EP2558682A2 - Système de communication permettant la transmission d'informations par l'intermédiaire de tiges de forage - Google Patents

Système de communication permettant la transmission d'informations par l'intermédiaire de tiges de forage

Info

Publication number
EP2558682A2
EP2558682A2 EP11735590A EP11735590A EP2558682A2 EP 2558682 A2 EP2558682 A2 EP 2558682A2 EP 11735590 A EP11735590 A EP 11735590A EP 11735590 A EP11735590 A EP 11735590A EP 2558682 A2 EP2558682 A2 EP 2558682A2
Authority
EP
European Patent Office
Prior art keywords
drill
drill pipe
drill string
electronics
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11735590A
Other languages
German (de)
English (en)
Other versions
EP2558682B1 (fr
Inventor
Peter Jantz
Klaus Hartmann
Wolf-Henning Twelsiek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universitaet Siegen
Original Assignee
Universitaet Siegen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universitaet Siegen filed Critical Universitaet Siegen
Priority to PL11735590T priority Critical patent/PL2558682T3/pl
Publication of EP2558682A2 publication Critical patent/EP2558682A2/fr
Application granted granted Critical
Publication of EP2558682B1 publication Critical patent/EP2558682B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/028—Electrical or electro-magnetic connections
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency

Definitions

  • the invention relates to a communication system for the transmission of
  • Information about drill pipe of a drill string for earth bores comprising a first drill pipe, one or more second drill pipe and a drill drive, wherein the first drill pipe and the second (s) drill string each consist of a hollow cylindrical
  • Drill pipe is formed with at least one axially extending line and with an upper end and a lower end, the lower end of the first drill string a receptacle for a
  • each of the second drill string with its lower end to the upper end of the first drill string or another second drill string rotatably connected and with its upper end to the lower end of another second drill pipe or with the
  • Drill drive is rotatably connected, wherein a sensor and / or actuators are to be transmitted from or to the measurement, parameterization, status and / or control data at the lower end of the first drill string and / or on the drill head is / are, wherein the data is transmitted or received along the drill string to or from a communication unit on or in the drill drive which is interfaced with a surface computer
  • Wells for gas, petroleum or geothermal exploration are typically 30 cm in diameter and approximately 2 km / 1, 5 mi in length. These holes are drilled using drill strings made from relatively light, jointed, jointed drill pipes of 9.14m / 30ft or 13.72m / 45ft in length. As the drilling progresses, additional drill string at the upper borehole end is added to the drill string. At the lower drill hole end of the drill string is usually a drill shank, the dead weight of which corresponds to the normal drill string strung together to 300 m /1,000 ft in length.
  • the chisel shaft is equipped with a drill bit. Due to the weight of the assembly and the rotating drive of the drill string from the surface, the drill bit digs into the soil. Sometimes too
  • Drilling mud motors or drilling mud turbines used for the drill bit drive. Mud or air is supplied from the surface through an axial bore of the drill string of the drill bit. This fluid removes the erosion from the wellbore over the hollow cylindrical space between the outer boom wall and the borehole wall.
  • the gases of the soil formation are monitored or sometimes applied a cooling for the drill bit.
  • the drill string results from the desire to automatically maintain a given direction of advance. This is especially important in mining deep drilling with a drill pipe supporting the drill pipe and a rotatably mounted on this and provided with guide rails and Anpress Swissen outer tube. Also a drill pipe for full and
  • Target boring bars stabilizers or centering and guiding devices installed. These are rods with attached
  • Target boring bars that correspond to the outer diameter of the drill diameter and, following the penetrating drilling tool, this concentrically.
  • Target boring bars have a built-in automatic vertical control that predefines and / or corrects the drilling direction by utilizing the force of gravity and using the pressure of the flushing liquid. For straight holes both after Full and core drilling, even with lengths up to 100 m, direction measurements are required in between to drill the hole
  • Holes include horizontal, vertical and oblique holes.
  • Corresponding measuring devices are, for example, as
  • Tilt sensors such as inclinometer, deflectometer or pendulum meter. Equally important is the transmission of measured values from sensors of other detection variables, i. other physical quantities.
  • the European patent application EP 1 213 440 A1 provides a 'method for transmitting information about a drill pipe' and a
  • each rod of the drill pipe a coaxial, electrically conductive inner pipe for the carriage of the under pressure
  • a first coil arrangement for inductive coupling in the vicinity of the closing, lower end of the drill string is located in the annulus , the inner line enclosing, and a second coil for inductive decoupling in the vicinity of the upper end of the linkage in the same arrangement.
  • a battery-powered sensor located near the drill near a battery-powered sensor whose signal is amplitude-processed and frequency-processed fed to the first coil, transmitted and received by the second coil and processed.
  • the coils are reversible usable as transmitting and receiving coils.
  • a further transmitting coil in the vicinity of the coil 2 and a further receiving coil in the vicinity of coil 1 is provided.
  • the arrangement represents electrically a coaxial line, consisting of an inner conductor, a cylindrical insulating layer and an outer conductor.
  • the quality of the transmission is material, medium, speed, length, amplitude and frequency dependent.
  • European Patent Application EP 468 891 A1 discloses a force measurement arrangement for a drill pipe with a device for
  • Radio transmission ' which is firmly connected to a rotatable shaft A sensor and a first electronic circuit for the preparation of the signals provided by the sensors, wherein the signals are conducted to a stationary detection unit, which is remote from a fixed mounted on the rotary shaft radio transmitter and the apparatus also has a radio receiver for the reception of of the
  • Detection unit has transmitted signals and that the radio receiver has means for parameterizing or for regulating the measuring device in response to the signals sent by the detection unit.
  • the sensors of the force measuring device are installed over days, as well as the radio link, so that remains as a technical feature of the rotating radio source and the stationary sink.
  • European Patent Application EP 1 915 504 A1 discloses a 'Bidirectional Drilling and Borehole Measurement and Drilling Control System' comprising a drilling rig with a derrick and a hook and pivot for the drill string, a rig
  • Mit surgeriestange a pump for the drilling fluid, which is conveyed from a pit via the rotary joint in the interior of the hollow cylindrical drill pipe and pushed over the drill bit emerging between Bohrstrang- outer wall and hole as drilling mud, with an electronics equipment below the pivot, the wirelessly communicates on the one hand with the construction site control and control computer and on the other hand with the surface participant of the drill string, the one forming a drill pipe interconnect, wherein the linkages are wired along their length (Wired Drill Pipe (WDP)) and each have at their respective end an inductive coupling to a next linkage, depending on the length of the drill string
  • WDP Wireless Drill Pipe
  • BHA bottom hole assembly
  • LWD logging while drilling
  • MWD measurement while drilling
  • the wired, inductively coupled linkages extending from the surface to the interface subscriber form the drill string telemetry system.
  • Construction site computers are transmitted and in another example by means of a wireless transmission.
  • the linkages are each equipped with two cable pairs, with the adapter connected between the linkages providing an inductive coupling between the two pairs of lines.
  • Screw-connectable hollow cylindrical drill pipe electrically insulating coated on the inner peripheral surface to then experience an electrically conductive coating on the cylindrical insulating surface.
  • the process is continued with a further insulating layer on the conductive layer and a further conductive layer on the last applied insulating layer, so that are located under a hollow cylindrical insulator to the pipe inner wall of the linkage two electrical hollow cylindrical conductors.
  • Another measure is taken at the transition point of two drill pipes such that outwardly electrically insulated and fluid-sealed, internally provided with electrical conductors connector the isolated electrical path of each such linkage with the isolated electrical path of the corresponding adjacent linkage electrically connects. This is also done over the electrically conductive hohizylindrförmigen layers across multi-layered, so that at least one isolated
  • Telemetry system and a telemetry method to communicate information along a drill string The information of a sensor in the drill bit is modulated with the aid of a transmitter and a transmitter coil on a carrier signal and transmitted from a first position via the drill string medium to high frequency to a second position, received and demodulated by a receiver and a receiver coil and in
  • Drilling information can be captured directly affecting the quality of the bore and the life of the drill head device by knowing the current temperature of the engine mounts and the current
  • Object of the present invention is to provide a novel device for
  • a communication system for transmitting information about drill string of a drill string for earth bores comprising a first drill pipe, one or more second drill pipe and a drill drive, wherein the first drill pipe and the second (s) drill pipe each consist of a hollow cylindrical drill pipe with at least one axially extending pipe and having an upper end and a lower end is / are formed, the lower end of the first drill pipe a receptacle for a
  • each of the second drill string with its lower end to the upper end of the first drill string or another second drill string rotatably connected and with its upper end to the lower end of another second drill pipe or with the
  • Drill drive is rotatably connected, wherein the communication system further comprises:
  • a sensor system and / or actuator system to which the measurement, parameterization, status and / or control data are to be transmitted and which are / are arranged at the lower end of the first drill string and / or on the drill head,
  • a first communication unit and a drive-side electronics both of which are arranged on or in the drill drive and connected to one another,
  • a surface computer for monitoring the borehole, which communicates with the drive-side electronics and receives or provides the data of the sensors and / or actuators;
  • the communication units are radio modules, and each of the communication units is configured to transmit and / or receive the data to the immediately adjacent communication unit of the next drill string or auger drive.
  • the basic idea of the present invention is a
  • Wired transmission will be a wiring within the
  • Drill used, whereas the respective ends of the drill string mutually facing radio transmission modules are arranged, which bridge only the connection distance between each other. This will be a reliable, trouble-free and effective
  • Borehole data can be collected in real time (real-time) and during drilling operations (on-line) and transmitted to the surface computer without the ground formation or other environmental conditions at the borehole affecting the quality of the data transmission.
  • the communication system according to the invention is versatile and offers an on-line and real-time measured value transmission path for
  • Drill string data, drill head data and / or Bohrkronen flowers wherein the sensors for detecting the measurement data as close as possible in the immediate vicinity of the drill head and / or the drill bit, preferably even on the drill head and / or the drill bit.
  • the term drill bit is understood to mean that part of the borehole bottom end of a drill string which has the cutting elements digging into the ground, while boring head comprises the overall arrangement at the lower end of the drill string first drill pipe comprising a drill head, auger or drill bit and corresponding connection means to the drill pipe.
  • sensors and / or actuators in addition to the arrangement on
  • Drilling head also in or on at least one other drill pipe
  • the drillstring may be mounted to receive information from various positions along the drillstring, i. Receive sensor measurement and / or status data or parameterization and / or control data to sensors or
  • Transfer actuators which are located in different locations of the drill string.
  • Important sensors are pressure or temperature sensors.
  • Actuators can be valves, motors or pumps.
  • the communication system is simple and maintenance-free, and the installation and commissioning of technically trained personnel on site possible. It can be used in many ways, especially in areas of
  • Drilling technology for deep engineering such as mud drilling, pile drilling and in-situ soil mixing technology with the three applications Deep Soil Mixing (DSM), Shallow Soil Mixing (SSM) and Backhoe Stabilization ( BOSS).
  • DSM Deep Soil Mixing
  • SSM Shallow Soil Mixing
  • BOSS Backhoe Stabilization
  • the in-situ Soil Mixing process is characterized by the fact that the goal is soil compaction and soil stabilization, in which the soil is loosened by drilling or milling, during the drilling or milling
  • Milling draft already introduced an application-specific suspension, added at the high gear in addition to the suspension cement and mixed with the soil / soil and optionally subsequently solidified with iron piles.
  • the usual support structure and excavated soil deleted. Depths of up to 55m are processed, with the correct
  • Pile drilling does not incur drilled holes as part of "in-situ soil mixing" technology, especially for perpendicular measurement, but the measurement of perpendiculars during on-line and real-time propulsion is imperative.
  • a twin-auger or double-auger drive is used with two counter-rotating tools, which ensure the best possible mixing of the soil / soil.
  • mechanically adjustable guide carriage allows the change of the center distance of the drive motors of 500 mm ... 1100 mm, whereby the production of resolved, tangent or overcut
  • the individual drill rods in the axial direction in one or more pairs (WDP) so that there is at least one electrical line between the two ends of a drill pipe which can be used for data transmission from one end to the other.
  • the electrical line can eino in a relatively thin tube, which extends at least partially on the hollow drill pipe in the manner of a cable channel, preferably on the inside, axially parallel to this.
  • Drill end is the quality of data transfer regardless of the length of the drill string.
  • the power supply is preferably formed of batteries so that it is self-sufficient and no external supply of a current for the
  • the power supply and / or the electronics can be arranged approximately in the axial tube center of a drill pipe. This causes the same cable length to be present in both directions, so that attenuation effects or other parasitic effects in data transmission and power supply in both directions of transmission are symmetrical.
  • At the ends of the drill string is at least one of the
  • Radio-controlled communication unit which are designed either as a transmitter (transmitter) or as a receiver (receiver) or as a combined transceiver unit (transceiver). Such transmitters, receivers and combined
  • Transceiver unit are commercially available and will not be further described below. If only one unidirectional data transmission is required, the use of transmitters and receivers as data modules is sufficient, wherein at one end a drill string is arranged a transmitter and at the other end a corresponding receiver and the
  • Drill rods are mounted to each other so that at the
  • junction a transmitter of a drill string opposite a receiver of the other drill string.
  • Communication is achieved when a transmitter and a receiver are placed at each end of a drill pipe. This can be in separate Communication units take place or alternatively in the mentioned
  • the communication units are therefore arranged according to the invention so that in unidirectional transmission direction from the borehole bottom to
  • Transmitter / receiver units done. This has the advantage that no type distinction of the drill string and no
  • the electronics within a drill string controls the data transmission from one communication unit to the other communication unit or to the sensor / actuator system. It can serve as an amplifier and signal conditioner for the data to be transmitted.
  • the electronics contains a microcontroller for this purpose.
  • each linkage has one
  • Inclination sensor to detect the state of the respective
  • Drill pipe on it can be determined by means of the inclination sensor, whether the corresponding drill string is in a horizontal position, for example, at the storage location, or in a vertical position, for example in the case of its use.
  • a tilt sensor for example, a simple mercury switch, alternatively a gyrosensor or one or more acceleration sensors can be used.
  • the inclination sensor can also be arranged approximately at the axial center of a drill pipe.
  • the tilt sensor can be used as a switch for power supply. For this purpose, it is preferably connected to the power supply and configured to supply the power to the electronics and to the communication unit (s) at a transition of the drill string from a horizontal attitude condition to a vertical attitude condition
  • Microcontroller and the wireless modules turns on.
  • Compensation measures such as Magnetic switch can be provided in each drill pipe to turn on the power supply despite substantially horizontal positional state of the corresponding drill string and to activate the electronics, or to change the logic of the tilt switch.
  • the power supply can be rechargeable.
  • the batteries may be formed by rechargeable batteries.
  • charging can basically take place in the case of a permanently installed power supply.
  • the drill pipe is connected together with its mounted power supply via charging cable to a charging station.
  • the power supply removable on or in
  • the recording electrical Plug contacts via which the power supply to the electronics and / or with the communication units is connectable or is connected.
  • the charging process may be carried out at a local stationary charging station or with a mobile charging device operating on the basis of a wireless energy transfer method known in the art, e.g. 'Wireless energy transfer by means of closely coupled magnetic
  • the drill pipe may have means for automatically recharging the power supply during operation of the drill pipe. A removal of the
  • Such a means may for example be a turbine which drives an electric generator and from which into the interior of the
  • Drill pipe pressurized introduced medium e.g. Rinse water, a suspension or cement
  • An alternative means is a Seebeck element which generates a voltage from a temperature difference between the medium introduced into the drill string and the drilling mud which can be used to charge the power supply.
  • the energy supply preferably has at least one optical and / or acoustic means for displaying the state of charge, the remaining capacity and / or the supply duration still available.
  • a charge status indicator serves the charge control. In this case, both the actual state of charge can be displayed, as well as a prediction of the capacity state of the rechargeable storing
  • the drill pipe of each drill string can have at least one
  • the recess Have electronics and / or one of the communication units.
  • the recorded power supply, electronics and / or communication units of the surrounding the drill pipe media is isolated.
  • the recess may be provided on the outside of the drill pipe, in which case it is formed by a steel bag.
  • the recess may extend into the interior of the drill pipe, so that no projecting parts are present on its lateral surface. The exact arrangement of the recess over the
  • Linkage length can be adapted to the accessibility.
  • Plug contacting the power supply, the electronics and / or one of the communication units. Also, sensors and / or actuators can be or are connected to the power supply and / or the electronics via the plug contacts.
  • a communication unit is inserted in a recess of the drill pipe, it is protected by the drill pipe, respectively by the wall delimiting the recess.
  • a communication unit is inserted in a recess of the drill pipe, it is protected by the drill pipe, respectively by the wall delimiting the recess.
  • Communication unit of a drill string but also have a robust, especially metallic housing, with which they outside the
  • Drill pipe is mounted.
  • the communication unit is thus more accessible.
  • the housing has a
  • plastic or ceramic closed opening, which is directed towards the outer edge of the end, where the
  • a communication unit rests in a recess of the drill pipe of a drill pipe, this can also be a by a
  • non-metallic material such as plastic or ceramic
  • closed opening which is directed towards the outer edge of the end on which the corresponding communication unit is arranged.
  • the power supply and the electronics structurally form one unit.
  • the electronics can thus be made compact and does not need to be cabled separately to the power supply.
  • the handling of the drill pipe facilitates thereby and the effort for the
  • a drill string for each communication unit may have electronics, wherein the communication unit and the electronics can each structurally form a unit.
  • a drill pipe for each communication unit may have a power supply, wherein communication unit and power supply structurally form a unit.
  • a communication unit, an electronics and a power supply together form a structural unit, so that apart from the drill pipe receiving drill pipe at each drill string only two components to be arranged and connect via the electrical line.
  • the first drill pipe forms a first end of the drill string and has near the drill head, the sensors for the measured and
  • the communication unit is arranged, at least one electronics with a microcontroller, and at least one power supply for the communication units and the electronics are present, wherein the communication unit and the
  • Sensors and / or actuators are connected to each other via the electrical line and the electronics data technology between the sensors and / or actuators and the communication unit is located, and the
  • Communication unit is a radio module, wherein the communication unit is adapted to data to an immediately adjacent
  • the sensor system is thus connected to the electronics of the first drill string via the single or multi-pair electrical line and transmits the measured values as electrical signals analog or digital via this line.
  • the first drill string can in its axial center a rechargeable storing
  • the first drill pipe Have power supply and a tilt sensor as a power switch for the electronics and the radio module.
  • the first drill pipe has power supply and a tilt sensor as a power switch for the electronics and the radio module.
  • the second or each second drill pipe forms a
  • An intermediate drill pipe which is mounted between the first drill pipe comprising the drill head and the drill drive. For this purpose, it is positioned on the surface side opposite the first end of the drill string and mounted on the first drill string and the drive. It forms a drill pipe for a drill string for earth bores for the construction of the communication system according to the invention, with a
  • hollow cylindrical drill pipe having an upper end and a lower end, and having at least one lying between the upper and the lower end electrical line which is guided to the two ends, wherein the lower end with the upper end of another drill string rotatably connected and the upper end with the lower end of another drill string or with a drill drive rotatably connected, wherein at both ends at least one
  • Communication unit arranged, at least one electronics with a microcontroller, and at least one power supply for the
  • Communication units and the electronics are present, wherein the communication units are connected to each other via the electrical line and the electronic data technology between the
  • Radio modules are where each of the communication units is adapted to transmit data to and / or receive data from an immediately adjacent communication device of the next drill string or auger drive.
  • the or a second drill pipe has a receiver (receiver) or a combined transmitter / receiver unit (transceiver) at its lower end, relative to its vertical arrangement, a likewise one or more paired electrical line via the linkage, and as an example in the axial center of a
  • the second drill string has at least one radio transmitter or a combined transmitter / transmitter.
  • Receiver unit for bidirectional data transmission, wherein the transmitter or transceiver over a radio link with the communication unit of the drill drive, connected to the latter
  • the electronics as well as the surface computer connected to the electronics of the drilling site is in data connection and primarily transmits the sensor data from the drill head environment unidirectionally.
  • the communication system according to the invention must be bidirectional, so that control data can be transmitted to the actuators.
  • sensors can also be configured dynamically, with
  • Parameter data can be transmitted to the sensors.
  • the drill string or the communication system consisting of wired drill rods and radio links at the linkage connections comprises only two different ones according to the previous explanation
  • BohrkopfgestShe forms and the second and the second drill pipe, the insectsbohrgestShe form.
  • the first drill pipe is characterized by its inclusion of the drill head, a sensor and / or actuators near the drill head and a radio module at one end, whereas the second or each second drill pipe has at least one radio module at each end.
  • sensors and / or actuators are also used in other linkages of the drill string. These linkages provide additional information from these sensors or additionally receive information for their actuators. With the additional information more or more robust information of the total drill string can be determined or determined.
  • a basic idea of the communication system according to the invention is that the radio link between the drill pipes invariably only over the relatively short distance, ie takes place over the length of a linkage connection from an n-th linkage to a (n + 1) -th linkage.
  • the radio link therefore does not exist over the entire length of one or more drill pipes.
  • the radio modules can be set to constant field sizes and field parameters. Regarding this setting there is no
  • the communication units are preferably each at a distance of 15 cm to 20 cm from the outer edge of a
  • Communication units can therefore be set up for near field communication in such a way that their transmitter ranges are less than 1 m, in particular only between 30 and 50 cm.
  • This advantageous embodiment leads to calculable transmission powers between the radio modules, which also allows calculability of the energy balance of the rechargeable storing power supplies.
  • each drill pipe a unique identifier, over which it is identifiable. This allows for a simplification of logistics in the management of the drill pipe.
  • the identifier offers the possibility of being networked or linked to any type of data technology
  • each drill string forms a node in an ad-hoc network, which at the well from the individual
  • Drill rods is built.
  • the electronics together with the communication unit or units connected to it form a network node.
  • An ad-hoc network is a simple wireless local area network (WLAN) networking variant that enables direct peer-to-peer communication without an access point (base station) as an information broker, and works well for small and / or time-limited networks.
  • WLAN wireless local area network
  • Communication units of the communication system can therefore be set up to transmit the data via WLAN.
  • Ad hoc networks work on the basis of the beaconing mechanism (beacon mechanism), in which everyone
  • Node at regular intervals a beacon (radio signal) sends. Each knot knows its neighbors, which it can reach directly. All nodes use the same frequency when transmitting. The entire network structure arises dynamically through self-organization and
  • Network management is distributed among the nodes. There is no central office that controls the network structure and routing, i. determines the route allocation. In each network node, the tables for the route allocation are stored. Each node has a router share
  • Radio portion Due to the mobility of the nodes, the network structure is time-variant. Entry into an ad-hoc network takes place through interaction with other participants.
  • the radio nodes work in an ad-hoc state and are configured according to the international standard IEEE 802.11 ad-hoc.
  • the channel number and the service set identifier (SSID) to be set of each node must be identical.
  • Data, information or signals are passed from network node to network node until they reach their receiver, thus distributing the data load more advantageously than in centralized access networks.
  • the ad hoc network constantly adapts as network nodes move, join or fail. If a network node fails, the network tries to reach the destination node, bypassing the failed node.
  • the identifier can be stored, for example, in the electronics and / or in one or more of the communication units and by the
  • Drill pipe is mounted to the drill drive and the
  • Drill rod arranged communication unit enters radio communication. This presupposes that at least the radio link, preferably also the electronics of the drill pipe, is already supplied by the power supply at least with a quiescent current, i. the power supply is turned on. This can be done automatically via the aforementioned tilt sensor.
  • the triggering of the identification query can be automatic,
  • each drill pipe has an RFID transponder, in particular a passive RFI D transponder, in which the aforementioned or another unique identifier is stored.
  • a proximity sensor with an RFID reading unit, which is connected to the drive-side electronics and is adapted to activate the approach of a drill pipe whose RFID transponder for the transmission of the identifier.
  • the identifier obtained from the RFID reading unit or from the drive-side radio module can then be fed to the electronics of the drill head and from there to the surface computer, which inserts the identifier (ID) of the 'new' linkage into the ad hoc network.
  • the tilt sensor will switch on the power supply and activate the electronics and the communication units, which were previously in a sleep state.
  • the RFI D transponder may be an active RFI D transponder connected to the power supply and configured to turn on the power supply and / or the electronics and
  • Activate communication units when receiving an activation signal receives from the RFID reader unit.
  • the corresponding pipe string then goes from the idle state to an activated state.
  • REST mode a first operating state in which the drill pipes are stored as stacked goods in a storage location in a horizontal position
  • a second operating state (READY mode), in which the linkage pass when they are removed from the stack, transported and erected vertically, and
  • SET mode a third operating state into which the drill pipes pass when between the existing drill string and the drill string
  • a prepared boom is removed from the stack, transported to the nearby well site and erected.
  • the tilt switch which is also supplied with quiescent current in REST mode, switches on the power supply for the electronics when the linkage is moved from the horizontal to the vertical position. Both the horizontal and the vertical position can be defined with a tolerance field in the electronics so that the oblique drilling in the context of
  • the switching causes an unlocking of the electronics in the sense of activating a logic and the flow of a minimum quiescent current into the electronics.
  • Linkage electronics are electrically in a rest state, which can also be referred to as sleep mode, in which it is in a waiting position.
  • the prepared 'new' linkage which is in the quiescent state, is transported to the uppermost linkage of the drill string, which has since been freed from the drill drive, and fitted with its lower end and mechanically bolted to it. Thereafter, the drive rod of the drill drive of the drilling device to the upper end of the 'new'
  • Interrogate linkage By means of this procedure and to the knowledge of the identification of the new linkage and master data, these are transmitted from the drive-side electronics to the surface computer. This can be done via a wireless connection.
  • the surface computer in turn performs a synchronization of all data in such a way that the new
  • Linkage forms a new node within the drill string ad hoc network. With this illustrated procedure are drill pipe
  • Network registered and integrated there, so that each drill pipe within the network forms an individually addressable network node.
  • Fig. 1 Stack of prepared drill string, REST mode
  • Fig. 2 remove linkage from the stack, erect, transport,
  • Fig. 3 Mount linkage between drill string and drive rod
  • Fig. 4 operating principle of the drill string / linkage overall arrangement
  • Fig. 5 Drill pipe as a node in the drill string ad hoc network.
  • FIG. 1 shows a stack 1 of prepared drill pipe 10 in REST mode for a drill string.
  • the individual drill pipe 10 consist of a
  • Drill pipe 11 with the wall thickness 2 have an upper end 13 and a lower end 14, and are in the axial direction one or more pairs wired (WDP), so that two electrical lines 21, 22 are formed.
  • WDP pairs wired
  • Drill pipe 10 have in the axial center of the tube electronics 15 with a microcontroller and a switchable electrical power supply, the at least a pair of the two paired lines 21, 22 are powered, the electronics 15 and the power supply structurally form a unit.
  • a drill string is in each case equipped with a radio-controlled, commercially available transmitter (transmitter) and / or receiver (receiver) or transmitter / receiver unit (transceiver) 17, 19, each having an antenna 8, 20, and which are also powered by the aforementioned power supply.
  • the power supply is rechargeable and fixed or portable.
  • the removal of the pluggable power supply is used for charging and / or recharging the same and is added to the charging receptacle of the linkage after the loading process again.
  • the accommodation of the power supply is protected in steel pockets of the linkage, with electrical connections to sensors, actuators, transmitters and / or receivers in the pockets.
  • a tilt sensor 6 Approximately in the center of the tube is a tilt sensor 6, which switches the power supply depending position. The inclination sensor 16 is rested even in a horizontal position.
  • the drill pipe 10 prepared for the drilling or milling process are available on the stack 1 in REST mode. From the perspective of
  • microcontroller controlled electronics 15 and radio modules 17, 19 a node of a network.
  • FIG. 2 shows, on the right, the drill pipe storage site 1, at which the drill pipes 10 are stacked horizontally. On call, a linkage 3 is removed from the stack 1 and erected. The tilt sensor 16 switches the
  • Inclination sensor 16 thus serves as a switch for the power supply of the electronics 15 and the radio modules 7, 9, wherein at approximately horizontal position of the linkage 10, the power supply is turned off and at about vertical operation or even when leaving the horizontal position the rest status of the power supply for the electronics 15 and the
  • Radio modules 17, 9 is turned on.
  • a further working step follows in which the (n + 1) -th linkage 6 removed from the stack 1 is mounted between the uppermost n-th linkage 5 of the drill string and the clamping jaw 70 of a drill drive 7.
  • the prepared 'new' (n + 1) -ste linkage 6, which is at rest, is transported to the uppermost, n-th linkage 5 of the drill string, now freed of clamping jaw 70 and drive rod 74, and its first placed lower end 14 and mechanically screwed to the upper end 13.
  • the driving rod 74 of the drive 7 of the drilling device is placed on the second upper end 13 of the 'new' linkage 6 and screwed on the clamping jaw 70 also with this mechanically fixed.
  • Mit Economics a proximity sensor 71 is activated, which causes a high-frequency identification (RFID) reader via a transceiver unit (transceiver) 72, to interrogate the identifier (ID) of the transmitter / receiver unit (transceiver) 17 of the second upper end 13 of the linkage 6 opposite to it.
  • RFID high-frequency identification
  • Procedure is the identifier of the arranged in the drill drive 7 electronics 73, which also has a microcontroller to the in direct
  • Radio communication with the drive 7 stationary surface computer 100 is sent, which in turn performs a synchronization of all data such that the new linkage 6 forms a new node within the drill string ad hoc network.
  • Fig. 4 shows the operating principle of the drill string-linkage overall arrangement.
  • the storage site 1 for ready-made drill pipe 10 in the mode REST is shown, while the left side linkage 5, 6, 8, 9 of a drill string from the bottom of the hole to the surface 75, with drive 7 and surface computer 00 shows.
  • the linkage 5, 6, 9, 10 are here as Standard linkage shown
  • the linkage 8 is the first linkage of the drill string and is located at the bottom of the borehole.
  • the drill string 8, 80 has a receptacle for a drill head and in the vicinity of a sensor 81 with various measuring devices, in particular sensors, such as inclinometer, deflectometer, Pendellotmeter or inclination sensor for vertical drilling, and optionally one or more actuators 81st
  • the linkage head ends 13, 14 are each provided with a radio-controlled commercial transmitter and / or receivers or transceivers 17, 19, which are fed via the rechargeable storage power supply and thus arranged in that in unidirectional transmission direction of
  • the linkage 10 at the upper end 13 and lower end 14 have no equal equipment and are directionally stored. If the linkage 10 is designed for bidirectional data transmission and equipped at the ends with combined transmitter / receiver units (transceivers) 17,19, eliminates the position-appropriate
  • the data transmission takes place unidirectionally or bidirectionally, starting for example at the sensor devices 81 of the drill string 80, is always performed on all WDP rods 10 via the wiring from one end 14 of the linkage to the other end 13 and the drill pipe connections, which usually are designed as screw connections, via at least one transmitter (transmitter) and / or receiver (receiver) or combined transmitter / receiver unit (transceiver) 17, 19 from a drill string to safely transfer the next drill pipe over a very short distance.
  • the wireless communication is limited to the transmission from one end 13 of a linkage n to the end 14 of the adjacent linkage n + 1 to about 30 cm to 40 cm with always the same arrangement and always the same environment.
  • the drive 7 is also equipped with an electronics 73 with microcontroller and a radio module 72 as a second, upper end of the drill string and exchanges information with the adjacent, with the Bohr- / Fräsfort Colour changing (n + t) -th
  • the Surface computer 100, 101 permanently connects.
  • the surface computer 100, 101 is responsible for the entire site organization and management, as well as the drill string data acquisition and evaluation, and the boom management and network organization.
  • Fig. 5 shows the drill pipe 10 as a node in the drill string ad hoc network using the example of a drill string with three drill pipes 5, 6, 8. Die
  • Drilling information acquired from the measurement data of the sensor 81 of the linkage 8 during operation is supplied via the drill string line 21 to the transmitter (transmitter) 17 of the lowest drill string 80 (n-1) and transmitted to the receiver (receiver) 19 of the overlying drill pipe 5 (n), and further to the upper linkage 6 (n + 1) and via which the radio module 72 and the electronics 73 in the drive 7 to the surface computer 100, 101st All participants in this information chain are nodes in the drill string ad hoc network, which consists of the permanent
  • Participants "surface computer 100" and “drive 7" consists and the changing participants "drill pipe” 8, 5, 6, which according to the method described above in the self-learning and management process nodes of the Ad hoc network.
  • the drill string network management is also a software component of the surface computer.
  • the communication system according to the invention has a

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Earth Drilling (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un système de communication permettant la transmission d'informations par l'intermédiaire des tiges de forage d'une ligne de forage pour des forages du sol. Le système comprend plusieurs tiges de forage (3, 4, 5, 6, 8, 9, 10, 80) pouvant être reliées les unes aux autres, un mécanisme de commande de forage (7) et un ordinateur de surface (100, 101), au moins les tiges de forage (8, 80) présentant un logement destiné à une tête de forage et un système de capteurs et/ou d'actionneurs vers lequel ou à partir duquel des données doivent être transmises vers ou à partir de l'ordinateur de surface (100, 101). Selon l'invention, chaque tige de forage est constituée d'un tube de forage cylindrique creux (11) comportant au moins une ligne (21, 22) s'étendant en direction axiale ainsi qu'une extrémité supérieure (13) et une extrémité inférieure (14). A chacune des extrémités (13, 14) sont agencées des unités de communication entre lesquelles l'échange de données s'effectue par l'intermédiaire de ladite ligne électrique (21, 22), les unités de communication (17, 19) transmettant des données par radio à chaque unité de communication (17, 19) adjacente de la tige de forage raccordée.
EP11735590.9A 2010-04-12 2011-04-12 Système de communication permettant la transmission d'informations par l'intermédiaire de tiges de forage Active EP2558682B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11735590T PL2558682T3 (pl) 2010-04-12 2011-04-12 System komunikacyjny do przekazywania informacji przez żerdzie wiertnicze

Applications Claiming Priority (3)

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DE102010014706 2010-04-12
DE102010047568A DE102010047568A1 (de) 2010-04-12 2010-10-08 Einrichtung zur Übertragung von Informationen über Bohrgestänge
PCT/EP2011/001826 WO2011128068A2 (fr) 2010-04-12 2011-04-12 Système de communication permettant la transmission d'informations par l'intermédiaire de tiges de forage

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EP2558682A2 true EP2558682A2 (fr) 2013-02-20
EP2558682B1 EP2558682B1 (fr) 2018-09-19

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US (1) US9982529B2 (fr)
EP (1) EP2558682B1 (fr)
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PL (1) PL2558682T3 (fr)
WO (1) WO2011128068A2 (fr)

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Also Published As

Publication number Publication date
DE102010047568A1 (de) 2011-12-15
PL2558682T3 (pl) 2019-02-28
EP2558682B1 (fr) 2018-09-19
WO2011128068A2 (fr) 2011-10-20
DK2558682T3 (en) 2019-01-14
WO2011128068A3 (fr) 2013-01-31
US20130027216A1 (en) 2013-01-31
US9982529B2 (en) 2018-05-29

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