EP0380910B1 - Verfahren und Bohrgerät zum Horizontalbohren - Google Patents

Verfahren und Bohrgerät zum Horizontalbohren Download PDF

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Publication number
EP0380910B1
EP0380910B1 EP90100112A EP90100112A EP0380910B1 EP 0380910 B1 EP0380910 B1 EP 0380910B1 EP 90100112 A EP90100112 A EP 90100112A EP 90100112 A EP90100112 A EP 90100112A EP 0380910 B1 EP0380910 B1 EP 0380910B1
Authority
EP
European Patent Office
Prior art keywords
drilling tool
tube casing
directional drilling
tube
outer housing
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.)
Expired - Lifetime
Application number
EP90100112A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0380910A3 (de
EP0380910A2 (de
Inventor
Rolf Dipl.-Ing. Panzke
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.)
MICON Mining and Construction Products GmbH and Co KG
Baker Hughes Oilfield Operations LLC
Original Assignee
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 Teleco Co filed Critical Eastman Teleco Co
Publication of EP0380910A2 publication Critical patent/EP0380910A2/de
Publication of EP0380910A3 publication Critical patent/EP0380910A3/de
Application granted granted Critical
Publication of EP0380910B1 publication Critical patent/EP0380910B1/de
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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives

Definitions

  • the invention relates to a method and a drilling device for creating a circumferentially stiffened, predominantly horizontally oriented borehole in soil formations according to the preamble of claim 1 and claim 6.
  • the borehole is driven over a length section by means of a directional drilling tool connected to a drill pipe string. Then a casing pipe is tracked along the drill pipe string and the drill hole drilled by the rotary drill bit of the directional drilling tool is drilled over. As soon as the front end of the casing pipe has found a connection to the directional drilling tool, a subsequent length section of the borehole is now pre-drilled by means of the directional drilling tool and then the casing pipe is again fed.
  • both the drill pipe string with directional drilling tool and the casing string alternately advance along a predetermined line intended as a borehole axis.
  • Such a method with intermittent tracking of the casing tube requires a considerable drilling effort due to over-drilling and produces boreholes with a diameter that significantly exceeds the nominal diameter of the rotary drill bit.
  • the accuracy of the borehole course also leaves something to be desired, since a directional drilling tool with an unstabilized, bent housing that accommodates the deep hole motor and is supported directly on the borehole wall is used.
  • the directional specification is quite imprecise, and directional corrections are frequently required in order to make the course of the borehole approximately follow the desired predetermined line.
  • the removal of cuttings with increasing distance from the rotary drill bit to the front end of the casing tube encounters increasing difficulties, which are aggravated in soft formations as well as in formations with a high level of groundwater.
  • the invention has for its object to provide a method and a drilling device of the type mentioned, through which stiffened boreholes with a smaller diameter and a more precise course can be created with reduced workload and associated costs.
  • the method according to the invention achieves this object with the features of claim 1.
  • the drilling device according to the invention achieves the object with the features of claim 6.
  • the rotary drill bit alone determines the borehole diameter.
  • the casing tube immediately following the rotary drill bit within the contour of the rotary drill bit in the rotary drill bit also forms a wall surface on which the outer housing of the directional drilling tool can be supported precisely.
  • the directional drilling tool is completely removed from formation loads except for its rotary drill bit and the drill pipe string.
  • the directional drilling tool and its drill pipe string as well as the casing pipe form a unit which at the same time moves through the formation, in which the directional drilling tool steers the front end of the casing tube, which in turn forms a precise guide for the directional drilling tool and encapsulates it down to its rotary drill bit.
  • the jacket pipe forms a continuous guide surface on the outside for the removal of cuttings.
  • the drill is structurally extremely simple and enables the creation of boreholes of an extraordinarily precise course, since the directional drilling tool is no longer supported on a borehole wall which may be flexible or which changes due to leaching.
  • a navigation drilling tool can be used with particular advantage as a directional drilling tool, which provides additional accuracy advantages due to the guidance of its outer housing via stabilizers.
  • the drilling device comprises in particular a directional drilling tool 1, designed as a navigation drilling tool in the illustrated embodiment, with a tubular outer housing 2, in which a deep-hole motor 3, not illustrated in more detail, is accommodated, preferably in the form of a turbine which can be driven by the drilling fluid or a Moineau motor which can be driven by the drilling fluid .
  • the deep hole motor 3 drives a chisel shaft 4 emerging from the front end of the outer housing 2, which is mounted in the front part of the outer housing 2 located at the level of a front stabilizer 5 and with its axis at an angle 6 to the central axis 7 of the rear main part of the outer housing 2 of the directional drilling tool 1 is aligned.
  • the outer housing 2 is provided in its rear main part with a rear stabilizer 8, and the stabilizers 5, 8 formed by stabilizer wings or ribs support the outer housing 2 of the directional drilling tool 1 on the inside of a casing tube 9.
  • the outer housing 2 of the directional drilling tool 1 is connected to a drill pipe string 11 by means of a transition piece 10, which at its above-ground end, which is also not shown, can be driven by drive and feed means, also not shown, and can be set in its own rotation and can be supported in a non-rotatable manner in aligned positions.
  • Drive and feed means of a suitable type are known to the person skilled in the art and do not require any further explanation here.
  • the front end of the casing tube is designed as a part 12 which can be displaced with respect to the main part of the casing tube 9 and which is in guide engagement with a guide part 13 of a rotary drill bit 14 in the region of its front edge.
  • This guide part 13 of the rotary drill bit 14 is formed by a cylindrical sealing and guide surface on which the front edge area of the front end 12 of the casing tube 9 is preferably mounted with a seal.
  • the rotary drill bit 14 is fixed on the front end of the chisel shaft 4 by means of a coupling 15, which comprises notchable locking members, not shown, and can be temporarily uncoupled from the chisel shaft.
  • the rotary drill bit 14 or its cutting part 16 has a nominal diameter 17 which is the same or slightly larger than the outer diameter of the tubular casing 9.
  • the front end 12 of the casing tube 9, which is designed as a separately displaceable part, is connected via a pipe joint to the adjoining main part of the casing tube 9, which in the exemplary embodiment shown and is preferably designed as a cut joint 18.
  • the separating cut joint is sealed by an outer circumferential seal 19.
  • the tubular joint can also be formed by a flexible transition region of the casing tube 9, and the flexible transition region can in turn be a corrugated pipe section, a section made of a material with increased bending elasticity or also a section of the casing pipe 9 with an opposite one Areas of the casing tube 9 reduced section modulus.
  • the angle 6 between the axis of the chisel shaft 4 and the central axis 7 of the outer tube 2 of the directional drilling tool 1 is formed by kinking the front part of the outer housing 2 located in the region of the front stabilizer 5, the kink 20 of the outer housing 2 being opposite to the drilling direction the stabilizer 5 and at the same time is arranged in or near the joint plane of the tubular joint 18 of the tubular casing 8.
  • the kink angle corresponding to the angle 6 lies in the illustrated example in an imaginary plane running perpendicular to the plane of the drawing through the central axis 7 of the casing tube 9.
  • the front end 12 of the casing tube 9 can with relative rotary movements between the front parts 5, 13 of the directional drilling tool 1 and the Jacket tube 9 follow the movements of the front part of directional drilling tool 1 and how this describes with its axis the surface line of a circular cone, the tip of which coincides with the kink 20 of the outer housing 2 of directional drilling tool 1.
  • a part of the drilling fluid can be provided via a volume flow dependent bypass valve 24 provided in the outer housing 2 downstream of the deep hole motor 3 are derived in the annular space 25 between the outer housing 2 and the casing tube 9, so that only a correspondingly reduced part of the drilling fluid delivered per unit of time passes the rotary drill bit 14 and passes into the borehole.
  • the directional drilling tool 1 and the casing tube 9 are set in rotation, the direction of rotation of the casing tube 9 and the directional drilling tool 1 being the same, but preferably being opposite.
  • the slow self-rotation of the directional drilling tool 1 ensures the straight-ahead drilling process in spite of the kinking of the outer housing 2, an additional broaching effect being created by the eccentricity 23.
  • the rotary movement of the casing tube 9, serves to reduce the resistance to the advancing movement of the casing tube 9 in the formation. Accordingly, the rotational speed of the rotary movement of the casing tube 9 can easily deviate from that of the directional drilling tool 1 and can be determined from the point of view of minimizing resistance.
  • the directional drilling tool 1 is stopped in the orientation of the outer housing 2 via the drive and feed means and the drill pipe string, which corresponds to the further directional direction of the borehole.
  • the respective position of the rotary drill bit 14 or of the directional drilling tool 1 in the borehole can be determined continuously or at intervals by suitable sensors, so that the desired course of the borehole can be precisely specified by alternately stopping or rotating the directional drilling tool 1.
  • the coupling 15 between the chisel shaft 4 and the rotary drill bit 14 makes it possible to move the directional drilling tool 1 out of the borehole with the casing tube 9 remaining therein, e.g. for inspection and maintenance purposes. It is also possible to replace the directional drilling tool 1 with one without a kink in the outer housing and a correspondingly angled profile of the axis of the chisel shaft 4 to the central axis 7 of the outer housing 2, through which a longer distance can be drilled straight ahead and a borehole section can be created, the Diameter depends only on the nominal diameter of the rotary drill bit 14.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP90100112A 1989-02-01 1990-01-04 Verfahren und Bohrgerät zum Horizontalbohren Expired - Lifetime EP0380910B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3902868A DE3902868C1 (enExample) 1989-02-01 1989-02-01
DE3902868 1989-02-01

Publications (3)

Publication Number Publication Date
EP0380910A2 EP0380910A2 (de) 1990-08-08
EP0380910A3 EP0380910A3 (de) 1992-05-27
EP0380910B1 true EP0380910B1 (de) 1995-03-08

Family

ID=6373168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100112A Expired - Lifetime EP0380910B1 (de) 1989-02-01 1990-01-04 Verfahren und Bohrgerät zum Horizontalbohren

Country Status (5)

Country Link
US (1) US5033556A (enExample)
EP (1) EP0380910B1 (enExample)
CA (1) CA2008977A1 (enExample)
DE (1) DE3902868C1 (enExample)
NO (1) NO900457L (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074366A (en) * 1990-06-21 1991-12-24 Baker Hughes Incorporated Method and apparatus for horizontal drilling
US5148875A (en) * 1990-06-21 1992-09-22 Baker Hughes Incorporated Method and apparatus for horizontal drilling
US5311953A (en) * 1992-08-07 1994-05-17 Baroid Technology, Inc. Drill bit steering
US5386878A (en) * 1994-04-29 1995-02-07 Uti Energy Corp. Rock boring process and apparatus
US5425429A (en) * 1994-06-16 1995-06-20 Thompson; Michael C. Method and apparatus for forming lateral boreholes
DE59508569D1 (de) * 1995-10-09 2000-08-17 Baker Hughes Inc Verfahren und Bohrgerät zum Abteufen von Bohrungen in unterirdische Formationen
CA2235196C (en) 1998-04-20 2003-03-25 Erez Nissim Allouche Method for taking a soil sample from a horizontal borehole
CA2271401C (en) * 1999-02-23 2008-07-29 Tesco Corporation Drilling with casing
ES2230272T3 (es) * 2000-02-24 2005-05-01 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositivo para taladrar agujeros, en especial para taladrar por percusion o por giro-percusion.
US20090236146A1 (en) * 2008-03-19 2009-09-24 Caterpillar Inc. Machine and method for trenchless conduit installation
FI20096109L (fi) * 2009-10-28 2011-04-29 Sandvik Mining & Constr Oy Menetelmä suojarakenteen liittämiseksi syöttöpalkkiin ja kaivostoimilaitteen suojarakenne
RU2435925C1 (ru) * 2010-05-11 2011-12-10 Открытое акционерное общество "Всероссийский научно-исследовательский институт по осушению месторождений полезных ископаемых, защите инженерных сооружений от обводнения, специальным горным работам, геомеханике, геофизике, гидротехнике, геологии и маркшейдерскому делу" Способ сооружения горизонтальной дренажной скважины в неустойчивых подвижных горных породах и буровой снаряд для его осуществления
DE102012217822A1 (de) * 2012-09-28 2014-04-03 Bohlen & Doyen Bauunternehmung Gmbh Vorrichtung und Verfahren zur Verlegung einer Rohrleitung in einem Bohrloch
CN106014258B (zh) * 2016-05-18 2019-03-15 中煤科工集团西安研究院有限公司 煤矿井下同心跟管定向钻进装置及其施工方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839760C1 (en) * 1988-11-25 1990-01-18 Gewerkschaft Walter Ag Double rotary drilling apparatus for making directionally accurate bores, in particular horizontal bores

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176985A (en) * 1975-07-14 1979-12-04 Reading And Bates Construction Co. System and method for installing production casings
US4121673A (en) * 1976-11-10 1978-10-24 Martin Dee Cherrington Drilling and installation system
US4492276A (en) * 1982-11-17 1985-01-08 Shell Oil Company Down-hole drilling motor and method for directional drilling of boreholes
DE3423465C1 (de) * 1984-06-26 1985-05-02 Norton Christensen, Inc., Salt Lake City, Utah Vorrichtungen zum wahlweisen Geradeaus- oder Richtungsbohren in unterirdische Gesteinsformationen
US4629012A (en) * 1985-07-08 1986-12-16 Atlantic Richfield Company Drainhole drilling assembly
DE3534662A1 (de) * 1985-09-28 1987-04-09 Huneke Karl Lenkbarer vortriebskopf einer vorrichtung zum herstellen einer durchdringung im erdboden
US4667751A (en) * 1985-10-11 1987-05-26 Smith International, Inc. System and method for controlled directional drilling

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839760C1 (en) * 1988-11-25 1990-01-18 Gewerkschaft Walter Ag Double rotary drilling apparatus for making directionally accurate bores, in particular horizontal bores

Also Published As

Publication number Publication date
EP0380910A3 (de) 1992-05-27
EP0380910A2 (de) 1990-08-08
NO900457L (no) 1990-08-02
US5033556A (en) 1991-07-23
DE3902868C1 (enExample) 1990-06-07
NO900457D0 (no) 1990-01-31
CA2008977A1 (en) 1990-08-01

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