AP2001002381A0 - Data transmission in pipeline systems. - Google Patents

Data transmission in pipeline systems.

Info

Publication number
AP2001002381A0
AP2001002381A0 APAP/P/2001/002381A AP2001002381A AP2001002381A0 AP 2001002381 A0 AP2001002381 A0 AP 2001002381A0 AP 2001002381 A AP2001002381 A AP 2001002381A AP 2001002381 A0 AP2001002381 A0 AP 2001002381A0
Authority
AP
ARIPO
Prior art keywords
string
casing
relay station
data transmission
toroid
Prior art date
Application number
APAP/P/2001/002381A
Inventor
Steven Martin Hudson
Daniel Joinson
Original Assignee
Flight Refueling 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
Priority claimed from GBGB9915968.3A external-priority patent/GB9915968D0/en
Priority claimed from GBGB9924027.7A external-priority patent/GB9924027D0/en
Application filed by Flight Refueling Ltd filed Critical Flight Refueling Ltd
Publication of AP2001002381A0 publication Critical patent/AP2001002381A0/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency

Abstract

A first set of apparatus is arranged for transmitting data from a point in a cased section of a well (1, 3) to a remote location. The apparatus may be used as a relay station (6) to increase operational depth. Signals are applied to and received from the string (1) at the relay station (6) and a selected length of the string (1) is provided with insulating spacer means (9) on either side of the relay station to ensure that the string (1) and casing (3) are effectively isolated for a selected minimum distance. This enables potential differences to be both applied to and detected from the string (1), thus allowing data transmission and reception. A second set of apparatus (figure 8) is arranged for transmitting from an internal unit (408) inside a cased section of the will (401, 403) to the immediate surrounding area outside the casing (403). The internal unit (408) injects current into the string (401). A toroid (415) which surrounds the casing (403) is provided to pick up signals. Spaced connections between the string (401) and casing (403) are provided by conductive packers (411). A mismatch in the current flowing in the string (401) and casing (403) is generated so that a non-zero flux is seen by the toroid and hence a signal can be received.
APAP/P/2001/002381A 1999-07-07 2000-06-30 Data transmission in pipeline systems. AP2001002381A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9915968.3A GB9915968D0 (en) 1999-07-07 1999-07-07 Data transmission systems, method of data transmission, signal recieving apparatus and methods of recieving signals all for use in pipeline systems
GBGB9924027.7A GB9924027D0 (en) 1999-10-11 1999-10-11 Data transmission systems,methods of data transmission,signal receiving apparatus and methods of receiving signals all for use in pipeline systems
PCT/GB2000/002538 WO2001004461A1 (en) 1999-07-07 2000-06-30 Data transmission in pipeline systems

Publications (1)

Publication Number Publication Date
AP2001002381A0 true AP2001002381A0 (en) 2001-12-31

Family

ID=26315741

Family Applications (1)

Application Number Title Priority Date Filing Date
APAP/P/2001/002381A AP2001002381A0 (en) 1999-07-07 2000-06-30 Data transmission in pipeline systems.

Country Status (15)

Country Link
EP (1) EP1194678B1 (en)
JP (1) JP2003504543A (en)
KR (1) KR20020030075A (en)
CN (1) CN1372615A (en)
AP (1) AP2001002381A0 (en)
AT (1) ATE292743T1 (en)
AU (1) AU5694500A (en)
BR (1) BR0012635A (en)
CA (1) CA2378329C (en)
DE (1) DE60019290D1 (en)
EA (1) EA200101247A1 (en)
MX (1) MXPA02000007A (en)
NO (1) NO320860B1 (en)
OA (1) OA11986A (en)
WO (1) WO2001004461A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2364724B (en) * 1999-08-30 2002-07-10 Schlumberger Holdings Measurement while drilling electromagnetic telemetry system using a fixed downhole receiver
US7170423B2 (en) 2003-08-27 2007-01-30 Weatherford Canada Partnership Electromagnetic MWD telemetry system incorporating a current sensing transformer
CA2476787C (en) * 2004-08-06 2008-09-30 Halliburton Energy Services, Inc. Integrated magnetic ranging tool
GB0505855D0 (en) * 2005-03-22 2005-04-27 Expro North Sea Ltd Signalling downhole
US7554458B2 (en) 2005-11-17 2009-06-30 Expro North Sea Limited Downhole communication
EP1969882B1 (en) 2005-12-13 2014-08-13 LG Electronics Inc. Communication method using relay station in mobile communication system
GB2486685A (en) 2010-12-20 2012-06-27 Expro North Sea Ltd Electrical power and/or signal transmission through a metallic wall
GB2573848A (en) * 2016-09-19 2019-11-20 Halliburton Energy Services Inc Powering downhole components in subsurface formations behind casing
WO2018060416A1 (en) * 2016-09-30 2018-04-05 Welltec A/S Downhole completion system
CN109653735B (en) * 2019-03-01 2022-11-15 西南石油大学 Drilling signal downloading device and method based on current loop
CN114635672A (en) * 2021-12-30 2022-06-17 中国石油天然气集团有限公司 Shale gas downhole production dynamic monitoring method and system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364957A (en) * 1939-08-08 1944-12-12 Stanolind Oil & Gas Co Electrical surveying
US3129394A (en) * 1958-03-17 1964-04-14 Texas Eastern Trans Corp Coaxial mode transmission of carrier currents using insulated buried pipe and surrounding earth
JPS5678240A (en) * 1979-11-30 1981-06-27 Tsurumi Seiki:Kk Method and device for underwater signal transmission
GB9212685D0 (en) 1992-06-15 1992-07-29 Flight Refueling Ltd Data transfer
GB9801010D0 (en) * 1998-01-16 1998-03-18 Flight Refueling Ltd Data transmission systems

Also Published As

Publication number Publication date
MXPA02000007A (en) 2003-07-21
OA11986A (en) 2006-04-18
ATE292743T1 (en) 2005-04-15
EP1194678B1 (en) 2005-04-06
JP2003504543A (en) 2003-02-04
EP1194678A1 (en) 2002-04-10
NO320860B1 (en) 2006-02-06
EA200101247A1 (en) 2002-08-29
DE60019290D1 (en) 2005-05-12
NO20020041D0 (en) 2002-01-04
NO20020041L (en) 2002-03-07
WO2001004461A1 (en) 2001-01-18
CA2378329C (en) 2007-09-18
KR20020030075A (en) 2002-04-22
CA2378329A1 (en) 2001-01-18
BR0012635A (en) 2002-04-02
CN1372615A (en) 2002-10-02
AU5694500A (en) 2001-01-30

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