EP3690185A1 - 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
EP3690185A1
EP3690185A1 EP20165948.9A EP20165948A EP3690185A1 EP 3690185 A1 EP3690185 A1 EP 3690185A1 EP 20165948 A EP20165948 A EP 20165948A EP 3690185 A1 EP3690185 A1 EP 3690185A1
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EP
European Patent Office
Prior art keywords
rod
section
linkage
sections
load
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.)
Granted
Application number
EP20165948.9A
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German (de)
English (en)
Other versions
EP3690185B1 (fr
Inventor
Sebastian Fischer
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.)
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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Publication of EP3690185B1 publication Critical patent/EP3690185B1/fr
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Classifications

    • 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 of a rod of an earth drilling device and an earth drilling device with a rod section.
  • the invention further relates to a use in an earth drilling device for determining wear of a rod of the earth drilling device.
  • Earth boring devices usually comprise a drive device and a linkage connected to it, to which a drilling head, which can be designed as a tool, can be attached.
  • the drill head can be an expansion head or a pipe pull-in adapter.
  • the drive forces of the drive device are transmitted to the drill head via the linkage, as a result of which the drill head is driven forward in the ground.
  • pressure forces are generally applied to the drilling head, so that it is pushed through the soil.
  • the term “drilling an earth hole” by means of the earth drilling device also includes a transmission of tensile forces to the rod and the drill head.
  • the rod of an earth drilling device regularly consists of a plurality of interconnected rod sections, which are successively connected to one another (in pushing operation) or detached from one another (in pulling operation) depending on the advance of the drill head in the ground.
  • the linkage sections can be connected, for example, via screw connections or plug-in couplings. Mixed connections from screw connections and plug couplings are possible.
  • linear drives When driving forces are transmitted to the drill head by means of the rod, almost exclusively linear drives are used which transfer the drive forces or drive movements step by step to the rod, ie 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.
  • Conventional linear drives for earth drilling devices work with hydraulic cylinders as the drive source, with which high forces can be applied with comparatively compact dimensions.
  • Linear drives with rack and pinion drives are also known.
  • the object of the invention was to increase the operational safety of an earth drilling device and / or to improve life cycle calculations of a rod of an earth drilling device.
  • the essence of the invention provides for the detection of bending loads on the rod assembly in order to improve a service life calculation and / or to increase the operational safety of an earth drilling device, the load not being able to be determined in particular on the drive device, but in the earth drilling itself, in that a course of the earth drilling , in particular a curved area of the earth hole, can be detected.
  • a method for determining wear of a rod of an earth boring device therefore provides that a bending load on the rod is recorded in order to carry out a service life calculation.
  • a load is also essentially determined in addition to the drive device and a load in the earth borehole itself is determined.
  • the load can be recorded within the borehole and taken into account for the service life calculation.
  • the prevailing view that the boom sections are only exposed to the load from the drive device or that the load on the drive device alone is determined was supplemented according to the invention.
  • linkage does not only include rigid linkages that have individual linkage sections that are directly or indirectly connected to one another, but in particular all force transmission elements that can be used in an earth drilling device.
  • linkage should not only be understood to mean the force transmission element which is arranged between the drive device of the earth drilling device and the drilling head, but basically all components of a drill string, i.e. all components moving in the ground, such an earth drilling device, which are exposed to a load due to forces and / or moments applied by the drive device.
  • the generic term “rod” can also be understood to mean the drill head as part of the drill string.
  • the term “drive device” encompasses a drive by means of which the drive forces or drive movements are transmitted to the linkage or the drill string.
  • the drive device can be configured 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 the drive source.
  • the bending load on the linkage is measured by means of a linkage section on which at least one strain sensor is present. It was recognized that a detection of the load is required regardless of the drive device of the earth boring device, 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 instead on one or more rod sections that are in the drill string or 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 further piece of information can be derived from the following machine data in order to carry out the service life calculation: torsion, tensile load, shear 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 boom sections of the boom. This makes it possible not only to make a general statement about the boom sections of the boom in the ground, but also to indicate the load for each individual boom section. It can be taken into account how long and at what position the boom section is in the boom. With regard to the bending load, it can thus be taken into account which rod section has been subjected to a bending load or whether, for example, a rod section has not (yet) passed through a curved region of the earth hole. Depending on the position of the boom section in the boom, the bending load can be taken into account.
  • the method described is therefore particularly suitable for determining the wear of a linkage which comprises a plurality of linkage sections connected to one another.
  • the individual loads of individual or all of the boom sections are preferably measured and individual service life calculations are carried out for this purpose. This in turn can significantly 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 a completed work project (for example an earth drilling, a bursting process or a pipe pull-in process) is carried out, the individual boom sections differ depending on the point in time at which they are incorporated into the boom be burdened for a long time.
  • a completed work project for example an earth drilling, a bursting process or a pipe pull-in process
  • the individual boom sections are also used in a large number of work processes, whereby it is usually not possible to keep track of which boom section is used for which work project and how long it has been used.
  • the values for the individual boom sections are preferably stored separately, this being particularly preferably possible in a storage element which is connected to the respective boom section itself.
  • the term “storage element” in the sense of the invention relates to any data storage or a storage medium, which can in particular be electronically written and / or read out.
  • the storage element can store information on the basis of electronic semiconductor components or other components.
  • the storage element can in particular be a non-volatile memory. Contactless reading and / or writing of data to the storage element is preferred.
  • a memory element can preferably be an RFID chip, which usually has an antenna, an analog circuit and 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 carried out by the drive device (a device or device integrated in the drive device) or by a device adjacent to the drive device (an additional device, for example, the (partial) tasks of the service life calculation or can carry out steps to be carried out in this context (partial) tasks, for example as a module to be purchased, can be transferred to the individual storage elements.
  • a transmission device can preferably be provided on the device side (integrated on or in the drive device or separately thereto), which serves to transmit the measured loads and / or the results of the service life calculations to the storage elements of the boom 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 possibility of a service life calculation.
  • the transmission of the measured load or the individual life calculations of a load case with a rod loaded under tension can take place when the rod is gradually pulled by the drive device through a hole in the ground, the individual boom sections are successively pulled out of the borehole and released from the rest of the boom by transferring the loads or the results of the life calculations to the storage element of the boom section to be released shortly before, during the release of this boom section or shortly thereafter, in particular, as long as it is still in the area of the drive device.
  • the loads stored on the storage elements of the individual rod sections or the results of the service life calculation first go to the drive device or one to transfer external device (module), then in the drive device or the external device (module) with the loads (for example the number of drive strokes with the respective force values and / or the bending load) or life cycle calculation of the last load case and to update the updated Store values back on the storage elements. In this way, aging of the individual boom sections on the current construction site can be offset against that on the previous construction sites.
  • the invention also provides an earth boring device with 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 drilling device.
  • a bending load which acts on the boom or the individual boom sections can be determined by means of the boom section.
  • the boom section follows the course of the boom to create the earth borehole and can thus indicate which bend the individual boom sections are subjected to as the movement progresses through the earth borehole.
  • the measurement of the bend is actually carried out by means of the linkage section arranged in the linkage.
  • 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 linkage section in the front area is desirable so that the linkage section can be used to determine how the earth hole runs, ie which bends are also present in the front area of the earth hole.
  • the "receiving device” in the sense of the description is a device that can receive a signal for a bending or stretching 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 region of the drive device.
  • the signal can be transmitted to the receiving device as a raw signal or as an at least partially evaluated signal.
  • the rod section can be present as part of the rod or drill string.
  • the linkage section can have connecting elements by means of which the linkage section can be connected to further sections of the linkage or drill string.
  • the rod section can in particular be connected to the drill head, a sensor section that can be used for location and / or a rod section. Plug and screw connections are possible and adapted to the other sections.
  • a detachable connection offers the advantage of simple and quick exchange.
  • a read / write device (transmission device) can be provided with which the data relating to previous loads or earlier results of the service life calculation stored on the storage elements can be read out.
  • the read / write device can be designed to be active, 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 read / write device and / or receiver device can be controlled by the controller of the earth boring device and can be functionally coupled to the controller.
  • a read / write device which is separate from the earth drilling device and which, for example, upgrades the earth drilling device by carrying out the service life calculation, is possible.
  • the data connection between the rod section and the receiving device can be wireless, for example by means of any data transmission technologies (for example radio and / or infrared data transmission, etc.).
  • a wireless one Transmission comprises any contactless transmission of data, signals and / or energy, at least in sections.
  • the data connection can also be configured as a cable, which enables a simple configuration and can reduce the influence of interference.
  • At least one strain sensor is present on the linkage 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 which are correlated with a strain or bending.
  • a strain sensor can be a passive component that can generate signals, but possibly only using an excitation or in response to a signal, energy, pulse, or the like supplied to the strain sensor.
  • Strain sensors can be measuring devices with which stretching and compressing deformations can be detected. For example, these strain sensors, provided that they are designed as strain gauges, can change their electrical resistance in the event of small deformations.
  • a strain sensor can in particular be connected with an adhesive, cement or similar substance, integrally with the rod section, in particular the rod-shaped section of the rod section, which can deform minimally under load.
  • strain sensor can encompass different types of transducers, such as, for example, force transducers, pressure transducers or even torque transducers.
  • a strain sensor can be designed as a strain gauge.
  • the strain gauges can in turn exist as foil, wire and semiconductor strain gauges as well as multiple strain gauges in various arrangement forms, 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 elongation due to a changing, coupled and reflected wavelength is detected.
  • the signal from a strain sensor is correlated with an upsetting or stretching deformation.
  • the signal size can provide an indication of 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 before or after the receiving device in the signal flow.
  • the evaluation unit can also be part of the receiving device and / or of 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 indicate 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 boom section may be sufficient.
  • Multiple strain sensors i.e., two, three, or an even greater number of strain sensors, can provide redundancy and / or increased accuracy.
  • a plurality of strain sensors can be distributed on the linkage section in the longitudinal direction and / or distributed in the circumferential direction.
  • strain sensors can be provided on a region of the rod section which essentially corresponds to the central region of the rod section in relation to the longitudinal extent of the rod 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 in such a way that the strain sensor or at least part of the strain sensor is connected to the rod section or is fastened to the rod section.
  • the strain sensor or the strain sensors can be attached to the outside of the rod section. An attachment in recesses of the rod section 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 this is not present directly on the surface, but is instead offset.
  • the strain sensor can also be arranged on a sensitive section of the linkage section, which is, for example, structurally different from the rest of the linkage section or made of a different material; the strain sensor can, for example, be arranged 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 of an isotropically behaving material, in order not to allow any preferred direction in the bending load.
  • the rod section has a protective cover in which the rod-shaped section is arranged.
  • the protective cover can protect a strain sensor attached to 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 essentially have a diameter similar to that in the drill string of adjacent rod sections.
  • the protective cover can be made of metal or a plastic.
  • the protective cover can be releasably fixed to the rod-shaped section by means of a releasable fixation, wherein by releasing the fixation it is possible, in particular, to shift the protective cover relative to the rod-shaped section, for example to replace 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 particularly sensitive geometry that is particularly sensitive to bending loads can be created.
  • the invention also provides use in determining wear of a drill string of an earth boring device, wherein a drill section is configured to measure a bend used to detect a bending load on the drill pipe.
  • the bending load which is obtained by using the linkage section to measure a bend can be used to calculate the service life of a linkage, in particular of individual linkage sections of the linkage.
  • 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 linkage 6 of the earth boring device via a pressure bridge 4 and a coupling element 5 connected thereto.
  • the transmission takes place step by step, in that the hydraulic cylinders 2 of the drive device 1 cyclically carry out one working and one idle stroke.
  • 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 assembly, which includes a pressure sensor 9 and that in FIGS 2 and 3 shown rod section 15, which in connection with the 2 and 3 is described in more detail.
  • Fig. 1 shown earth boring device on an evaluation device 13 for performing a life calculation for the linkage.
  • the hydraulic pressure in one or 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 includes a transmission device 16, which in the exemplary embodiment shown comprises a writing unit 10 and a reading unit 11.
  • the transmission device 16 can be used to write or read data wirelessly to storage elements 12, one of which is attached to each of the rod sections 8. 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 individual service life calculations to be carried out therefrom.
  • the data stored in the corresponding storage element 12 (for any previous uses of this rod section 8) that have been used for each of the rod sections 8 is read out shortly before uncoupling by means of the reading unit 11.
  • the evaluation device 13 determines the load exerted on the boom section 8, the data of the pressure sensor 9 and the data recorded on the boom section 15 being evaluated for the determination. Based on these concrete values, an individual service life calculation can be carried out for each of the linkage sections 8 of the linkage 6 in the evaluation unit 13.
  • the first rod section 8 of the rod 6, which is connected directly to the drill head, is loaded for the longest time, since it is coupled as the first rod section and the last one to be uncoupled (for example when creating a pilot hole and pulling back the rod with an expanding head).
  • the illustrated embodiment of an earth boring device 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 drilling device to read the information shown there with regard to the expected service life for the respective rod section 8. As a result, rod sections 8, for example, 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 lifespan after uncoupling and stored accordingly.
  • a front area of the drill string with rod sections 8 and a drill head 17 is shown schematically in a view obliquely from behind.
  • a transmitter section 18 with a transmitter is arranged, to which the rod section 15 connects.
  • the transmitter in the transmitter section 18 is used to locate the drill head 17 or locate the drill string.
  • the drilling head 17 with the subsequent transmitter section 18 and rod section 15 and the rod sections 8 follows the earth drilling which is made in the ground.
  • the rod section 15 With the rod section 15, the curvature of the course of the borehole can be detected.
  • the rod section 15 detects a bending load.
  • the rod 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 cover 20, which essentially has an outer dimension that corresponds to the dimension of the drill head 17 and transmitter section 18.
  • the protective cover 20 protects the rod-shaped section which is hollow.
  • the protective cover 20 essentially protects strain sensors 21, which are arranged on the rod-shaped section 19 are attached to the center of the rod-shaped section 19 with respect to the longitudinal extent thereof.
  • 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 of 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 carry out a service life calculation for the linkage or the individual linkage section 8, including 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)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Earth Drilling (AREA)
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 true EP3690185A1 (fr) 2020-08-05
EP3690185B1 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

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US (1) US11566512B2 (fr)
EP (2) EP3690185B1 (fr)
AU (1) AU2018217302B2 (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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DE112013007353T5 (de) * 2013-08-20 2016-04-28 Halliburton Energy Services, Inc. Bohrlochbohroptimierungskragen mit Glasfasern

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WO2010046099A1 (fr) * 2008-10-21 2010-04-29 Tractor-Technik Gmbh & Co. Kg Procédé pour déterminer l'usure d'une tige, soumise à des forces, d'un équipement de terrassement
DE102008052510B3 (de) 2008-10-21 2010-07-22 Tracto-Technik Gmbh & Co. Kg Verfahren zum Bestimmen des Verschleißes eines mit Kräften belasteten Gestänges einer Erdarbeitsvorrichtung
DE112013007353T5 (de) * 2013-08-20 2016-04-28 Halliburton Energy Services, Inc. Bohrlochbohroptimierungskragen mit Glasfasern

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Publication number Publication date
EP3444433B1 (fr) 2020-06-17
US11566512B2 (en) 2023-01-31
AU2018217302B2 (en) 2020-05-14
EP3444433A1 (fr) 2019-02-20
AU2018217302A1 (en) 2019-03-07
DE102017118853A1 (de) 2019-02-21
US20190055831A1 (en) 2019-02-21
EP3690185B1 (fr) 2021-12-22

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