INFLOW CONTROL SYSTEM FOR USE IN A WELLBORE
    2.
    发明公开
    INFLOW CONTROL SYSTEM FOR USE IN A WELLBORE 有权
    用于井眼的INFLOW控制系统

    公开(公告)号:EP3204600A1

    公开(公告)日:2017-08-16

    申请号:EP15784869.8

    申请日:2015-10-08

    摘要: A well system for producing fluids from a well that intersects a subterranean formation; where the well system includes an inflow control device for providing a continuous rate of fluid flow. The inflow control device is formed so that the pressure drop of the fluid per unit length remains substantially constant along the length of the well. The inflow control device has an inner diameter that increases at a constant rate with distance from the bottom of the well. Multiple inflow control devices are coupled together in series to form an inflow control system in the well, and wherein the inner diameter of the inflow control system uniformly increases with distance from the bottom of the well.

    摘要翻译: 一种用于从与地下地层相交的井中产生流体的井系统,其中井系统包括用于提供连续速率的流体流动的流入控制装置。 流入控制装置形成为使得单位长度的流体的压降沿着井的长度保持基本恒定。 流入控制装置的内径随着离井底的距离而以恒定的速率增加。 多个流入控制装置串联连接在一起以在井中形成流入控制系统,并且其中流入控制系统的内径随着离井底部的距离而均匀增加。

    METHOD AND ACIDIZING TOOL FOR DEEP ACID STIMULATION USING ULTRASOUND
    5.
    发明授权
    METHOD AND ACIDIZING TOOL FOR DEEP ACID STIMULATION USING ULTRASOUND 有权
    使用超声波进行深度酸刺激的方法和酸化工具

    公开(公告)号:EP2788577B1

    公开(公告)日:2018-02-28

    申请号:EP12806782.4

    申请日:2012-12-07

    IPC分类号: E21B43/00 E21B43/26 E21B43/16

    摘要: A method of deep acid stimulation for a zone to be treated in an underground formation using an acidizing tool, the method including the steps of introducing the acidizing tool into the well bore, introducing the acid formulation onto the well bore wall at the treatment zone and introducing ultrasound energy into the underground formation at the treatment zone. The subsequent acid penetration depth is deeper than the initial acid penetration depth. A method of stress fracturing a portion of an underground formation includes the steps of introducing the acidizing tool into a well bore and introducing the acid formulation and the ultrasound energy at the focused treatment point. The weakened acidized spots in combination with the stress on the underground formation causes oriented stress-induced fractures to form that are fluidly coupled with the well bore. An acidizing tool includes an acid delivery system and an ultrasonic transmitter.

    PULSATING FLOW METER
    6.
    发明公开
    PULSATING FLOW METER 审中-公开
    PULSATING流量计

    公开(公告)号:EP3264050A1

    公开(公告)日:2018-01-03

    申请号:EP17186848.2

    申请日:2012-10-05

    IPC分类号: G01F1/32 G01F1/42

    CPC分类号: G01F1/3218 G01F1/42

    摘要: A flow system based on pulsating mechanism that has better accuracy compared to conventional vortex meters due to the fact that the pulsations generated have increased signal response and lower frequency, both of which are favorable for a high accuracy measurement. Certain embodiments include a housing, a bluff body, an orifice plate, and means for detecting a pulsating frequency of pulsating flow and determining the fluid flow rate based on the detected pulsating frequency. In certain embodiments, the housing can include an outer shell, an inlet, and an outlet.

    摘要翻译: 基于脉动机构的流量系统与传统涡街流量计相比具有更高的精度,这是因为所产生的脉动具有增加的信号响应和较低的频率,这两者都有利于高精度测量。 某些实施例包括壳体,非流线形体,孔板以及用于检测脉动流动的脉动频率并基于检测到的脉动频率确定流体流动速率的装置。 在某些实施例中,外壳可以包括外壳,入口和出口。

    TOMOGRAPHIC IMAGING OF MULTIPHASE FLOWS
    10.
    发明公开
    TOMOGRAPHIC IMAGING OF MULTIPHASE FLOWS 审中-公开
    TOMOGRAFISCHE BILDGEBUNG VON MEHRPHASIGENSTRÖMEN

    公开(公告)号:EP3126787A2

    公开(公告)日:2017-02-08

    申请号:EP15714349.6

    申请日:2015-03-19

    摘要: Tomographic reconstruction is performed of cross-sectional images of downhole or surface multiphase flows containing water (brine), oil, and gas phases. Measures are obtained of digital transmission (or analog attenuation) and also of analog transit time to form two views of the same cross sectional flow in a location of interest in a flow conduit. The measures are then merged by synthesizing a composite image of the multiphase flows. Rather than performing a complex tomographic reconstruction requiring a large number of calculations, measures are also obtained directly from the tomographic pattern which can be used to reconstruct an approximation of the cross sectional flow by the superposition of circles of variable position, radius and density representing flow patterns.

    摘要翻译: 对含有水(盐水),油和气相的井下或表面多相流的截面图进行层析重建。 获得数字传输(或模拟衰减)以及模拟传播时间的措施,以形成在流动管道中感兴趣的位置中相同横截面流动的两个视图。 然后通过合成多相流的合成图像来合并这些措施。 而不是执行需要大量计算的复杂层析成像重建,也可以直接从断层图像获得测量值,该层析图案可用于通过可变位置,半径和密度的圆的叠加代表流量来重建横截面流的近似 图案。