EP3879064B1 - Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol - Google Patents

Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol Download PDF

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Publication number
EP3879064B1
EP3879064B1 EP20162420.2A EP20162420A EP3879064B1 EP 3879064 B1 EP3879064 B1 EP 3879064B1 EP 20162420 A EP20162420 A EP 20162420A EP 3879064 B1 EP3879064 B1 EP 3879064B1
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EP
European Patent Office
Prior art keywords
pressure
soil working
pressure measuring
working device
soil
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.)
Active
Application number
EP20162420.2A
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German (de)
English (en)
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EP3879064A1 (fr
EP3879064C0 (fr
Inventor
Matthias Dr. Ing. SEMEL
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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
Priority to EP20162420.2A priority Critical patent/EP3879064B1/fr
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to ES20162420T priority patent/ES2965334T3/es
Priority to CA3170952A priority patent/CA3170952A1/fr
Priority to CN202180019840.0A priority patent/CN115176065A/zh
Priority to AU2021234003A priority patent/AU2021234003B2/en
Priority to PCT/EP2021/051789 priority patent/WO2021180392A1/fr
Publication of EP3879064A1 publication Critical patent/EP3879064A1/fr
Application granted granted Critical
Publication of EP3879064B1 publication Critical patent/EP3879064B1/fr
Publication of EP3879064C0 publication Critical patent/EP3879064C0/fr
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/003—Drilling with mechanical conveying means
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • 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
    • E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
    • 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
    • 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
    • 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
    • E21B47/06—Measuring temperature or pressure

Definitions

  • the invention relates to a soil cultivation device for creating a substantially vertically running hole in the soil, which is provided with a supporting liquid, with a base body, a connecting device which is arranged on an upper end region of the base body, and a soil removal device and/or a soil displacement device which is arranged at a lower end area of the base body, according to the preamble of claim 1.
  • the invention relates to a method for creating a substantially vertical hole in the ground with such a soil treatment device according to claim 13.
  • a soil working tool such as a drill bucket.
  • the well may be completed as a cased or uncased well.
  • a support fluid is to be provided, which supports the well against collapsing.
  • discontinuous drilling When using a drill bucket, discontinuous drilling must be carried out.
  • the drilling bucket fills with removed soil material until it is complete or at least largely filled. Then the drill bucket is to be pulled out of the liquid-filled hole, with a drill pivoting above the surface to an emptying position at which the drill bucket can be emptied. The drilling bucket is then swung back and driven back into the borehole in order to carry out another drilling step.
  • a drilling bucket is not sufficiently filled during a drilling step, additional drilling steps are necessary. This means additional expenditure of time and money. If, on the other hand, the drilling bucket is overfilled, the soil material in the drilling bucket can become so strong compacted so that it does not fall out of the drill bucket by itself when the bottom is emptied. Additional manual operations for emptying and cleaning the drilling bucket are then necessary. This also means additional expenditure of time and money.
  • the WO 99/00575 A2 shows a continuous drilling method in which several sensors are arranged on the drill string, for example to be able to measure the ambient pressure at the respective position on the drill string. During its translational movement in the borehole, the drill string is continuously rotated. The sensors collect data only during drilling and when the drill string remains in the borehole, but not when the drill string is withdrawn from the borehole.
  • the invention is based on the object of specifying a soil treatment device and a method with which a hole can be created in the soil in a particularly efficient manner.
  • the soil treatment device is characterized in that a first pressure measuring device for measuring a first ambient pressure under the soil treatment device is arranged on a lower area of the base body, and in that a second pressure measurement device for measuring is arranged on an upper area of the base body, which is vertically spaced from the lower area a second ambient pressure is arranged.
  • a basic idea of the invention can be seen in providing at least two pressure measuring devices on a base body of a soil treatment device.
  • the pressure measuring devices are arranged in such a way that they are located in the borehole on a lower area of the base body and on an upper area of the base body.
  • a first ambient pressure can be measured in a lower area of the base body and a second ambient pressure can be measured at a distance from it in an upper area of the base body in the borehole. Due to the fixed distance between the two pressure measuring devices, a comparison of the two measured ambient pressures must result in an essentially constant pressure difference, which depends on the consistency of the supporting liquid.
  • Deviations from this pressure difference or between the measurements of the two pressure measuring devices enable statements to be made, for example, that a negative pressure is forming under the soil treatment device or that it is being filled of the body increases or decreases.
  • the values or data from the pressure measuring devices can therefore be used for safe and efficient operation of the soil treatment device.
  • the pressure measuring devices can be designed in any way, for example as electronic pressure sensors.
  • a preferred embodiment of the invention consists in the first pressure measuring device and/or the second pressure measuring device having at least one hollow measuring body which is filled with a measuring fluid.
  • the measuring body can be a tubular body or a measuring body composed of tubular bodies.
  • a liquid or a gas can be provided as the measuring fluid. Water or an oil is preferably used as the measuring fluid.
  • One or more sensor devices can thus be in protected contact with the measurement fluid.
  • a particularly good pressure measurement can be achieved in that the measuring body has at least one flexible measuring surface which is in contact with the environment.
  • the measuring surface can be a foil, a membrane or a fluid-tight fabric, through which an external ambient pressure can be transmitted to the measuring fluid through the supporting liquid or the soil material.
  • the measuring surface can optionally be protected by a protective device, optionally a protective cover with a perforation, for example by a grid.
  • the measuring body can be designed as any hollow body. It is particularly efficient that the measuring body is tubular.
  • the measuring body can be made from tubular standard materials.
  • the tubular measuring body can have a circular cross-section or a square or other polygonal cross-section.
  • the measuring body is arranged essentially horizontally.
  • the measuring body can preferably stretch horizontally partially or entirely around the circumference of the soil treatment device, so that a reliable pressure measurement can be carried out can.
  • horizontally means an alignment approximately perpendicular to the longitudinal axis of the tillage tool and to the drilling direction.
  • the invention can be realized by two or more separate pressure measuring devices, which can also have electronic sensors.
  • a particularly efficient measuring arrangement consists in that the first pressure measuring device and the second pressure measuring device are fluidically connected via a connecting line and that a sensor device is arranged on the connecting line, with which a pressure difference between a first pressure at the first pressure measuring device and a second pressure can be detected at the second pressure measuring device.
  • the pressure difference can be recorded as an alternative or preferably in addition to the two individual pressure measurements.
  • a direct measurement of a pressure difference allows a particularly reliable statement as to whether, for example, a negative pressure builds up at the lower end of the soil working device, as can occur, for example, if the soil working device is pulled out of the hole too quickly.
  • the soil treatment device can be designed in any way.
  • the soil working device is designed as a removal drilling tool, a displacement drilling tool or a trench wall cutter.
  • a removal drilling tool has material-removing removal elements on its underside, such as cutting teeth, chisels or roller bits.
  • the drilling tool can be a drilling bucket, an auger or, in particular, another discontinuous drilling tool.
  • the soil working device can be designed as a displacement drilling tool.
  • a displacement drilling tool has at least one displacement surface which, when the drive rotates, displaces existing or removed soil material essentially radially into the wall of the borehole.
  • a combination of a removal drilling tool and a displacement drilling tool can also be provided.
  • the soil processing device can also be a trench wall cutter, which has at least one or preferably several cutting wheels at the lower end, which are driven in rotation about axes of rotation directed transversely to the advance direction.
  • a hole or milled slot can also be created with an angular cross-section.
  • the invention also includes a soil cultivation device, which is provided with the soil cultivation device described above for creating a hole in the ground, which is vertically adjustable and drivable.
  • Such a soil cultivation device preferably has a carrier unit with an upper carriage which is rotatably mounted on a movable undercarriage.
  • the undercarriage can in particular have a crawler chassis.
  • the soil cultivation device can in particular be a drilling device or a trench wall milling device with a carrier unit.
  • a substantially vertically directed mast is preferably arranged on the superstructure, along which the soil cultivation device is mounted so that it can be adjusted vertically.
  • a control unit is provided which is in data connection with the first pressure measuring device, the second pressure measuring device and/or the sensor device.
  • the control unit can document pressure profiles and/or control the processing device depending on the determined values and data.
  • control unit is designed to control a vertical movement and/or a rotary drive of the soil treatment device depending on data transmitted from the first pressure measuring device, the second pressure measuring device and/or the sensor device. If, for example, an increase in the pressure difference between the two pressure measuring devices is determined, this can be an indication of the build-up of a negative pressure on the soil treatment device. In this case, a vertical movement, for example when pulling the device out of the hole, can be stopped or reduced until a pressure difference below a predetermined limit value is established again.
  • a rotary drive for example in the case of a drill or a rotary drive on cutting wheels, can be changed depending on the pressure values, with e.g Pressure values can be a measure of how much and in particular whether too much or too little soil material is removed.
  • a further preferred embodiment of the soil cultivation device according to the invention can consist in the control unit being designed to determine a degree of filling based on the data on the pressure on the soil cultivation device. If, for example, in the case of a drill bucket, the filling of the drill bucket with filling material increases, this can be determined from the determined pressure values, in particular from the lower first pressure measuring device. Basically, the pressure at the lower pressure measuring device increases with increasing filling level and thus with an increasing load of removed soil material.
  • a certain limit value is reached, this can be taken as an indication that a sufficient filling level for a drill bucket has been reached.
  • the hole is filled with a support liquid when it is created and a first ambient pressure in a lower region of the soil cultivation device is measured by means of the first pressure measuring device and a second ambient pressure in an upper region of the soil cultivation device is measured by means of the second pressure measuring device.
  • the method according to the invention can be carried out in particular with the soil cultivation device described above or with the soil cultivation device described above. The advantages described above can be achieved in this way.
  • An advantageous variant of the method consists in that the first pressure measuring device is fluidically connected to the second pressure measuring device via a connecting line and that a sensor device is arranged on the connecting line, with which a pressure difference between a first pressure at the first Pressure measuring device and a second pressure is detected at the second pressure measuring device. With the sensor device, a pressure difference between the two pressure measuring devices can be directly detected in an efficient manner.
  • a soil treatment device 10 which is designed as a drilling bucket, is associated with the figures 1 and 2 explained.
  • a tubular housing which surrounds a base body 12 has been left out of the soil treatment device 10 .
  • a base 14 is arranged on the underside of the base body 12 and has a base removal device 30 on its underside. Removed soil material can be received in an inner receiving space on the base body 12 via an opening in the ground (not shown).
  • the bottom 14 is mounted pivotably about a horizontally directed pivot axis 15 . So the bottom 14 can be pivoted down to empty the drill bucket.
  • the housing around the base body 12 is closed at the top by a cover plate 18 on which a connecting device 20 for connecting to a drill rod is attached.
  • the connecting device 20 is designed as a so-called Kelly box, which can accommodate a square-shaped end of a drill rod.
  • a drill rod can thus be accommodated and fastened in the sleeve-shaped connecting device 20 in a rotationally fixed manner by means of transversely directed locking bolts.
  • the soil treatment device 10 is provided with a pressure measuring arrangement 40 which has a first pressure measuring device 41 on a lower area of the base body 12 and a second pressure measuring device 42 on has an upper area of the base body 12 .
  • the lower first pressure measuring device 41 has a first hollow measuring body 45a which is constructed in the form of a ring from three tubular elements.
  • the outer measuring element pointing outwards is formed in an arc shape corresponding to an outer peripheral radius of the base body 12 .
  • a flexible measuring surface 48 can be arranged in particular on an inside of the first hollow measuring body 45a, which deforms according to an external pressure due to the presence of supporting liquid, possibly with removed soil material, and thus transfers an external pressure to an internal measuring fluid.
  • the first hollow measuring body 45a is formed parallel to the horizontal base 14 and can be in contact with an outside or an external environment via a recess in the base 14 .
  • a corresponding recess is also formed in the cover plate 18 , a channel 17 being formed by an inner wall 16 along the base body 12 , through which support suspension can flow along the base body 12 .
  • the upper second pressure gauge 42 has a second annular hollow gauge body 45b formed of four tubular members.
  • the second hollow measuring body 45b extends in the form of a ring around the connecting device 20 on the upper side of the cover plate 18.
  • the second hollow measuring body 45b is also designed with a flexible measuring surface for detecting an external ambient pressure, with the ambient pressure being able to be transferred to an internal measuring fluid.
  • the first pressure measuring device 41 and the second pressure measuring device 42 are fluidically connected via a connecting line 44 which extends axially along the base body 12 .
  • the inner wall 16 is provided, which largely delimits and protects the connecting line 44 and also the first pressure measuring device 41 on the floor 14 from removed soil material in the interior of the base body 12 .
  • a sensor device 50 is connected to the connecting line 44 on the cover plate 18 and can be used to determine a pressure difference between the first pressure measuring device 41 and the second pressure measuring device 42 .
  • the sensor device 50 can have a conventional pressure sensor or also a flow meter, which detects a movement of the measuring fluid in the pressure measuring arrangement 40 due to different pressures at the first pressure measuring device 41 and the second pressure measuring device 42 .
  • pressure sensors can also be arranged on the two pressure measuring devices 41, 42, with which an absolute pressure can be determined in each case.
  • the sensor device 50 and the additional sensors are connected to a control unit of a soil cultivation device, not shown, the control unit controlling a vertical movement of the soil cultivation device 10 and/or a rotary drive for turning the soil cultivation device 10 according to the determined pressure values.
  • the pressure measuring devices 41, 42 are arranged on an outside. If it is desired to record the degree of filling, the first pressure measuring device 41 can be arranged in the inner receiving space of the base body 12 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Measuring Fluid Pressure (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Earth Drilling (AREA)

Claims (14)

  1. Dispositif de traitement de sol pour la création d'un trou globalement vertical dans le sol, qui dispose d'un liquide de soutien, avec
    - un corps de base (12),
    - un dispositif de liaison (20) disposé sur une partie d'extrémité supérieure du corps de base (12), et
    - un dispositif de creusement (30) et/ou un dispositif d'excavation qui est disposé sur une partie d'extrémité inférieure du corps de base (12),
    caractérisé en ce que
    sur une partie inférieure du corps de base (12), est disposé un premier dispositif de mesure de pression (41) pour la mesure d'une première pression ambiante sous le dispositif de traitement de sol, et
    sur une partie supérieure du corps de base (12), qui est distante verticalement de la partie inférieure, est disposé un deuxième dispositif de mesure de pression (42) pour la mesure d'une deuxième pression ambiante.
  2. Dispositif de traitement de sol selon la revendication 1,
    caractérisé en ce que
    le premier dispositif de mesure de pression (41) et/ou le deuxième dispositif de mesure de pression (42) comprennent au moins un corps de mesure creux (45a, 45b) qui est rempli d'un fluide de mesure.
  3. Dispositif de traitement de sol selon la revendication 2,
    caractérisé en ce que
    le corps de mesure (45a, 45b) comprend au moins une surface de mesure flexible (48) qui est en contact avec l'environnement.
  4. Dispositif de traitement de sol selon la revendication 2 ou 3,
    caractérisé en ce que
    le corps de mesure (45a, 45b) présente une forme tubulaire.
  5. Dispositif de traitement de sol selon l'une des revendications 2 à 4,
    caractérisé en ce que
    le corps de mesure (45a, 45b) est disposé de manière globalement horizontale.
  6. Dispositif de traitement de sol selon l'une des revendications 1 à 5,
    caractérisé en ce que
    le premier dispositif de mesure de pression (41) et le deuxième dispositif de mesure de pression (42) sont en liaison fluidique par l'intermédiaire d'une conduite de liaison (44) et en ce que, sur la conduite de liaison (44), est disposé un dispositif de capteur (50) permettant une mesure d'une différence de pression entre une première pression au niveau du premier dispositif de mesure de pression (41) et une deuxième pression au niveau du deuxième dispositif de mesure de pression (42).
  7. Dispositif de traitement de sol selon l'une des revendications 1 à 6,
    caractérisé en ce que
    celui-ci est conçu comme un alésoir, un outil de forage ou un excavateur de tranchée.
  8. Appareil de traitement de sol,
    caractérisé en ce que
    pour la création d'un trou dans le sol, un dispositif de traitement de sol (10) selon l'une des revendications 1 à 7 est disposé de manière réglable et entraînable verticalement.
  9. Appareil de traitement de sol selon la revendication 8,
    caractérisé en ce que
    une unité de support est prévue avec un chariot supérieur qui est logé de manière rotative sur un chariot inférieur mobile.
  10. Appareil de traitement de sol selon la revendication 8 ou 9,
    caractérisé en ce que
    une unité de commande est prévue, qui est en liaison de données avec le premier dispositif de mesure de pression (41) et le deuxième dispositif de mesure de pression (42) et/ou le dispositif de capteur (50).
  11. Appareil de traitement de sol selon la revendication 10,
    caractérisé en ce que
    l'unité de commande est conçue pour contrôler un mouvement vertical et/ou un entraînement en rotation du dispositif de traitement de sol (10) en fonction des données qui sont transmises par le premier dispositif de mesure de pression (41) et le deuxième dispositif de mesure de pression (42) et/ou le dispositif de capteur.
  12. Appareil de traitement de sol selon la revendication 10 ou 11,
    caractérisé en ce que
    l'unité de commande est conçue pour déterminer, sur la base des données concernant la pression au niveau du dispositif de traitement de sol (10), un degré de remplissage.
  13. Procédé pour la création d'un trou globalement vertical dans le sol avec un dispositif de traitement de sol (10) selon l'une des revendications 1 à 7 ou un appareil de traitement de sol selon l'une des revendications 8 à 12,
    dans lequel le trou est rempli, lors de sa création, d'un liquide de soutien et, au moyen d'un premier dispositif de mesure de pression (41), une première pression ambiante est mesurée dans une partie inférieure sous le dispositif de traitement de sol et, au moyen du deuxième dispositif de mesure de pression (42), une deuxième pression ambiante est mesurée dans une partie supérieure du dispositif de traitement de sol (10).
  14. Procédé selon la revendication 13,
    caractérisé en ce que
    le premier dispositif de mesure de pression (41) est reliée de manière fluidique avec le deuxième dispositif de mesure de pression (42) par l'intermédiaire d'une conduite de liaison (44) et
    sur la conduite de liaison (44), est disposé un dispositif de capteur (50) permettant une mesure d'une différence de pression entre une première pression au niveau du premier dispositif de mesure de pression (41) et une deuxième pression au niveau du deuxième dispositif de mesure de pression (42).
EP20162420.2A 2020-03-11 2020-03-11 Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol Active EP3879064B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES20162420T ES2965334T3 (es) 2020-03-11 2020-03-11 Dispositivo de trabajo del suelo y procedimiento para realizar un agujero sustancialmente vertical en el suelo
EP20162420.2A EP3879064B1 (fr) 2020-03-11 2020-03-11 Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol
CN202180019840.0A CN115176065A (zh) 2020-03-11 2021-01-27 用于在土壤中生成基本上竖直的孔的土壤加工装置和方法
AU2021234003A AU2021234003B2 (en) 2020-03-11 2021-01-27 Soil working device and method for creating a substantially vertical hole in the ground
CA3170952A CA3170952A1 (fr) 2020-03-11 2021-01-27 Dispositif de travaux de terrassement et procede de creation d'un trou sensiblement vertical dans la terre
PCT/EP2021/051789 WO2021180392A1 (fr) 2020-03-11 2021-01-27 Dispositif de travaux de terrassement et procédé de création d'un trou sensiblement vertical dans la terre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20162420.2A EP3879064B1 (fr) 2020-03-11 2020-03-11 Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol

Publications (3)

Publication Number Publication Date
EP3879064A1 EP3879064A1 (fr) 2021-09-15
EP3879064B1 true EP3879064B1 (fr) 2023-08-09
EP3879064C0 EP3879064C0 (fr) 2023-08-09

Family

ID=69804668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20162420.2A Active EP3879064B1 (fr) 2020-03-11 2020-03-11 Dispositif de traitement du sol et procédé de production d'un trou essentiellement vertical dans le sol

Country Status (6)

Country Link
EP (1) EP3879064B1 (fr)
CN (1) CN115176065A (fr)
AU (1) AU2021234003B2 (fr)
CA (1) CA3170952A1 (fr)
ES (1) ES2965334T3 (fr)
WO (1) WO2021180392A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440727A1 (de) * 1984-11-07 1986-05-07 E + M Bohr GmbH, 8670 Hof Bohrwerkzeug
US6176323B1 (en) * 1997-06-27 2001-01-23 Baker Hughes Incorporated Drilling systems with sensors for determining properties of drilling fluid downhole
CN2791234Y (zh) * 2004-11-11 2006-06-28 鞠浩文 电动钻井机
CN201943581U (zh) * 2010-12-24 2011-08-24 北京市三一重机有限公司 内螺旋筒式钻具
US8615906B2 (en) * 2012-04-16 2013-12-31 Pengo Corporation Drilling bucket

Also Published As

Publication number Publication date
CN115176065A (zh) 2022-10-11
ES2965334T3 (es) 2024-04-12
AU2021234003B2 (en) 2024-02-15
CA3170952A1 (fr) 2021-09-16
AU2021234003A1 (en) 2022-09-29
WO2021180392A1 (fr) 2021-09-16
EP3879064A1 (fr) 2021-09-15
EP3879064C0 (fr) 2023-08-09

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