WO2024255073A1 - Dispositif de trépanation conique appliqué à une tige de sonde de pénétration de fond marin en mer profonde et procédé d'utilisation - Google Patents

Dispositif de trépanation conique appliqué à une tige de sonde de pénétration de fond marin en mer profonde et procédé d'utilisation Download PDF

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Publication number
WO2024255073A1
WO2024255073A1 PCT/CN2023/127935 CN2023127935W WO2024255073A1 WO 2024255073 A1 WO2024255073 A1 WO 2024255073A1 CN 2023127935 W CN2023127935 W CN 2023127935W WO 2024255073 A1 WO2024255073 A1 WO 2024255073A1
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WO
WIPO (PCT)
Prior art keywords
opening device
conical hole
sensor unit
conical
unit structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/127935
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English (en)
Chinese (zh)
Inventor
梁前勇
吴学敏
王智刚
袁庆盟
吴晓钰
董一飞
夏林琪
郭斌斌
张伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Marine Geological Survey
Original Assignee
Guangzhou Marine Geological Survey
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Marine Geological Survey filed Critical Guangzhou Marine Geological Survey
Priority to JP2024532257A priority Critical patent/JP2025529610A/ja
Publication of WO2024255073A1 publication Critical patent/WO2024255073A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00—Testing foundations or foundation structures
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/10—Miscellaneous comprising sensor means

Definitions

  • the present application relates to the technical field of seabed sediment monitoring equipment, and in particular to a conical hole opening device used for a deep-sea seabed penetration probe and a method of using the device.
  • the penetration means and long-term monitoring methods for in-situ multi-parameter measurement sensors of seabed sediments mainly include: first, pre-drilling at designated locations and burying monitoring instruments in the pre-drilled holes. This requires large ships, drilling systems, and underwater placement equipment, which are difficult to operate, costly, time-consuming, and have a low cost-performance ratio; second, using gravity-type penetration equipment, relying on the equipment's own gravity to penetrate into a certain stratum depth, generally for point monitoring, and the penetration depth is uncertain depending on the geological conditions; third, using hydraulic transmission to penetrate the equipment's own monitoring sensors into the seabed. The entire set of monitoring equipment and the penetration device need to stay on the seabed for a long time, which brings difficulties to the subsequent recovery of the device.
  • the existing seabed sediment monitoring equipment has a penetration section where the drill pipe and the sensor are connected in parallel to form a probe that can penetrate the seabed sediment.
  • the probe is inserted into the seabed sediment using gravity or the hydraulic power structure of the penetration end itself, and the sensor can be driven into the sediment at the same time.
  • an obvious drawback of this method is that once the mechanical probe is recovered after the penetration, the sensor will also be taken out of the sediment, and it is impossible to ensure that the sensor unit can perform long-term monitoring in situ in the sediment.
  • the purpose of this application is to overcome the shortcomings of the above-mentioned prior art and provide a conical hole opening device and a method of use for deep seabed penetration probes.
  • a conical hole-opening device for deep-sea seabed penetration probe comprising a drill rod, a sleeve, a conical hole-opening device and a sensor unit structure;
  • the sleeve is connected in parallel with the conical hole-opening device through a connecting plate;
  • the diameter of the lower end of the drill rod is smaller than the diameter of its upper end, and the connection between the upper end and the lower end is a diameter-changing position, and the drill rod is detachably inserted into the sleeve;
  • the conical hole-opening device is provided with a resistance bracket and a numerical control module located inside the device, the numerical control module is communicatively connected with the operator's controller, the numerical control module is signal-connected with the resistance bracket and controls the extension or retraction of the resistance bracket;
  • the sensor unit structure is installed on the conical hole-opening device; when the drill rod penetrates, the drill rod passes downward into the sleeve and is stuck in the s
  • the conical hole-opening device can realize parallel connection of the drill pipe and the sensor unit structure through mechanical structure coupling.
  • the lower end of the drill pipe is thin and the upper end is thick.
  • the drill pipe and the conical hole-opening device can be penetrated synchronously, and at the same time, it can ensure that the drill pipe contacts the seabed mud surface before the sensor unit structure.
  • the bottom end of the drill rod is a conical structure
  • the bottom end of the conical hole opening device is a conical structure.
  • the bottom ends of the drill rod and the conical hole opening device both adopt conical structures, which can effectively drill the soft sediments on the seabed surface.
  • the conical hole opening device is provided with an installation slot, and the resistance bracket is installed in the installation slot and can be rotatably extended outward to form an inverted umbrella-shaped structure.
  • the inverted umbrella-shaped resistance bracket can increase the resistance with the seabed sediment and prevent the displacement of the sensor unit structure when the drill rod is recovered.
  • the resistance bracket is a plurality of paddle blades, and the paddle blades are hinged in the mounting grooves.
  • the numerical control module controls the paddle blades to rotate and stretch and open or to retract and store in the mounting grooves.
  • the paddles are provided with three pieces, and the mounting grooves are provided with three pieces correspondingly, and the three mounting grooves are evenly distributed around the outer periphery of the conical hole opening device.
  • the paddles and mounting grooves are evenly distributed, so that the force is evenly applied, which is conducive to increasing the friction with the sediment.
  • the resistance bracket is a rigid structure.
  • the sensor unit structure is a flexible sensor chain, the lower end of which is mounted on the conical hole opening device, and the upper end is connected to a float.
  • the sensor unit structure adopts a flexible sensor chain to prevent the conical hole opening device and the sensor unit structure from disappearing together, and cooperates with the float to make It is beneficial to the later recovery work, so as to achieve the purpose of data recovery.
  • a method for using a conical hole opening device for a deep-sea seabed penetration probe comprises the following steps:
  • Step 1 Insert the drill pipe into the sleeve, the diameter change position of the drill pipe is stuck in the sleeve, and the sensor unit structure and the drill pipe are released to penetrate the seabed;
  • Step 2 Under the action of the conical hole opening device, the drill pipe and the sensor unit structure are synchronously penetrated into the seabed sediment, and the drill pipe contacts the seabed mud surface before the sensor unit structure;
  • Step 3 The operator operates the controller to send a command, and the numerical control module releases the resistance bracket after receiving the signal.
  • the resistance bracket is distributed in an umbrella shape, and the drill pipe is separated from the sleeve and recovered to the survey ship.
  • the sensor unit structure and the conical opening device remain on the seabed;
  • Step 4 Release the sensor unit structure to make it in a relaxed and powerless state, the survey ship starts the monitoring mode, and the CNC module performs long-term data collection and storage operations;
  • Step 5 The recovered drill pipe can be used to continue other drilling operations
  • Step 6 An underwater grabber or float is installed on the top of the sensor unit structure. After completing the monitoring cycle, the operator remotely controls the unmanned submersible to grab the underwater grabber or float to recover the sensor unit structure and the conical opening device.
  • the present device solves the key technology that the sensor unit can be effectively separated from the mechanical drill rod during the drill rod recovery stage after the seabed sediment drill rod penetration operation is completed; the technology will greatly improve the working efficiency of the seabed shallow stratum penetration monitoring work means, realize the working mode of matching one set of drill rods with multiple sets of sensor units, and the technology of automatic separation of the drill rod and the sensor unit structure also improves the utilization rate of the penetration section equipment and the drill rod; the present device can meet the function of effectively separating the drill rod and the sensor unit structure used for penetration during the seabed sediment monitoring process, avoiding the problem that in the existing probe rod mode in which the drill rod and the detection unit are integrated, long-term monitoring cannot be performed after the probe rod is recovered, thereby improving the utilization efficiency of the drill rod in the penetration device.
  • FIG1 is a front view of an embodiment of the present application in a penetration state
  • FIG2 is a top view of the embodiment of the present application in a penetration state
  • Fig. 3 is a cross-sectional view along the line A-A in Fig. 2;
  • FIG4 is a perspective view of an embodiment of the present application in a penetration state
  • FIG5 is a perspective view of the embodiment of the present application in the other side of the penetration state
  • FIG6 is a front view of the drill pipe in the embodiment of the present application in a recovered state
  • FIG7 is a top view of the drill pipe in the recovered state according to the embodiment of the present application.
  • Fig. 8 is a cross-sectional view along the line B-B in Fig. 7;
  • FIG9 is a side view of the drill pipe in the recovered state according to the embodiment of the present application.
  • FIG10 is a perspective view of a drill pipe in a recovered state according to an embodiment of the present application.
  • FIG. 11 is a three-dimensional view of the drill rod in the other side of the embodiment of the present application in a recovered state.
  • 1-drill rod 2-sleeve; 3-conical hole opening device; 4-sensor unit structure; 5-connecting plate; 6-resistance bracket; 7-installation slot.
  • a conical hole-opening device for deep-sea seabed penetration probe comprising a drill rod 1, a sleeve 2, a conical hole-opening device 3 and a sensor unit structure 4;
  • the sleeve 2 is connected in parallel with the conical hole-opening device 3 through a connecting plate 5;
  • the diameter of the lower end of the drill rod 1 is smaller than the diameter of its upper end, and the connection between the upper end and the lower end is a variable diameter position, and the drill rod 1 is detachably inserted into the sleeve 2;
  • the conical hole-opening device 3 is provided with a resistance bracket 6 and a numerical control module located inside the device, the numerical control module is connected to the operator's controller for communication, and the numerical control module is connected to the resistance bracket 6 signal and controls the resistance bracket 6 to extend or retract;
  • the sensor unit structure 4 is installed on the conical hole-opening device 3; when the drill rod 1 penetrates, The drill pipe 1 passes downward through
  • the conical hole-opening device 3 can realize parallel connection between the drill pipe 1 and the sensor unit structure 4 through mechanical structure coupling.
  • the drill pipe 1 has a thin lower end and a thick upper end. When the drill pipe 1 penetrates, it can automatically unidirectionally clamp the sleeve 2 during the process of entering the sleeve 2; the drill pipe 1 and the conical hole-opening device 3 are penetrated synchronously, and at the same time, it can ensure that the drill pipe 1 contacts the seabed mud surface before the sensor unit structure 4.
  • the bottom end of the drill rod 1 is a conical structure
  • the bottom end of the conical hole opening device 3 is a conical structure.
  • the bottom ends of the drill rod 1 and the conical hole opening device 3 are both conical structures, which can effectively drill the soft sediments on the seabed surface, which is beneficial to reducing the resistance during the penetration process of the entire equipment.
  • the conical hole opening device 3 is provided with a mounting groove 7, and the resistance bracket 6 is installed in the mounting groove 7 and can be rotatably extended to the outside to form an inverted umbrella-like structure.
  • the operator of the survey ship issues a command to recover the drill pipe 1 at the deck end, and the conical hole opening device 3 releases the resistance bracket 6.
  • the resistance bracket 6 of the inverted umbrella-like structure can increase the resistance with the seabed sediment, and when the drill pipe 1 is recovered upward, it can prevent the displacement of the sensor unit structure 4 caused by the recovery of the drill pipe 1.
  • the resistance bracket 6 is a plurality of paddles, which are hinged in the mounting grooves 7 .
  • the numerical control module controls the paddles to rotate and stretch or to be retracted and stored in the mounting grooves 7 .
  • the blades and mounting grooves 7 are evenly distributed, so that the force is evenly applied, which is conducive to increasing the friction with the sediment.
  • the resistance bracket 6 is a rigid structure.
  • the sensor unit structure 4 is a flexible sensor chain, the lower end of which is mounted on the conical hole-opening device 3, and the upper end of which is connected to an underwater gripper or a float.
  • the sensor unit structure 4 adopts a flexible sensor chain to prevent the conical hole-opening device 3 and the sensor unit structure 4 from disappearing together.
  • the use of the flexible sensor chain together with the float is conducive to the later recovery work, thereby achieving the purpose of recovering data.
  • the underwater gripper or float is not shown in the accompanying drawings.
  • the sensor unit structure 4 can adopt the following sensors: soil strength sensor, temperature sensor, sediment pore pressure sensor, resistivity sensor, tilt sensor, and the sensor unit structure 4 can be an independent individual or a collection of multiple sensors.
  • a method for using a conical hole opening device 3 for a deep seabed penetration probe comprising: Next steps:
  • Step 1 insert the drill pipe 1 into the sleeve 2, the diameter-changing position of the drill pipe 1 is stuck in the sleeve 2, and the sensor unit structure 4 and the drill pipe 1 are released to penetrate into the seabed;
  • Step 2 Under the action of the conical hole opening device 3, the drill rod 1 and the sensor unit structure 4 are simultaneously penetrated into the seabed sediment, and the drill rod 1 contacts the seabed mud surface before the sensor unit structure 4;
  • Step 3 The operator operates the controller to send a command, and the numerical control module releases the resistance bracket 6 after receiving the signal.
  • the resistance bracket 6 is distributed in an umbrella shape, and the drill pipe 1 is separated from the sleeve 2 and recovered to the survey ship.
  • the sensor unit structure 4 and the conical hole opening device 3 remain on the seabed;
  • Step 4 Release the sensor unit structure 4 to put it in a relaxed and powerless state, the survey ship starts the monitoring mode, and the numerical control module performs long-term data collection and storage operations;
  • Step 5 The recovered drill rod 1 can continue to carry out other drilling operations
  • Step 6 An underwater gripper or a float is installed on the top of the sensor unit structure 4. After completing the monitoring cycle, the operator remotely controls the unmanned submersible to grab the underwater gripper or the float to recover the sensor unit structure 4 and the conical opening device 3.
  • the numerical control module releases a command, and the conical hole opening device 3 opens the originally closed resistance bracket 6.
  • the resistance bracket 6 of the rigid structure can increase the friction between the device and the soil in the open and closed state, so that the entire drill rod 1 will not bring back the sensor unit structure 4 with the conical hole opening device 3 during the recovery process. Due to the structural characteristics of the drill rod 1 being thick at the upper end and thin at the lower end, it can pass directly through the casing during the recovery process.
  • the recovery of the drill rod 1 will not affect the position of the conical hole opening device 3 and its attached sensor unit structure 4 in the sediment, effectively ensuring that the sensor unit structure 4 can carry out long-term in-situ monitoring, and the recovered drill rod 1 can continue to carry out other drilling operations.
  • the drill rod 1 When the drill rod 1 is recovered, it may drive the casing upward a little, but due to the resistance of the resistance bracket 6, the error of the casing movement can be compensated, so that the position of the sensor unit structure 4 will not change.
  • the flexible sensor chain is then inserted into the seabed sediment. After the drill rod 1 is recovered, the flexible sensor chain is released to make it in a relaxed tension-free state. After the drill rod 1 is recovered, the flexible sensor chain stays on the seabed and starts the monitoring mode to perform long-term data collection and storage. After the detection cycle is completed, the remote-controlled unmanned submersible recovers the conical hole opening device 3, the flexible sensor chain and the floating ball.
  • a data acquisition storage unit can be installed in the floating ball, so that even if the flexible sensor chain cannot be recovered, the emergency recovery of the floating ball can be completed, thereby achieving the purpose of recovering data.
  • the numerical control module uses a processor, which can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.
  • the processor is the control center of the device, and various interfaces and lines are used to connect various parts.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

La présente demande concerne un dispositif de trépanation conique appliqué à une tige de sonde de pénétration de fond marin en mer profonde et un procédé d'utilisation. Le dispositif comprend une tige de forage, un manchon, un dispositif de trépanation conique et une structure d'unité de capteur, le manchon étant relié au dispositif de trépanation conique en parallèle au moyen d'une plaque de liaison ; le diamètre de l'extrémité inférieure de la tige de forage est inférieur au diamètre de l'extrémité supérieure de la tige de forage, la liaison entre l'extrémité supérieure et l'extrémité inférieure est une position de diamètre variable, et la tige de forage passe de manière amovible à travers le manchon ; le dispositif de trépanation conique est pourvu d'un support de résistance et d'un module de commande numérique situé dans le dispositif ; le module de commande numérique est en liaison de communication avec un dispositif de commande d'un opérateur, et est en liaison de signalisation avec le support de résistance et commande le support de résistance pour s'étendre ou se rétracter ; et la structure d'unité de capteur est montée sur le dispositif de trépanation conique. Le dispositif peut satisfaire la fonction de séparation efficace d'une tige de forage pour une pénétration pendant une surveillance de sédiments de fond marin à partir d'une structure d'unité de capteur, ce qui permet d'éviter le problème d'incapacité à effectuer une surveillance à long terme après qu'une tige de sonde est récupérée dans un mode de tige de sonde où la tige de forage et une unité de détection sont intégrées, et d'améliorer ainsi l'efficacité d'utilisation de la tige de forage dans un dispositif de pénétration.
PCT/CN2023/127935 2023-06-14 2023-10-30 Dispositif de trépanation conique appliqué à une tige de sonde de pénétration de fond marin en mer profonde et procédé d'utilisation Ceased WO2024255073A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024532257A JP2025529610A (ja) 2023-06-14 2023-10-30 深海底貫入探査棒に適用される錐状穴掘り装置及び使用方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310705553.6 2023-06-14
CN202310705553.6A CN116950028B (zh) 2023-06-14 2023-06-14 一种应用于深海海底贯入探杆的锥形开孔装置及使用方法

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JP (1) JP2025529610A (fr)
CN (1) CN116950028B (fr)
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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN116950028B (zh) * 2023-06-14 2025-08-19 广州海洋地质调查局 一种应用于深海海底贯入探杆的锥形开孔装置及使用方法

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CN102331275A (zh) * 2011-06-10 2012-01-25 中国海洋大学 基于贯入式探针的深海多要素综合观测系统
JP2015072178A (ja) * 2013-10-02 2015-04-16 清水建設株式会社 水底地盤貫入深度計測装置
WO2016166477A1 (fr) * 2015-04-15 2016-10-20 Institut Francais De Recherche Pour L'exploitation De La Mer - Ifremer Procédé de détermination de la pression interstitielle dans le sediment marin et dispositif correspondant
CN108387713A (zh) * 2018-02-27 2018-08-10 国家海洋局北海海洋工程勘察研究院 一种海底沉积物测试装置、贯入系统与贯入方法
CN111042098A (zh) * 2019-12-31 2020-04-21 广州道彰工程科技有限公司 一种海上静力触探方法及装置
WO2021170415A1 (fr) * 2020-02-24 2021-09-02 Bauer Maschinen Gmbh Appareil et procédé d'essai au pénétromètre conique
CN115162313A (zh) * 2022-07-01 2022-10-11 中国海洋大学 一种海底动力触探装置及其工作方法
CN116950028A (zh) * 2023-06-14 2023-10-27 广州海洋地质调查局 一种应用于深海海底贯入探杆的锥形开孔装置及使用方法

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CN116950028B (zh) 2025-08-19
CN116950028A (zh) 2023-10-27

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