WO1992019835A1 - Moteur de forage a entrainement hydraulique pour forages a grande profondeur - Google Patents

Moteur de forage a entrainement hydraulique pour forages a grande profondeur Download PDF

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Publication number
WO1992019835A1
WO1992019835A1 PCT/DE1992/000353 DE9200353W WO9219835A1 WO 1992019835 A1 WO1992019835 A1 WO 1992019835A1 DE 9200353 W DE9200353 W DE 9200353W WO 9219835 A1 WO9219835 A1 WO 9219835A1
Authority
WO
WIPO (PCT)
Prior art keywords
drilling
motor
motor housing
housing
rotary pistons
Prior art date
Application number
PCT/DE1992/000353
Other languages
German (de)
English (en)
Inventor
Viktor Pavlovitsch Dubrovskych
Boris Anatolevitsch Kosnyrjev
Vjatscheslav Aleksejevitsch Kaplun
Belal Nasrulajevitsch Chachajev
Juri Ivanovitsch Schilov
Original Assignee
C. Deilmann Aktiengesellschaft
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 C. Deilmann Aktiengesellschaft filed Critical C. Deilmann Aktiengesellschaft
Publication of WO1992019835A1 publication Critical patent/WO1992019835A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units

Definitions

  • the invention relates to a hydraulically driven drilling motor for deep drilling with a motor housing, which can be connected to part of a drilling device and contains a plurality of parallel, axially through-flow displacement motors with rotary pistons, and rotatable with one on the motor housing mounted spindle, which can be connected to another part of the drilling device and driven by the displacement motors.
  • a drill motor of the specified type is known from SU-PS 428074.
  • the rotary pistons of the displacement motors working according to the Moineau principle are rotatably mounted in the spindle, the stator housing of the displacement motors being formed partly by a cylinder wall of the spindle surrounding the rotary pistons and partly by an inner wall of the motor housing surrounding the spindle and the inner wall is provided with an inner toothing which meshes with the outer toothing of the rotary pistons.
  • This known design of a drill motor enables the generation of a high torque with a low spindle speed and a small motor length.
  • the disadvantage here is that a complex seal is required between the spindle and the motor housing in order to avoid losses due to leakage currents, particularly in the sections between the displacement motors.
  • the inner wall of the motor housing which is made of an elastomeric material and on which the rotary pistons roll, is additionally in motion due to the drive torque. potential direction, which leads to increased wear and accordingly to a short service life.
  • the object of the invention is to provide a drilling motor of the type mentioned at the outset which enables a high torque with a small axial length and which is distinguished by a favorable efficiency and a long service life.
  • this object is achieved in that the rotary pistons of the displacement motors are rotatably mounted in the motor housing and are coupled to the spindle by a common gear mechanism, and in that the stator housing of the displacement motors in the motor housing for executing an eccentric circular movement about the axis of rotation of the rotary pistons are freely movable and are connected in a rotationally fixed manner to the motor housing via a coupling which compensates for their circular movement.
  • the displacement motors are arranged as independent structural units in the motor housing, the rotary pistons being mounted in a stationary manner, in contrast to the generally customary arrangement, while the stator housings connected in a rotationally fixed manner to the motor housing execute a circular movement about the axis of the rotary pistons.
  • This kinematic arrangement enables simple and robust transmission of the torque from the rotary pistons to a gear transmission which drives the drilling spindle at a reduced speed and a correspondingly higher torque.
  • the design of the positive displacement does not have any special requirements, but can rather correspond to the standard which has been tried and tested in practice, so that a long service life of the engine components can be achieved at low manufacturing costs.
  • the transmission-side ends of the rotary pistons are provided with spur gear teeth.
  • the spindle can have an internally toothed ring gear, in which the spur gear teeth of the rotary pistons engage.
  • This has the particular advantage that a comparatively large transmission ratio can be achieved with a single gear stage and that there are comparatively favorable tooth engagement ratios which enable a long service life of the gear transmission.
  • lubrication of the gear transmission with the aid of the flushing which drives the rotary piston motors can also be provided, so that expensive gearbox encapsulation is not required.
  • stator housings of the displacement motors only carry out a comparatively small relative movement with respect to the motor housing, the sliding speed being comparatively low, it is possible to seal the inlet openings for the working fluid with respect to the motor housing with simple means.
  • the stator housing is sealed on its end face containing the inlet opening with an axial mechanical seal, through the bore of which the working fluid reaches the inlet opening.
  • the rotary piston motors can be installed in the motor housing through openings on the inlet side, the openings being closable by screw-in sleeves against which the mechanical seals rest.
  • the motor housing has axially parallel cylinder bores in which the Housing of the displacement motors are arranged, the inner diameter of the cylinder bores exceeding the diameter of the stator housing by twice the eccentricity of the rotary pistons.
  • This embodiment is particularly suitable for displacement motors based on the Moineau principle, in which the inner wall of the stator housing is formed by an elastomeric body.
  • the cylinder bore provides additional guidance of the stator housing in the radial direction, as a result of which overstressing of the elastomer can be avoided.
  • the spindle can be designed as a sleeve which is mounted on an axle journal of the motor housing which projects through the gearwheel gear. This configuration contributes to a simple and robust construction of the drill motor and favors a robust configuration of the spindle bearing.
  • FIG. 1 shows a view of a drill motor according to the invention, partially cut
  • Figure 2 shows a cross section through the drill motor according to Figure 1 along the line A-A and
  • FIG. 3 shows a cross section through the drill motor according to FIG. 1 along the line B-B
  • the drill motor shown consists of a cylindrical motor housing 1 which can be connected to a drill rod with a threaded connector 2.
  • the motor housing 1 has a central central bore 3 and, parallel to this, three bearing bores 4, which contain hydraulic displacement motors 5 according to the Moineau principle, at a uniform distance from it.
  • the displaced Germotors 5 have a cylindrical stator housing 6, the inner wall of which is formed by a hollow body made of elastomeric material and has a helical toothing which corresponds to the screw displacement principle.
  • a rotary piston 7 likewise provided with helical teeth, the central axis of which is arranged eccentrically to the central axis of the stator housing.
  • the bearing bores 4 have a diameter which is twice the eccentricity between the stator housing 6 and the rotary piston 7 than the stator housing 6, so that the stator housing 6 can move on a circular path with its central axis about the central axis of the rotary piston 7, whose radius corresponds to the eccentricity between the stator housings 6 and the displacement piston 7.
  • Threaded sleeves 8 are screwed into the ends of the bearing holes 4 adjacent to the threaded connector 2. Between the end faces of the stator housing 6 and the sleeves 8 are mechanical seals 9, which produce a tight connection between the bores of the threaded sleeves 8 and inlet openings 10 in the end face of the stator housing 6.
  • the stator housings 6 are connected to the motor housing 1 in a rotationally fixed manner by a coupling ring 11 and freely movable in the radial direction with respect to their longitudinal axis.
  • the lower ends of the rotary pistons 7 protrude from the stator housings 6 and there have spur gear teeth 12 there.
  • a bearing journal 13 adjoins the end toothing 12 and engages in a blind bore of a bearing sleeve 14.
  • the bearing sleeve 14 is of cylindrical basic shape and is located in an end portion of the smaller diameter of the bearing bore 4. The area of the bearing sleeve 14 which is radially outer with respect to the central axis of the motor housing is removed up to the wall of the blind bore.
  • the motor housing 1 has a section which is reduced in diameter and forms an axle journal 16 on which a sleeve Sen-shaped spindle 17 is rotatably mounted.
  • the bearing consists of a multi-row roller bearing 18 for receiving axial and radial forces, and two slide bearings 19 on both sides of the roller bearing 18. With its upper end, the spindle 17 engages in an annular recess 20 which cuts the bearing bores 4 to such an extent that the Front toothing 12 of the rotary piston 7 is exposed radially outward.
  • the upper end of the spindle 17 is provided with an internal toothing 21 which is in engagement with the end toothing 12 of the rotary piston motors 7.
  • the spindle 17 and the rotary pistons 7 thus directly form a gear transmission which considerably reduces the spindle speed compared to the rotary piston speed and increases the drive torque of the spindle.
  • a seal 22 is provided in the outer surface of the spindle 17, which seals the gear mechanism to the outside.
  • the spindle 17 has a connecting thread 23, into which a drilling tool 24 is screwed.
  • a working fluid is supplied via the drill pipe connected to the threaded connector 2 under high pressure, which passes through the sleeves 8 and the inlet openings 10 into the displacement motors and drives the rotary pistons 7.
  • the working fluid exits at reduced pressure through an outlet opening 25 and passes through the bore of the coupling ring 11 and a section of the bearing bores 4 into an outlet bore 26 which opens into the central bore 3.
  • the working fluid is passed through the central bore 3 to the drilling tool 24, where it is used for cooling, lubrication and for the removal of the cuttings.
  • the rotary pistons 7 rotate exclusively about their central axis, which coincides with the central axis of the bearing bores 4.
  • Drive joints and articulated shafts for transmitting the torque from the rotary pistons 7 to the spindle 17 are therefore not necessary.
  • the reaction moment is transmitted from the coupling rings 11 to the motor housing 1 and is discharged via the drill pipe.
  • a high spindle torque is achieved with the described drilling motor, since the torques of several rotary pistons add up, the individual torques being additionally increased by the gear ratio of the gear transmission.
  • the axial overall length of the drill motor can be kept small by using several rotary pistons of comparatively small diameter.
  • the continuous central bore 3 of the drill motor also offers the possibility of use as a core tool, it also being possible to work with rope core tubes.
  • the motor meets all requirements for dealing with emergency situations, including when the drilling tool becomes stuck.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Dans un moteur de forage à entraînement hydraulique pour forages à grande profondeur comportant un carter-moteur (1) susceptible d'être raccordé à un train de tiges (2) et contenant plusieurs moteurs volumétriques (5) à pistons rotatifs (7), disposés en parallèle et à circulation axiale, ainsi qu'une broche (17) rotative fixée au carter-moteur (1) et susceptible d'être raccordée à un outil de forage (24) et d'être entraînée par les moteurs volumétriques (5), les pistons rotatifs (7) des moteurs volumétriques (5) sont montés rotatifs et stationnaires dans le carter-moteur (1) et accouplés par un engrenage commun (12, 21) à la broche (17), et les carcasses de stator (6) des moteurs volumétriques (5) sont montées librement mobiles dans le carter-moteur (1) pour l'exécution d'un mouvement circulaire excentrique autour de l'axe de rotation des pistons rotatifs (7) et rendues solidaires du carter-moteur (1) par l'intermédiaire d'un accouplement (11) compensant leur mouvement circulaire.
PCT/DE1992/000353 1991-04-29 1992-04-28 Moteur de forage a entrainement hydraulique pour forages a grande profondeur WO1992019835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4113986.0 1991-04-29
DE19914113986 DE4113986A1 (de) 1991-04-29 1991-04-29 Hydraulisch angetriebener bohrmotor zum tiefbohren

Publications (1)

Publication Number Publication Date
WO1992019835A1 true WO1992019835A1 (fr) 1992-11-12

Family

ID=6430606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1992/000353 WO1992019835A1 (fr) 1991-04-29 1992-04-28 Moteur de forage a entrainement hydraulique pour forages a grande profondeur

Country Status (3)

Country Link
AU (1) AU1657192A (fr)
DE (1) DE4113986A1 (fr)
WO (1) WO1992019835A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024727A1 (fr) * 1995-02-07 1996-08-15 Hollandsche Beton Groep N.V. Dispositif pour la creation d'un ecoulement d'eau localise
WO2012109109A2 (fr) * 2011-02-08 2012-08-16 Halliburton Energy Services, Inc. Ensemble de moteurs/pompes multiples
CN106930684A (zh) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 行星磨铣式破岩装置
WO2022208095A1 (fr) * 2021-04-01 2022-10-06 Steel Space Casing Drilling Ltd Appareil d'entraînement rotatif de fond de puits

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173794B1 (en) 1997-06-30 2001-01-16 Intedyne, Llc Downhole mud motor transmission
US5911284A (en) * 1997-06-30 1999-06-15 Pegasus Drilling Technologies L.L.C. Downhole mud motor
US7383898B2 (en) * 2003-06-23 2008-06-10 Schlumberger Technology Corporation Inner and outer motor with eccentric stabilizer
DE102014211710A1 (de) * 2014-06-18 2015-12-24 Aktiebolaget Skf Bohrmotor-Lageranordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU428074A1 (fr) * 1972-07-31 1974-05-15 М. Т. Гусман, Д. Ф. Балденко, А. М. Кочнев , С. С. Никомаров
FR2382574A1 (fr) * 1977-03-03 1978-09-29 Me Co Gruppi Perforazioni Foreuse s'enfoncant d'elle-meme pour le creusage de terrains en general
DE2824441A1 (de) * 1977-06-06 1978-12-14 Tokyo Keiki Kk Erdbohrer
US4133397A (en) * 1977-09-19 1979-01-09 Smith International, Inc. Drilling with multiple in-hole motors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483370A (en) * 1946-06-18 1949-09-27 Robbins & Myers Helical multiple pump
US3304838A (en) * 1965-02-12 1967-02-21 Harry W Mcdonald Fluid operated motor for drilling mechanism
SU463770A1 (ru) * 1972-10-10 1975-03-15 Гидравлический забойный двигатель
SU1384701A1 (ru) * 1981-02-13 1988-03-30 Всесоюзный Научно-Исследовательский Институт Буровой Техники Буровой гидравлический агрегат

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU428074A1 (fr) * 1972-07-31 1974-05-15 М. Т. Гусман, Д. Ф. Балденко, А. М. Кочнев , С. С. Никомаров
FR2382574A1 (fr) * 1977-03-03 1978-09-29 Me Co Gruppi Perforazioni Foreuse s'enfoncant d'elle-meme pour le creusage de terrains en general
DE2824441A1 (de) * 1977-06-06 1978-12-14 Tokyo Keiki Kk Erdbohrer
US4133397A (en) * 1977-09-19 1979-01-09 Smith International, Inc. Drilling with multiple in-hole motors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024727A1 (fr) * 1995-02-07 1996-08-15 Hollandsche Beton Groep N.V. Dispositif pour la creation d'un ecoulement d'eau localise
US6053663A (en) * 1995-02-07 2000-04-25 Dikken; Jacob Jan Device for creating a local water flow
WO2012109109A2 (fr) * 2011-02-08 2012-08-16 Halliburton Energy Services, Inc. Ensemble de moteurs/pompes multiples
WO2012109109A3 (fr) * 2011-02-08 2013-01-03 Halliburton Energy Services, Inc. Ensemble de moteurs/pompes multiples
US9580965B2 (en) 2011-02-08 2017-02-28 Halliburton Energy Services, Inc. Multiple motor/pump array
CN106930684A (zh) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 行星磨铣式破岩装置
WO2022208095A1 (fr) * 2021-04-01 2022-10-06 Steel Space Casing Drilling Ltd Appareil d'entraînement rotatif de fond de puits
GB2609885A (en) * 2021-04-01 2023-02-22 Steel Space Casing Drilling Ltd Downhole rotary drive apparatus
GB2609885B (en) * 2021-04-01 2023-10-18 Steel Space Casing Drilling Ltd Downhole rotary drive apparatus

Also Published As

Publication number Publication date
AU1657192A (en) 1992-12-21
DE4113986A1 (de) 1992-11-12

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