ACOUSTIC SOURCE APPARATUS, SYSTEMS, AND METHODS
    1.
    发明公开
    ACOUSTIC SOURCE APPARATUS, SYSTEMS, AND METHODS 审中-公开
    声源装置,系统和方法

    公开(公告)号:EP2831631A1

    公开(公告)日:2015-02-04

    申请号:EP12874096.6

    申请日:2012-04-09

    IPC分类号: G01V1/02

    CPC分类号: G01V1/143 G01V2210/1299

    摘要: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to rotate a rotatable driving member having at least one driving lobe, and to periodically contact at least one cam on a unitary driven member with the at least one driving lobe during rotation of the rotatable driving member, to set the driven member in motion. This motion can be used to launch an acoustic wave along an axis substantially orthogonal to the axis of rotation of the driving member, where the driving member disposed completely within the driven member. The signature of the acoustic wave can be at least partially determined by the profile of the cam and the rotation rate of the driving member. Additional apparatus, systems, and methods are disclosed.

    摘要翻译: 在一些实施例中,装置和系统以及方法和物品可以操作以旋转具有至少一个驱动凸轮的可旋转驱动构件,并且周期性地接触单一从动构件上的至少一个凸轮, 在可旋转驱动部件旋转期间至少一个驱动凸起,以使从动部件运动。 该运动可用于沿着基本上垂直于驱动构件的旋转轴线的轴线发射声波,其中驱动构件完全设置在从动构件内。 声波的特征可以至少部分地由凸轮的轮廓和驱动构件的旋转速率确定。 公开了另外的设备,系统和方法。

    DIELECTRIC TOOL-BASED FORMATION POROSITY LOGGING SYSTEMS AND METHODS
    2.
    发明授权
    DIELECTRIC TOOL-BASED FORMATION POROSITY LOGGING SYSTEMS AND METHODS 有权
    ON FOR MEASURING地层孔隙度电介质TOOL为基础的系统和方法

    公开(公告)号:EP2699946B1

    公开(公告)日:2015-05-20

    申请号:EP11764935.0

    申请日:2011-09-26

    IPC分类号: G01V3/30 G06F1/28 G06F1/32

    摘要: A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.

    A METHOD FOR DETERMINING FORMATION POROSITY
    3.
    发明授权
    A METHOD FOR DETERMINING FORMATION POROSITY 有权
    方法用于确定地层的孔隙度

    公开(公告)号:EP2699945B1

    公开(公告)日:2015-03-04

    申请号:EP11717855.8

    申请日:2011-04-18

    IPC分类号: G06F1/28 G06F1/32 G01V3/30

    摘要: A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.

    VARIABLE STIFFNESS DOWNHOLE TOOL HOUSING
    4.
    发明公开
    VARIABLE STIFFNESS DOWNHOLE TOOL HOUSING 审中-公开
    腔体内变刚度井具

    公开(公告)号:EP2817662A1

    公开(公告)日:2014-12-31

    申请号:EP12876718.3

    申请日:2012-05-17

    IPC分类号: G01V1/52

    摘要: Systems and methods for implementing and using a variable stiffness downhole tool housing including cylindrical segments positioned along a common axis, with a pair of segments each coupled to a bulkhead and positioned at either axial end of the tool housing are provided. The housing also includes a flexible cylindrical sleeve, positioned along the common axis between two of the plurality of cylindrical segments, that includes a first and second region with an outer diameter no larger than a common segment inner diameter and a third region located between the first and second regions and with an outer diameter no larger than a common segment outer diameter (the first and second regions each at least partially inserted into an end of one segment). A stiffness controller controls the stiffness of the tool housing by controlling at least part of an axial force exerted between the two segments.

    METHODS AND SYSTEMS FOR ESTIMATING FORMATION RESISTIVITY AND POROSITY
    5.
    发明公开
    METHODS AND SYSTEMS FOR ESTIMATING FORMATION RESISTIVITY AND POROSITY 有权
    方法用于确定地层的孔隙度

    公开(公告)号:EP2699945A1

    公开(公告)日:2014-02-26

    申请号:EP11717855.8

    申请日:2011-04-18

    IPC分类号: G01V3/30

    摘要: A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.

    STRUCTURAL ELEMENT FOR SONIC TOOLS AND ACOUSTIC ISOLATORS
    6.
    发明公开
    STRUCTURAL ELEMENT FOR SONIC TOOLS AND ACOUSTIC ISOLATORS 审中-公开
    STRUKTURELEMENTFÜRAKUSTISCHE WERKZEUGE UND AKUSTISCHE ISOLATOREN

    公开(公告)号:EP3149518A1

    公开(公告)日:2017-04-05

    申请号:EP15829448.8

    申请日:2015-08-06

    摘要: An acoustic tool for evaluating a geologic formation includes a housing member disposed between transmitter and receiver sections of the acoustic tool. The housing member defines a change in direction in an acoustic path extending therethrough such that acoustic signals traveling through the housing member are delayed and disrupted. The delay and disruption may isolate the acoustic signals traveling through the housing member from acoustic signals traveling through the geologic formation. Thus, the acoustic tool may facilitate identification and evaluation of acoustic signals traveling through the geologic formation.

    摘要翻译: 用于评估地质构造的声学工具包括设置在声学工具的发射器和接收器部分之间的壳体构件。 壳体构件在延伸穿过其中的声学路径中限定方向的变化,使得穿过壳体构件的声学信号被延迟和破坏。 延迟和破坏可以隔离穿过壳体构件的声学信号与穿过地质构造的声学信号。 因此,声学工具可以有助于识别和评估穿过地质构造的声学信号。

    A HIGH-PERFORMANCE DIPOLE ACOUSTIC TRANSMITTER
    7.
    发明公开
    A HIGH-PERFORMANCE DIPOLE ACOUSTIC TRANSMITTER 审中-公开
    HOCHLEISTUNGSFÄHIGERAKUSTISCHER ZWEIPOLIGER SENDER

    公开(公告)号:EP3090125A1

    公开(公告)日:2016-11-09

    申请号:EP14884216.4

    申请日:2014-02-27

    IPC分类号: E21B47/022 E21B47/14

    摘要: A disclosed high-purity dipole transmitter has a longitudinal axis, an oscillation axis, and a side axis, each of the axes being mutually orthogonal. The transmitter includes an outer shell having external surfaces for displacing fluid along the oscillation axis. The transmitter also includes a reaction mass positioned inside the outer shell. The transmitter also includes an electromagnetic actuator that drives the outer shell relative to the reaction mass. The transmitter also includes a pair of matching springs separated along the longitudinal axis, where each spring is coupled between the outer shell and the reaction mass to enable compliant dipole motion of the outer shell along the oscillation axis while suppressing motion along other axes. Each spring includes a beam arrangement with each beam extending lengthwise in a direction parallel to the side axis and being thinnest in a direction parallel to the oscillation axis. The outer shell, the reaction mass, the electromagnetic actuator, and each spring, have mirror symmetry in a plane that includes the oscillation axis and the longitudinal axis, and have mirror symmetry in a plane that includes the side axis and the longitudinal axis.

    摘要翻译: 所公开的高纯度偶极子发射器具有纵向轴线,振荡轴线和侧轴线,每个轴线是相互正交的。 变送器包括具有用于沿着振荡轴移动流体的外表面的外壳。 发射机还包括定位在外壳内部的反作用物质。 变送器还包括一个相对于反作用质量驱动外壳的电磁执行器。 发射机还包括一对沿着纵向轴线分离的匹配弹簧,其中每个弹簧联接在外壳和反作用物体之间,以使外壳沿着振荡轴顺应偶极子运动,同时抑制沿其它轴的运动。 每个弹簧包括梁结构,其中每个梁在平行于侧轴线的方向上纵向延伸并且在平行于振荡轴线的方向上最薄。 外壳,反作用物质,电磁致动器和每个弹簧在包括振荡轴和纵向轴的平面中具有镜像对称性,并且在包括侧轴和纵轴的平面中具有镜像对称性。

    DIELECTRIC TOOL-BASED FORMATION POROSITY LOGGING SYSTEMS AND METHODS
    9.
    发明公开
    DIELECTRIC TOOL-BASED FORMATION POROSITY LOGGING SYSTEMS AND METHODS 有权
    ON FOR MEASURING地层孔隙度电介质TOOL为基础的系统和方法

    公开(公告)号:EP2699946A1

    公开(公告)日:2014-02-26

    申请号:EP11764935.0

    申请日:2011-09-26

    IPC分类号: G01V3/30

    摘要: A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.