公开(公告)号：EP2097645A1

公开(公告)日：2009-09-09

申请号：EP07858798.7

申请日：2007-12-21

申请人： QINETIQ LIMITED

发明人： LUDLOW, Jeremy, Leonard, Clive ,  GORE, Jonathan, Geoffrey ,  BOWLES, Adrian, Robert ,  MAYLIN, Mark, Gregory ,  MCBRIDE, Richard, Carson ,  KADDOUR, Abdul-Salam ,  ABDEL RAHAMAN, Ahmed, Yehia, Amin

IPC分类号： F04B17/00 ,  F04B53/00

CPC分类号： F04B17/003 ,  F04B5/00 ,  F04B53/007 ,  F04B53/143 ,  F04B53/162 ,  F05C2201/046 ,  F05C2225/04

摘要： A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.

公开(公告)号：EP2097645B1

公开(公告)日：2012-07-18

申请号：EP07858798.7

申请日：2007-12-21

申请人： QinetiQ Limited

发明人： LUDLOW, Jeremy, Leonard, Clive ,  GORE, Jonathan, Geoffrey ,  BOWLES, Adrian, Robert ,  MAYLIN, Mark, Gregory ,  MCBRIDE, Richard, Carson ,  KADDOUR, Abdul-Salam ,  ABDEL RAHAMAN, Ahmed, Yehia, Amin

IPC分类号： F04B17/00 ,  F04B53/00 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B17/003 ,  F04B5/00 ,  F04B53/007 ,  F04B53/143 ,  F04B53/162 ,  F05C2201/046 ,  F05C2225/04

摘要： A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.

公开(公告)号：EP1971770A1

公开(公告)日：2008-09-24

申请号：EP06831419.4

申请日：2006-12-19

申请人： QinetiQ Limited

发明人： BOWLES, Adrian, Robert ,  EATON, Stuart, John ,  GORE, Jonathan, Geoffry ,  MCBRIDE, Richard, Carson ,  RAHMAN, Ahmed, Yehia, Amin

IPC分类号： F03B13/02 ,  F03B17/00

CPC分类号： F03B17/00 ,  E21B41/0085 ,  F03B13/02 ,  F05B2210/16 ,  F05B2240/97 ,  F05B2250/411 ,  F05B2260/407 ,  F05B2270/709 ,  H01L41/1136 ,  H02N2/185 ,  Y02E10/20

摘要： A device for the generation of electrical power from a fluid flow, and more particularly for harvesting power from flows downhole in oil or gas wells, comprises a cylinder or other blunt body (1) arranged crosswise to the flow and supported on the end of a sprung cantilever arm (3) held in a fixed mount, with freedom to oscillate in response to the shedding of a Karman vortex trail v from the' body. The resultant motion of the body (1) and arm (3) is converted into electrical energy by piezoelectric material (5) which is attached to, and stressed by, flexure of the arm. Other arrangements of piezoelectric and inductive power generation from the oscillation of the device are described.

公开(公告)号：EP2191102B1

公开(公告)日：2012-02-15

申请号：EP08806371.4

申请日：2008-09-24

申请人： QinetiQ Limited

发明人： BOWLES, Adrian, Robert ,  EATON, Stuart, John ,  HOPKINS, Michael, William ,  JARMAN, Timothy, Rupert, Charles

IPC分类号： E21B47/12 ,  E21B17/02

CPC分类号： E21B47/12 ,  E21B17/028 ,  E21B47/122

摘要： Apparatus for the wireless transmission of data, and preferably also of power, across a space between a length of production tubing (1) and a surrounding casing (2) in a petrochemical well, comprises a pair of inductively-coupled coils, a first of which (13) is located on the exterior of the production tubing generally coaxially therewith, and the second of which (8) is located on the interior of the casing generally coaxially therewith. This may be used in particular as part of a system for transmitting power and data to/from a sensor (5) monitoring the pressure and/or other environmental conditions within the 'B' annulus B of a sub-sea well.

公开(公告)号：EP2191102A2

公开(公告)日：2010-06-02

申请号：EP08806371.4

申请日：2008-09-24

申请人： QinetiQ Limited

发明人： BOWLES, Adrian, Robert ,  EATON, Stuart, John ,  HOPKINS, Michael, William ,  JARMAN, Timothy, Rupert, Charles

IPC分类号： E21B47/12 ,  E21B17/02

CPC分类号： E21B47/12 ,  E21B17/028 ,  E21B47/122

摘要： Apparatus for the wireless transmission of data, and preferably also of power, across a space between a length of production tubing (1) and a surrounding casing (2) in a petrochemical well, comprises a pair of inductively-coupled coils, a first of which (13) is located on the exterior of the production tubing generally coaxially therewith, and the second of which (8) is located on the interior of the casing generally coaxially therewith. This may be used in particular as part of a system for transmitting power and data to/from a sensor (5) monitoring the pressure and/or other environmental conditions within the 'B' annulus B of a sub-sea well.