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    53.
    发明专利
    未知

    公开(公告)号：BRPI0811408A2

    公开(公告)日：2014-11-04

    申请号：BRPI0811408

    申请日：2008-06-16

    Applicant: TOOL TECH AS

    Inventor： ERIKSEN EGIL

    IPC: F16K31/04 ,  F15B13/04

    Abstract: An actuator for a pilot for a hydraulic control valve including a direct-current servo-motor (1) provided with a high-ratio gear (4) and arranged to be operated by a battery (2) with an associated battery charger (13), and an oil return port (10), a pilot port (11) and a hydraulic supply (12) and via the gear (4), the servo-motor (1) is arranged to move a valve stem (5) which bears via a first valve ball (7) on a spring-loaded pilot needle (8) which bears, opposite the first valve ball (7), on a second spring-loaded valve ball (7), a spring and a return spring (9) being arranged to move the valve balls (7) towards the pilot needle (8), and a microprocessor with an associated controller (3) being arranged to determine the position of the valve stem (5) by registration of the rotational position of the servo-motor; and, if a control signal is interrupted, the controller (3) is arranged to drive the valve stem (5) into a predetermined position by means of current from the battery (2).

    Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions
    54.
    发明专利
    Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions 未知

    公开(公告)号：AU2010248222B2

    公开(公告)日：2013-04-04

    申请号：AU2010248222

    申请日：2010-05-06

    Applicant: TOOL TECH AS

    Inventor： ERIKSEN EGIL

    IPC: G01N1/20 ,  B01D17/032 ,  E21B43/36 ,  E21B47/10 ,  E21B49/08 ,  G01N27/06

    Abstract: The Invention concerns a permanent subsea sampling and analysis system (1), which typically is integrated into a replaceable equipment module for a choke valve (2) of a subsea production well. The analysis system (1) separates a sample into liquid fractions consisting of crude oil, condensate and produced water and then measures the salinity of the water as well as the volumetric ratio between the liquid fractions. With this equipment it will be possible to check, at regular intervals, the development in salinity of the produced water from a singular well without disturbing the production from the well. The information from the analysis system (1) may be used to update the calibration set-up of the multiphase flow meter of the well, or to reveal a possible water breakthrough resulting from water injection into a reservoir, or for other reservoir analyses. Due to the analysis equipment becoming permanently installed on the subsea well equipment, costs of taking samples via intervention operations from vessels are avoided, also avoiding temporary shut-down of production from other wells producing to a joint subsea manifold for the purpose of investigating which well may possibly have experienced water breakthrough.

    55.
    发明专利
    未知

    公开(公告)号：NO332527B1

    公开(公告)日：2012-10-08

    申请号：NO20101710

    申请日：2010-12-08

    Applicant: TOOL TECH AS

    Inventor： ERIKSEN EGIL

    IPC: F15B1/00 ,  F15B1/033

    Abstract: The invention relates to a method of condition-monitoring hydraulic accumulators. The gas content of the accumulators is monitored by the gas volume being calculated on the basis of the weight and working pressure of the accumulators. The working pressure of the accumulators and a relevant operational history are recorded with an electronic logging system which stores data for use in connection with condition-based maintenance of the accumulators.

    Hydraulic control valve with two valve slides
    56.
    发明专利
    Hydraulic control valve with two valve slides 未知

    公开(公告)号：AU2011224923A1

    公开(公告)日：2012-09-13

    申请号：AU2011224923

    申请日：2011-03-03

    Applicant: TOOL TECH AS

    Inventor： ERIKSEN EGIL

    IPC: F16K31/02

    Abstract: An electromechanically actuated, hydraulic control valve (1) with a double slide (4B, 6D) arranged in a valve housing (2A) which is in fluid communication with at least three hydraulic-fluid ports (2B, 2C, 2D), wherein a first and a second axially movable valve slide (4B, 6D) are, independently of each other, arranged to sealingly abut corresponding portions of a double valve seat (5A), each valve slide (4B, 6D) is provided with a slide nut (4C, 6E) which is in engagement with an external threaded portion on the valve slide (4B, 6D) and is connected via transmission means (4D, 4E, 4F; 6F, 6G, 6H) to an actuator (4G, 61), and to each valve slide (4B, 6D), a position sensor (4H, 61) is connected, arranged to indicate a rotational motion of the slide nut (4C, 6E).

    57.
    发明专利
    未知

    公开(公告)号：NO20101710A1

    公开(公告)日：2012-06-11

    申请号：NO20101710

    申请日：2010-12-08

    Applicant: TOOL TECH AS

    Inventor： ERIKSEN EGIL

    IPC: F15B1/00 ,  F15B1/033

    Abstract: The invention relates to a method of condition-monitoring hydraulic accumulators. The gas content of the accumulators is monitored by the gas volume being calculated on the basis of the weight and working pressure of the accumulators. The working pressure of the accumulators and a relevant operational history are recorded with an electronic logging system which stores data for use in connection with condition-based maintenance of the accumulators.

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