GB0907760D0 - Method and apparatus for reducing stick-slip - Google Patents

Method and apparatus for reducing stick-slip

Info

Publication number
GB0907760D0
GB0907760D0 GBGB0907760.3A GB0907760A GB0907760D0 GB 0907760 D0 GB0907760 D0 GB 0907760D0 GB 0907760 A GB0907760 A GB 0907760A GB 0907760 D0 GB0907760 D0 GB 0907760D0
Authority
GB
United Kingdom
Prior art keywords
slip
reducing stick
stick
reducing
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.)
Ceased
Application number
GBGB0907760.3A
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.)
National Oilwell Varco LP
Original Assignee
National Oilwell Varco LP
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 National Oilwell Varco LP filed Critical National Oilwell Varco LP
Priority to GBGB0907760.3A priority Critical patent/GB0907760D0/en
Publication of GB0907760D0 publication Critical patent/GB0907760D0/en
Priority to EP12188975.2A priority patent/EP2549055B2/en
Priority to CA2793117A priority patent/CA2793117C/en
Priority to RU2011127195/03A priority patent/RU2478782C2/en
Priority to CA 2745062 priority patent/CA2745062C/en
Priority to US13/132,559 priority patent/US8689906B2/en
Priority to PL09768225T priority patent/PL2364398T3/en
Priority to BRPI0917046-4A priority patent/BRPI0917046B1/en
Priority to EP14182352.6A priority patent/EP2843186B1/en
Priority to PL12188975T priority patent/PL2549055T3/en
Priority to PCT/GB2009/051618 priority patent/WO2010064031A1/en
Priority to MX2015001319A priority patent/MX342292B/en
Priority to BR122012029014-9A priority patent/BR122012029014B1/en
Priority to EP20090768225 priority patent/EP2364398B1/en
Priority to MX2011005529A priority patent/MX2011005529A/en
Priority to RU2012144426/03A priority patent/RU2518699C1/en
Priority to US14/027,741 priority patent/US8950512B2/en
Priority to US14/589,349 priority patent/US9885231B2/en
Priority to US15/842,147 priority patent/US10533407B2/en
Ceased legal-status Critical Current

Links

GBGB0907760.3A 2008-12-02 2009-05-07 Method and apparatus for reducing stick-slip Ceased GB0907760D0 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
GBGB0907760.3A GB0907760D0 (en) 2009-05-07 2009-05-07 Method and apparatus for reducing stick-slip
MX2011005529A MX2011005529A (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly.
EP14182352.6A EP2843186B1 (en) 2008-12-02 2009-11-30 Method and apparatus for reducing stick-slip
PCT/GB2009/051618 WO2010064031A1 (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly
RU2011127195/03A RU2478782C2 (en) 2008-12-02 2009-11-30 Method and device to calculate instantaneous speed of drilling string assembly bottom rotation
CA 2745062 CA2745062C (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly
US13/132,559 US8689906B2 (en) 2008-12-02 2009-11-30 Methods and apparatus for reducing stick-slip
PL09768225T PL2364398T3 (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly
BRPI0917046-4A BRPI0917046B1 (en) 2008-12-02 2009-11-30 method to estimate the instantaneous rotational speed of a lower well structure
EP12188975.2A EP2549055B2 (en) 2008-12-02 2009-11-30 Method and apparatus for reducing stick-slip
PL12188975T PL2549055T3 (en) 2008-12-02 2009-11-30 Method and apparatus for reducing stick-slip
CA2793117A CA2793117C (en) 2008-12-02 2009-11-30 Methods and apparatus for reducing stick-slip
MX2015001319A MX342292B (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly.
BR122012029014-9A BR122012029014B1 (en) 2008-12-02 2009-11-30 WELL DRILLING CONTROL MECHANISM AND ELECTRONIC CONTROLLER
EP20090768225 EP2364398B1 (en) 2008-12-02 2009-11-30 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly
RU2012144426/03A RU2518699C1 (en) 2008-12-02 2012-10-18 Method and device for calculation of instantaneous rotary speed of bottomhole assembly
US14/027,741 US8950512B2 (en) 2008-12-02 2013-09-16 Methods and apparatus for reducing stick-slip
US14/589,349 US9885231B2 (en) 2008-12-02 2015-01-05 Methods and apparatus for reducing stick-slip
US15/842,147 US10533407B2 (en) 2008-12-02 2017-12-14 Methods and apparatus for reducing stick-slip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0907760.3A GB0907760D0 (en) 2009-05-07 2009-05-07 Method and apparatus for reducing stick-slip

Publications (1)

Publication Number Publication Date
GB0907760D0 true GB0907760D0 (en) 2009-07-22

Family

ID=40937416

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0907760.3A Ceased GB0907760D0 (en) 2008-12-02 2009-05-07 Method and apparatus for reducing stick-slip

Country Status (1)

Country Link
GB (1) GB0907760D0 (en)

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)