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
  • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
  • E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B7/00—Special methods or apparatus for drilling
  • E21B7/04—Directional drilling
  • E21B7/046—Directional drilling horizontal drilling

Definitions

• the invention relates to an earth drilling device for inserting a drill string into the ground by rotating, pushing and/or pulling, as well as a method for monitoring an area in an earth drilling device for inserting a drill string into the ground by rotating, pushing and/or pulling.
• Earth drilling rigs are regularly operated by several people.
• one operator is required in a control station, usually a cabin, to monitor the area around the drilling rig and its immediate surroundings. This is especially important for monitoring the drill string where it exits the rig and enters the ground. Monitoring this area is essential because the drill string, moving with considerable force, can pose a danger to anyone nearby.
• a detection device configured to detect the end of the drill string (a) in the area of the earth drilling device and/or (b) in the area of a target pit of the borehole to be drilled. It is described that a signal from the detection device is transmitted to a display device, thus indicating a "response" from the detection device on the display device. It can be provided that, as soon as the detection device has detected an object entering the area and/or movement within an area, an image from a camera is displayed on the display device.
• the object of the invention is therefore to create an earth drilling device and a method with which the effort required to drill an earth borehole using the earth drilling device can be reduced, in particular the effort in the form of requiring a smaller number of operating and/or monitoring personnel. Alternatively or additionally, the monitoring process can be simplified for the operator.
• a key concept of the invention is to provide a monitoring device designed to detect the presence and/or movement, particularly of a person, within the area of the earth drilling device. Furthermore, when the monitoring device detects a potential hazard due to presence and/or movement in this area, it displays a corresponding representation of the hazard or the area posing a danger to the operator or machine operator on a screen. The operator previously performing the monitoring does not need to be in or near the area where the hazard could occur or has occurred. Using the display, the user can view the section of the drill string from which a hazard could emanate and, for example, verify that no hazard exists before restarting the earth drilling device, without having to enter the monitored area.
• the operator controlling the earth drilling rig can remain remotely from the rig, either at the drilling site or in the target pit.
• the earth drilling rig can be brought to a safe state, for example, by disengaging the drive from the drill string, and an image of the drill string in the affected area can be displayed.
• a sufficiently large area can be provided for this image, while further information about the operation of the earth drilling rig is displayed to a lesser extent or not at all.
• the entire display area can be used to show the image of the area. This allows for safer, faster, lower-cost, and/or less-intensive drilling. Added value for the company using the earth drilling rig is possible.
• a synergistic effect results from the monitoring device and the display, leading in particular to simpler and safer machine operation.
• the use of a monitoring device and display can ensure that the operator is (initially) not distracted from the actual task of monitoring machine functions, but can also sound an alarm in case of danger and stop hazardous or dangerous movements (e.g., rotation, feed, clamping), especially by means of a safety control system, and can thus prevent A good, and especially large, display of the area to be monitored or the hazardous area is required.
• the area to be monitored does not need to be constantly displayed, but only after/when the monitoring device is activated.
• a monitoring device can be provided on the earth drilling rig. This device can be switched between two ranges or opening angles with respect to the monitoring range and/or solid angle, in order to meet different requirements.
• the monitoring device enables monitoring for potential hazards to persons, which should be carried out as safely as possible, it allows for adjustments that can be modified according to the specific design of the area being monitored. Despite this adjustability, safe use of the monitoring device is possible, as adjustments can only be made with qualified authorization.
• the earth drilling rig can be used in different environments. It may be possible to exclude obstacles from the monitoring. This adjustability allows for safer and more flexible construction of the earth drilling rig. This additional aspect also provides further or alternative benefits for the company using the earth drilling rig.
• the invention provides an earth drilling device for rotating, pushing and/or pulling the insertion of a drill string into the ground, with a control unit, in particular a remote control, for controlling functions of the earth drilling device, and a monitoring device for monitoring the presence and/or movement, in particular of a person, in an area between the entry of the drill string into the ground and the exit of the drill string from the earth drilling device, and in particular in the area of a clamping, wherein the monitoring device has at least one sensor, the signal(s) of which is/are used to send a signal to a display in the event of the presence and/or movement, in particular of a person, and thus to trigger an adjustment of the display.
• the monitored area can include any area where potentially hazardous or dangerous movements (such as rotation, feed, or clamping) may occur.
• a potentially hazardous movement could be the movement of the drill string, thus encompassing the area between the drill string's entry into the ground and its exit from the drilling rig.
• the area can also include any area where the drill string is clamped, as clamping can also potentially cause hazards.
• a potential hazard to a person may arise.
• a synergistic or simplifying effect has been identified by the ability to meaningfully group potential hazards or sources of danger that need to be monitored.
• a detection zone, monitoring zone, or virtual safety fence can be established or defined on both sides along the longitudinal axis of the drill string or perpendicular to the clamp using the sensor(s).
• arranging one or more sensors in the clamp area can be advantageous.
• a first sensor oriented towards the point where the drill string enters the ground, can be positioned laterally in the clamp area, and another sensor, oriented towards the drilling rig, can be positioned laterally in the clamp area to "shield" the drill string from potential hazards or detect when a person enters a defined detection zone.
• the term “monitoring device” encompasses a device designed to monitor the presence and/or movement, in particular of a person, in an area between the point where the drill string enters the ground and where it exits the drilling rig, and in particular, where an edge area along the drill string can be monitored.
• the area on both sides of the drill string can be monitored by means of a sensor with a substantially vertically oriented detection area.
• the area containing the drill string can be monitored by means of a detection area designed as a screen above the drill string, with the detection area being substantially horizontally oriented.
• a substantially vertically oriented detection area can be combined with a substantially horizontally oriented detection area.
• the area containing the drill string can, in particular, be monitored in such a way that an entry point into the monitored area of the drill string is detected and presence and/or movement in this area can be detected.
• the monitoring device can define one or more detection zones in which presence and/or movement, particularly of a person, can be detected.
• the monitoring device makes it possible to control access to or intervention in the entry zone and/or detection zone, ensuring that elements of the earth drilling device that could endanger a person remain within the detection zones and/or entry zones. In particular, it can protect a person from elements of the earth drilling device that could potentially endanger their health if they come into contact with them.
• Elements of an earth drilling device that could potentially endanger a person's health include the drill string (outside the ground) and a clamping device that secures the drill string, at least partially, to the section already drilled into the ground.
• the drill string can become clamped during a rod change.
• the clamping can also occur within the drilling rig itself, and the passage of the drill string from the rig potentially allows access to the clamp. Therefore, monitoring this area is also important.
• essentially vertically oriented encompasses, in the context of this description, an orientation that has a greater extent in the vertical direction than in the horizontal direction.
• essentially horizontally oriented encompasses, in the context of this description, an orientation that has a greater extent in the horizontal direction than in the vertical direction.
• the detection area(s) defined by the monitoring device may include one or more "virtual safety fences" around the drill string and/or the drill string clamp.
• the virtual safety fence(s) can be considered the entry point to the monitored area, and detection can occur when presence and/or movement is detected at the safety fence or within the entry point.
• a detection area may be essentially bounded at its end by the drilling rig or the sensor mounted on the drilling rig.
• a detection area may extend essentially parallel to the drill string. It may be provided that several detection areas complement each other in such a way that the monitored area is essentially closed in one plane. It may be provided that the monitored area is surrounded at its edges by detection areas and potentially by obstacles that are generally insurmountable, such as the drilling rig.
• the detection area(s) can begin above ground level at a height of 10 cm, preferably at a height of 20 cm, most preferably at a height of 30 cm, and extend vertically in the direction of the acceleration due to gravity.
• the detection range(s) can be widened, such that, particularly in a top view during intended use, the detection area is narrower in the vicinity of the sensor than at a distance from it.
• This widening can be described by one or more opening angles of the sensor, whereby, when multiple opening angles are specified, the specified opening angles refer to the extents in the vertical plane(s). It can be provided that an opening angle in the vertical plane is in the range of 15° to 25°, particularly preferably in the range of 17° to 23°, and most preferably 20°.
• the sensor can be inclined with the opening angle to the horizontal, particularly to the horizontal. It should be tilted upwards and aligned so that the largest possible detection area can be achieved.
• Presence encompasses a sensor activation, i.e., the receipt of a signal.
• a positive detection or sensor activation is recorded, and a sensor signal can indicate that "something" is present or has been detected within the detection range.
• the procedure can be such that, upon switching on the monitoring device and the earth drilling rig, the operator verifies that the area to be monitored or the detection range(s) are clear before drilling.
• movement encompasses a change such that the sensor(s) can be designed for motion detection.
• a person's approach to the drill string can be detected based on a sequence of signals from the sensor(s) covering detection areas at varying distances from the drill string, if first a signal is detected relating to a detection area further away from the drill string and then a signal is detected in a detection area closer to the drill string.
• the term "sensor” encompasses a sensor capable of monitoring an area or (entry) and/or protected space.
• the sensor can be configured to monitor a specific area, particularly a predefined one, in such a way as to detect the presence of a person and/or object within that area.
• a primary or output signal at an interface (especially between gaseous and solid) within the area, with the detection of such a reflection being interpreted as the presence of a person and/or object.
• the sensor can, in particular, detect electromagnetic or acoustic radiation or waves that are reflected and/or emitted by a person or object within the area.
• the sensors are laser sensors, ultrasonic sensors or other, in particular similar, optical or acoustic sensors, especially imaging sensors, or hybrid forms thereof.
• one of the sensors is designed as a radar sensor.
• Radar sensors are generally well protected against external influences such as dust, dirt, rain, light, or vibrations (harsh environments) and are therefore suitable for use in monitoring a drilling rig.
• Sensors designed to monitor a (spatial) area or detection zone can typically define an area or (protected) zone due to their design. The area or (protected) zone can depend on the sensor's position, height, and tilt, and/or how it transmits and/or receives signals.
• a sensor as described can typically transmit a so-called primary signal, in particular as a focused electromagnetic wave, and can receive the echo reflected by objects as a secondary signal. The presence of a secondary signal can be sufficient to detect presence within the detection zone.
• a "controller" can evaluate a signal from the sensor; for example, a controller can evaluate the primary and/or secondary signal according to various criteria.
• a sensor designed to detect the tilt of the earth auger allows the sensor for monitoring the protected area to adjust its detection range and/or opening angle. Generally, a greater tilt of the earth auger necessitates a reduced detection range.
• the sensor can assist the user in setting the range and/or opening angle by displaying the tilt of the earth auger and/or a range and/or opening angle appropriate to that tilt. Alternatively or additionally, the sensor can automatically adjust the range and/or opening angle without user intervention. For automatic adjustment of the range and/or opening angle – without user intervention – a control unit can use the tilt sensor to detect the tilt of the earth auger.
• the tilt sensor can provide signals corresponding to the tilt of the earth auger, and based on predefined parameters for selecting the range and/or opening angle when a tilt is detected, the control unit can adjust the range and/or opening angle directly or indirectly.
• the control unit which can be connected to the tilt sensor, can also be connected to the controller for the sensor(s) and therefore make the adjustments.
• control unit for the sensor is included in the controller, i.e., the control unit can be part of the controller. It is also possible that the sensor for the tilt of the earth drilling device is part of or integrated into the controller. Alternatively, the control unit can be part of the control unit of the earth drilling device and/or the sensor for detecting the tilt of the earth drilling device can be separate.
• the term “sensor” also includes a motion detector, which, as an electronic sensor, detects movement in its immediate vicinity and sends a signal upon detection. Therefore, a “sensor” can alternatively or additionally be understood as a sensor that operates using electromagnetic waves (RF, microwaves, or Doppler radar) or ultrasound (ultrasonic motion detector) (emitting and/or receiving). Alternatively or additionally, the "sensor” designed as a motion detector may also be implemented as a pyroelectric infrared sensor (PIR sensor), which operates passively based on the infrared radiation emitted by a person and the surrounding environment.
• PIR sensor pyroelectric infrared sensor
• the term “sensor” encompasses a radar sensor, which may be designed to have variable detection range and/or detection range.
• the sensor particularly when designed as a radar sensor, may be intelligently designed to monitor an adjustable detection area.
• the “monitoring device” as described may also include one or more “controllers” functionally coupled to the sensor(s), which evaluate the sensor signal and/or control the sensor(s).
• a “controller” that may be present can be considered an evaluation unit and/or setting unit, for example, for setting the detection range of the sensor(s).
• the term "area between the point where the drill string enters the ground and the point where it exits the drilling rig” encompasses the section of the drill string that lies both outside the drilling rig and outside the ground. This "area between the point where the drill string enters the ground and the point where it exits the drilling rig” may also include the area where the drill string is clamped, for example, during a drill string change.
• the earth drilling device typically comprises a carriage and a drive element.
• the carriage stabilizes the earth drilling device.
• the term "carriage" as used in the invention This includes any type of frame, rack, or support suitable for stabilizing an earth auger. The auger can be aligned more precisely using the carriage, and recoil can be reduced if necessary.
• the drive element can impart movement to the drill string.
• the drive element can be part of a "drive unit.”
• the drive unit can be designed as a linear drive or a rack and pinion drive.
• the drive unit can incorporate hydraulic cylinders as a drive source.
• the drill string is still largely enclosed by the drilling rig and not directly accessible to a person. Further along its length, the drill string exits the drilling rig and enters the surrounding soil. This area can be monitored for potential hazards. As described, the area itself can be monitored directly or indirectly via adjacent or peripheral access points or entry points that at least partially surround the drill string area.
• the signal(s) of at least one sensor of the monitoring device are used to send a signal to a display upon the presence and/or movement of a person, thereby triggering an adjustment of the display
• the signal from the sensor(s) can be used directly (direct signal transmission) to trigger the display adjustment and/or achieve a safe state for the earth drilling device.
• the signal from the sensor(s) can be evaluated and/or modified, for example, amplified, in order to then use a different or modified signal (indirect signal transmission) to trigger the display adjustment and/or achieve a safe state for the earth drilling device. Indirect signal transmission can be achieved by means of a safety controller.
• safety control encompasses a control system functionally coupled to the earth drilling device and the monitoring device, in particular the controller(s), which, upon “response” from a sensor or the monitoring device (indicated by a signal from the sensor and/or the controller), brings the earth drilling device into a safe state.
• the earth drilling device can be brought into an operating state in which the drill string is not driven by the motor.
• the safety control system can be implemented by a controller that monitors the sensor(s) with regard to their response and/or their settings.
• the "safe state" of the earth drilling rig can be a standby state, a quiescent state, or a switched-off state (in which restart via the control unit is possible).
• the safety controller can be a mobile controller capable of performing safety-critical functions via an operating system.
• the safety controller can be located within the earth drilling rig. For example, an output of a radar controller can be connected to an input of the safety controller, and as soon as an alarm is triggered, the outputs of the safety controller can be used to bring the electrical and hydraulic components of the earth drilling rig into a state that prevents further danger from the earth drilling rig or the drill string.
• the safety control system can be configured to send a signal to the earth auger, in addition to bringing it into a safe state, so that the earth auger emits haptic feedback, an acoustic and/or visual indication.
• a horn and/or a flashing beacon on the earth auger can be activated.
• the haptic feedback can be output via an input device for the operator.
• an operator-operated element, particularly a control stick can be subjected to a vibration and/or other haptically perceptible movement or a movement lock.
• the monitoring device or at least one sensor can be switched off or deactivated, for example, to carry out work directly on the earth drilling rig and/or to change tools. Switching off the monitoring device or at least one sensor may be limited to an operation in or on the operator's cab or the cabin of the earth drilling rig, to ensure that the operator wishing to switch off or deactivate it is present at the earth drilling rig and can see the area that is otherwise monitored by the monitoring device.
• the term “functionally coupled” as used in this description encompasses a connection, particularly a unidirectional or bidirectional one, for the purpose of exchanging signals, especially for mutual transmission and reception.
• the term “mutual” also includes the simultaneous transmission and reception of a controller, device, or the like. Functional coupling can be achieved directly or indirectly through the interposition of further elements or devices.
• an “earth drilling device” is any device which, in particular, includes a drill string with rod sections in an existing or a channel to be created, in particular in the ground, to create or enlarge a borehole, especially a horizontal borehole (HD), or to insert pipelines or other long bodies into the ground.
• the earth drilling device may, in particular, be an HD device.
• the term "HD" (horizontal drilling) as used in this description includes, in particular, a borehole, channel, or pipeline to be installed that is at least partially horizontal.
• An earth drilling device can thus be a device that drives a drill string, displacing soil and inserting the drill string into the ground translationally and/or rotationally in the longitudinal axial direction of the drill string.
• a borehole can be created in the ground by applying tension or compression to the drill string, whereby the drill string can also be rotated.
• drill string as used in this description comprises several interconnected sections of drill string.
• a drill string which may have a drill head and, if present, a drill bit at its front end (which may be designed as a drilling tool, for example, a reamer), is used to perform an earth drilling operation.
• rod assembly does not exclusively include rigid, individual force transmission elements that can be connected directly or indirectly to one another and that can be used in an earth drilling device.
• a rotation or torque to the drill string is understood to mean any rotation, even a partial full rotation, thus also including rotations where the drill string only needs to be turned around its longitudinal axis by an angular range of less than 360°.
• the rotation can be continuous in one direction around the longitudinal axis. It is also possible for the direction of rotation around the longitudinal axis to be reversed.
• control unit encompasses any electrical or electronic device capable of converting an operator's input into an electrical signal that can be transmitted to a control unit of the earth drilling device, either without further processing or with intermediate signal processing, in particular processing in one or more circuits, such as an amplifier, in order to serve as input or input signal for the control unit.
• the control unit can be understood as the interface between an operator and the control unit.
• the control unit may include a portable power supply, in particular in the form of one or more batteries, accumulators, or similar devices.
• the control unit may, in particular, include a processor designed as an arithmetic unit with electronic circuits to execute instructions.
• the processor is programmable and configured to process instructions.
• the control unit may have an operating system that can be modified, for example, to improve and/or adapt to changes in an earth drilling device. Modification of the operating system may only be permitted if a password is enabled and/or the control unit is connected to a computer interface, a dongle, or similar device.
• the processor may recognize, query, process, forward, and/or execute further instructions from a program by recognizing operator input in the form of parameters.
• the processor may execute a program that queries or receives operator input, processes the operator input, configures settings for the operator input, transmits the input to the control unit, and/or receives, processes, and/or converts signals from the control unit.
• a “remote control” as defined in this description comprises an electrical or electronic handheld device suitable for controlling the operation of the earth drilling device by entering a parameter while operating from a distance.
• "at a distance from the earth drilling device” is to be understood as meaning that direct input via a device attached to the earth drilling device is not necessary.
• an operator outside the operator's cab of the earth drilling device can control its operation by entering a parameter.
• the remote control be designed as a wireless remote control, i.e., without a cable between the operating unit and the earth drilling device during operation.
• the operating unit it is also possible for the operating unit to be designed as a wired remote control.
• control unit encompasses a control system that enables the directed manipulation of the earth drilling device during operation, i.e., while drilling, or for starting or stopping an earth drilling operation.
• the control unit may be electrically or electronically designed. Parameters entered by the operator to control the functions of the earth drilling device can be used by the control unit—optionally converted and/or processed into electrical signals—as inputs for the operation of the earth drilling device.
• the earth drilling device can thus be operated or controlled by means of a parameter input, which may have been converted into an electrical signal.
• a “parameter” is understood to be an input that allows for the directed control of the operation of the earth drilling device, enabling the control or execution of a specific function.
• the parameter can be transmitted as an input signal to the control unit, which then uses this signal to control the operation of the earth drilling device.
• a parameter can trigger the start or stop of drilling with the earth drilling device.
• An operator can, for instance, enter the parameter "Start,” and a corresponding input signal is transmitted to the control unit, causing drilling to begin.
• an operator can enter the parameter "Stop,” and a corresponding input signal is transmitted to the control unit, causing drilling to stop.
• Other parameters that influence or modify the operation of the earth drilling device or its functions are also possible. These parameters can be entered by an operator, converted into an input signal by the control unit, and transmitted to the control unit.
• Entering at least one parameter can involve (a) setting the torque and/or speed applied to the drill string of the earth auger, (b) setting the linear feed force and/or linear feed rate applied to the drill string, (c) setting the impact frequency of a percussion piston, (d) setting the impact amplitude of a percussion piston, (e) setting the flow rate and/or pressurization of a drilling fluid, (f) performing a drill string change, (g) performing drill string lubrication, and/or (h) changing the drill head type.
• the type of drill string can be taken into account.
• the torque and/or speed can be selected independently for the inner tube, so that for a twin-tube drill string, both the torque and/or speed can be set for the inner and/or outer tubes.
• This allows essentially any input relevant to the drilling operation of the earth drilling rig to be made.
• the aforementioned parameters can be transmitted to the control unit.
• the control unit can transmit a signal to the drive of the earth drilling device, which is connected to the drill string, depending on the parameter entered by the operator via the control unit, so that the torque/speed selected by the operator is applied.
• the parameter can be a signal corresponding to the magnitude of the torque/speed.
• Setting the linear feed rate of the drill string can adjust the force or pressure and/or speed with which the drive acts on the drill string connected to the drive. Adjusting the linear feed rate can also include whether the linear feed is a pulling or pushing force, i.e., whether the drill string is pulled or pushed through the soil.
• the term "feed rate” encompasses both directions, pulling and pushing the drill string, so that a tensile or a pushing force can be applied to the drill string.
• the parameter can therefore be a signal corresponding to the tensile or pushing force.
• drilling fluid particularly in the form of bentonite, can be used.
• the drilling fluid can be guided through the drill string and exit at the front of the drill string.
• a flow rate/pressure of the drilling fluid can be set as a parameter, which can be adapted to the conditions in the ground.
• This parameter can thus be an action corresponding to the command "Change drill string now.”
• the drill string already in the ground can be clamped to fix its axial and/or angular position.
• entering the parameter may involve changing the drill head type, which may be particularly necessary if, after performing a pilot bore, i.e., a first bore created, for example, by pushing in the ground, the drill head type is changed to a reaming drill head, which is pulled through the previously created pilot bore to ream it.
• the control unit can have at least one mechanically actuated actuator.
• the mechanically actuated actuator can be any type of mechanically or manually operated actuator.
• a rotary knob, a control stick, and/or a push button are preferred embodiments of a mechanically actuated actuator.
• Different types of actuators are possible on the control unit. Several identical actuators can be provided on the control unit.
• a control stick is an actuating element for inputting signals, particularly two-dimensional ones.
• a control stick can have an element extending from a surface, which typically divides into several sections. The element can be tilted in various directions. It can be designed in a rod-, stamp-, club-, or lever-shaped manner. The element can extend from a surface to a height not exceeding 7 cm, preferably 6 cm, preferably 5 cm, preferably 4 cm, preferably 3 cm, preferably 2 cm, or preferably 1 cm. The diameter of the element can be less than 5 cm, preferably 4 cm, preferably 3 cm, or preferably 2 cm.
• a control stick as described above can also be called an analog stick or joystick and can be functionally equivalent to these.
• control stick also includes a directional pad with which two-dimensional signals can be entered.
• the control stick can generate a signal that depends on the position of the element or the directional pad relative to a standard or rest position of the element or the directional pad.
• the control stick can be configured to deliver individual electrical signals when actuated and/or to continuously deliver an electrical signal in the form of voltages and/or currents, with one potentiometer being used for each of the dimensions in which the element or control pad can be tilted; for example, one potentiometer for the up/down position and one potentiometer for the left/right position. Changing the position or orientation of the control stick's element or control pad relative to its rest or standard position can change the voltage.
• the size and/or arrangement of the control stick on the operating unit can be designed to allow operation by a user's thumb and/or finger, in particular, operation of the control stick without gripping it. If it is stated that the control stick is designed to generate signals depending on a movement in at least two dimensions, this also includes the possibility that an input for controlling the operation of the earth drilling device by means of a control stick may be provided, in which the control stick does not generate any signals with regard to movement in one of the dimensions and/or signals with regard to movement in one of the dimensions are not taken into account by the control device or do not need to be taken into account.
• a rotary control or knob as described may incorporate a potentiometer or be formed by one. Advantages of these rotary controls are that they are essentially maintenance-free and insensitive to vibrations; furthermore, turning the rotary control when it is switched off may have no effect.
• a push button is an actuating element that can be designed as an assembly, establishing or breaking an electrically conductive connection.
• the push button can be designed as a toggle switch or a simple push button. It has been found that an actuation stroke of at least 2 mm is advantageous for a push button to be considered a "deliberate" actuation. Actuation strokes of more than 2 mm are preferred. than 2.3 mm, whereby actuation strokes of more than 3 mm, preferably more than 5 mm, particularly preferably more than 6 mm, and even more preferably more than 7 mm may be provided when using gloves.
• the diameter of a push button it has proven advantageous that the diameter of the push button should be more than 5 mm, particularly more than 7 mm, for actuation by a finger of an operator.
• the diameter of a push button can advantageously be more than 15 mm, preferably more than 17.5 mm, and particularly more than 20 mm.
• a selection of mechanically actuated operating elements can be provided on the control unit.
• operating elements commonly used in the prior art can be employed to allow the operator the usual input method for controlling the earth drilling device.
• the size and/or arrangement of the operating elements can vary compared to the prior art; in particular, a control stick on the control unit can be smaller than a multifunction joystick located in the operator's cab.
• display can refer to a display device for showing the status of the earth drilling equipment.
• the display may show one or more of the parameters mentioned above.
• the display may show an input dialog that prompts or assists the operator in entering one or more parameters, for example, by visualizing the operator's input.
• control unit and the display can be a single unit, allowing the operator to hold a control unit with an integrated display.
• the control unit and display can be two separate units or entities.
• the display can be integrated into a recess in the control unit.
• the control unit can have a transmitter and the display a receiver.
• the display also allows input, it can have a transmitter and the control unit a receiver.
• the display can be configured to process signals and/or display them.
• the control unit can have transmission means configured to transmit signals to the display, which is configured to process the signals so that they can be displayed for the operator.
• the transmission of the signal(s) between the control unit and the display can be direct. It may also be provided that a signal is supplied to the display that masks the signal from the control unit and allows something to be displayed on the display that is not provided by the control unit.
• the display device can be used to retrieve and/or display essentially all, in particular all, of the aforementioned parameters for the operation of the earth drilling device.
• the display can be designed such that not all parameters are shown simultaneously, but rather one or more parameters are displayed depending on the operator's input. The operator can select these parameters for display, or they can be selected by a sequence of commands from the control unit for the execution and/or input of a parameter.
• the display device includes a control unit that can be configured for context-sensitive information display.
• a control unit that can be configured for context-sensitive information display. This allows the display device to be coupled to the operating unit in such a way that when the operator enters or wishes to enter a parameter using the operating unit, related parameters, data, information, and/or instructions are displayed on the display device.
• the control unit can display the value of a parameter for the operation of the earth drilling device, information related to the parameter, and/or instructions for its setting when relevant to the operator and/or when the operator wishes to enter or change such a parameter. For instance, if the operator enters a parameter using the operating unit, the control unit can display the parameter being influenced or changed by the operator, even during the change or entry process.
• control unit can communicate with the control unit, and for at least one piece of information, a parameter value, a message, and/or an error message to be displayed on the display device.
• the control unit of the earth drilling rig can inform the control unit for display when a drill string needs to be connected to the drilled section to continue drilling.
• states of the earth drilling rig that require operator action can be displayed.
• a "display” is any device that can visualize a signal.
• the display may be, in particular, an electrical or electronic display, specifically a liquid crystal display (LCD), light-emitting diode (LED) matrix display, luminescent display (VFD), or similar.
• the display may enable the presentation of an image, particularly one that is intuitively understandable.
• the display may be a universal display device in the form of a screen, monitor, display, tablet, notepad, iPad, or smart display.
• the display should be designed for a smartphone or similar device. It should allow for the visualization of at least one parameter of the earth drilling device during operation. The operator can carry the display with them.
• the display may, in particular, include a processor designed as an arithmetic unit with electronic circuits to execute instructions.
• the processor can be programmed and is configured to process instructions.
• the display may include an operating system that can be modified, for example, to improve and/or adapt to changes in communication with the control unit or to a specific display. Modification of the operating system may only be permitted if a password has been entered and/or the display is connected to a computer interface, a dongle, or similar device.
• the processor can recognize, query, process, forward, and/or execute further program instructions from user input in the form of a query specifying which parameters, and possibly in which format, should be displayed.
• the processor can execute a program that queries or receives user input, processes the user input, and then, if necessary, displays the parameters and/or signals after retrieving parameters from the control unit and/or signals from the control unit.
• the display may include a portable power supply, in particular in the form of one or more batteries, accumulators, or similar devices.
• the display can allow the input of parameters, functions, and/or changes to the display itself. If the display has a touchscreen, for example, this input can be made by touching, tapping, swiping, or similar means. Alternatively or additionally, input can also be made to the display using an integrated device or an additional connectable device (e.g., via cable and/or wirelessly, such as via Bluetooth).
• the integrated or additional device can be a mechanically actuated element (e.g., a push button, a rocker switch), a keyboard, a mouse, a trackball, a graphics tablet, a microphone, a camera, or a similar input device, particularly in the form of a peripheral device commonly used in computers, enabling keystrokes, typing, audio (speech), and/or video (gestures, movements, or similar).
• a mechanically actuated element e.g., a push button, a rocker switch
• a keyboard e.g., a mouse, a trackball, a graphics tablet, a microphone, a camera, or a similar input device, particularly in the form of a peripheral device commonly used in computers, enabling keystrokes, typing, audio (speech), and/or video (gestures, movements, or similar).
• the power supply for each individual component can be smaller than the other.
• a power supply is required for the combined power supply of the control unit and display.
• the power supply of a standard display can be used.
• the term "adjustment” or “adaptation” of the display refers to a change in the displayed content. Specifically, this change occurs when the display no longer shows content corresponding to the input on the control panel, but rather an image from a projection device that depicts at least part of the area between where the drill string enters the ground and where it exits the drilling rig.
• the safety control system can be designed to adjust the display in addition to bringing the drilling rig into a "safe state.” Thus, in a hazardous situation—in the presence and/or movement of a person—the display can be automatically adjusted by showing an image of the aforementioned area.
• an "adjustment” or “adaptation” of the display is designed in such a way that the display is used to show only one image of the imaging device. It may be provided that the display, particularly in a uniform area, shows only one image of the imaging device during an "adjustment” or "adaptation”.
• the operator can be actively involved in the process of recognizing a danger or a possible false triggering of the monitoring device.
• the safety controller can send a signal to the control unit, providing the operator with a further visual or audible indication that the monitoring device has detected a hazardous situation.
• a further visual or audible indication For example, an audible buzzer or a warning light can indicate the hazardous situation at the control unit.
• operator input at the control unit may be reduced to acknowledging the emergency and/or restarting the earth drilling device once the hazard has passed. It may be possible to log both the activation of the monitoring device or safety control and the operator's acknowledgment of this activation.
• the earth drilling device can only restart if the monitoring device fails to respond or trigger for a minimum period, which may be predetermined and, in particular, may be 4 seconds, and only if the operator additionally enables or inputs a restart command on the control unit. The expiration of the minimum period can be indicated on the control unit and/or display, so that the operator knows when a restart is possible.
• the safety controller which received the release signal, can restart the drilling direction and reactivate the display and control unit for the operator to input and view the parameters for operating the earth drilling device.
• an “imaging device” encompasses any device designed to capture an image of an area to be recorded.
• the area to be recorded can be represented by one or more signals. It is possible that the imaging device is designed as a camera that generates an image of the area to be recorded.
• a “camera” is any device that captures an image of an area, which can then be displayed, in particular, on a screen.
• the screen can display the signals or information from the camera, at least on a portion of the display unit.
• the signals can be displayed directly or processed by the control unit of the display unit and/or the control unit of the earth drilling device before being displayed.
• the at least one sensor can be designed as a radar sensor, and the monitoring device is connected to a safety controller for evaluating a signal from the sensor, and the at least one sensor is switchable between at least two ranges and/or at least two opening angles.
• Switching between ranges and/or opening angles can only be done with a key switch, which preferably logs the operation.
• switching between ranges and/or opening angles can be enabled alternatively or additionally by entering an authorization code known to the user (example of "knowledge” that the user has).
• a chip card or other electromagnetically readable element e.g., RFID chip
• a reader that can interact with the chip card or other electromagnetically readable element, either contactlessly or with contact.
• Reading via a reader is another example of "possession" held by the user.
• an optical imaging device in particular a camera, is provided, which is arranged to detect the area between the entry of the drill string into the ground and the exit of the drill string from the earth drilling device, wherein the imaging device is also functionally coupled with the display in order to display an image detected by the optical imaging device on the display.
• control unit and the display are combined into a portable unit.
• the display and control unit can be handled as a single unit by the operator.
• the display allows for a representation on an area of at least 50 cm2 . It is further preferred that a representation be displayed on an area of at least 60 cm2 , or that such a display be provided. It is further preferred that a representation be displayed on a A display area of at least 70 cm2 , in particular at least 75 cm2 , and preferably at least 80 cm2 , is required. This allows the area to be monitored to be displayed in a sufficiently large size. The size of the display enables a detailed representation with sufficient contrast and/or resolution.
• the display and the control unit are designed such that the display is arranged in a recess of the control unit. This allows the display to be protected within the control unit.
• the safety control when the earth drilling device is switched on or started up, is configured to set the sensors to their maximum range and/or largest opening angle. This counteracts incorrect settings that would result in insufficient protection against the hazards emanating from the drill string. A response from the monitoring device upon switch-on is acceptable in order to reduce the risk of incorrect settings.
• a switch actuated by an actuator, is provided for changing the range and/or opening angle, and the control unit is configured to receive a request for acknowledgment. This prevents the range or opening angle from being unintentionally changed.
• Other switching options mentioned in the description are possible.
• the at least one sensor is arranged on a support of the drilling device.
• the sensor can be located on a component of the drilling device that, due to its function, remains stable and as vibration-free as possible during operation.
• the sensor(s) can be arranged on a support located in the front region of the drilling device. If multiple sensors are provided, two sensors can be located on one support, with both sensors having a detection area that includes a component or portion extending along the drill string and running alongside it. One of the sensors can be arranged such that its detection area faces the drilling device. The other sensor can be arranged such that its detection area faces the point where the drill string enters the ground.
• the support can preferably be arranged in the area of an anchor trough, which is used to both stabilize the earth drilling device and collect drilling fluid.
• the safety controller has a multi-channel, in particular a two-channel, input configured to carry a signal indicating sensor activation.
• a high level of safety function or classification can be achieved.
• a safety controller is configured to forward signals from the monitoring device to the control unit.
• the safety controller can bring the earth drilling device into a safe state in which the drill string poses a reduced risk to persons on the drill string.
• the invention also provides a method for monitoring an area of an earth drilling device for rotating, pushing, and/or pulling the insertion of a drill string into the ground, wherein the drill string runs in an area where it exits the earth drilling device and enters the ground, and in particular in the area of a clamping point, and where presence or movement, in particular of a person, in the area is monitored, wherein a control element, in particular a remote control, is used to control functions of the earth drilling device, and wherein a monitoring device is used which has at least one sensor, wherein the safety control is connected to the monitoring device and, upon detection of presence and/or movement, in particular of a person, a signal is sent to a display to trigger an adjustment of the display, wherein the adjustment makes it possible to provide a sufficiently large display for mapping the area, in which further information on the operation of the earth drilling device is displayed in a reduced manner or not at all.
• the at least one sensor is switched with respect to its range and/or its opening angle as needed.
• the invention is described in relation to an earth drilling device and a method.
• the descriptions of the individual aspects or embodiments of the earth drilling device and the method complement each other, so that the descriptions of the earth drilling device are also to be understood as descriptions of the method.
• the description of the earth drilling device also discloses actions within the meaning of the method or process steps relating to the method.
• a numerical value in particular a length or angle specification, includes not only the actual numerical value, but also – in order to take into account manufacturing tolerances in particular – a range around the specific numerical value, which may be +/- 15%, preferably +/- 10%, of the specified numerical value.
• FIG. 1 shows a schematic representation of an earth drilling device 1, with which an earth borehole can be drilled into the ground 3.
• the earth drilling device 1 has a carriage 16 and/or is arranged on the carriage 16.
• a drill string 2 is inserted into the ground 3 and moved within it.
• the earth drilling device 1 is designed for rotating, pushing, and/or pulling the drill string 2 into the ground 3.
• the already drilled drill string 2 can be clamped by means of a clamp 15, which is shown schematically for illustrative purposes only.
• a control unit 4 is provided for operating the earth drilling device, which is designed as a remote control for controlling functions of the earth drilling device 1.
• the Fig. 2 which shows an enlarged view in the area of a support 5 with an anchor trough 20, shows sensors 6, 7 of a monitoring device 8 for monitoring presence and/or movement, in particular of a person, in an area between an entry of the drill string 2 into the ground 3 and a Exit of the drill string 2 from the earth drilling device 1 and the clamp for the drill string 2, particularly for use during a drill string change.
• the signal from sensors 6, 7 is used to send a signal to a display 9 upon the presence and/or movement of a person, thereby triggering an adjustment of the display 9.
• FIG. 2 The opening angles 11, 12 of sensors 6, 7 with respect to the vertical plane are shown with dashed lines.
• the sensors 6, 7 can be varied with respect to their range and/or the Fig. 2 (and Fig. 3 ) opening angles 11, 12, 13, 14 shown schematically can be switched.
• the display 9 is part of the remote control 4.
• the display 9 can alternatively and/or additionally be designed as a separate element to the remote control 4.
• An optical imaging device 10 in the form of a camera is provided, which is arranged to detect the area between the entry of the drill string into the ground and the exit of the drill string 2 from the earth drilling device 1 and the clamping, wherein the imaging device 10 is also functionally coupled with the display 9 in order to display an image detected by the optical imaging device 10 on the display 9.
• Fig. 3 shows the representation of Fig. 2 in a top view.
• the sensors 6, 7 arranged on the two supports 5 with the opening angle 13, 14 running in the horizontal plane are shown with dashed lines.

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• Engineering & Computer Science (AREA)
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• Geology (AREA)
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• Physics & Mathematics (AREA)
• Environmental & Geological Engineering (AREA)
• Fluid Mechanics (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Mechanical Engineering (AREA)
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• 2022
  • 2022-10-21 DE DE102022127921.9A patent/DE102022127921A1/de active Pending
• 2023
  • 2023-10-20 EP EP23204875.1A patent/EP4357582B1/de active Active
  • 2023-10-20 US US18/490,910 patent/US20240247567A1/en not_active Abandoned
  • 2023-10-20 PL PL23204875.1T patent/PL4357582T3/pl unknown
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• 2025
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