes: the displacement board 10, the inner wall fixedly connected with two sliders 11 of pressurization case 4, the opposite side of two sliders 11 respectively with the both sides sliding connection of displacement board 10, the tip fixed connection of center pole 7 is on the top of displacement board 10, the bottom fixedly connected with first pressurization pole 12 of displacement board 10, the inner wall sliding connection of first pressurization pole 12 has second pressurization pole 13, the lever arm sliding connection of second pressurization pole 13 and the inner wall sliding connection of pressurization case 4, emitter electrode 3 fixed connection is at the tip of second pressurization pole 13.
More specifically, in the present embodiment: by moving the center rod 7 downward, the center rod 7 is displaced, and then by the displacement of the center rod 7, the displacement plate 10 slides downward along the surfaces of the two slide carriages 11, the first pressurizing rod 12 is pushed to displace downward by the downward sliding of the displacement plate 10, the second pressurizing rod 13 is pushed to displace downward by the downward displacement of the first pressurizing rod 12, the emitter electrode 3 is pushed to displace downward by the downward displacement of the second pressurizing rod 13, and the emitter electrode 3 is gradually drilled into the seabed layer, so that the embedding of the emitter electrode 3 can be completed.
Embodiment III, based on the above embodiment:
referring to fig. 3, 5, 6, 8 and 9, a stabilizing member in a first embodiment is disclosed as follows, where the stabilizing member includes: the first rack row 14 is fixedly connected to the surface of one sliding seat 11, the back surface of the displacement plate 10 is fixedly connected with a connecting plate 15, the inner wall of the connecting plate 15 is rotatably connected with a fixed shaft 16, a shaft arm of the fixed shaft 16 is fixedly connected with a gear 17, teeth of the gear 17 are meshed with teeth of the first rack row 14, the surface of the connecting plate 15 is slidably connected with a second rack row 18, and teeth of the second rack row 18 are meshed with teeth of the gear 17;
the bottom fixedly connected with firm pole 19 of rack row two 18, firm board 8 articulates in the bottom of firm pole 19, and the surface cover of firm board 8 is equipped with a cooperation section of thick bamboo 20, and the tip rotation of a cooperation section of thick bamboo 20 is connected at the lever arm of second forcing lever 13, links to each other through spring one 21 between cooperation section of thick bamboo 20 and the firm board 8.
More specifically, in this embodiment, in the downward displacement process of the displacement plate 10, the connecting plate 15 is synchronously driven to displace downward, the fixed shaft 16 is driven to displace downward by the downward displacement of the connecting plate 15, and the gear 17 is driven to displace downward by the downward displacement of the fixed shaft 16, at this time, due to the relative displacement between the gear 17 and the rack row one 14, the gear 17 rotates synchronously in the downward displacement process, and the rack row two 18 displaces downward faster than the gear 17 in the downward displacement process following the gear 17 by synchronous rotation in the downward displacement process of the gear 17;
the second rack bar 18 is rapidly displaced downwards, so that the stabilizing rod 19 is pushed to displace downwards, the stabilizing plate 8 can be synchronously pushed to displace through the downward displacement of the stabilizing rod 19, the stabilizing plate 8 is obliquely arranged, the first spring 21 is used for enabling the matching cylinder 20 to obliquely displace through the displacement of the stabilizing plate 8, the matching cylinder 20 is rotationally connected to the second pressurizing rod 13, the matching cylinder 20 cannot displace, only the connecting point of the matching cylinder 20 and the second pressurizing rod 13 is used for deflecting, the first spring 21 is compressed in the process, so that an obliquely downward force can be applied to the second pressurizing rod 13 through the matching of the matching cylinder 20 and the stabilizing plate 8, and the stability of the second pressurizing rod 13 can be increased through the additionally applied force through the arrangement of the two matching cylinders 20, namely the stability of the transmitting electrode 3 in the downward embedding process is increased.
It should be noted that when the hardness of the seabed layer is relatively low, the elastic force of the first spring 21 causes the deflection amplitude of the first matching cylinder 20 to be smaller, and the rapid downward movement of the second rack bar 18 causes the second pressurizing rod 13 to be pushed to move downwards more, that is, the second pressurizing rod 13 slides downwards along the inner wall of the first pressurizing rod 12, that is, the emitter electrode 3 is buried deeper and further away from the seabed layer;
when the hardness of the seabed layer is relatively high, the deflection amplitude of the matching cylinder 20 is relatively high through the elastic force of the first spring 21, namely the supporting force is applied to the second pressurizing rod 13 more in the process, and the second pressurizing rod 13 is kept stable, so that the transmitting electrode 3 can be automatically adjusted to the condition of the seabed layer in the embedding process, and the embedding effect of the transmitting electrode 3 is better.
Embodiment IV, based on the above embodiment:
referring to fig. 3, 4 and 5, the following disclosure is made on the auxiliary components in the first embodiment, and the auxiliary components include: the two fixed plates 22, the two fixed plates 22 are respectively fixedly connected on the surfaces of the two sliding seats 11, the surface of the displacement plate 10 is provided with a continuous groove 23, the groove wall of the continuous groove 23 is slidably connected with a main shaft 24, the inner walls of the two fixed plates 22 are slidably connected with an auxiliary rod 25, the inner wall of the auxiliary rod 25 is fixedly connected with the shaft arm of the main shaft 24, the two ends of the auxiliary rod 25 are fixedly connected with transmission rods 26, the two transmission rods 26 are slidably connected with the inner wall of the pressurizing box 4, and the end parts of the two transmission rods 26 are respectively fixedly connected with the surfaces of the two auxiliary plates 9.
More specifically, in the present embodiment, by synchronously displacing the continuous groove 23 downward during downward displacement of the displacement plate 10, the main shaft 24 slides along the groove wall of the continuous groove 23 by downward displacement of the continuous groove 23, and since the main shaft 24 is limited by the auxiliary rod 25 and the auxiliary rod 25 is limited by the two fixing plates 22, during downward displacement of the displacement plate 10, the main shaft 24 will reciprocate in the horizontal direction, and by reciprocating displacement of the main shaft 24 in the horizontal direction, the auxiliary rod 25 will reciprocate in the horizontal direction, and by reciprocating displacement of the auxiliary rod 25 in the horizontal direction, the transmission rods 26 at both ends will reciprocate in the horizontal direction;
through the reciprocating displacement of the two transmission rods 26 in the horizontal direction, the two auxiliary plates 9 can be made to reciprocate in the horizontal direction, and as the auxiliary plates 9 are always close to the surface of the seabed layer, in the downward displacement embedding process of the transmitting electrode 3, the seabed layer soil in the surrounding area of the transmitting electrode 3 is sunken, the seabed layer soil relatively far away from the transmitting electrode 3 is slightly raised, and through the reciprocating displacement of the two auxiliary plates 9 in the horizontal direction, the seabed layer soil can be made to fully wrap the side surface of the transmitting electrode 3, so that the embedding quality of the transmitting electrode 3 is further improved.
Fifth embodiment, based on the above embodiment:
referring to fig. 3, 5, 6 and 7, the following additions are made to the components in the first embodiment: and a locking part for improving the stability of the emitter electrode 3 and a driving part for driving the central rod 7 to displace.
More specifically, in this embodiment, the central rod 7 can be conveniently driven to displace by the arrangement of the driving component, and the stability of the emitter electrode 3 can be further improved by the arrangement of the locking component, so that the emitter electrode is not easy to move upwards after being buried.
Embodiment six, based on the above embodiment:
referring to fig. 5, 6 and 7, the following disclosure is made on a locking component in the fifth embodiment, where the locking component includes: the two discs 27 are fixedly connected to the end parts of the two fixed shafts 16 respectively, the surfaces of the two discs 27 are hinged to first hinging rods 28, the end parts of the first hinging rods 28 are hinged to second hinging rods 29, the surface of the connecting plate 15 is fixedly connected with a locking box 30, the inner wall of the locking box 30 is slidably connected with two sliding plates 31, the surfaces of the two sliding plates 31 are fixedly connected with the end parts of the second hinging rods 29 respectively, and two springs 32 are fixedly connected to opposite sides of the two sliding plates 31 together.
More specifically, in this embodiment, since the gear 17 moves down during rotation, the rotation of the gear 17 rotates the fixed shaft 16, the rotation of the fixed shaft 16 rotates the disc 27, the first hinge rod 28 displaces by selecting the disc 27, the second hinge rod 29 slides reciprocally along the inner wall of the locking box 30 by the displacement of the first hinge rod 28, the slide plate 31 slides reciprocally along the inner wall of the locking box 30 by the reciprocal displacement of the second hinge rod 29, and the spring second 32 continuously compresses and re-extends by the reciprocal sliding of the slide plate 31, so that after the embedding of the emitter electrode 3 is completed, when the emitter electrode 3 is desired to move up due to factors such as external force, the emitter electrode 3 moves up when the emitter electrode is removed from the embedding, i.e. when the displacement plate 10 moves up under non-active conditions, the device also needs to continuously compress and re-extend the spring second spring 32, i.e. overcomes the elastic stress of the spring second spring 32, so that the embedding state of the emitter electrode 3 can be locked by the spring second spring 32, and the embedding quality can be further improved.
Embodiment seven, based on the above embodiment:
referring to fig. 3 and 5, the following disclosure is made on a driving component in the first embodiment, where the driving component includes: the electric push rod 33, the electric push rod 33 is fixedly connected to the inner wall of the pressurizing box 4, and the push rod head of the electric push rod 33 is fixedly connected with the end part of the center rod 7.
More specifically, in the present embodiment, by activating the electric push rod 33, the displacement of the center rod 7 in the vertical direction can be made convenient by the electric push rod 33.
Embodiment eight, based on the above embodiment:
referring to fig. 3, the following additions are made to the components in the first embodiment: the size of the gear 17 is matched with the sizes of the first rack row 14 and the second rack row 18, and the two stabilizing components are symmetrically arranged left and right.
More specifically, in the present embodiment, the size of the gear 17 is adapted to the sizes of the first rack gear 14 and the second rack gear 18, so that the transmission process from the first rack gear 14 to the gear 17 and from the gear 17 to the second rack gear 18 can be smoothly performed.
Working principle: when the measurement while drilling system for engineering geological drilling is used, a worker firstly sends an instruction to the transmitting electrode 3 and the signal receiving device 5, and then controls a measuring instrument preset in the drill rod 2 to start by collecting potential differences at two ends of the signal receiving device 5, so that a measuring procedure can be completed;
when the transmitting electrode 3 is placed, in order to reduce the influence of a sea water layer, the transmitting electrode 3 can be moved downwards until the transmitting electrode is embedded in the sea floor layer by starting the electric push rod 33;
in the process of downward movement of the emitter electrode 3, the matched cylinder 20 is synchronously deflected, so that the emitter electrode 3 is buried deeper and farther away from the sea floor when the hardness of the sea floor is relatively low, and the second pressurizing rod 13 is kept stable by applying more supporting force to the second pressurizing rod 13 when the hardness of the sea floor is relatively high;
when the transmitting electrode 3 moves downwards, the two auxiliary plates 9 move back and forth in the horizontal direction, so that the side surface of the transmitting electrode 3 can be fully wrapped by the soil of the seabed layer, and the embedding quality of the transmitting electrode 3 is further improved;
by arranging the second spring 32, the embedded state of the emitter electrode 3 can be locked, and the embedded quality is further improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a measurement while drilling system for engineering geological drilling, includes drill bit (1) and drilling rod (2), still includes emitter electrode (3) and pressurization case (4), its characterized in that: a signal receiving device (5) is arranged in the drill rod (2), the transmitting electrode (3) is arranged below the pressurizing box (4), and the transmitting electrode (3) is electrically connected with a signal transmitting device on the ground through an insulating cable (6);
the device also comprises a pressurizing component, wherein the pressurizing component is arranged in the pressurizing box (4) and comprises a center rod (7), and the transmitting electrode (3) is downwards displaced through the arrangement of the pressurizing component;
the device also comprises two stabilizing components and an auxiliary component, wherein the two stabilizing components are connected to the pressurizing component in a transmission way, and comprise a stabilizing plate (8), and the stabilizing plate (8) deflects while downwards displacing through the arrangement of the stabilizing components;
the auxiliary component is arranged on the pressurizing component and comprises auxiliary plates (9) arranged on two sides of the emitting electrode (3), and the two auxiliary plates (9) can reciprocate in the horizontal direction while the pressurizing component operates;
the pressurizing member includes:
the device comprises a displacement plate (10), wherein two sliding seats (11) are fixedly connected to the inner wall of a pressurizing box (4), opposite sides of the two sliding seats (11) are respectively connected with two sides of the displacement plate (10) in a sliding mode, the end portion of a center rod (7) is fixedly connected to the top end of the displacement plate (10), a first pressurizing rod (12) is fixedly connected to the bottom end of the displacement plate (10), a second pressurizing rod (13) is fixedly connected to the inner wall of the first pressurizing rod (12) in a sliding mode, a lever arm of the second pressurizing rod (13) is connected with the inner wall of the pressurizing box (4) in a sliding mode, and a transmitting electrode (3) is fixedly connected to the end portion of the second pressurizing rod (13);
the stabilizing member comprises:
the first rack row (14), the first rack row (14) is fixedly connected to the surface of one sliding seat (11), a connecting plate (15) is fixedly connected to the back of the displacement plate (10), a fixed shaft (16) is rotationally connected to the inner wall of the connecting plate (15), a gear (17) is fixedly connected to an axle arm of the fixed shaft (16), teeth of the gear (17) are meshed with teeth of the first rack row (14), a second rack row (18) is slidingly connected to the surface of the connecting plate (15), and teeth of the second rack row (18) are meshed with teeth of the gear (17);
the bottom end of the rack row II (18) is fixedly connected with a stabilizing rod (19), the stabilizing plate (8) is hinged to the bottom end of the stabilizing rod (19), a matching cylinder (20) is sleeved on the surface of the stabilizing plate (8), the end part of the matching cylinder (20) is rotatably connected with a lever arm of the second pressurizing rod (13), and the matching cylinder (20) is connected with the stabilizing plate (8) through a first spring (21);
the auxiliary member includes:
the two fixing plates (22), the two fixing plates (22) are respectively and fixedly connected to the surfaces of the two sliding seats (11), a continuous groove (23) is formed in the surface of the displacement plate (10), a main shaft (24) is slidably connected to the groove wall of the continuous groove (23), an auxiliary rod (25) is slidably connected to the inner walls of the two fixing plates (22), the inner walls of the auxiliary rod (25) are fixedly connected with the shaft arm of the main shaft (24), transmission rods (26) are fixedly connected to the two ends of the auxiliary rod (25), the two transmission rods (26) are slidably connected with the inner walls of the pressurizing box (4), and the end parts of the two transmission rods (26) are respectively and fixedly connected with the surfaces of the two auxiliary plates (9);
the device also comprises a driving component for driving the central rod (7) to displace;
the center rod (7) is moved downwards, so that the center rod (7) is displaced, the displacement plate (10) slides downwards along the surfaces of the two sliding seats (11) through the displacement of the center rod (7), the continuous groove (23) is synchronously displaced downwards in the downward displacement process of the displacement plate (10), the main shaft (24) slides along the groove wall of the continuous groove (23) through the downward displacement of the continuous groove (23), and the main shaft (24) is limited by the auxiliary rod (25), and the auxiliary rod (25) is limited by the two fixing plates (22), so that the main shaft (24) is subjected to reciprocating displacement in the horizontal direction in the downward displacement process of the displacement plate (10), the auxiliary rod (25) can be subjected to reciprocating displacement in the horizontal direction through the reciprocating displacement of the main shaft (24) in the horizontal direction, and the transmission rods (26) at two ends can be subjected to reciprocating displacement in the horizontal direction through the reciprocating displacement of the auxiliary rod (25) in the horizontal direction;
the two auxiliary plates (9) can be made to reciprocate in the horizontal direction through the reciprocating displacement of the two transmission rods (26), and the submarine layer soil in the surrounding area of the transmitting electrode (3) is sunk in the downward displacement embedding process of the transmitting electrode (3) because the auxiliary plates (9) are always close to the surface of the submarine layer, and the submarine layer soil relatively far away from the transmitting electrode (3) is slightly raised, and the side surface of the transmitting electrode (3) can be fully wrapped by the submarine layer soil through the reciprocating displacement of the two auxiliary plates (9) in the horizontal direction, so that the embedding quality of the transmitting electrode (3) is improved.
2. The measurement while drilling system for engineering geological drilling of claim 1, wherein: also comprises a locking component for improving the stability of the transmitting electrode (3).
3. The measurement while drilling system for engineering geological drilling of claim 2, wherein: the locking part comprises two discs (27), and the two discs (27) are fixedly connected to the ends of the two fixed shafts (16) respectively.
4. A measurement while drilling system for engineering geological drilling according to claim 3, wherein: the surfaces of the two discs (27) are hinged with first hinging rods (28), and the end parts of the first hinging rods (28) are hinged with second hinging rods (29).
5. The measurement while drilling system for engineering geological drilling of claim 4, wherein: the surface fixedly connected with locking case (30) of connecting plate (15), the inner wall sliding connection of locking case (30) has two slide (31), two the surface of slide (31) respectively with two articulated rod two (29) tip fixed connection, two the opposite side of slide (31) is fixedly connected with two spring two (32) jointly.
6. The measurement while drilling system for engineering geological drilling of claim 5, wherein: the driving part includes: the electric push rod (33), electric push rod (33) fixed connection is in the inner wall of pressurization case (4), the push rod head of electric push rod (33) with the tip fixed connection of center pole (7).
7. The measurement while drilling system for engineering geological drilling of claim 1, wherein: the size of the gear (17) is matched with the sizes of the first rack row (14) and the second rack row (18), and the two stabilizing components are arranged in a bilateral symmetry mode.
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