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WO1990000666A1 - Dispositif d'orientation du sens de forage - Google Patents

Dispositif d'orientation du sens de forage Download PDF

Info

Publication number
WO1990000666A1
WO1990000666A1 PCT/NO1988/000057 NO8800057W WO9000666A1 WO 1990000666 A1 WO1990000666 A1 WO 1990000666A1 NO 8800057 W NO8800057 W NO 8800057W WO 9000666 A1 WO9000666 A1 WO 9000666A1
Authority
WO
WIPO (PCT)
Prior art keywords
packer
drilling
outer pipe
accordance
core barrel
Prior art date
Application number
PCT/NO1988/000057
Other languages
English (en)
Inventor
Viktor Tokle
Original Assignee
Stiftelsen For Industriell Og Teknisk Forskning Ved Nth (Sintef)
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 NO871068A priority Critical patent/NO168962C/no
Priority to SE8800945A priority patent/SE502676C2/sv
Application filed by Stiftelsen For Industriell Og Teknisk Forskning Ved Nth (Sintef) filed Critical Stiftelsen For Industriell Og Teknisk Forskning Ved Nth (Sintef)
Priority to AU19976/88A priority patent/AU626528B2/en
Priority to EP88906141A priority patent/EP0391899A1/fr
Priority to PCT/NO1988/000057 priority patent/WO1990000666A1/fr
Publication of WO1990000666A1 publication Critical patent/WO1990000666A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • 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 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
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • 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
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole

Definitions

  • the invention applies to a device of the type indicate in Claim of Patent 1 for steering the direction of drilling when, for example drilling under fjords, and during the geological mapping of natural resources such as iron ore, minerals, oil and gas.
  • Directional control is obtained at present by using wedges, or drilling is done with two drilling strings with an eccentric bearing located on the front pipe. Both these methods are costly and demanding in terms of labour. Holes with larger diameters can be steered using a turbomotor in the front pipe. Since this method is also expensive it is usually restricted to drilling for oil and gas.
  • the main objective with the invention is to design a means of steering the direction of drilling so that a hole can b drilled in any direction.
  • the device required for this purpose must be simple and inexpensive to produce. It must be easy to use, be robust and require minimal maintenance.
  • a device in accordance with the invention will represent considerable improvements compared with known equip ⁇ ment.
  • the device which is known as a directional drill is to be used in connection with known, standard drilling strings. This means that there are no restrictions on drilling depth apart fro the length of the drilling string and the capacity of the rig.
  • the device is not restricted to a particular diameter of hole. There is however a certain minimum diameter required to allow room for the components.
  • the drilling string can be adjusted so that it is eccentric in relation to the axis of the hole that has already been drilled.
  • Figure 1 shows an axial longitudinal section along the connection between the drilling string and a device in accordanc with the invention.
  • Figure 2 shows an equivalent section of a packer whic is attached to this connection and linked further to an outer pipe in the drilling device, whilst
  • Figure 3 shows the front end of the drilling device complete with an eccentric bearing and a bit.
  • Figure 4 shows a section along A-A
  • Figure 5 shows a section along B-B.
  • a drilling string 11 is screwed to a connection pipe 12 which is internally threaded at its lower end to connect with a drive shaft 13 which forms an extension to the drilling string.
  • the drive shaft 13 is axially moveable in a lower bearing 14 and also supports an upper bearing 15 at the junction with connection pipe 12.
  • Bearing 15 can be moved inside a housing 16 which stretches from the connection pipe 12 and downwards until it joins a packer 17.
  • the housing 16 has a number of functions. It encloses a helical spring 18 which is placed concentrically on the drive shaft 13 between bearings 14 and 15 to maintain tension in the direction of the lower end of the device when the drilling string 11 is pressed vertically downwards.
  • the lower end of the housing 16 also has space for an inclinometer 19 which is used to register the angle of the housing 16 about its axis.
  • the inclino ⁇ meter 19 is linked to a transmitter 20 which is powered by a battery 21, signals being transmitted to a control room about the angle of the housing 16.
  • the interior of the housing 16 is sealed by a packing box 22 and two more bearings, an upper bearing 23 and a lower bearing 24 located on each side of the packing box.
  • the lower end of the housing 16 is threaded internally so that a packer 17 can be screwed into it.
  • the connection between the housing 16 and the packer 17 is made by a pipe end or a nipple 25 with external threads.
  • the packer 17 is designed in known way with an expand- /00666
  • the packer's 17 pressure chamber 29 is connected to the interior of the drilling string through an orifice 30 in the wal of the drilling string.
  • This orifice 30 is placed in a union 31 that links the drive shaft 13 to the lower drive shaft 32.
  • the axial orifice in the union 31 forms a constriction or nozzle to ensure that there is sufficient operating pressure for the packe
  • the lower end of the packer 17 has internal threads s that it can be joined to a connecting housing 33 which is screwe into an outer pipe 34 which protrudes downwards. This is the lower end of the device which extends towards the drilling bit
  • the outer pipe 34 is split into an upper part 34A and a low part 34B.
  • An eccentric bearing 36 is located between the two elements in the outer pipe.
  • the eccentric bearing 36 is mainly shaped as a connecting nipple with external threads on both end and an eccentric space 36A through it (Fig. 5) which is designe to house a core barrel 37.
  • the lower drive shaft 32 is connected to the core barrel 37 by means of a muff-like connecting sleeve 38 which is externally screwed onto the lower drive shaft 32 and internally screwed into the core barrel 37.
  • the core barrel 37 is led through a slide bearing 39 and a sealing ring 40 to the bit 35 which is threaded internally.
  • the sealing ring 40 and the slide bearing 39 are both contained in a housing 41 which is screwed into the lower end of the outer pipe 34B.
  • the eccentric bearing 36 ensures that the core barrel
  • the drill Prior to use, the drill is placed in a jig so that it can be adjusted to the directional deviation required.
  • the eccentric bearing 36 is set in the direction required and the components are locked.
  • the inclinometer 19 is set so that this gives signals about the required direction of the eccentric bearing.
  • the directional drill is screwed together with this turning ratio between the inclinometer and the eccentric bearing.
  • the directional drill is then run into the bottom of the hole.
  • the driller slowly turns the drilling string 11 in the hol until it receives the signal indicating the correct direction from the inclinometer 1 .
  • the water pressure is turned on in the drilling string. This will make the packer 17 hold the outer pip 34 still in relation to the hole wall and thereby position the eccentric bearing 36.
  • the device is now correctly oriented and drilling can commence.
  • Drilling is then carried out to a predetermined depth, depending on how much deviation is required per metre.
  • the maximal drilling length may for instance be 0.5 m.
  • the annulus between the connecting housing 33 and the eccentric bearing 36 is topped up with oil to provide lubricatio for the eccentric bearing and the front bearing 39.
  • the sealing ring 40 prevents any leakage of oil. This space is sealed agains the interior of the packer 17 by a packing box 42 in the lower end of the connecting housing 33, with bearings 43 and 44 at eac end.

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)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Soft Magnetic Materials (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Circuits Of Receivers In General (AREA)
  • Soil Working Implements (AREA)
  • Steering Controls (AREA)

Abstract

Un dispositif d'orientation du sens de forage dans la roche comprend un tube extérieur (34) et un tube carottier (37) conduit à travers un support excentrique (36) dans le tube extérieur pour incliner le sens d'une couronne de forage (35). Le tube extérieur est relié à un dispositif d'étanchéité (17) conçu pour maintenir le dispositif contre la paroi d'un trou. Ledit dispositif d'étanchéité est en accouplement fixe avec un inclinomètre (19) à émetteur (20). Le dispositif permet à un opérateur se trouvant à la surface de régler l'orientation du support excentrique sans aucun transfert mécanique mis à part le train de tiges de forage (11).
PCT/NO1988/000057 1987-03-16 1988-07-07 Dispositif d'orientation du sens de forage WO1990000666A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO871068A NO168962C (no) 1987-03-16 1987-03-16 Retningsstyrt bor
SE8800945A SE502676C2 (sv) 1987-03-16 1988-03-16 Anordning för styrning av riktningen hos ett bergborr
AU19976/88A AU626528B2 (en) 1987-03-16 1988-07-07 Device for steering the direction of drilling
EP88906141A EP0391899A1 (fr) 1987-03-16 1988-07-07 Dispositif d'orientation du sens de forage
PCT/NO1988/000057 WO1990000666A1 (fr) 1987-03-16 1988-07-07 Dispositif d'orientation du sens de forage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO871068A NO168962C (no) 1987-03-16 1987-03-16 Retningsstyrt bor
PCT/NO1988/000057 WO1990000666A1 (fr) 1987-03-16 1988-07-07 Dispositif d'orientation du sens de forage

Publications (1)

Publication Number Publication Date
WO1990000666A1 true WO1990000666A1 (fr) 1990-01-25

Family

ID=26648013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1988/000057 WO1990000666A1 (fr) 1987-03-16 1988-07-07 Dispositif d'orientation du sens de forage

Country Status (5)

Country Link
EP (1) EP0391899A1 (fr)
AU (1) AU626528B2 (fr)
NO (1) NO168962C (fr)
SE (1) SE502676C2 (fr)
WO (1) WO1990000666A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014905A3 (fr) * 1991-02-19 1992-11-26 Bergwerksverband Gmbh Dispositif pour la commande precise de forages selon la methode de foration et de sautage
WO2003080987A1 (fr) * 2002-03-27 2003-10-02 Halliburton Energy Services, Inc. Procédé et dispositif de carottage et/ou forage dévié
WO2013028074A1 (fr) * 2011-08-22 2013-02-28 Devico As Ensemble palier de butée pour carottier directionnel à câble
CN109931020A (zh) * 2019-03-26 2019-06-25 广州市沙唯士电子科技有限公司 一种用于铁矿的可靠性高的高效型探测设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO308552B1 (no) * 1998-12-09 2000-09-25 Devico As Anordning ved avviksbor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1305536A (fr) * 1961-08-14 1962-10-05 Baker Oil Tools Inc Dispositif d'ancrage pour colonnes de tubes, utilisable notamment lors du forage de puits
FR1354032A (fr) * 1963-04-26 1964-02-28 Dispositif de forage
GB1139908A (en) * 1966-05-02 1969-01-15 Drilco Oil Tools Inc Well bore drilling apparatus
SE410753B (sv) * 1978-03-06 1979-10-29 Haglund Mats Torbjorn Anordning for att styra en borrkrona i en bestemd bana
SE424214B (sv) * 1980-11-06 1982-07-05 Mats T Haglund Anordning for att vid borrning av krokta bergborrhal orientera en styrapparat
DE3326885C1 (de) * 1983-07-26 1984-08-16 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
DE3406364C1 (de) * 1983-07-26 1984-11-22 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
WO1986000111A1 (fr) * 1984-06-12 1986-01-03 Universal Downhole Controls, Ltd. Outil de forage directionnel commande au fond du puits
DE2728540C2 (de) * 1976-09-22 1986-08-21 LaCoste and Romberg, Inc., Austin, Tex. Vorrichtung und Verfahren zum Ausrichten eines Instruments innerhalb eines Bohrlochs

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1305536A (fr) * 1961-08-14 1962-10-05 Baker Oil Tools Inc Dispositif d'ancrage pour colonnes de tubes, utilisable notamment lors du forage de puits
FR1354032A (fr) * 1963-04-26 1964-02-28 Dispositif de forage
GB1139908A (en) * 1966-05-02 1969-01-15 Drilco Oil Tools Inc Well bore drilling apparatus
DE2728540C2 (de) * 1976-09-22 1986-08-21 LaCoste and Romberg, Inc., Austin, Tex. Vorrichtung und Verfahren zum Ausrichten eines Instruments innerhalb eines Bohrlochs
SE410753B (sv) * 1978-03-06 1979-10-29 Haglund Mats Torbjorn Anordning for att styra en borrkrona i en bestemd bana
SE424214B (sv) * 1980-11-06 1982-07-05 Mats T Haglund Anordning for att vid borrning av krokta bergborrhal orientera en styrapparat
DE3326885C1 (de) * 1983-07-26 1984-08-16 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
DE3406364C1 (de) * 1983-07-26 1984-11-22 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
WO1986000111A1 (fr) * 1984-06-12 1986-01-03 Universal Downhole Controls, Ltd. Outil de forage directionnel commande au fond du puits

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014905A3 (fr) * 1991-02-19 1992-11-26 Bergwerksverband Gmbh Dispositif pour la commande precise de forages selon la methode de foration et de sautage
WO2003080987A1 (fr) * 2002-03-27 2003-10-02 Halliburton Energy Services, Inc. Procédé et dispositif de carottage et/ou forage dévié
BE1014730A3 (fr) * 2002-03-27 2004-03-02 Halliburton Energy Serv Inc Procede et dispositif de carottage et/ou forage devie.
US7021404B2 (en) 2002-03-27 2006-04-04 Halliburton Energy Services, Inc. Method and device for deviated coring and/or drilling
WO2013028074A1 (fr) * 2011-08-22 2013-02-28 Devico As Ensemble palier de butée pour carottier directionnel à câble
CN109931020A (zh) * 2019-03-26 2019-06-25 广州市沙唯士电子科技有限公司 一种用于铁矿的可靠性高的高效型探测设备

Also Published As

Publication number Publication date
NO168962C (no) 1992-04-22
SE502676C2 (sv) 1995-12-04
AU1997688A (en) 1990-02-05
SE8800945L (sv) 1988-09-17
EP0391899A1 (fr) 1990-10-17
NO871068D0 (no) 1987-03-16
NO871068L (no) 1988-09-19
AU626528B2 (en) 1992-08-06
NO168962B (no) 1992-01-13
SE8800945D0 (sv) 1988-03-16

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