EP3722552B1 - Earth boring device, transfer device of an earth boring device, control of a transfer device of an earth boring device and method for controlling an earth boring device - Google Patents

Description

The invention relates to an earth boring device, a transfer device of an earth boring device, a controller for a transfer device of an earth boring device and a method for controlling an earth boring device.

Out of DE 10 2009 035 277 A1 a drilling device is known which has a rod magazine with a large number of rod sections stored therein, a drill carriage and a transfer device with which the rod sections can be removed from the rod magazine and positioned in the drill carriage. The rod magazine is positioned next to a base support of the drill rig. The rod magazine has the shape of a cuboid and is made up of a plurality of frame profiles connected to one another. The top of the rod magazine is designed to be open, so that the transfer device reaches into the rod magazine and can remove a rod section. The transfer device is connected via a carrier frame both to an outer wall of the rod magazine and to the base carrier of the drill carriage. Horizontally aligned toothed racks are present on the support frame, which mesh with drive gears of a drive. A gripping unit of the transfer device can be moved in the horizontal direction along the horizontal toothed racks.

EP 0 945 588 A2 discloses a drill pipe magazine in which the tools or workpieces to be handled are constrained to be slightly spaced apart.

It has been found that known drilling devices achieve good results, but the time it takes to carry out an earth bore can be increased, in particular by manual selection of the rod sections by an operator and/or a loss of the drill rod due to fatigue or wear of a rod section.

The invention is now based on the object of creating an earth drilling device, a transfer device of an earth drilling device, a control of a transfer device of an earth drilling device and a method for controlling an earth drilling device, in which a simply constructed earth drilling device with a shortened time for drilling an earth hole is used can be, in particular absenteeism due to uneven wear or uneven wear of individual rod sections of a drill string can be reduced.

The object is solved by the subject matter of the independent claims. Advantageous embodiments are the subject of the respective dependent claims and the description.

The core idea of the invention is to select specific rod sections from the rod magazine in the form of an automatic workflow without requiring interaction with an operator. A controller can select a rod section that is intended to lengthen the drill string that has already been drilled into the ground. The selection can be made according to different criteria and/or specifications. For example, the selection can be made in that the rod sections in the rod magazine are removed in a predetermined order defined by the controller in order to lengthen the drill string. In this respect, the selection can be predetermined by a predetermined order of removal. The rod sections are selected according to the type of position in the rod magazine. In such a case, the rod magazine can be loaded with rod sections according to the predetermined sequence and the sequence can be taken into account in this respect. However, it can also--additionally or alternatively--be provided that the rod sections located in the rod magazine are additionally or alternatively selected according to a stipulation or a criterion. For example, it can be provided that information is available in the form of one or more rod section parameters about the individual rod sections located in the rod magazine. The information relating to the rod section can be, for example, the length of time that the rod section has already been used to drill an earth bore. The drill string parameter(s) may also be information about the type of stress that the drill string has experienced in previous earth drilling. In addition to or in addition to or instead of or as an alternative to the at least one rod section parameter, a criterion for selection can also include at least one drilling parameter. The borehole parameter can be information regarding the borehole to be carried out, for example the length of time and/or the additional spatial length or extent that the earth borehole will still be drilled into the ground. As a result, it can be taken into account how long the rod sections located in the drill rod are exposed to a load.

The borehole parameter(s) can also include what material the drill head hits or will hit and what loads are thereby acting on the drill rods. The drilling parameter can also be a parameter that takes into account a possible (further) bending of the drill string. In particular, the service life of the rod sections can be optimized and the rod sections can be dynamically organized at least (semi-)automatically with regard to their use.

The inventors have recognized that an at least semi-automatic selection of a specific rod section from the rod magazine represents a significant advantage for the operator and ultimately the operator of the earth drilling device. The operator no longer has to make a selection and for this reason alone the borehole can be drilled more quickly, with an optimized selection also being possible. The processing of a predetermined sequence, which can be optimized with regard to the access time to the rod magazine, can be optimized. However, the selection can also, additionally or alternatively, make an optimized selection of specific rod sections for the application according to specific criteria possible and thus optimized by means of information about the borehole to be created (borehole parameters) and/or information about individual rod sections (rod section parameters). It may be possible to relocate or rearrange the rod sections located in the rod magazine. The rearranging can be carried out at least semi-automatically in order to access a specific rod section which, for example, was not accessible before the rearranging, for example because it was covered by one or more rod sections.

The invention provides an earth drilling device with a drill carriage which defines a drill string axis. The earth drilling device has a rod magazine for a plurality of different rod sections and a transfer device for the transfer of a rod section between the rod magazine and the drill rod axis. The rod magazine is designed for a horizontal arrangement of the rod sections in compartments arranged next to one another for access from above by means of the transfer device. A controller of the transfer device is designed to select a specific rod section in the rod magazine depending on at least one drilling parameter and/or at least one rod section parameter.

In the context of the description, the term "earth drilling device" includes any device which, in particular, moves a drill rod containing rod sections in an existing or to be created channel in the ground in order to create or widen a bore, in particular a horizontal bore (HD), or pipelines or other long ones body into the ground. At the auger it can in particular be an HD device. An earth boring device can be a device that drives a drill string and can in particular work in a soil-displacing manner. The drill string can be introduced into the ground in a translatory and/or rotary manner in the longitudinal axial direction of the drill string. A hole can be drilled into the ground by applying tension or pressure to the drill pipe.

The term "soil" in the sense of the description includes in particular any type of material, in particular earth, sand and/or stone, in which existing or to be created, preferably at least partially horizontal, channels or bores can be introduced.

The term "drilling rig" includes a particularly mobile frame on which a carriage for moving the drill string can be provided, which can be moved back and forth in the direction of the drill string axis in order to push or pull the drill string in the ground. The drill rig usually includes at least the carriage and/or a linear drive for advancing the drill rod. The linear drive can additionally or alternatively have a rotary drive for rotating the drill rod. The drill carriage can also have one or more clamping devices, via which the drill rod or a rod section to be attached can be fixed. It can be provided that a clamping device is provided on the drill carriage, by means of which the free end of the drill rod can be fixed in order to enable a new rod section to be connected to the drilled rod.

The term "drill pipe axis" relates in particular to the axis formed by the longitudinal axes of the individual sections of the drill pipe. In particular, the longitudinal axes of the rod sections are considered, which are present in the nearer area of the earth drilling device or the drill carriage in the drill rod. In particular, the last and/or penultimate rod section in the drill rod, whose longitudinal axis is predetermined by the drive element with which the last rod section is in engagement, are taken into account. Essentially, the drill rod axis can be regarded as defined by the drill rod, since a carriage can be moved on the drill rod, with which a receptacle can be moved, into which a rod section can be inserted in order to connect the rod section to the drilled drill rod.

The term "drill pipe" as used in the description includes any means that can be introduced into the ground in order to make a borehole in the ground. The drill rod can in particular have rod sections, a chain and/or a cable. The term "drill rods" does not include in the sense of the description exclusively rigid drill rods having individual rod sections connected directly or indirectly to one another, but in particular all power transmission elements that can be used in an earth drilling device. Furthermore, the drill string comprises at one end, in particular the front end, a drill head and a drill head tip that may be present or an area adjacent to the drill head, which in particular can have the same orientation as the drill head. In a particularly preferred embodiment, a front section of a drill string is configured as a drill head or drilling tool. The drill rod can also have a sensor section or a sensor housing, in which a sensor is arranged, which enables a position and/or attitude determination, in particular with regard to the attitude determination, a roll angle.

In the context of the description, the term “transfer device” includes a device for receiving or lifting a rod section, in particular by means of one or more receiving or lifting devices. The transfer device can be designed both to transfer a rod section from the rod magazine into the drill rod axis (pushing insertion of a borehole) and to transfer a rod section from the drill rod axis into the rod magazine (pulling the drill rod out of the ground).

In particular, a pick-up device or lifting device can be designed as a gripping device, but other embodiments are also possible, additionally in combination with a gripping device or alternatively without a gripping device. A receiving device can also have a magnet or electromagnet, for example, with which the rod section or a magnet or magnetized section arranged on the rod section can interact in order to at least temporarily form a detachable connection of the receiving device with the rod section. The rod section can be lifted out of the rod magazine and moved by means of the pick-up device.

As a rule, a pick-up device is designed as a gripping device, so that the transfer device can have at least one gripping device; more than one gripping device is possible, in particular the transfer device has two gripping devices which are arranged on a beam at a longitudinal axial distance from one another. The gripping device can grip a rod section at least in sections along a peripheral section. The transfer device has a possibility for moving the at least one gripping device, by means of which a rod section can be picked up or gripped in particular in the rod magazine and can be moved into a position in the direction of the drill rod axis. It may also be possible for the transfer device to transfer a rod section from a position in the direction of the drill rod axis into the Can move rod magazine, for example, when the drill rod is pulled out of the ground. The at least one gripping device can be moved vertically and horizontally, both transversely and longitudinally, parallel to the drill rod axis. The transfer device can in particular like that from the DE 10 2009 035 277 A1 known transfer device be designed essentially.

A "rod magazine" in the sense of the description comprises in particular a magazine which has two end elements or head pieces on which separating elements are provided. In particular, the separating elements can be directed towards one another in order to specify a division or compartments or rows of the rod sections in the rod magazine. The separating elements can extend over the entire length between the end elements. It is also possible for the separating elements to extend over the entire length between the two end elements. For the purposes of the description, the term "rod magazine" also includes a rod such as it is made out of DE 10 2009 035 277 A1 is known.

The rod magazine enables the rod sections to be arranged in a substantially horizontal manner. The rod sections can lie on top of one another in direct contact with one another in the rod magazine; every two rod sections can have direct contact with each other. Adjacent rod sections in a compartment can contact each other directly. The width of the compartments transverse to the longitudinal axis of the rod magazine can essentially correspond to the width of a rod section. In particular, columns can be formed in the compartments that are one rod section wide (transverse to the longitudinal axis of the rod magazine) and several rod sections high.

By forming compartments in the rod magazine, positions can be defined at which a rod section can be positioned or arranged. Due to the horizontal arrangement of the rod sections, not all defined positions are possible when the rod magazine is not fully loaded, since there cannot be empty positions between two adjacent rod sections. Because the rod sections lie on top of each other, there are no empty intermediate positions. On the other hand, only the top rod section of a compartment or a column can (initially) be accessed. The positions defined in the rod magazine by means of the compartments and the thickness of the rod sections can be indexed and/or numbered for the purpose of visualization and/or assignment. By means of the index and/or the number, a position in the rod magazine can be clearly assigned. There can be an assignment as to whether and which rod section is present at a position in the rod magazine. The assignment can be tracked by means of the controller, in particular when a rod section is (newly) stored in the rod magazine, a rod section in the rod magazine is rearranged and/or a rod section is removed from the rod magazine.

The term "control" in the sense of the description includes a configuration using hardware and/or software, by means of which a targeted influencing during operation is possible. The controller can have a hardware component and/or a software component. The controller can be present as a separate hardware component (module) that can be integrated into a controller of an earth drilling device and/or functionally connected to it. The hardware module can be designed electrically or electronically. A hardware component of the controller may also be at least partially implemented in the controller of the earth drilling device and use the processor to operate the earth drilling device. In this respect, the hardware component can be at least partially identical or identical to the hardware for controlling the earth drilling device. The controller can include a command sequence as a software component that can be executed on a processor that can be configured as a separate processor (separate hardware module) or as a processor of the earth drilling device. The hardware component includes the processor, which is designed as an arithmetic unit with electronic circuits in order to execute commands. In a preferred embodiment, the controller also includes a sequence of instructions executable on the processor. The command sequence can be designed in the form of a program. The command sequence can act in a directed or targeted manner on the transfer device in order to specifically select a rod section present in the rod magazine; the command sequence determines the next rod section to be selected. The selected rod section can be controlled by the transfer device via an index or a number of the position in the rod magazine.

The term "at least one" and corresponding grammatical adaptations of the indefinite article "ein" to the gender of the noun following the term include, for the purposes of the description, the possibility that one, two, three, four or another integer number of the noun designated by the noun elements are taken into account or are present.

If it is described that the specific rod section is selected as a function of at least one drilling parameter and/or at least one rod section parameter, essentially two criteria are taken into account. For the purpose of the description, "bore parameters" are parameters which are more or less related to the earth bore to be carried out. A borehole parameter can be the length of the borehole still to be bored, ie the remainder of the borehole to be carried out. The length can be given in the form of a remaining time and/or a distance still to be drilled be. A drilling parameter can be an indication of the (currently) applied feed force of the drive. A drilling parameter can be the (current) speed of the drive, it being possible for the current speed to be during the drilling that is currently to be carried out or an “added up” speed during the drilling that is currently to be carried out. A drilling parameter can be the (current) tractive force of the drive, in particular during the drilling that is currently to be carried out. With the at least one drilling parameter, conditions for the drilling to be carried out, which are caused in particular by the drilling distance and/or the soil to be drilled through, can be taken into account.

A “rod section parameter” is understood to mean a parameter that is assigned to the respective rod section as information relating to it. For example, the rod section can be assigned how often and/or how long it has already been used when drilling an earth bore. A rod section parameter can also be the overall feed force applied to the rod section in the sense of a shear load. A drill string parameter may be torsional loading from previous earth wells. A drill string parameter may be a tensile load from previous earth wells. A drill string parameter may be a bending stress from previous earth wells. A rod section parameter can also be a wear associated with the rod section, which results from at least one of the aforementioned loads from previous earth drilling (shear load, tensile load, torsional load, bending load). In a preferred embodiment, a service life calculation can be assigned to individual rod sections as a rod section parameter. This makes it possible for the load that the rod section has experienced in previous drillings to be specified and taken into account for each individual rod section. In particular, how long and at what position the rod section was located in the drill rod can be taken into account. Information from the following machine data can influence the service life calculation: torsion, tensile load, shear load and speed. From the machine data of the drive device, the torsional load, tensile/compressive load, torque, number of operations carried out in a drill rod (in particular the number of screw connections for connecting the rod sections for wear of the thread) and/or speed (in particular the number of each rotations performed for each rod section because of the alternating bending stress) of the individual rod sections. In addition, the detection of a bending load, in particular in the form of a bending radius, of the rod sections is possible and can be taken into account when calculating the service life. In particular, a lifetime detection, as in the DE 10 2017 118 853 A1 is described, are carried out.

The rod section parameters for the individual rod sections can preferably be stored separately, and this can particularly preferably be done in a storage element that is connected to the respective rod section itself. By providing individual or all rod sections with corresponding storage elements, it can be ruled out that the rod section parameters are mixed up. In addition, there is no need for time-consuming data management, which mixes different rod sections for different work projects and uses them at different construction sites. However, it is also possible for a rod section to have an identifier that individualizes the rod section and for the data relating to one or more rod section parameters for the individual rod sections to be stored in a central assignment. For the purpose of the description, the term "central" describes the existence of the possibility that from several rod sections the rod section parameters are present in one place, i.e. "central". The location can be the earth drilling device or a storage device configured in or on the earth drilling device. The earth drilling device can access the memory in which the rod section parameter or parameters for the individual rod section are stored. For the assignment of the rod section parameters, it is possible with central storage or storage, to store the values for the individual rod sections centrally and to provide each rod section with an identifiable code (e.g. serial number of the rod section, which can be determined optically, for example), which then assigned to the centrally stored values.

The term "memory element" in the sense of the description relates to any data memory or a storage medium which can be written to and/or read from in particular electronically. The memory element can store information on the basis of electronic semiconductor components or other components. In particular, the memory element can be a non-volatile memory. Contactless reading and/or writing of data to the memory element is preferred. A memory element can preferably be a large RFID chip, which typically has an antenna, analog circuitry and digital circuitry, and non-volatile memory. The RFID chip can be a passive, active or semi-active RFID chip.

Preferably, the controller for selecting a specific rod section can use a method for determining wear of a rod of an earth boring device or a device for determining wear of an earth boring device, as is shown, for example, in FIG EP 3 444 433 A1 known to work together. The control can thus be functionally connected to the control of the earth drilling device and/or the drive of the earth drilling device in order to track or store the wear of the rod sections. Carry the mentioned alternatives considering that the control can also be designed as part of the control of the earth drilling device. In this respect, a functional connection also includes that there is an identity or partial identity in the hardware between the controller and the controller of the earth drilling device.

If it is described that a specific rod section is "selected", this means that the term not only means an active and/or constantly made selection of a specific rod section, but also that rod sections are selected according to a predetermined sequence, for example via the position where the rod sections are stored in the rod magazine can be selected. In this respect, a selection of a specific rod section is also to be equated with an order in which the rod sections present in the rod magazine are gripped, for example on the basis of their position. In this context, a selection is also the processing of a predetermined sequence of rod sections at predetermined positions in the rod magazine. In this context, a "select" refers to a concrete special access to individual rod sections in a predetermined order specified by the controller. With regard to the selection in the sense of a predetermined order, it can be taken into account in particular that the rod sections are arranged in the drill rod in the reverse order to the storage or storage of the previous earth borehole when carrying out a ground borehole. For example, the first rod section of the previous well can be used as the last rod section of the drill rod of the subsequent well. The second rod section of a previous earth well can be used as the penultimate rod section in the subsequent earth well.

In addition to or in addition to processing a predetermined sequence, the rod sections can be selected by the controller according to at least one of the parameters, ie the borehole parameter and/or the rod section parameter. The selection can be made not only according to a predetermined sequence, but also spontaneously, for example by reacting to currently existing drilling parameters (the determined feed force of the drive). The currently available machine data of the drive of the device can indicate, for example, increased stress on the drill rods, which means that, taking into account the corresponding drilling parameters, one or more specific rod sections are selected that do not yet exceed a predetermined wear limit. A specific rod section can thus be selected on the basis of a (current) drilling parameter. The controller can, for example, select rod sections in which current conditions of the earth drilling can also be taken into account--possibly harsh conditions that were not expected. In addition to the one or more drilling parameters, at least one pipe section parameter, in particular, which is associated with wear and tear, must be taken into account. As such, a combination of well parameter(s) and rod section parameter(s) can provide a basis for selection.

Provision can be made for the type of selection with regard to the criterion or the dependency according to which a specific rod section is selected to be able to change during the creation of an earth bore. This allows you to react flexibly to different circumstances. For example, a drill string in a phase of earth drilling may be selected according to a predetermined order. In a further phase of the earth drilling, the criterion for the selection can change and the predetermined sequence can be deviated from, and a selection can be made as a function of the at least one drilling parameter and/or the at least one rod section parameter.

The rod section parameters can be assigned to the individual rod sections in the rod magazine in such a way that one or more rod section parameters is/are stored for a position in the rod magazine and is/are assigned to the respective rod section. The assignment can be done in such a way that the controller, for example in the form of a memory that maps an assignment table, which rod section is located at which position in the rod magazine. The information associated with the rod section in the form of one or more rod section parameters can then be provided via the identification of the rod section. Nevertheless, alternatively or additionally, it can also be provided that the information on the rod section, i.e. the one or more rod section parameters, is assigned directly to the position in the rod magazine. If the rod section is rearranged in the rod magazine or moved to a different position, the respective assignments are changed.

In a preferred embodiment, the controller is configured to relocate rod sections within the rod magazine using the transfer device in order to access a specific rod section using the transfer device and/or to optimize the positions for rod sections to be selected next. This makes it possible for a specific rod section to be freely selected, for example a rod section which is not arranged at the top of a compartment but is located below at least one other rod section. A high degree of flexibility can be made possible in this way.

The relocating may be performed during a period of time that the drive of the auger is driving the drill string further into the ground or pulling it out of the ground. The rearrangement can take place in the form of a sorting, which puts the rod sections in the rod magazine in a predetermined order or sorted arrangement, this arrangement can be done in particular according to at least one of the two drilling parameters and rod section parameters. Sorting can, for example, allow optimal access to the least worn linkages. The sorting can take into account the extent of a state of wear as a rod section parameter for the rod sections and calculate an optimal storage or arrangement in the rod magazine in the form of a position for the respective rod section. The rearrangement to achieve the optimal storage can be optimized with regard to the fewest steps to be carried out (relocation processes).

The sorting can take place when storing a rod section, for example when pulling in the drill rod (particularly after reaming). As a result, a frequently and/or heavily used rod section can be sorted downwards in the rod magazine instead of lying in a compartment at the top and "blocking" the rod sections underneath for access. The rod section sorted downwards - unless it is sorted again for access upwards - can therefore only be used after the other rod sections lying above it and in particular only when the other rod sections in the rod magazine have reached a similar or worse state of wear as rod section parameters . While the drive pulls the drill rods further out of the ground, the last section of rods pulled out of the ground can be sorted or stored in the rod magazine in an optimized manner.

The rod sections in the rod magazine can also or alternatively be sorted when the earth boring device is started up or started. Even in this state, the time can be used sensibly to optimize the position of the rod sections in the rod magazine.

The sorting and/or optimized storage of a rod section can thus be carried out parallel to the start-up and/or movement of the drill string, so that the sorting and/or optimized storage does not impair the actual drilling of the earth bore or extraction of the drill string. This leads to a high utility value for the operator.

In a preferred embodiment, the controller is functionally connected to a memory in which information relating to one or more rod section parameters is stored with assignment of the respective rod section. This makes it possible to track that a corresponding parameter is linked to the rod section.

The term "functionally connected" in the sense of the description includes a connection, in particular unidirectional or bidirectional, of the device mentioned, in order in particular to provide signals from one of the devices, in particular the controller, and to receive them with the other device, in particular the memory, and/or process received signals. The functional coupling can take place directly or indirectly through the interposition of further elements or devices. The term "functionally connected" also includes the configuration that the controller has the memory in its hardware component, ie the memory is at least partially integrated in the controller.

In a preferred embodiment, the controller is functionally connected to a detection unit, which is designed to detect information relating to one or more rod section parameters. For example, the controller and/or the controller of the earth drilling device can be functionally connected to a detection unit that has a reading device with which the information stored on a memory element on a rod section can be read out regarding one or more rod section parameters. For this purpose, the detection unit can be designed to be active, i.e. it reads out the data stored in a passive memory element. Alternatively, the reading device can also interact with active storage elements that send the desired values to the reading device. The detection unit can be controlled by the controller of the earth drilling device or by the controller and, for example when filling the rod magazine, can read out the information relating to one or more rod section parameters. For example, the controller or the controller of the drilling device can then be informed of the position at which the rod section, from which the information regarding the rod section parameter(s) was read, is stored in the rod magazine. An association can thus be made as to the position in the rod magazine at which a rod section with the respective rod section parameter or respective rod section parameters is present. The association can be mapped in a memory that the controller and/or the controller of the earth drilling device can functionally access.

It can also be provided that when filling the rod magazine, the individual rod sections are fed to the rod magazine in the order in which the positions in the rod magazine are numbered or indexed. Before being stored in the rod magazine at the next position, the respective rod section can be fed to the detection unit and the information can be read out and stored in a memory for the respective position in the rod magazine.

It is also possible for an operator to assign the identifier of a rod section, which is located in the rod magazine, to a position in the rod magazine. The operator can enter an identifier for a position in order to specify information for the selection of the respective rod section in an assignment, which is or can be stored in a memory, to a position in the rod magazine.

The invention also provides a transfer device of an earth boring device. The transfer device can be arranged on an earth drilling device having a drilling carriage. The drill rig defines a drill string axis. Furthermore, a rod magazine for a plurality of rod sections can be arranged on the earth drilling device, which rod magazine is designed for a horizontal arrangement of the rod sections in compartments arranged next to one another. The transfer device has at least one pick-up device with which the rod sections in the rod magazine can be accessed from above. The transfer device has a controller that is designed to select a specific rod section present in the rod magazine as a function of at least one drilling parameter and/or at least one rod section parameter.

The invention also provides a controller for a transfer device of an earth drilling device, wherein the transfer device can be arranged on the earth drilling device having a drill carriage, the drill carriage defining a drill rod axis, and a rod magazine for a plurality of rod sections can also be arranged on the earth drilling device. The rod magazine is designed for a horizontal arrangement of the rod sections in compartments arranged next to one another. The transfer device has at least one pick-up device with which the rod sections in the rod magazine can be accessed from above. The controller is designed to select a specific rod section present in the rod magazine as a function of at least one drilling parameter and/or at least one rod section parameter.

The invention also provides a method of earth drilling with an earth drilling device. The method includes the step of using a controller to select a specific rod section from different rod sections that are lying in a rod magazine and arranged side by side in compartments, depending on at least one drilling parameter and/or at least one rod section parameter, in order to work with the selected specific rod section to drill the earth bore further into the ground according to the course.

The invention will be described in terms of several aspects relating to an earth boring device, a transfer device, a controller and a method. The explanations on the individual aspects complement one another, so that the explanations for the earth drilling device are also to be understood as explanations of the description for the transfer device, the control and the method. The description of the earth drilling device also discloses actions in terms of the method or method steps relating to the earth drilling method, which apply correspondingly to the earth drilling method.

The above statements, like the following description of exemplary embodiments, do not represent a waiver of certain embodiments or features.

The invention is explained in more detail below by way of example using one of the exemplary embodiments illustrated in the figures.

Fig. 1

eine schematische Darstellung einer Erdbohrvorrichtung; und

Fig. 2

ein Ausführungsbeispiel eines Ablaufdiagramms für eine Auswahl eines Gestängeschusses im Gestängemagazin.

In the drawings shows:

1

a schematic representation of a Erdbohrvorrichtung; and

2

an embodiment of a flowchart for a selection of a rod section in the rod magazine.

In the 1 a Erdbohrvorrichtung is shown schematically in an isometric view. The main components of the earth drilling device are a rod magazine 1 with a large number of different rod sections 2 stored therein, a drill carriage 3, only part of which is shown, and a transfer device 4, with which the rod sections 2 are removed from the rod magazine 1 and moved to a position along the drill rod axis can be positioned on the drill carriage 3.

The part of the drill rig 3 shown comprises a base support 5, above which the individual rod sections 2, which are provided for connection to the free end of the drill rod that has already been drilled (not shown), are positioned. Two rails 6 are provided on the base support 5 of the drill carriage 3, on which a drive carriage (not shown) is movably mounted. The drive carriage can be driven by means of a hydraulic motor 7 arranged at the end on the base support 5 .

A rotary drive (not shown) is provided on the drive carriage, which is used on the one hand to drive the drill rods in rotation during the drilling thrust, and on the other hand is provided for screwing the rod section 2 to be newly attached to the free end of the drill rod that has already been drilled. For this purpose, the rotary drive, whose drive shaft is provided with an external thread at the front, is screwed into the threaded bush arranged on the rear of the rod section 2 and then the front end of the rod section 2, which has a corresponding threaded bolt, is brought up to the free end of the drill rod and into the threaded bush of the last rod section 2 of the drill rod screwed in.

The construction and functioning of such drill carriages 3 are sufficiently known from the prior art. For example, the DE 199 53 458 C1 a corresponding drill rig, the relevant content of which is incorporated by reference into the content of the present patent application.

The Erdbohrvorrichtung has a controller 10, which is schematically in the form of a machine control of the Erdbohrvorrichtung in 1 is shown. In this case, the controller 10 of the earth drilling device is identical to the controller for the transfer device 4, by means of which a rod section 2 can be removed from the rod magazine 1 or placed in it.

Command sequences can be processed in the controller 10 of the earth drilling device, which enable a specific rod section 2 to be selected from the rod magazine 1 .

In the 2 a flowchart is shown as an example, which enables a selection of a rod section 2 in the rod magazine 1 . A wear associated with the rod section 2 is taken into account as a criterion for the selection of the rod section 2 in the rod magazine 1 . By means of the command sequence carried out by the controller 10, which is indicated by the flowchart in 2 is shown, a rod section resulting in balanced wear can be selected. In addition, rearrangement or sorting can be carried out in order to determine an optimized position for the rod section 2 in the rod magazine 1 .

In the 2 the controller 10 is shown, by means of which an algorithm or a command sequence for selecting or sorting rod sections 2 in the rod magazine can be carried out. To this extent, the controller 10 can select an optimal rod section 2 for balanced wear.

In step S1, the controller 10 controls the transfer device 4 for storage. In this respect, the controller 10 transmits commands with which the transfer device 4 is accessed. The access of the controller 10 to the transfer device 4 can carry out a storage of a rod section 2 in the rod magazine 1 by means of step S2. In step S3, the transfer device 4 can select or automatically select an optimal rod section 2 . The selection can be displayed to an operator. The operator can confirm that the rod section 2 is pulled in at step S4 or the rod section 2 is drilled at step S5.

Unless in the 2 two columns are shown, the difference is that in the left column, ie steps S1, S3 and S5, a pilot hole, ie a hole is drilled into the ground, in which the drill rod can be pushed. Steps S2 and S4 involve an expansion bore, ie the drill rods are generally moved in the ground while pulling.

For the selection in the pilot bore, the transfer device 4 can be controlled in step S6 for resorting or rearranging the rod sections 2 in the rod magazine 1 . In step S7, re-sorting can be performed using the transfer device 4. When storing the rod section 2, which is described in principle in step S2, an optimal position can be calculated in step S8 based on the consideration of the criterion “state of wear” as a rod section parameter. The position can be optimized in such a way that rod sections 2 that are not worn are not blocked by worn rod sections 2 in the rod magazine 1 .

Claims (8)

1. Earth drilling device with a drill mount defining a drilling rod axis, a rod magazine (1) for a plurality of different rods (2) and a transfer device (4) for transferring a rod (2) between the rod magazine (1) and the drilling rod axis, wherein a control (10) of the transfer device (4) is configured to select a particular rod (2) in the rod magazine (2) according to at least one drilling parameter or/and at least one rod parameter, characterised in that the rod magazine (1) is configured for a horizontal arrangement of the rods (2) in compartments arranged next to each other for grasping from above by means of the transfer device (4), and the rod magazine (1) is configured such that the rods lie together on top of one another with two rods respectively in direct contact.
2. Earth drilling device according to claim 1, characterised in that the control (10) is configured to select rods (2) in the rod magazine (1) in a predetermined order.
3. Earth drilling device according to claim 1 or 2, characterised in that the control (10) is configured to relocate rods (2) inside the rod magazine (1) by means of the transfer device (4), so as to grasp a particular rod (2) by means of the transfer device (4).
4. Earth drilling device according to one of claims 1 to 3, characterised in that the control (10) is configured to sort the rods (2) in the rod magazine (1), in particular (a) in a period in which the drilling device loads the drilling rod with tension or compression or (b) in a period in which the earth drilling device starts up.
5. Earth drilling device according to one of claims 1 to 4, characterised in that the control (10) is functionally connected to a memory, in which an item of information concerning one or more rod parameters is stored on allocating the respective rod (2).
6. Earth drilling device according to one of claims 1 to 5, characterised in that the control (10) is functionally connected to an acquisition unit, which is configured to acquire an item of information concerning the at least one or more rod parameters.
7. Earth drilling device according to one of claims 1 to 6, characterised in that the control (10) is functionally connected to the control of the earth drilling device and/or the drive of the earth drilling device, so as to monitor or to store the wear of the rods (2).
8. Method for earth drilling with an earth drilling device, wherein by means of a control (10) a rod (2) from different rods, which are arranged horizontally and next to each other in compartments in a rod magazine (1), is selected according to at least one drilling parameter or/and at least one rod parameter, wherein the rods lie together on top of one another in the rod magazine (1) with two rods respectively in direct contact.

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