EP0140311A1 - Vorrichtung um die Reibung zwischen einem drehenden Bohrgestänge und dem Bohrloch zu vermindern - Google Patents

Vorrichtung um die Reibung zwischen einem drehenden Bohrgestänge und dem Bohrloch zu vermindern Download PDF

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Publication number
EP0140311A1
EP0140311A1 EP84112654A EP84112654A EP0140311A1 EP 0140311 A1 EP0140311 A1 EP 0140311A1 EP 84112654 A EP84112654 A EP 84112654A EP 84112654 A EP84112654 A EP 84112654A EP 0140311 A1 EP0140311 A1 EP 0140311A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
well bore
tubular body
section
drill string
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.)
Withdrawn
Application number
EP84112654A
Other languages
English (en)
French (fr)
Inventor
Edward O. Anders
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.)
Dailey Petroleum Services Corp
Original Assignee
Dailey Petroleum Services Corp
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 Dailey Petroleum Services Corp filed Critical Dailey Petroleum Services Corp
Publication of EP0140311A1 publication Critical patent/EP0140311A1/de
Withdrawn legal-status Critical Current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
    • 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
    • E21B17/1042—Elastomer protector or centering means

Definitions

  • This invention relates to drilling apparatus generally, and in particular to apparatus for use in drilling well bores that are inclined from the vertical.
  • More and more directional wells are being drilled at inclinations from the vertical of 30 to 40° or more.
  • so called “drainage” wells are being planned or considered where the well bore will extend along the plane of the producing formation for one or two thousand feet.
  • To successfully drill such wells it is necessary to be able to drill a relatively long, substantially horizontal, well bore.
  • the drill pipe in inclined wells such as these, and “inclined” is intended to include horizontal wells, is urged toward the low side of the hole by gravity and the tool joints of the drill pipe and sometimes even the center portions of the drill pipe between the tool joints rub against the wall of the well bore and any casing that has been set in the well bore as the drill string is rotated.
  • It is another object of this invention to provide apparatus for reducing the friction resisting rotation of a drill string while drilling that includes a tubular body for connecting into a drill string having a section of reduced diameter and a sleeve of elastomeric material mounted on the section of reduced diameter with the sleeve having an outside diameter larger than the tool joint of the pipe string to keep the tool joint from engaging the wall of the casing or the wall of the well bore in an uncased well bore and an inside diameter slightly larger than that of the section of reduced diameter of the body to allow the sleeve to remain stationary in engagement with the wall of the well bore or casing while the pipe string is free to rotate relative to the sleeve.
  • the friction reducing apparatus of this invention indicated generally by the numbers 10 and 12 are connected into the drill pipe at preselected spaced intervals to engage wall 14 of well bore 16 and keep tool joints 18 of the drill pipe from rubbing against the low side of the well bore.
  • FIGS. 2A and 2B The details of construction of the friction reducing apparatus of this invention are shown in Figures 2A and 2B. It includes tubular body 20 having central section 22 with an outside diameter smaller than the rest of the body to provide two oppositely facing shoulders 24 and 26. Mounted on--section 22 is sleeve 30 of elastomeric material constructed similarly to the stretch-on type pipe protectors that have been in use for some time.
  • the sleeve In conventional stretch-on type pipe protectors, the sleeve remains stretched when placed on the drill pipe so that it will grip the pipe and be held in position by friction between the sleeve and the pipe.
  • sleeve 30 it is desired for sleeve 30 to freely rotate relative to body 20, therefore, its inside diameter is designed to be slightly greater than that of the outside diameter of section 22 in its relaxed condition. It is positioned on section 22 in the same manner that conventional pipe protectors are placed on drill pipe, that is, by stretching them sufficiently to clear the tool joints on the end of the pipe after which they are placed on the body of the pipe itself but still sufficiently stretched to provide the desired friction to hold the protectors in place.
  • the sleeve will be stretched sufficiently to clear upper tool joint section 32 of the body after which it is moved onto section 22 where it is then in its relaxed condition and is free to rotate relative to body 20.
  • drilling fluid While drilling, drilling fluid is pumped down the drill pipe and back to the surface through annulus 34.
  • the upward flow of the drilling fluid will move sleeve 30 into engagement with upper shoulder 24.
  • Also tending to move the sleeve upwardly is the downward movement of the drill pipe, but this will be a relatively minor influence compared to the upward force of the drilling fluid flowing by the sleeve.
  • stretch on type protectors Under certain conditions, stretch on type protectors have been forced over tool joints and up the string due to the force of the upwardly flowing drilling . fluid.
  • shoulder 24 is inclined outwardly and downwardly about 30°, as shown in the drawing, to overlap the lower portion of the end of sleeve 30 to provide a force component urging the end of the sleeve inwardly toward the pipe.
  • Upwardly facing shoulder 26 is provided with a plurality of slots 36 into which portions of the lower end of the sleeve can be forced to hold the sleeve against rotation during washover operations.
  • the elastomeric material used to form the sleeve can be provided with hard, sharp edged particles 40, such as sand, adjacent the outer surface of the sleeve to increase the coefficient of friction between the sleeve and the open hole or casing.
  • the outside surface of section 22 and opposing shoulders 24 and 26 are preferably plated with a hard, very smooth, material such as chromium.
  • the drill pipe should be able to rotate relative to the sleeve with a minimum of friction thereby substantially reducing the torque required to be exerted in the drill string at the surface in order to obtain the desired torque at the bit.
  • sleeve 30 is substantially shorter than .the distance between shoulders 24 and 26. This will allow the driller to pick up his pipe string a short distance to move shoulder 24 away from the upper end of sleeve 30 and get a reasonably accurate indication of what his drill string weighs. Knowing this, he can allow for the amount of weight supported by sleeves 20 while drilling and come closer to knowing what his weight indicator should read with the desired weight on the bit.
  • Upper tool joint section 32 and lower tool joint section 42 are provided with a box and pin connection for :onnecting body 20 into the drill string.
  • FIG. 4 An alternate embodiment of the friction reducing apparatus of this invention is shown installed in drilling string 50 at spaced intervals.
  • the apparatus is indicated by the numbers 52 and 54. Both of the apparatus is the same, so only one will be described in detail.
  • Apparatus 52 includes tubular body 56 that is of substantially the same design as tubular body 20 described above.
  • Sleeve 58 is mounted on reduced section 60 of the body in the same manner as was sleeve 30 as described above. It is free to remain stationary while the drill pipe rotates relative to it.
  • sleeve 58 which, in this embodiment, has an outside diameter equal to or slightly less than that of the well bore in which it is located. As shown in Figures 4 and 5, sleeve 58 is in engagement with the wall of the well bore. In order to allow fluid to flow by the apparatus, longitudinal grooves 62 are formed on the outer surface to allow the fluid to flow through the grooves as it moves toward the surface in annulus 66. There is a slight clearance between the inside surface of sleeve 58 and section 60 of body 56 and consequently sleeve 58 will not hold the drill string exactly in the center of the hole, but very close to it.
  • FIG 6. An alternate embodiment of the apparatus of this invention is shown in Figure 6. This embodiment is designed to accomplish the same result as the embodiment shown in Figures 4 and 5. The difference here is that annular grooves 70 for the drilling fluid are located on the inside surface of sleeve 72 as opposed to the outside surface of sleeve 58.
  • Body 74 is of the same design as body 56 and body 20 described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP84112654A 1983-10-24 1984-10-19 Vorrichtung um die Reibung zwischen einem drehenden Bohrgestänge und dem Bohrloch zu vermindern Withdrawn EP0140311A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54457983A 1983-10-24 1983-10-24
US544579 1983-10-24

Publications (1)

Publication Number Publication Date
EP0140311A1 true EP0140311A1 (de) 1985-05-08

Family

ID=24172764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112654A Withdrawn EP0140311A1 (de) 1983-10-24 1984-10-19 Vorrichtung um die Reibung zwischen einem drehenden Bohrgestänge und dem Bohrloch zu vermindern

Country Status (4)

Country Link
EP (1) EP0140311A1 (de)
JP (1) JPS60112985A (de)
AU (1) AU3409784A (de)
NO (1) NO844220L (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204895A (en) * 1987-05-21 1988-11-23 Stephen Francis Lloyd Drill pipe tubing and casing protectors
US4832137A (en) * 1986-05-29 1989-05-23 Phillips Petroleum Company Method for protecting a pipe casing from a drill pipe string
GB2211523A (en) * 1987-10-28 1989-07-05 K D Engineering Plastics Limit Guiding drill rods
GB2233690A (en) * 1989-06-29 1991-01-16 Red Baron Drill string component
US5009826A (en) * 1986-05-29 1991-04-23 Phillips Petroleum Company Method of molding a composite drill collar
FR2690481A1 (fr) * 1992-04-22 1993-10-29 Total Sa Dispositif de régulation de la pression dans les annulaires d'un puits pétrolier.
US5901798A (en) * 1993-10-14 1999-05-11 Hydril U.K. Limited Drill pipe tubing and casing protectors
GB2340523A (en) * 1998-07-30 2000-02-23 Vetco Gray Inc Abb Drill pipe protection rings
US8701759B1 (en) 2013-03-14 2014-04-22 Summit Energy Services, Inc. Casing centralizer
CN106593313A (zh) * 2016-12-20 2017-04-26 中国石油化工股份有限公司 水平井完井管柱导向减阻器
USD849800S1 (en) 2012-04-04 2019-05-28 Summit Energy Services, Inc. Casing centralizer having spiral blades
US10711535B2 (en) 2013-05-29 2020-07-14 Paradigm Drilling Services Limited Downhole apparatus and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1814183A (en) * 1929-05-20 1931-07-14 Patterson Ballagh Corp Pipe coupling and tool joint
US1910631A (en) * 1929-12-30 1933-05-23 Chikgan Oil Tool Company Ltd Guide for drill pipe
US1985229A (en) * 1929-12-27 1934-12-25 Sullivan Machinery Co Drilling apparatus
US2715552A (en) * 1954-03-01 1955-08-16 Guiberson Corp Drill string bushing tool
US2813697A (en) * 1953-06-15 1957-11-19 Security Engineering Division Stabilizer for drill collars and drill pipes
US3103391A (en) * 1963-09-10 Drill string stabilizer
US3320004A (en) * 1964-06-19 1967-05-16 Drilco Oil Tool Inc Earth boring apparatus
USRE31016E (en) * 1980-12-22 1982-08-24 Conoco Inc. Anti-friction sucker rod guide assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103391A (en) * 1963-09-10 Drill string stabilizer
US1814183A (en) * 1929-05-20 1931-07-14 Patterson Ballagh Corp Pipe coupling and tool joint
US1985229A (en) * 1929-12-27 1934-12-25 Sullivan Machinery Co Drilling apparatus
US1910631A (en) * 1929-12-30 1933-05-23 Chikgan Oil Tool Company Ltd Guide for drill pipe
US2813697A (en) * 1953-06-15 1957-11-19 Security Engineering Division Stabilizer for drill collars and drill pipes
US2715552A (en) * 1954-03-01 1955-08-16 Guiberson Corp Drill string bushing tool
US3320004A (en) * 1964-06-19 1967-05-16 Drilco Oil Tool Inc Earth boring apparatus
USRE31016E (en) * 1980-12-22 1982-08-24 Conoco Inc. Anti-friction sucker rod guide assembly

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832137A (en) * 1986-05-29 1989-05-23 Phillips Petroleum Company Method for protecting a pipe casing from a drill pipe string
US5009826A (en) * 1986-05-29 1991-04-23 Phillips Petroleum Company Method of molding a composite drill collar
GB2204895A (en) * 1987-05-21 1988-11-23 Stephen Francis Lloyd Drill pipe tubing and casing protectors
GB2204895B (en) * 1987-05-21 1991-11-27 Stephen Francis Lloyd Drill pipe tubing and casing protectors
GB2211523A (en) * 1987-10-28 1989-07-05 K D Engineering Plastics Limit Guiding drill rods
GB2233690A (en) * 1989-06-29 1991-01-16 Red Baron Drill string component
GB2233690B (en) * 1989-06-29 1993-02-03 Red Baron Drill string component
FR2690481A1 (fr) * 1992-04-22 1993-10-29 Total Sa Dispositif de régulation de la pression dans les annulaires d'un puits pétrolier.
US5901798A (en) * 1993-10-14 1999-05-11 Hydril U.K. Limited Drill pipe tubing and casing protectors
GB2340523A (en) * 1998-07-30 2000-02-23 Vetco Gray Inc Abb Drill pipe protection rings
GB2340523B (en) * 1998-07-30 2002-06-12 Vetco Gray Inc Abb Drill pipe protection rings
USD849800S1 (en) 2012-04-04 2019-05-28 Summit Energy Services, Inc. Casing centralizer having spiral blades
USD983231S1 (en) 2012-04-04 2023-04-11 Summit Casing Services, Llc Casing centralizer having spiral blades
US8701759B1 (en) 2013-03-14 2014-04-22 Summit Energy Services, Inc. Casing centralizer
US9057229B2 (en) 2013-03-14 2015-06-16 Summit Energy Services, Inc. Casing centralizer
US10711535B2 (en) 2013-05-29 2020-07-14 Paradigm Drilling Services Limited Downhole apparatus and method
CN106593313A (zh) * 2016-12-20 2017-04-26 中国石油化工股份有限公司 水平井完井管柱导向减阻器

Also Published As

Publication number Publication date
NO844220L (no) 1985-04-25
AU3409784A (en) 1985-05-02
JPS60112985A (ja) 1985-06-19

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RU2183250C2 (ru) Стабилизатор

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19860108

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANDERS, EDWARD O.