EP0413097A1 - Dispositif pour pressuriser dans une émulsion pour forage - Google Patents

Dispositif pour pressuriser dans une émulsion pour forage Download PDF

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Publication number
EP0413097A1
EP0413097A1 EP90110691A EP90110691A EP0413097A1 EP 0413097 A1 EP0413097 A1 EP 0413097A1 EP 90110691 A EP90110691 A EP 90110691A EP 90110691 A EP90110691 A EP 90110691A EP 0413097 A1 EP0413097 A1 EP 0413097A1
Authority
EP
European Patent Office
Prior art keywords
main valve
valve body
tubular
tubular extension
flow 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
EP90110691A
Other languages
German (de)
English (en)
Other versions
EP0413097B1 (fr
Inventor
Dagobert Feld
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.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Eastman Christensen Co
Eastman Teleco 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 Eastman Christensen Co, Eastman Teleco Co filed Critical Eastman Christensen Co
Publication of EP0413097A1 publication Critical patent/EP0413097A1/fr
Application granted granted Critical
Publication of EP0413097B1 publication Critical patent/EP0413097B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 device for generating pressure pulses in a drilling fluid flowing through a drill pipe string in an embodiment according to the preamble of claim 1.
  • the main valve body is supported and guided axially displaceably on the carrier body in the region of its rear end in the direction of flow.
  • the main valve body has a tube extension on its end facing the flow, which has a diameter below the diameter of the constriction, extends through the constriction against the direction of flow and has side slots in the region of its end, which form the inlet opening for the internal flow channel.
  • the invention has for its object to provide a particularly simple, low-wear and reliable device of the type mentioned, and the invention solves this problem by a device with the features of claim 1. With regard to a substantial further embodiment is made to claims 2 to 8.
  • the assignment of the tube extension to the support body makes the pressure withdrawal before the constriction of the housing independent of the position and movements of the main valve body and thus free of the resulting fluctuations.
  • the design of the main valve body is simplified, which is therefore subject to less wear and is more responsive.
  • the double guidance of the main valve body counteracts tilting movements and the resulting clamping phenomena, so that the device can also be used reliably in drilling fluid containing sand and in drill pipe strands for directional, in particular horizontal, drilling.
  • With a simplified possibility for cable routing and for establishing a mechanical and / or electrical connection to the device above the housing there is also the particularly interesting possibility of designing the main part of the device as a pull-up unit.
  • the device illustrated in the drawing for generating pressure pulses in a drilling fluid flowing through a drill pipe string 1 comprises in particular a tubular casing 2 which is supported in a stationary manner in the drill pipe string 1 with a constriction, which in the illustrated example has a separate end on the front end in the direction of flow 4 Housing 2 attached ring body 3 is formed.
  • a support body 5 is supported in a stationary manner, which is essentially tubular and has a foot part 6 and a tubular extension 7, which has a diameter which is below the diameter of the constriction 3 of the housing 2 and through the constriction 3 through the flow direction 4 to in the high pressure area rich of the flowing drilling fluid is preferred.
  • An essentially tubular main valve body 8 is supported on the carrier body 5 and, like the carrier body 5, is arranged coaxially in the housing 2 and axially from its illustrated starting position, defined by a shoulder 9 of the carrier body 5, against the flow direction 4 of the drilling fluid into an upper operating end position is movable.
  • the main valve body 8 defines between itself and the housing 2 an external flow channel 10 for the drilling fluid and between a tapering front end 11 and the constriction 3 a throttle section with a variable flow cross-section depending on the position of the main valve body 8.
  • the carrier body 5 has in the area of its foot part 6 a sliding guide area 13, on which the rear area of the main valve body 8 is slidably supported.
  • This sliding guide area 13 is preferably provided with a hard covering, e.g. a separate sleeve made of tungsten carbide, which, as armor, reduces wear in the sliding guide area. This is particularly important for drilling fluid that contains abrasive particles such as sand.
  • the front end 11 of the main valve body 8, which tapers against the direction of flow 4, is also supported and guided on the tubular extension 7 in the region of a second sliding guide 14, which can also be formed by a hard metal sleeve or some other armoring hard metal coating.
  • a hard metal for example tungsten carbide
  • the assignment of the tubular extension 7 to the carrier body 5 enables a substantial simplification of the shape of the main valve body 8.
  • the main valve body 8 can present a lower moment of inertia and accordingly react more sensitively to pressure differences which act on it.
  • the simplification in shape reduces the wear to which the main valve body 8 is exposed during operation, in particular in drilling fluid with abrasive particles such as sand.
  • the carrier body 5 delimits a coaxial, continuous internal flow channel 15, the inlet opening of which is arranged centrally and in the flow direction 4 in front of the constriction 3 of the housing 2 and is formed by a number of radially oriented bores 16. These bores 16 are made in an attachment part 17 arranged on the end of the tubular extension 7, the upper end of which is designed as a coupling pin 18 for a drawing tool.
  • the attachment part 17 has a rear end face 19 which forms a securing stop for the main valve body 8 and prevents the main valve body 8 from sliding off from the carrier body 5 against the direction of flow 4, which is impossible with a horizontally oriented drill pipe string 1 under certain pressure conditions and then when the clear inner diameter of the ring body 3 exceeds the outer diameter of the main valve body 8.
  • the bores 16 defining the inlet opening for the inner flow channel 15 are preceded by a common sieve 20, the outer surface of which is coaxially aligned and aligned with the outer surface of the attachment part 17.
  • the outer surface of the screen 20 is therefore flowed over in parallel over the entire axial length of the drilling fluid, so that the screen is subjected to constant self-cleaning. This is particularly important when the drilling fluid is offset with sealing additives.
  • An annular space 21 is provided behind the sieve 20, from which the bores 16 open, so that all of them Liche holes 16 remain operational even if the screen 20 should be temporarily partially blocked.
  • the inner flow channel 15 has an extension 22 in the region of the foot part 6 of the carrier body 5, and the extension 22 is connected via connecting channels 23 to a pressure chamber 24 which is provided between the tubular extension 7 of the carrier body 5 and the main valve body 8. Accordingly, a pressure prevails in the pressure chamber 24 which corresponds to the pressure in the drilling fluid in the internal flow channel 15 at the level of the branch of the connecting channels 23.
  • the inner flow channel has an outlet opening in the form of a valve opening 25 in a valve seat part 26 screwed into the extension 22 of the inner flow channel 15.
  • This valve opening 25 can be closed by means of a valve body 27, which can be moved from its open position to a closed position by means of a drive (not shown in more detail, for example formed by an electromagnet).
  • the parts 26, 27 form an auxiliary valve, through which the flow through the inner flow channel 15 with drilling fluid can be released or blocked.
  • the auxiliary valve 26, 27 is controlled by a device (not illustrated in more detail) for determining measurement data from the borehole, which is arranged downstream of the carrier body 5, and the pressure pulses initiated by the auxiliary valve 26, 27 in the drilling fluid are received above ground by a pressure sensor and one Evaluation device supplied.
  • a device not illustrated in more detail
  • the auxiliary valve 26, 27 is closed due to activation by the measuring device.
  • the internal flow channel 15 and thus in the pressure chamber 24 builds accordingly a pressure which corresponds to the pressure of the drilling fluid at the level of the inlet opening of the internal flow channel 15.
  • This pressure prevailing in the pressure chamber 24 exerts hydraulic forces directed against the flow direction 4 on the main valve body 8, the sum of which exceeds the sum of the forces acting in the flow direction on the main valve body 8 located in the starting position.
  • the hydraulic forces acting axially in the flow direction 4 on the main valve body 8 are composed of static and dynamic forces which are derived from the pressure and flow conditions in the external flow channel 10, 12.
  • the hydraulically effective dimensions are coordinated with one another in such a way that the total results against all flow forces acting on the main valve body 8 against the direction of flow 4 at the time when the main valve body 8 moves after the Closing of the auxiliary valve 26, 27 begins to move upward from its starting position, is initially relatively small, then increases with increasing stroke length and finally decreases again until it reaches the value zero.
  • the main valve body 8 assumes its operating pulse position which determines the pressure pulse, in which the main valve body 8 floats in the drilling fluid without a stop.
  • Room 24 After opening the auxiliary valve 26, 27, the pressure in the pressure increases Room 24 again has a value at which the sum of the forces acting in the flow direction 4 on the main valve body 8 exceeds the sum of the forces acting counter to the flow direction 4, with the result that the main valve body 8 returns to its illustrated starting position and is ready for a new pressure pulse generating working cycle is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Sliding Valves (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Valves (AREA)
EP90110691A 1989-08-16 1990-06-06 Dispositif pour pressuriser dans une émulsion pour forage Expired - Lifetime EP0413097B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926908 1989-08-16
DE3926908A DE3926908C1 (fr) 1989-08-16 1989-08-16

Publications (2)

Publication Number Publication Date
EP0413097A1 true EP0413097A1 (fr) 1991-02-20
EP0413097B1 EP0413097B1 (fr) 1993-04-21

Family

ID=6387148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110691A Expired - Lifetime EP0413097B1 (fr) 1989-08-16 1990-06-06 Dispositif pour pressuriser dans une émulsion pour forage

Country Status (5)

Country Link
US (1) US5040155A (fr)
EP (1) EP0413097B1 (fr)
CA (1) CA2023351C (fr)
DE (1) DE3926908C1 (fr)
NO (1) NO175014C (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5836353A (en) * 1996-09-11 1998-11-17 Scientific Drilling International, Inc. Valve assembly for borehole telemetry in drilling fluid
GB2360800B (en) * 2000-03-29 2003-11-12 Geolink Improved signalling system for drilling
DE60207982T2 (de) * 2001-01-24 2006-06-14 Geolink Uk Ltd Bohrsignalgebungssystem
ATE315716T1 (de) 2001-01-24 2006-02-15 Geolink Uk Ltd Druckimpulsgenerator für bohrlochmessung während des bohrens
US7428922B2 (en) * 2002-03-01 2008-09-30 Halliburton Energy Services Valve and position control using magnetorheological fluids
US7082078B2 (en) * 2003-08-05 2006-07-25 Halliburton Energy Services, Inc. Magnetorheological fluid controlled mud pulser
US7180826B2 (en) * 2004-10-01 2007-02-20 Teledrill Inc. Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel
US8138943B2 (en) * 2007-01-25 2012-03-20 David John Kusko Measurement while drilling pulser with turbine power generation unit
US7836948B2 (en) 2007-05-03 2010-11-23 Teledrill Inc. Flow hydraulic amplification for a pulsing, fracturing, and drilling (PFD) device
US7958952B2 (en) * 2007-05-03 2011-06-14 Teledrill Inc. Pulse rate of penetration enhancement device and method
US8174929B2 (en) 2007-07-02 2012-05-08 Schlumberger Technology Corporation Spindle for mud pulse telemetry applications
AU2009204670B2 (en) * 2008-01-17 2013-06-20 Wavefront Reservoir Technologies Ltd. System for pulse-injecting fluid into a borehole
GB0807878D0 (en) * 2008-04-30 2008-06-04 Wavefront Reservoir Technologi System for pulse-injecting fluid into a borehole
US8720572B2 (en) * 2008-12-17 2014-05-13 Teledrill, Inc. High pressure fast response sealing system for flow modulating devices
WO2010071621A1 (fr) * 2008-12-17 2010-06-24 Daniel Maurice Lerner Système d'étanchéité haute pression à réponse rapide pour des dispositifs de modulation d'écoulement
EP2694848B1 (fr) 2011-04-06 2020-03-11 David John Kusko Soupape de régulation hydroélectrique pour emplacements distants
US9133664B2 (en) 2011-08-31 2015-09-15 Teledrill, Inc. Controlled pressure pulser for coiled tubing applications
US9309762B2 (en) 2011-08-31 2016-04-12 Teledrill, Inc. Controlled full flow pressure pulser for measurement while drilling (MWD) device
US9702204B2 (en) 2014-04-17 2017-07-11 Teledrill, Inc. Controlled pressure pulser for coiled tubing measurement while drilling applications
EP3492691A1 (fr) 2011-12-23 2019-06-05 Teledrill Inc. Générateur d'impulsions de pression d'écoulement complet régulé pour dispositif de mesure en forage (« measure while drilling » ou mwd)
US10633968B2 (en) 2011-12-23 2020-04-28 Teledrill, Inc. Controlled pressure pulser for coiled tubing measurement while drilling applications
US8534381B1 (en) * 2012-01-06 2013-09-17 Aim Directional Services, LLC High LCM positive pulse MWD component
US9644440B2 (en) 2013-10-21 2017-05-09 Laguna Oil Tools, Llc Systems and methods for producing forced axial vibration of a drillstring
CA2935828C (fr) 2015-07-16 2018-06-05 Drilformance Technologies, Llc Appareil hydraulique destine a produire des impulsions de pression dans un fluide de forage
US11098580B2 (en) 2019-07-10 2021-08-24 Bench Tree Group, Llc Mud pulse valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520753A1 (de) * 1974-05-10 1975-11-20 Teleco Inc Fernmeldegeraet
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
DE3102238A1 (de) * 1980-01-21 1981-12-10 Dresser Industries, Inc., 75221 Dallas, Tex. Einrichtung zum erzeugen eines vom schlammfluss bei einer erdbohranlage modulierten signals
DE3028813A1 (de) * 1980-07-30 1982-02-11 Christensen, Inc., 84115 Salt Lake City, Utah Verfahren und vorrichtung zur fernuebertragung von informationen
DE3715514C1 (fr) * 1987-05-09 1988-09-08 Eastman Christensen Co., Salt Lake City, Utah, Us

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO154674C (no) * 1980-11-20 1987-01-07 Sperry Sun Inc Innretning for signalering i et borehull under boring.
US4742498A (en) * 1986-10-08 1988-05-03 Eastman Christensen Company Pilot operated mud pulse valve and method of operating the same
DE3715512C1 (fr) * 1987-05-09 1988-10-27 Eastman Christensen Co., Salt Lake City, Utah, Us

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520753A1 (de) * 1974-05-10 1975-11-20 Teleco Inc Fernmeldegeraet
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
DE3102238A1 (de) * 1980-01-21 1981-12-10 Dresser Industries, Inc., 75221 Dallas, Tex. Einrichtung zum erzeugen eines vom schlammfluss bei einer erdbohranlage modulierten signals
DE3028813A1 (de) * 1980-07-30 1982-02-11 Christensen, Inc., 84115 Salt Lake City, Utah Verfahren und vorrichtung zur fernuebertragung von informationen
DE3715514C1 (fr) * 1987-05-09 1988-09-08 Eastman Christensen Co., Salt Lake City, Utah, Us

Also Published As

Publication number Publication date
NO903578L (no) 1991-02-18
CA2023351C (fr) 1996-02-06
EP0413097B1 (fr) 1993-04-21
US5040155A (en) 1991-08-13
NO175014C (no) 1994-08-17
CA2023351A1 (fr) 1991-02-17
DE3926908C1 (fr) 1990-10-11
NO175014B (no) 1994-05-09
NO903578D0 (no) 1990-08-15

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