EP0134467A2 - Tige de forage dirigée pour train de tiges rotatif à canal d'injection, pour l'exploitation au fond - Google Patents

Tige de forage dirigée pour train de tiges rotatif à canal d'injection, pour l'exploitation au fond Download PDF

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Publication number
EP0134467A2
EP0134467A2 EP84107700A EP84107700A EP0134467A2 EP 0134467 A2 EP0134467 A2 EP 0134467A2 EP 84107700 A EP84107700 A EP 84107700A EP 84107700 A EP84107700 A EP 84107700A EP 0134467 A2 EP0134467 A2 EP 0134467A2
Authority
EP
European Patent Office
Prior art keywords
piston
boring bar
target
flushing
flushing channel
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
EP84107700A
Other languages
German (de)
English (en)
Other versions
EP0134467B1 (fr
EP0134467A3 (en
Inventor
Heinz Dipl.-Ing. Wallussek
Martin Dipl.-Ing. Wiebe
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.)
Bergwerksverband GmbH
Schwing Hydraulik Elektronik GmbH and Co
Original Assignee
Bergwerksverband GmbH
Schwing Hydraulik Elektronik GmbH and Co
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 Bergwerksverband GmbH, Schwing Hydraulik Elektronik GmbH and Co filed Critical Bergwerksverband GmbH
Priority to AT84107700T priority Critical patent/ATE31778T1/de
Publication of EP0134467A2 publication Critical patent/EP0134467A2/fr
Publication of EP0134467A3 publication Critical patent/EP0134467A3/de
Application granted granted Critical
Publication of EP0134467B1 publication Critical patent/EP0134467B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/062—Deflecting the direction of boreholes the tool shaft rotating inside a non-rotating guide travelling with the shaft
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B47/14—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 using acoustic waves
    • E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B47/14—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 using acoustic waves
    • E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/20—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B47/14—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 using acoustic waves
    • E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/24—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by positive mud pulses using a flow restricting valve within the drill pipe

Definitions

  • the invention relates to a target boring bar for rotating drill pipe with rinsing channel, preferably for underground operation according to the preamble of claim 1.
  • a target boring bar is a drill pipe installed in the drill string train, which receives and transmits measured values that originate from measuring devices and monitors in the target boring bar.
  • the measured values indicate the course of the bore, i.e. Information about any deviations from a predefined direction of the borehole, while the guards provide measured values which enable the functional monitoring of the various devices of such a target boring bar.
  • the invention relates to target boring bars which are provided with a device for correcting the bore.
  • a device usually consists of a plurality of control bars pivotably mounted on the outer tube, which are supported on the joints of the borehole and can be individually adjusted via hydraulically actuatable cylinders in order to correct the direction of the drill pipe.
  • the invention is based on a known target boring bar of the latter type (DE-OS 30 00 239.2).
  • the hydraulically loadable displacement cylinder of the control bars are usually several, preferably for controlling - provided, two inclinometers orthogonal to each other in vertical measuring planes oriented. Their measured values not only supply the input variables of the built-in automatic control strip adjustment, but are also transmitted to a control station arranged at the mouth of the borehole with the telemetric device
  • This telemetric device works with electrical signals which are transmitted via conductors housed either in a trailing cable or in the drill pipes themselves.
  • the signals transmitted in this way are sufficiently accurate because a current source which is independent of the flushing current and which supplies the signal energy and can drive the pressure generator is used for their generation and transmission, provided that the pressure generator does not receive its kinetic energy directly from the rotating inner tube.
  • a battery can also be used as the current source, it is preferably a generator whose rotor is driven by the rotating inner tube.
  • the telemetric device When placed in the drill string, it is difficult to make and maintain proper contact between the drill pipes. If the telemetric device uses a trailing cable, the connection is electrically perfect, but is subject to all mechanical and other stresses caused by the rotating drill pipe, the borehole joints and the borehole irrigation.
  • a target drill rod designed as a drill collar is known (DE-OS 29.41 102), which is designed as a rotating drill pipe.
  • the pressure-modulated flushing stream can be measured at the borehole exit, whereby the pressure impulses can be picked up by a receiver and converted into electrical quantities for transmission.
  • a tube valve in the drill collar serves as a converter for the pressure modulation of the flushing flow, which throttles the flushing flow and is actuated with the help of a built-in, self-contained hydraulic circuit.
  • the hydraulic working medium is controlled by means of a solenoid valve which is charged with the electrical inclination data.
  • Such a telemetric device requires an axial arrangement of the pipe valve, i.e. ahead of the valve body concentrically in a flushing channel, which bypasses the flushing behind the throttle point on the tubular valve body.
  • this results in a spatial problem, namely when the drill pipe having the irrigation channel is relatively thin-walled.
  • this turbine causes errors in the formation of the electrical signals that are to be transmitted.
  • they are Pressure signals characterized by a non-uniform, but in any case flat pressure rise and fall when they are generated and transmitted with the known device. This is disadvantageous because not only does it make it more difficult to recognize the pressure signals, but the signal frequency also remains low and the accuracy of the data to be transmitted in this way remains limited.
  • the invention has for its object to improve the telemetric device in a simple manner with a target boring bar of the type presupposed as known with the aim of eliminating the electrical line connections in the borehole to the outside, but the signals generated with the built-in electro-hydraulic device with the required Transmit accuracy.
  • the invention therefore has the particular advantage that, in addition to the signals supplied by the inclinometers, a large number of further data of the target boring bar can also be transmitted to the outside.
  • the necessary measuring devices and monitors can be accommodated in the standing and therefore relatively less mechanically stressed outer tube and only the signals they deliver after conversion into hydraulic pulses for the spindle piston can be transferred to the flushing flow. You can use it not only to monitor the correct control of the target boring bar according to the predefined borehole course, but also to ensure the proper functioning of the hydraulic and electrical equipment required for this purpose with suitable devices and monitors.
  • the spindle piston is supported on one or both sides and it is acted upon with the hydraulic working medium according to electrical signals according to the feature of claim 2.
  • the double-sided one Bearing of the spindle piston which is then supported in its recess on both sides of the flushing channel.
  • the pulse piston is mounted twice in the rotating inner tube and is arranged transversely to the drilling direction. It is supplied by the hydraulic pump, which is arranged in the non-rotating outer tube, between two shaft seals and thus moves the flushing channel back and forth more or less constrictively in the rotating inner tube.
  • a flawless and secure supply of the pulse piston is achieved since, according to the invention, a rotary leadthrough is provided in the area of the pulse piston between the rotating inner tube and the non-rotating outer tube.
  • the energy supply which is independent of the flushing current, can be achieved in particular by associating the non-rotating outer tube with a boring bar generator that is designed as a slow-moving motor and can be driven by the inner tube.
  • a pressure limiting valve is assigned to it according to a further embodiment of the invention. Excess pressure medium is discharged into the hydraulic tank via the pressure relief valve.
  • a control of the pulse piston that corresponds exactly to the measured values obtained is achieved by controlling a solenoid valve that can be switched via the electronic control in the hydraulic line between the hydraulic pump and the pulse piston. Via this solenoid valve, the respective pulse can be designed exactly according to the measured value determined.
  • the inclinometer as well as the direction indicator, temperature, pressure and voltage meter as a measuring sensor, which are arranged in groups or individually at different locations on the outer and / or inner tube. With such sensors all important and at the same time to assess the state of the target interesting data are determined and forwarded to the drill rig.
  • the evaluation unit arranged on the drilling rig is a differential pressure sensor which is coupled to a display device.
  • the pressure pulses can thus be read immediately on the display device and, if necessary, stored and evaluated.
  • the boring bar generator is equipped with a rectifier and voltage regulator and voltage converter, and the electronic control is supplied with energy by an associated transmitter.
  • the receiver of the differential pressure sensor and the transmitter of the electronic control are synchronized and switched in such a way that the synchronization is checked before each series of measurements he follows.
  • Each pulse sequence is therefore preceded by one or two synchronizing pulses, which only allow recording if the synchronization is flawless.
  • gamma-ray sensors In the case of seam-guided target bores, it is expedient to assign one or more gamma-ray sensors to the outer tube, which can be used to perfectly scan the hanging and the lying.
  • the technical progress of the present invention is essential because both a significantly more precise transmission of measured values to the drill rig is possible and, at the same time, precise monitoring of the drill pipe or the drill rod and the drill bit located far down the hole is achieved. Due to the precise continuous monitoring, additional and subsequent control measurements are unnecessary, which leads to a significant simplification of the entire drilling process. Due to the precise continuous transmission and recording of measured values, the course of the borehole can be continuously checked and regulated, which leads to considerable advantages in terms of drilling technology.
  • the target boring bar transmits the rotary movement to the drilling tool 1 via its inner tube 4.
  • the inner tube 4 surrounds a rinsing channel 3, which forwards the current of the drilling sludge.
  • the inner tube is arranged concentrically in an outer tube 5 and can be rotated therein stored at 9.
  • the outer tube has externally pivotably mounted control strips 7, which are supported on the borehole joints, so that the outer tube is held in place when the drill pipe rotates. This results in a relative rotation of the inner tube 4 in the outer tube 5.
  • the outer tube is used to hold the working cylinder, not shown in detail, for the control strips 7, the hydraulic device used to actuate them, and a large number of measuring devices and monitors, which are shown at 17 and 18 in the figures.
  • the measuring devices include Inclinometers, which monitor the direction of the borehole, generally designated 27, and supply the controlled variables of an electronic control device which automatically adjusts the control strips and thereby ensures compliance with the planned drilling direction.
  • a pump 10 installed in the outer tube generates the hydraulic operating pressure. It can be driven either directly by the rotating inner tube 4 or electrically by a generator 8.
  • the rotor of the generator 8 has a pinion 15 which meshes with a toothing of the inner tube 4, so that the generator is in turn driven by the inner tube 4. In this way, the operation of the hydraulic device and the energy for the measured values and their transmission to the hydraulic device are independent of the living energy of the flushing stream.
  • the generator 8 is therefore also used to generate the energy for the signals from the measuring devices and monitors Control of a 3/2-way solenoid valve 11 to deliver, which controls the hydraulic working medium of a spindle piston generally designated 24.
  • the pump 10 is secured via a pressure relief valve 12 in the ring line 13 to the tank 14, from which it is supplied with pressure medium.
  • the solenoid valve receives its control currents from an electronic control 16. This receives the signals from the measuring devices or monitors 17, 18.
  • the corresponding adjustment of the solenoid valve 11 ensures a selected pressurization of the spindle piston.
  • this spindle piston is a double piston, the details of which are explained in more detail with reference to the illustration in FIGS. 2 and 3. Accordingly, the spindle piston is seated in a recess 44, which has the same diameter over the greater part of its length and passes through the inner tube 4 and the flushing channel 3 (FIG. 2).
  • the face piston 45 which with an O-ring 46 in one half 47 of the spindle piston recess 44 is sealed, is acted upon directly from a line 21b, the short piston 49, which is offset by the shaft 48, is mounted in one half 50 of the spindle piston recess 44 and sealed with an O-ring 51 therein.
  • the recess extends up to an annular seat 52 for a helical spring 26.
  • An axial transverse bore 53 forms a hydraulic connection to the outside.
  • the helical spring 26 is supported under the shirt 54 of the short piston 49 and on a pin 55 extending from the bottom of the short piston 49 and protruding from the piston skirt 54.
  • the spindle shaft 48 constantly traverses the flushing channel 3, which is only slightly throttled because of the small spindle shaft, ie the piston shaft is significantly less than the piston diameter.
  • the embodiment of the spindle piston 24 'according to FIG. 8 differs from this.
  • the recess 44 is provided with a section for the end piston 45, the full diameter ends before the flushing channel 3 on the annular shoulder 52, which forms the seat of the helical spring 26 and continues with a small diameter in the half 50, but which is greatly shortened to accommodate the free end 56 of the spindle shaft 48, which does not cross the flushing channel continuously, but only when the piston end face 57 is pressurized, when the force of the coil spring 26 is overcome * will.
  • the solenoid valve 11 When the solenoid valve 11 is actuated and the corresponding channel 21a or 21b is acted upon or relieved, the pressure medium is either guided in front of the end face 22 of the spindle piston and displaced from the space behind the end face 23 of the short piston 49, so that the spindle piston is instantaneously deflected or the action is reversed, whereby the spindle piston is immediately returned to its starting position.
  • the further pulse train 36 represented by 35 in FIG. 5 with its pulse duration also represented by double arrows identifies a different measurement signal, so that the spindle piston via the directional control valve 11 due to the high switching frequency achievable with solenoid valves of this type actually a multitude of measured values in perfectly distinguishable Record pressure signals and impress the flushing current. can.
  • the converter designed as a differential pressure sensor 29 can therefore convert these pressure signals into electrical signals that can be identified.
  • control station 28 is provided with the converter designed as a differential pressure sensor 29, which actuates a display device 30 and, if appropriate, a writing device 31 at the same time.
  • the converter 29 is accommodated in the drilling slurry feed 33 to the flushing channel.
  • the display device can also be arranged at a distance from the control station 28, possibly also above ground, since the converter 29 supplies current pulses on the output side.
  • the electronics has a power section, which includes a rectifier, which converts the three-phase current into direct current and also has a voltage regulator for maintaining the 24 volt voltage.
  • control electronics It consists of a frequency generator for supplying the direction sensors, a rectifier that directs the direction signals, a target-actual value comparator (window) for the control described at the outset and a control of the solenoid valves that release the oil flow to the control piston of the control bar actuation.
  • transmitter electronics are provided for recording and forwarding measured values or signals which come from guards.
  • the signals from the two inclinometers for e.g. B. vertical holes, which are transmitted via a control voltage of - 5 V.
  • the temperature z. B. the hydraulic medium is monitored at two points, which is done by a voltage signal of 0 to 5 V.
  • the hydraulic tank pressure from 0 to 5 bar can also be reproduced with a voltage signal from 0 to 5 V.
  • the transmitter electronics 16 which includes the actual transmitter, The eight measured values must therefore be recorded as voltage values ⁇ 5 V or 0 to 5 V and the voltage-time conversion of the measured values must be carried out.
  • the transmitter electronics must form pulses from this, the pulse duration, ie the time interval between two successive pulses, corresponding to the voltage value of a measured value channel (8 channels ⁇ 9 pulses).
  • the measured values at the input are queried cyclically and, for the 8 channels ⁇ 9 pulses, are output serially to an output transistor which actuates the solenoid valve 11 for the spindle piston at the appropriate time interval (9 pulses).
  • the pulse piston By actuating the pulse piston, the flushing sludge column in the drill pipe modulates the pressure pulses that are received by the differential pressure sensor 29 at the drilling rig outside the borehole.
  • the differential pressure sensor 29 With a sensitivity of the differential pressure sensor of 0 to 100 mbar and with a voltage supply of 10 to 40 V, current pulses of 0 to 20 mA can be obtained on the output side. These can be forwarded by the converter 29 via a two-wire cable, regardless of the line length.
  • Eight channels with a voltage supply of 24 V can be provided on the receiver side.
  • the remotely transmitted current pulses are converted into voltage pulses and recorded serially.
  • the receiver evaluates the time intervals between the pulses and converts them into voltage values.
  • the voltage values correspond to the measured values recorded by the transmitter.
  • the output is made in parallel on eight digital displays.
  • two synchronous pulses are additionally generated before each series of measurements (nine pulses).
  • the time interval between these synchronizing pulses is always the same. This means that the transmitter and receiver are synchronized.
  • the measurement pulses are only recorded after the receiver has correctly received these synchronization pulses. This enables transmission errors to be eliminated.
  • the transmission accuracy is ⁇ 1.5 V at ⁇ 5 V ⁇ 156 mV ⁇ .
  • the diameter of the recess 44 for the spindle piston is larger than the diameter of the flushing channel 3, which is arranged in the projection of the recess.
  • the spindle piston has a recess 72 which has the same outline and cross section as the flushing channel.
  • a groove 73 in the wall of the recess 44 cooperates with a cam 7 4 on the piston 24, so that the piston is fixed over its entire distance about its longitudinal axis and the neutral position of the piston is flush with the flushing channel.
  • the spindle shaft 48 is limited to the remaining cross section of the spindle piston in the region of its recess 72 and is therefore outside the flushing channel cross section. In this way, the flushing channel cross section remains unrestricted in the neutral position of the piston.
EP84107700A 1983-07-19 1984-07-03 Tige de forage dirigée pour train de tiges rotatif à canal d'injection, pour l'exploitation au fond Expired EP0134467B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107700T ATE31778T1 (de) 1983-07-19 1984-07-03 Zielbohrstange fuer drehendes bohrgestaenge mit spuelkanal fuer den untertagebetrieb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3325962 1983-07-19
DE19833325962 DE3325962A1 (de) 1983-07-19 1983-07-19 Zielbohrstange fuer drehendes bohrgestaenge mit spuelkanal fuer den untertagebetrieb

Publications (3)

Publication Number Publication Date
EP0134467A2 true EP0134467A2 (fr) 1985-03-20
EP0134467A3 EP0134467A3 (en) 1985-07-03
EP0134467B1 EP0134467B1 (fr) 1988-01-07

Family

ID=6204331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107700A Expired EP0134467B1 (fr) 1983-07-19 1984-07-03 Tige de forage dirigée pour train de tiges rotatif à canal d'injection, pour l'exploitation au fond

Country Status (10)

Country Link
US (1) US4596293A (fr)
EP (1) EP0134467B1 (fr)
JP (1) JPS6037394A (fr)
AT (1) ATE31778T1 (fr)
AU (1) AU567355B2 (fr)
BR (1) BR8403588A (fr)
CA (1) CA1222505A (fr)
DE (2) DE3325962A1 (fr)
SU (1) SU1356969A3 (fr)
ZA (1) ZA845530B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214554A2 (fr) * 1985-08-31 1987-03-18 SCHWING HYDRAULIK ELEKTRONIK GMBH & CO. Dispositif de fond de puits pour la transmission d'informations d'un puits
EP0324870A1 (fr) * 1988-01-19 1989-07-26 SCHWING HYDRAULIK ELEKTRONIK GMBH & CO. Tube de trains de tiges autoguidés pour trains de tiges de machines de forage de roche

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3890497D2 (en) * 1987-06-16 1989-06-15 Preussag Ag Device for guiding a drilling tool and/or pipe string
US4928776A (en) * 1988-10-31 1990-05-29 Falgout Sr Thomas E Deviation control tool
FR2641387B1 (fr) * 1988-12-30 1991-05-31 Inst Francais Du Petrole Methode et dispositif de telecommande d'equipement de train de tiges par sequence d'information
US5419405A (en) * 1989-12-22 1995-05-30 Patton Consulting System for controlled drilling of boreholes along planned profile
US5220963A (en) * 1989-12-22 1993-06-22 Patton Consulting, Inc. System for controlled drilling of boreholes along planned profile
US5259468A (en) * 1990-10-04 1993-11-09 Amoco Corporation Method of dynamically monitoring the orientation of a curved drilling assembly and apparatus
US5103919A (en) * 1990-10-04 1992-04-14 Amoco Corporation Method of determining the rotational orientation of a downhole tool
DE4037259A1 (de) * 1990-11-23 1992-05-27 Schwing Hydraulik Elektronik Zielbohrstange mit eigener elektrischer energieversorgung durch einen eingebauten generator
DE4037262C2 (de) * 1990-11-23 1994-05-05 Schwing Hydraulik Elektronik Zielbohrstange
AU1208692A (en) * 1991-01-31 1992-09-07 Bob J. Patton System for controlled drilling of boreholes along planned profile
US5139094A (en) * 1991-02-01 1992-08-18 Anadrill, Inc. Directional drilling methods and apparatus
WO1993012319A1 (fr) * 1991-12-09 1993-06-24 Patton Bob J Systeme permettant de percer des trous de forage de maniere controlee selon un profil programme
US6230822B1 (en) * 1995-02-16 2001-05-15 Baker Hughes Incorporated Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations
EP1632643B1 (fr) * 1995-02-16 2011-06-01 Baker Hughes Incorporated Méthode et dispositif de surveillance et d'enregistrement de conditions de l'opération d'un trépan de forage pendant le forage
AUPO062296A0 (en) * 1996-06-25 1996-07-18 Gray, Ian A system for directional control of drilling
US5810088A (en) * 1997-03-26 1998-09-22 Baker Hughes, Inc. Electrically actuated disconnect apparatus and method
US6050349A (en) * 1997-10-16 2000-04-18 Prime Directional Systems, Llc Hydraulic system for mud pulse generation
AU1097999A (en) * 1997-10-16 1999-05-03 Prime Directional Systems, Llc Oil tool
GB9810321D0 (en) * 1998-05-15 1998-07-15 Head Philip Method of downhole drilling and apparatus therefore
EP0999347A1 (fr) * 1998-11-02 2000-05-10 Halliburton Energy Services, Inc. Dispositif acoustique d'impulsions
US6555926B2 (en) * 2001-09-28 2003-04-29 Baker Hughes Incorporated Pulser
US6857484B1 (en) 2003-02-14 2005-02-22 Noble Drilling Services Inc. Steering tool power generating system and method
US6845826B1 (en) 2003-02-14 2005-01-25 Noble Drilling Services Inc. Saver sub for a steering tool
GB0305617D0 (en) * 2003-03-12 2003-04-16 Target Well Control Ltd Determination of Device Orientation
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8267196B2 (en) 2005-11-21 2012-09-18 Schlumberger Technology Corporation Flow guide actuation
US8297375B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Downhole turbine
US9127521B2 (en) 2009-02-24 2015-09-08 Schlumberger Technology Corporation Downhole tool actuation having a seat with a fluid by-pass
US8365843B2 (en) 2009-02-24 2013-02-05 Schlumberger Technology Corporation Downhole tool actuation
US7669663B1 (en) * 2009-04-16 2010-03-02 Hall David R Resettable actuator for downhole tool
US8028433B1 (en) * 2010-10-14 2011-10-04 Holland Carl A Method and device for measuring the inclination of a roadway
US9217290B2 (en) 2012-01-23 2015-12-22 Transocean Sedco Forex Ventures Limited High definition drilling rate of penetration for marine drilling
CA2861962C (fr) * 2012-01-23 2017-08-15 Transocean Sedco Forex Ventures Limited Taux de penetration de forage de haute definition pour forage marin
CA2887530C (fr) 2012-10-12 2020-03-24 Scientific Drilling International, Inc. Reference d'attitude pour un traitement de raccordement/superposition
GB2518383A (en) * 2013-09-19 2015-03-25 Mincon Internat Ltd Drill rod for percussion drill tool
AU2018445403B2 (en) * 2018-10-15 2021-12-02 Ozzie's Enterprises LLC Borehole mapping tool and methods of mapping boreholes
CN113027417B (zh) * 2021-03-04 2024-02-27 长江水利委员会长江科学院 一种适用于深水位钻孔地应力测试的保水泄压装置及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487681A (en) * 1965-01-14 1970-01-06 Dresser Ind Method and apparatus for resolving well logs
US3788136A (en) * 1972-08-11 1974-01-29 Texaco Inc Method and apparatuses for transmission of data from the bottom of a drill string during drilling of a well
US3805606A (en) * 1972-08-11 1974-04-23 Texaco Inc Method and apparatus for transmission of data from drill bit in wellbore while drilling
US3813656A (en) * 1972-09-29 1974-05-28 Texaco Inc Methods and apparatuses for transmission of longitudinal and torque pulse data from drill string in well while drilling
US3820389A (en) * 1972-09-20 1974-06-28 Texaco Inc Method and apparatuses for transmission of data from drill bit in well while drilling
WO1982001257A1 (fr) * 1980-09-25 1982-04-15 Logging Inc Exploration Servo-vanne pour radiocarottage par telemetrie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388713A (en) * 1972-03-24 1975-03-26 Russell M K Directional drilling of boreholes
US4351037A (en) * 1977-12-05 1982-09-21 Scherbatskoy Serge Alexander Systems, apparatus and methods for measuring while drilling
DE2941102A1 (de) * 1979-10-08 1981-04-16 Dresser Industries, Inc., 75221 Dallas, Tex. In einem bohrstrang zu verwendendes arbeitsgeraet zur erfassung und uebertragung von bohrloch-messdaten
DE3046122C2 (de) * 1980-12-06 1984-05-17 Bergwerksverband Gmbh, 4300 Essen Einrichtungen zur Herstellung zielgerichteter Bohrungen mit einer Zielbohrstange
DE3000239C2 (de) * 1980-01-05 1983-10-20 Bergwerksverband Gmbh, 4300 Essen Einrichtung zur Herstellung zielgerichteter Bohrungen
US4513403A (en) * 1982-08-04 1985-04-23 Exploration Logging, Inc. Data encoding and synchronization for pulse telemetry

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487681A (en) * 1965-01-14 1970-01-06 Dresser Ind Method and apparatus for resolving well logs
US3788136A (en) * 1972-08-11 1974-01-29 Texaco Inc Method and apparatuses for transmission of data from the bottom of a drill string during drilling of a well
US3805606A (en) * 1972-08-11 1974-04-23 Texaco Inc Method and apparatus for transmission of data from drill bit in wellbore while drilling
US3820389A (en) * 1972-09-20 1974-06-28 Texaco Inc Method and apparatuses for transmission of data from drill bit in well while drilling
US3813656A (en) * 1972-09-29 1974-05-28 Texaco Inc Methods and apparatuses for transmission of longitudinal and torque pulse data from drill string in well while drilling
WO1982001257A1 (fr) * 1980-09-25 1982-04-15 Logging Inc Exploration Servo-vanne pour radiocarottage par telemetrie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214554A2 (fr) * 1985-08-31 1987-03-18 SCHWING HYDRAULIK ELEKTRONIK GMBH & CO. Dispositif de fond de puits pour la transmission d'informations d'un puits
EP0214554A3 (en) * 1985-08-31 1987-07-29 Schwing Hydraulik Elektronik Gmbh & Co. Down-hole device for transmitting information from a well
EP0324870A1 (fr) * 1988-01-19 1989-07-26 SCHWING HYDRAULIK ELEKTRONIK GMBH & CO. Tube de trains de tiges autoguidés pour trains de tiges de machines de forage de roche
US5000272A (en) * 1988-01-19 1991-03-19 Martin Wiebe Self-controlling drill rod
AU616930B2 (en) * 1988-01-19 1991-11-14 Bergwerksverband Gmbh A self-controlling drill rod

Also Published As

Publication number Publication date
SU1356969A3 (ru) 1987-11-30
CA1222505A (fr) 1987-06-02
DE3468478D1 (en) 1988-02-11
JPS6037394A (ja) 1985-02-26
ZA845530B (en) 1985-03-27
AU3085584A (en) 1985-01-24
JPH0314993B2 (fr) 1991-02-28
ATE31778T1 (de) 1988-01-15
EP0134467B1 (fr) 1988-01-07
EP0134467A3 (en) 1985-07-03
DE3325962A1 (de) 1985-01-31
US4596293A (en) 1986-06-24
AU567355B2 (en) 1987-11-19
DE3325962C2 (fr) 1987-06-11
BR8403588A (pt) 1985-06-25

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