CA2428171A1 - Wired pipe joint with current-loop inductive couplers - Google Patents

Wired pipe joint with current-loop inductive couplers Download PDF

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Publication number
CA2428171A1
CA2428171A1 CA002428171A CA2428171A CA2428171A1 CA 2428171 A1 CA2428171 A1 CA 2428171A1 CA 002428171 A CA002428171 A CA 002428171A CA 2428171 A CA2428171 A CA 2428171A CA 2428171 A1 CA2428171 A1 CA 2428171A1
Authority
CA
Canada
Prior art keywords
pipe joint
wired pipe
low
annular coil
conductivity
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
CA002428171A
Other languages
French (fr)
Other versions
CA2428171C (en
Inventor
Jacques Jundt
Bruce W. Boyle
Raghu Madhavan
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.)
IntelliServ International Holding Ltd Cayman Island
Original Assignee
Schlumberger Canada Ltd
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 Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Publication of CA2428171A1 publication Critical patent/CA2428171A1/en
Application granted granted Critical
Publication of CA2428171C publication Critical patent/CA2428171C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B17/028—Electrical or electro-magnetic connections
    • E21B17/0283—Electrical or electro-magnetic connections characterised by the coupling being contactless, e.g. inductive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/01—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/95—Electrical connector adapted to transmit electricity to mating connector without physical contact, e.g. by induction, magnetism, or electrostatic field

Abstract

A robust, low-loss wired pipe joint is provided for service as a component of a wired pipe string for transmitting measurement data to a surface station from locations in a borehole in oil well drilling and oil well operations. Conductive layers reduce signal energy losses over the length of the drill string by reducing resistive losses and flux losses at each inductive coupler. The wired pipe joint is robust in that it remains operational in the presence of gaps in the conductive layer. A wired pipe joint includes an elongate tubular shank having an axial bore, a threaded box-end, and a threaded pin end. A first annular coil, fixedly mounted to the box-end is partially surrounded by a first high- conductivity, low-permeability layer, and a second annular coil fixedly mounted to the pin- end is partially surrounded by a second high-conductivity, low-permeability layer, such that when the box-end of a first wired pipe joint is coupled for operation with the pin-end of a second wired pipe joint, the first and second high-conductivity, low- permeability layers form at least a portion of a toroidal path enclosing the first annular coil of the first wired pipe joint and the second annular coil of the second wired pipe joint. Coil windings of the first and second coils of the wired pipe joint are electrically coupled.
CA002428171A 2002-05-31 2003-05-07 Wired pipe joint with current-loop inductive couplers Expired - Lifetime CA2428171C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/160,311 2002-05-31
US10/160,311 US6641434B2 (en) 2001-06-14 2002-05-31 Wired pipe joint with current-loop inductive couplers

Publications (2)

Publication Number Publication Date
CA2428171A1 true CA2428171A1 (en) 2003-11-30
CA2428171C CA2428171C (en) 2006-12-05

Family

ID=22576380

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002428171A Expired - Lifetime CA2428171C (en) 2002-05-31 2003-05-07 Wired pipe joint with current-loop inductive couplers

Country Status (11)

Country Link
US (1) US6641434B2 (en)
EP (1) EP1367216A3 (en)
CN (2) CN1328473C (en)
AU (1) AU2003203926B8 (en)
BR (1) BRPI0301573B1 (en)
CA (1) CA2428171C (en)
FR (1) FR2842673B1 (en)
GB (1) GB2389864B (en)
MX (1) MXPA03004657A (en)
NO (2) NO334051B1 (en)
RU (1) RU2304718C2 (en)

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GB2389864A (en) 2003-12-24
RU2304718C2 (en) 2007-08-20

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