GB2402420B - Method and apparatus for downhole fluid pressure signal generation and transmission - Google Patents

Method and apparatus for downhole fluid pressure signal generation and transmission

Info

Publication number
GB2402420B
GB2402420B GB0419668A GB0419668A GB2402420B GB 2402420 B GB2402420 B GB 2402420B GB 0419668 A GB0419668 A GB 0419668A GB 0419668 A GB0419668 A GB 0419668A GB 2402420 B GB2402420 B GB 2402420B
Authority
GB
United Kingdom
Prior art keywords
transmission
fluid pressure
signal generation
pressure signal
downhole fluid
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 - Fee Related
Application number
GB0419668A
Other versions
GB2402420A (en
GB0419668D0 (en
Inventor
Joseph K Flowers
Michael L Smith
Jeffrey Beckel
Sarmad Adnan
Lawrence Leising
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.)
Schlumberger Technology Corp
Original Assignee
Schlumberger Technology 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
Priority claimed from US09/843,634 external-priority patent/US6604582B2/en
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of GB0419668D0 publication Critical patent/GB0419668D0/en
Publication of GB2402420A publication Critical patent/GB2402420A/en
Application granted granted Critical
Publication of GB2402420B publication Critical patent/GB2402420B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • E21B47/14—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 using acoustic waves
    • E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/24—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by positive mud pulses using a flow restricting valve within the drill pipe
GB0419668A 2000-06-05 2001-05-09 Method and apparatus for downhole fluid pressure signal generation and transmission Expired - Fee Related GB2402420B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20941800P 2000-06-05 2000-06-05
US09/843,634 US6604582B2 (en) 2000-06-05 2001-04-26 Downhole fluid pressure signal generation and transmission
GB0228117A GB2381028B (en) 2000-06-05 2001-05-09 Method and apparatus for downhole fluid pressure signal generation and transmission

Publications (3)

Publication Number Publication Date
GB0419668D0 GB0419668D0 (en) 2004-10-06
GB2402420A GB2402420A (en) 2004-12-08
GB2402420B true GB2402420B (en) 2005-02-09

Family

ID=33458149

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0419668A Expired - Fee Related GB2402420B (en) 2000-06-05 2001-05-09 Method and apparatus for downhole fluid pressure signal generation and transmission
GB0419669A Expired - Fee Related GB2402421B (en) 2000-06-05 2001-05-09 Method and apparatus for downhole fluid pressure signal generation and transmission

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0419669A Expired - Fee Related GB2402421B (en) 2000-06-05 2001-05-09 Method and apparatus for downhole fluid pressure signal generation and transmission

Country Status (1)

Country Link
GB (2) GB2402420B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007257708B2 (en) * 2006-06-09 2012-08-09 Halliburton Energy Services, Inc. Drilling fluid flow diverter
US9879529B2 (en) * 2015-05-18 2018-01-30 Baker Hughes, A Ge Company, Llc Apparatus for generating pulses in fluid during drilling of wellbores

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958217A (en) * 1974-05-10 1976-05-18 Teleco Inc. Pilot operated mud-pulse valve
US4519574A (en) * 1982-09-14 1985-05-28 Norton Christensen, Inc. Auxiliary controlled valve disposed in a drilling string
EP0747570A1 (en) * 1992-12-07 1996-12-11 Akishima Laboratories (Mitsui Zosen) Inc. Mid pulse valve for measurement-while-drilling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958217A (en) * 1974-05-10 1976-05-18 Teleco Inc. Pilot operated mud-pulse valve
US4519574A (en) * 1982-09-14 1985-05-28 Norton Christensen, Inc. Auxiliary controlled valve disposed in a drilling string
EP0747570A1 (en) * 1992-12-07 1996-12-11 Akishima Laboratories (Mitsui Zosen) Inc. Mid pulse valve for measurement-while-drilling system

Also Published As

Publication number Publication date
GB2402420A (en) 2004-12-08
GB0419669D0 (en) 2004-10-06
GB2402421B (en) 2005-02-09
GB2402421A (en) 2004-12-08
GB0419668D0 (en) 2004-10-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20150509