EP3690185B1 - Procédé de détermination de l'usure d'une tige d'un dispositif de forage du sol - Google Patents

Procédé de détermination de l'usure d'une tige d'un dispositif de forage du sol Download PDF

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Publication number
EP3690185B1
EP3690185B1 EP20165948.9A EP20165948A EP3690185B1 EP 3690185 B1 EP3690185 B1 EP 3690185B1 EP 20165948 A EP20165948 A EP 20165948A EP 3690185 B1 EP3690185 B1 EP 3690185B1
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EP
European Patent Office
Prior art keywords
rod
section
load
sections
individual
Prior art date
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EP20165948.9A
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German (de)
English (en)
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EP3690185A1 (fr
Inventor
Sebastian Fischer
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Tracto Technik GmbH and Co KG
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Tracto Technik GmbH and Co KG
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Publication of EP3690185A1 publication Critical patent/EP3690185A1/fr
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    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/007—Measuring stresses in a pipe string or casing
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments

Definitions

  • the invention relates to a method for determining wear on a rod of an earth boring device and to an earth boring device with a rod section.
  • the invention also relates to a use in an earth boring device for determining wear on a rod of the earth boring device.
  • Earth boring devices usually comprise a drive device and a linkage connected to it, to which a drill head, which can be designed as a tool, can be attached.
  • the drill head can be an expander head or a pipe retraction adapter.
  • the drive forces of the drive device are transmitted to the drill head via the rod, whereby it is propelled into the ground.
  • compressive forces are usually applied to the drill head, so that it is moved through the earth in a pushing manner.
  • the term "making an earth borehole" by means of the earth drilling device also includes a transmission of tensile forces to the rods and the drill head.
  • the rods of an earth boring device consist of a plurality of rod sections connected to one another, which are successively connected to one another (in pushing operation) or detached from one another (in pulling operation) according to the advance of the drill head in the ground.
  • a connection between the rod sections can be made, for example, via screw connections or plug-in couplings. Mixed connections from screw connections and plug-in couplings are possible.
  • linear drives When transferring drive forces to the drill head by means of the rod, linear drives are used almost exclusively, which transfer the drive forces or drive movements step by step to the rod, i.e. with a load stroke, in which the rod is connected to the linear drive, and an idle stroke, in which the connection between the linear drive and the linkage is released.
  • Usual linear drives for earth boring devices work with hydraulic cylinders as the drive source, which means that high forces can be applied with comparatively compact dimensions.
  • linear drives with rack and pinion drives are also known.
  • DE 11 2013 007 353 T5 discloses a well drilling optimization collar that has integrated fiber optic sensors to collect information about drilling conditions.
  • the DE 11 2013 007 353 T5 states that, in addition to measuring and surveying information properties in a wellbore, it may also be desirable to collect information about the conditions of a tool in a drill string.
  • a drill optimization collar could be included in a drill string to capture real-time measurements of weight, torque, and bending moment occurring on or near the drill bit. Such measurements could help optimize drilling parameters to maximize performance and minimize wasted energy transfer and vibrations while drilling.
  • a drilling optimization collar can contain multiple sensors to provide values for weight, torque and bending moment, and can also contain a vibration sensor that can produce and provide a whole series of vibration measurements relating to vibrations occurring in the drill pipe or localized vibration measurements that would occur at certain sensor positions.
  • the invention was based on the object of increasing the operational reliability of an earth drilling device and / or improving the service life calculations of a rod assembly of an earth drilling device.
  • the essence of the invention provides for the detection of bending loads on the rods in order to improve a service life calculation and / or to increase the operational safety of an earth drilling device, the load in particular not being determinable on the drive device, but in the earth borehole itself by determining the course of the earth borehole , in particular a curved area of the earth bore, can be detected.
  • a method for determining wear on a rod of an earth boring device therefore provides that a bending load on the rod is detected in order to carry out a service life calculation.
  • a load is also determined essentially in addition to the drive device and a load is determined in the earth borehole itself.
  • the load can be recorded within the earth borehole and taken into account for the service life calculation.
  • the prevailing view that the rod sections are exclusively exposed to the load from the drive device or that only the load on the drive device is determined has been supplemented according to the invention.
  • rods does not exclusively include rigid rods having individual rod sections connected directly or indirectly to one another, but in particular all force transmission elements that can be used in an earth boring device.
  • linkage should not only be understood to mean the force transmission element which is arranged between the drive device of the earth boring device and the drill head, but basically all components of a drill string, ie all components moved in the ground, of such an earth boring device that are subject to a load are exposed to forces and / or moments applied by the drive device.
  • the umbrella term “rods” can also be understood to mean the drill head as part of the drill string.
  • the term “drive device” includes a drive by means of which the drive forces or drive movements are transmitted to the rod or the drill string.
  • the drive device can be designed as a linear drive.
  • the drive device can also be designed as a rack and pinion drive.
  • the drive device can have hydraulic cylinders as a drive source.
  • the bending load on the linkage is measured by means of a linkage section on which there is at least one strain sensor. It was recognized that a detection of the load is required independently of the drive device of the auger, but this load does not necessarily have to be carried out by means of a measurement process on each rod section or a rod section, but rather on one or more rod sections that are located in the drill string or section. Rods are arranged, and which can be assigned to the rod sections.
  • machine data of the drive device can be used from which at least one additional piece of information can be derived from the following machine data in order to perform the service life calculation: torsion, tensile load, thrust load and speed.
  • the torsional load, tensile / compressive load and / or speed of the individual rod sections can then be determined from the machine data of the drive device.
  • the bending load is detected by means of a strain gauge, a fiber Bragg grating sensor or the like. This makes it possible to use robust and proven sensors or detection elements that can also be used under the harsh conditions in the ground.
  • the service life calculation is assigned to individual rod sections of the rod. This makes it possible not only to make a general statement about the rod sections of the rod located in the ground, but also to specify the load for each individual rod section. It can be taken into account how long and at what position the rod section is located in the rod. With regard to the bending load, it can thus be taken into account which rod section was exposed to a bending load or whether, for example, a rod section has not (yet) passed through a curved area of the earth borehole. Depending on the position of the rod section in the rod, the bending load can thus be taken into account.
  • the method described is therefore particularly suitable for determining the wear and tear on a linkage which comprises a plurality of linkage sections connected to one another.
  • the individual loads on individual or all of the rod sections are preferably measured and individual service life calculations are carried out for this purpose. This in turn can considerably increase the accuracy of the service life calculations carried out. This is due in particular to the fact that in the event of a load, i.e. when carrying out a completed work project (e.g. an earth drilling, a bursting process or a pipe pulling process), the individual rod sections differ depending on the point in time at which they are integrated into the rod be burdened for a long time.
  • a completed work project e.g. an earth drilling, a bursting process or a pipe pulling process
  • the individual rod sections are also used in a large number of work processes, whereby it is generally not possible to track which rod section was used in which work project and how long it was loaded. Due to the inventive preferred individual measuring or taking into account the load on the individual rod sections and This is now possible with a corresponding evaluation.
  • the values for the individual rod sections are preferably stored separately, this particularly preferably being able to take place in a storage element that is connected to the respective rod section itself.
  • memory element in the context of the invention relates to any data memory or a storage medium which can in particular be written to and / or read out electronically.
  • the memory element can store information based on electronic semiconductor components or other components.
  • the memory element can in particular be a non-volatile memory. Contactless reading out and / or writing of data to the memory element is preferred.
  • a memory element can preferably be an RFID chip, which usually has an antenna, an analog circuit as well as a digital circuit and a permanent memory.
  • the RFID chip can be a passive, active or semi-active RFID chip.
  • the transmission of the measured load or the individual service life calculations of a load case can preferably be from the drive device (a device or device integrated in the drive device) or from a device adjacent to the drive device (an additional device that, for example, performs at least (partial) tasks of service life calculation or (partial) tasks to be carried out in this connection can carry out steps that enable (for example, as a module to be purchased) to be transferred to the individual storage elements.
  • This can take place particularly preferably when the respective linkage section is located in the drive device for incorporation in or for removal from the linkage.
  • a transmission device can preferably be provided on the device side (integrated on or in the drive device or separately from this), which is used to transmit the measured loads and / or the results of the service life calculations to the storage elements of the rod sections.
  • the transmission device is preferably arranged on the drive device or integrated in or on it.
  • the transmission facility can also be added separately to the drive device, for example the drive device can be supplemented or upgraded with the option of calculating the service life.
  • the transmission of the measured load or the individual lifetime calculations of a load case can take place in the case of a rod under tension, which comprises a plurality of rod sections connected to one another, if the rod is pulled step by step by the drive device through a hole in the ground, the individual rod sections can be pulled out of the earth borehole one after the other and detached from the rest of the rod by transferring the loads or the results of the service life calculations to the storage element of the rod section to be loosened shortly before, during the loosening of this rod section or shortly afterwards, in particular, as long as it is still in the area of the drive device.
  • the loads to which the individual rod sections were exposed in previous load cases when performing the service life calculation provision can also be made for the loads stored on the storage elements of the individual rod sections or the results of the service life calculation to be initially transferred to the drive device or a external device (module), then in the drive device or the external device (module) with the loads (for example the number of drive shafts with the respective force values and / or the bending load) or the life cycle calculation of the last load case to update and the updated To save values again on the storage elements.
  • the loads for example the number of drive shafts with the respective force values and / or the bending load
  • the invention also provides an earth boring apparatus having a rod section.
  • the rod section is designed for measuring bends and a data connection can be established between the rod section and a receiving device of the earth boring device.
  • a bending load that acts on the rod or the individual rod sections can be determined.
  • the rod section follows the course of the rod to create the earth borehole and can thus indicate which bend the individual rod sections are subjected to as they move through the earth borehole.
  • the bending is actually measured by means of the rod section arranged in the rod.
  • the rod section can preferably be arranged in the front region of the rod, behind the drill head, ie, directly following the drill head. But there can also be intermediate sections between the drill head and the rod section be provided. An arrangement of the rod section in the front area is desirable so that it can be detected by means of the rod section how the borehole extends, ie which bends are also present in the front area of the borehole.
  • the "receiving device” in the sense of the description is a device which can receive a signal for a bending or expansion from the rod section, which can be a measure of the bending load.
  • the receiving device can be arranged on the rod section and / or in the area of the drive device.
  • the signal can be transmitted to the receiving device as a raw signal or as an at least partially already evaluated signal.
  • the string section can be present as part of the string or drill string therein.
  • the rod section can have connecting elements by means of which the rod section can be connected to further sections of the rod or drill string.
  • the rod section can in particular be connected to the drill head, a sensor section that can be used for locating and / or a rod section. Plug and screw connections are possible and adapted to the other sections.
  • a detachable connection offers the advantage of a simple and quick exchange.
  • a read / write device (transmission device) can be provided with which the data stored on the memory elements relating to previous loads or previous results of the service life calculation can be read out.
  • the read / write device can be designed to be active for this purpose, i.e. it reads out the data stored in a passive memory element.
  • the read / write device can also interact with active memory elements which send the desired values to the read / write device.
  • the read / write device can be part of the receiving device or vice versa.
  • the writing / reading device and / or receiving device can be controlled by the control of the earth drilling device and can be functionally coupled to the control.
  • a read / write device which is separate from the earth boring device and which, for example, upgrades the earth boring device by carrying out the service life calculation, is possible.
  • the data connection between the rod section and the receiving device can take place wirelessly, for example by means of any data transmission technologies (for example radio and / or infrared data transmission, etc.).
  • a wireless one Transmission includes any at least partially contactless transmission of data, signals and / or energy.
  • the data connection can also be wired, which enables a simple configuration and can reduce the influence of interference.
  • At least one strain sensor is present on the rod section, the signal of which can be transmitted to the receiving device as a measure of the bending load by means of the data connection.
  • a “strain sensor” in the sense of the description is an element which can, in particular, provide signals that are correlated with an expansion or bending.
  • a strain sensor can be a passive component that can generate signals, but possibly only with the use of an excitation or in response to a signal, energy, pulse, or the like fed to the strain sensor.
  • Strain sensors can be measuring devices with which expanding and compressing deformations can be recorded. For example, these strain sensors, if designed as strain gauges, can change their electrical resistance in the event of slight deformations.
  • a strain sensor can be connected to the rod section, in particular the rod-shaped section of the rod section, which can be minimally deformed under load, in particular with an adhesive, cement or similar substance.
  • strain sensor can include various types of transducers, such as force transducers, pressure transducers, or even torque transducers.
  • a strain sensor can be designed as a strain gauge.
  • the strain gauges can for their part occur as foil, wire and semiconductor strain gauges as well as multiple strain gauges in various forms of arrangement, such as strain gauges with transverse strains, full bridge strain gauges and rosette strain gauges.
  • An embodiment as a fiber Bragg grating is also possible as an alternative or in addition.
  • an optical waveguide can be used in which an optical interference filter is written and in which an expansion due to a changing, coupled and reflected wavelength is detected.
  • the signal from a strain sensor is correlated with a compressing or expanding deformation.
  • the signal size can provide a conclusion about the size of the deformation.
  • the signal can be evaluated by an evaluation unit and a corresponding load can be calculated.
  • the evaluation unit can be arranged in the signal flow before or after the receiving device.
  • the evaluation unit can also be part of the receiving device and / or a strain sensor.
  • the evaluation unit can convert the signal detected by the strain sensor into a bending, strain and / or convert the curvature load or calculate and / or specify a value correlated therewith.
  • the rod section has a rod-shaped section on which at least one strain sensor is arranged.
  • a strain sensor on the linkage section can be sufficient. Multiple strain sensors, i.e. two, three or an even larger number of strain sensors, can provide redundancy and / or increased accuracy.
  • a plurality of strain sensors can be distributed on the rod section in the longitudinal direction and / or distributed in the circumferential direction.
  • strain sensors can be provided in an area of the linkage section which essentially corresponds to the central area of the linkage section in relation to the longitudinal extent of the linkage section. In this central area, the greatest bending loads can act on the rod section and the arrangement of the strain sensor in this area is therefore particularly sensitive.
  • the term “on” in the sense of the description relates to a spatial arrangement of a strain sensor on the rod section such that the strain sensor or at least a part of the strain sensor is connected to the rod section or attached to the rod section.
  • the strain sensor or the strain sensors can be attached to the rod section on the outside.
  • An attachment in recesses of the rod section on the outside is possible.
  • An arrangement on the inside is also possible.
  • Several strain sensors can be arranged in different ways on the rod section, for example at least one on the inside, at least one on the outside and / or at least one on a recess on the outside.
  • the arrangement of a strain sensor in a recess offers the possibility of improved protection of the strain sensor, since it is not located directly on the surface, but is offset from it.
  • the strain sensor can also be arranged on a sensitive section of the linkage section which, for example, is structurally different from the rest of the linkage section or is made of a different material; the strain sensor can be arranged, for example, on a thin-walled section of the rod section.
  • the rod section on which the strain sensor is arranged can in particular be made of steel.
  • the material or the rod section on which the at least one strain sensor is present is particularly preferably made from an isotropically behaving material in order not to allow a preferred direction for the bending load.
  • the rod section has a protective sleeve in which the rod-shaped section is arranged.
  • a protective sleeve in which the rod-shaped section is arranged.
  • the receiving rod-shaped section which in particular can have a smaller cross section than the rest of the linkage, can be protected.
  • the protective cover can protect a strain sensor fastened on the outside of the rod-shaped section from the ground. The strain sensor is not exposed in the ground due to the use of a protective cover.
  • the protective sheath can have a diameter substantially similar to that in the drill string of adjacent pipe sections.
  • the protective cover can be made of metal or a plastic.
  • the protective cover can be releasably fixed by means of a releasable fixation on the rod-shaped section, whereby by loosening the fixation, in particular, a displacement of the protective cover relative to the rod-shaped section is possible, for example in order to exchange the strain sensor, the protective cover and / or the rod-shaped section.
  • the rod-shaped section is designed to be hollow, as a result of which a geometry that is particularly sensitive and particularly sensitive to bending loads can be created.
  • the invention also creates a use in determining wear of a rod of an earth drilling device, wherein a rod section is designed for measuring a bend which is used to detect a bending load on the rod.
  • the bending load that is obtained by using the rod section to measure a bend can be used to calculate the service life of a rod, in particular of individual rod sections of the rod.
  • Fig. 1 shows a schematic representation of an earth boring device.
  • the earth boring device comprises a drive device 1 with two hydraulic cylinders 2 operated in parallel, the piston rods 3 of which transmit a linear movement to a rod 6 of the earth boring device via a pressure bridge 4 and a coupling element 5 connected to it.
  • the transfer takes place step by step, in that the hydraulic cylinders 2 of the drive device 1 each perform a working and an idle stroke cyclically.
  • the earth boring device with the drive device 1 is suitable for both pushing and pulling operation.
  • the linkage 6 has a plurality of linkage sections 8 connected to one another via couplings 7.
  • the earth boring device has a detection device for detecting an instantaneous load on the rod, which includes a pressure sensor 9 and the in the Figs. 2 and 3 illustrated linkage section 15, which in connection with the Figs. 2 and 3 is described in more detail includes.
  • the Fig. 1 Earth drilling device shown has an evaluation device 13 for carrying out a service life calculation for the rods.
  • the hydraulic pressure in one or in both of the hydraulic cylinders 2 can be measured by means of the pressure sensor 9.
  • the hydraulic pressure is proportional to the compressive or tensile forces exerted on the linkage 6.
  • the hydraulic pressure is transmitted to a computer unit of the evaluation device 13.
  • the earth boring device also comprises a transmission device 16 which, in the exemplary embodiment shown, comprises a writing unit 10 and a reading unit 11.
  • a transmission device 16 which, in the exemplary embodiment shown, comprises a writing unit 10 and a reading unit 11.
  • data can be written wirelessly to memory elements 12, one of which is attached to each of the rod sections 8, or can be read from them.
  • Both the writing unit 10 and the reading unit 11 are connected to the evaluation device 13.
  • the earth boring device enables the individual loads to which the individual rod sections 8 are exposed to be determined and, from this, individual service life calculations to be carried out.
  • the data stored on the corresponding memory element 12 is read out by means of the reading unit 11.
  • the evaluation device 13 determines the load exerted on the rod section 8, the data from the pressure sensor 9 and the data recorded on the rod section 15 being evaluated for the determination.
  • an individual service life calculation can be carried out for each individual one of the rod sections 8 of the rod 6 in the evaluation unit 13.
  • the first rod section 8 of the rod 6, which is directly connected to the drill head, is loaded the longest, since it is coupled as the first rod section and the last to be uncoupled again (for example when creating a pilot bore and withdrawing the rod with an expander head).
  • FIG. 1 The embodiment of an earth boring device shown here has a screen 14 on which the result of the service life calculation, as it is stored on the corresponding RFID chip when each rod section 8 is uncoupled, is displayed. This enables the operator of the earth boring device to read off the information presented there with regard to the expected service life for the respective rod section 8. In this way, for example, rod sections 8 whose expected service life is no longer long enough for subsequent use can be sorted out directly. In addition, the individual rod sections 8 can be sorted according to their expected service life after uncoupling and stored accordingly.
  • a front area of the drill string with rod assemblies 8 and a drill head 17 is shown schematically in a view obliquely from the rear.
  • a transmitter section 18 with a transmitter, to which the rod section 15 is connected, is arranged between the drill head 17 and the rod sections 8.
  • the transmitter in the transmitter section 18 is used to locate the drill head 17 or to locate the drill string.
  • the drill head 17 with the following transmitter section 18 and rod section 15 as well as the rod sections 8 follows the earth drilling that is created in the ground. The curvature of the course of the earth borehole can be detected with the rod section 15.
  • the linkage section 15 detects a bending load.
  • the linkage section 15 is in the Fig. 3 shown enlarged.
  • the rod section 15 has a rod-shaped section 19, the diameter of which is smaller than the diameter of the rod sections 8.
  • the rod-shaped section 19 is surrounded by a protective sheath 20, which essentially has an outer dimension that corresponds to the dimension of the drill head 17 and the transmitter section 18.
  • the protective cover 20 protects the rod-shaped section, which is designed to be hollow.
  • the protective cover 20 protects the strain sensors 21 arranged on the rod-shaped section 19, which essentially are attached centrally with respect to the longitudinal extent of the rod-shaped portion 19 on this.
  • a cable 22 is transmitted for connection to a receiving device 23, which transmits the data to a control of the earth drilling device or the evaluation device 13.
  • the values of the strain sensors 21 can be transmitted wirelessly to the receiving device 23.
  • the receiving device 23 is connected to the evaluation device 13 in a wired or wireless manner.
  • the receiving device 23 transmits the signals from the strain sensor 21 to the evaluation device 13 in an evaluated form and / or in a raw version so that the evaluation device 13 can calculate the service life of the rod or the individual rod section 8 using the data from the pressure sensor 9.

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Claims (5)

  1. Procédé de détermination d'usure d'une tige (6) d'un dispositif de forage du sol, caractérisé en ce qu'une charge de flexion de la tige (6) est saisie de manière représentative à une ou plusieurs sections de tige qui sont disposées dans la tige (6) et la charge de flexion est attribuée aux différents tronçons de tige (8) de la tige (6) et utilisée comme critère de référence pour réaliser le calcul de la durée de vie des différents tronçons de tige (8).
  2. Procédé selon la revendication 1, caractérisé en ce que la position du tronçon de tige (8) dans la tige (6) est prise en compte pour l'attribution de la charge des différents tronçons de tige (8).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la durée, pendant laquelle le tronçon de tige (8) se trouve dans la tige (6), est prise en compte.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la charge de flexion de la tige (6) est mesurée à l'aide d'une section de tige (15) sur laquelle au moins un capteur de contrainte (21) est présent.
  5. Procédé selon la revendication 4, caractérisé en ce que le capteur de contrainte (21) saisit la charge de cambrage suivant le principe d'une jauge de déformation, d'un capteur de réseau de Bragg à fibre ou similaire.
EP20165948.9A 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage du sol Active EP3690185B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017118853.3A DE102017118853A1 (de) 2017-08-18 2017-08-18 Verfahren zum Bestimmen eines Verschleißes eines Gestänges einer Erdbohrvorrichtung
EP18179478.5A EP3444433B1 (fr) 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage de puits

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP18179478.5A Division-Into EP3444433B1 (fr) 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage de puits
EP18179478.5A Division EP3444433B1 (fr) 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage de puits

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EP3690185A1 EP3690185A1 (fr) 2020-08-05
EP3690185B1 true EP3690185B1 (fr) 2021-12-22

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EP18179478.5A Active EP3444433B1 (fr) 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage de puits
EP20165948.9A Active EP3690185B1 (fr) 2017-08-18 2018-06-25 Procédé de détermination de l'usure d'une tige d'un dispositif de forage du sol

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US (1) US11566512B2 (fr)
EP (2) EP3444433B1 (fr)
AU (1) AU2018217302B2 (fr)
DE (1) DE102017118853A1 (fr)

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DE102019002549A1 (de) 2019-04-08 2020-10-08 TRACTO-TECHNlK GmbH & Co. KG Erdbohrvorrichtung, Transfervorrichtung einer Erdbohrvorrichtung, Steuerung einer Transfervorrichtung einer Erdbohrvorrichtung und Verfahren zur Steuerung einer Erdbohrvorrichtung

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EP3444433B1 (fr) 2020-06-17
US20190055831A1 (en) 2019-02-21
EP3690185A1 (fr) 2020-08-05
EP3444433A1 (fr) 2019-02-20
AU2018217302A1 (en) 2019-03-07
AU2018217302B2 (en) 2020-05-14
US11566512B2 (en) 2023-01-31
DE102017118853A1 (de) 2019-02-21

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