EP2578795A1 - Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur - Google Patents

Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur Download PDF

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Publication number
EP2578795A1
EP2578795A1 EP11183892.6A EP11183892A EP2578795A1 EP 2578795 A1 EP2578795 A1 EP 2578795A1 EP 11183892 A EP11183892 A EP 11183892A EP 2578795 A1 EP2578795 A1 EP 2578795A1
Authority
EP
European Patent Office
Prior art keywords
damper unit
damper
damping
unit
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Withdrawn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
EP11183892.6A
Other languages
German (de)
English (en)
Inventor
Esa Rantala
Tapio Parkkinen
Juha Keskilammi
Jorma MÄKI
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.)
Sandvik Intellectual Property AB
Original Assignee
Sandvik Intellectual Property AB
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 Sandvik Intellectual Property AB filed Critical Sandvik Intellectual Property AB
Priority to EP11183892.6A priority Critical patent/EP2578795A1/fr
Priority to PCT/EP2012/068181 priority patent/WO2013050231A2/fr
Priority to AU2012320749A priority patent/AU2012320749A1/en
Publication of EP2578795A1 publication Critical patent/EP2578795A1/fr
Withdrawn legal-status Critical Current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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

Definitions

  • the damper unit may have, when the damper unit is in a maximum compressed state, a substantially constant outer diameter along at least 75% of its axial length, at least 85% of its axial length, at least 95% of its axial length or at least 99% of its axial length.
  • a lower fixed link When subjected to an axial tension force, a lower fixed link will be provided by the lower connector sleeve 2 and the main shaft 6. An upper fixed link will be provided by the upper connector sleeve 14 and the guide sleeve 5.
  • the tension damper 81, 82 When subjected to a compression force between the shoulders 66 and 711, and the inner gap Gi and the outer gap Go will open.
  • Fig. 3 illustrates another alternative embodiment of a damper unit 1.
  • the embodiment of Fig. 3 differs from that of Fig. 2 in that the intermediate sleeve 15 has a greater axial extension and in that the extension sleeve 16 has a smaller radial extension, such that it extends between, and contacts, the ring 71 and the upper connector sleeve 14.
  • the intermediate sleeve 15 may be slidable relative to all of its radially juxtaposed components. Hence, in this embodiment, the intermediate sleeve 15 will enclose both dampers 81, 82; 11.
  • a lower fixed link When subjecting the unit of Fig. 4 to a compressive force, a lower fixed link will be provided by the connector sleeve 2, the main shaft 6 and the extension sleeve 16.
  • the upper fixed link will be provided by the upper connector sleeve 14.
  • a lower fixed link When subjecting the unit 1 of Fig. 8 to a compressive force, a lower fixed link will be formed by the lower connector sleeve 2 and the axial extension sleeve 16, which provides a surface 65 contacting the compression damper 11.
  • An upper fixed link will be provided by the upper connector sleeve 14, which provides the other surface 133. The smaller one of the inner gap Gi and the outer gap Go will define a maximum length of stroke.
  • Fig. 11 illustrates yet another embodiment of a unit 1, which basically corresponds to the one illustrated in Fig. 10 , but which differs in that the main shaft 6 comprises a further axial extension 67 providing the damper core for the compression damper 11.
  • the extension 67 may extend so far as to provide a sliding contact with the upper connector sleeve 14, such that the inner gap G1 will be provided at the upper connector sleeve 14.
  • Fig. 12 illustrates yet another alternative embodiment.
  • the main shaft 6 forms a damper core (at 63 and 131, respectively) for both dampers 81, 82; 11.
  • the main shaft is connected to the lower connector sleeve 2 via a threaded connection at 22, 61.
  • the upper connector sleeve 14 is connected to the outer sleeve 10 via a threaded connection at 102, 145. There is slidable contact between the main shaft 6 and the upper connector sleeve 14.
  • a compression damper 11 is provided to be compressed between a surface 761 of a second ring 76 and a surface 146 of the connector sleeve 14.
  • a lower fixed link When subjecting the unit 1 of Fig. 12 to a tensile force, a lower fixed link will be provided by the lower connector sleeve 2, the main shaft 6 (via its shoulder which engages the first ring 75) and the first ring 75.
  • An upper fixed link will be provided by the upper connector sleeve 14, the outer sleeve 10 and the guide sleeve 5.
  • the threaded connections used to interconnect some of the parts of the damper unit 1 may be replaced with other types of detachable connections, such as snap connections, pin connections or bayonet-type connections.
  • a damper unit 1 may include several parts that are interconnected mechanically or include more or less one-piece parts. Depending on the manufacturing process, cost of material, assembly considerations, ease of replacement in the damper unit etc. there are different advantages associated with having many different parts on one hand and one-piece parts on the other.

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)
  • Vibration Dampers (AREA)
EP11183892.6A 2011-10-05 2011-10-05 Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur Withdrawn EP2578795A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11183892.6A EP2578795A1 (fr) 2011-10-05 2011-10-05 Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur
PCT/EP2012/068181 WO2013050231A2 (fr) 2011-10-05 2012-09-17 Unité d'amortisseur et système de train de tiges de forage comprenant une telle unité d'amortisseur
AU2012320749A AU2012320749A1 (en) 2011-10-05 2012-09-17 Damper unit and drill string system comprising such a damper unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11183892.6A EP2578795A1 (fr) 2011-10-05 2011-10-05 Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur

Publications (1)

Publication Number Publication Date
EP2578795A1 true EP2578795A1 (fr) 2013-04-10

Family

ID=46875795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11183892.6A Withdrawn EP2578795A1 (fr) 2011-10-05 2011-10-05 Unité d'amortisseur et système de train de forage comportant une telle unité d'amortisseur

Country Status (3)

Country Link
EP (1) EP2578795A1 (fr)
AU (1) AU2012320749A1 (fr)
WO (1) WO2013050231A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10077615B2 (en) 2015-07-31 2018-09-18 ASDR Canada Inc. Sound absorber for a drilling apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10407999B2 (en) 2016-05-11 2019-09-10 Extensive Energy Technologies Partnership Vibration dampener
US10982492B1 (en) * 2020-07-31 2021-04-20 Rime Downhole Technologies, Llc Shock isolator device and related methods
WO2024151878A1 (fr) * 2023-01-11 2024-07-18 Downhole Well Solutions, LLC Outil d'amortissement de forage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339051A (en) * 1970-01-07 1973-11-28 Inst Burovoi Tekhnik Device for applying down-pressure on a well face during drilling
GB2025490A (en) * 1978-07-14 1980-01-23 Wenzel K H Shock-absorbing tool for a well drilling string
US4192155A (en) * 1977-07-21 1980-03-11 Bralorne Resources Limited Floating cushion sub
JPH03253689A (ja) 1990-03-05 1991-11-12 Yoshida Tekkosho:Kk Ｄｔｈハンマの衝撃吸収機構
SU1754877A1 (ru) 1989-03-28 1992-08-15 Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности "Укргипрониинефть" Наддолотный амортизатор
US5372548A (en) * 1990-03-23 1994-12-13 Wohlfeld; William I. Longitudinal and rotary shock absorber for rotary and percussion drill bits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973996A (en) * 1957-01-09 1961-03-07 Self Edward Samuel Stabilizer for drill pipe
JP3253689B2 (ja) 1992-08-10 2002-02-04 株式会社東芝 交差偏波間干渉波補償器
EP1118389A1 (fr) 2000-01-19 2001-07-25 Cws International Ag Procédé et dispositif de distribution contrôlée de mousse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339051A (en) * 1970-01-07 1973-11-28 Inst Burovoi Tekhnik Device for applying down-pressure on a well face during drilling
US4192155A (en) * 1977-07-21 1980-03-11 Bralorne Resources Limited Floating cushion sub
GB2025490A (en) * 1978-07-14 1980-01-23 Wenzel K H Shock-absorbing tool for a well drilling string
SU1754877A1 (ru) 1989-03-28 1992-08-15 Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности "Укргипрониинефть" Наддолотный амортизатор
JPH03253689A (ja) 1990-03-05 1991-11-12 Yoshida Tekkosho:Kk Ｄｔｈハンマの衝撃吸収機構
US5372548A (en) * 1990-03-23 1994-12-13 Wohlfeld; William I. Longitudinal and rotary shock absorber for rotary and percussion drill bits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10077615B2 (en) 2015-07-31 2018-09-18 ASDR Canada Inc. Sound absorber for a drilling apparatus

Also Published As

Publication number Publication date
WO2013050231A3 (fr) 2013-10-17
AU2012320749A1 (en) 2014-03-06
WO2013050231A2 (fr) 2013-04-11

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