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    • 3. 发明公开
    • A DOWNHOLE FLUID PROPERTIES OPTICAL ANALYSIS PROBE HAVING A REMOVABLE OPTICAL TIP
    • 具有可移除光学尖端的井下流体性质光学分析探针
    • EP3199942A1
    • 2017-08-02
    • EP16305103.0
    • 2016-02-01
    • Openfield
    • DONZIER, EricABBASSI, LindaTAVERNIER, Emmanuel
    • G01N21/85
    • G01V8/16E21B17/1078E21B47/011E21B47/102E21B49/08G01N21/474G01N21/645G01N21/8507G01N2021/4742G01N2021/6484G01N2021/8528G02B6/3624G02B6/4428
    • A downhole fluid properties optical analysis probe (1) to analyze at least one property of a multiphase flow mixture (100) flowing in a hydrocarbon well (51) has an elongated cylindrical body shape. It comprises an optical tip (5) at one end of the elongated cylindrical body arranged to be in contact with the multiphase flow mixture (100). It further comprises an optical link (6) adapted for a connection with an electronics module (11) at another end of the elongated cylindrical body arranged to be separated from the multiphase flow mixture (100). The optical tip (5) is coupled to the optical link (6) through a removable and watertight coupling (7). The removable and watertight coupling comprises a first portion (9a) of a protective tube (9) resistant to downhole conditions, said first portion (9a) enclosing the optical link (6) and comprising at least one first ring bulge (22) close to a coupling interface (10), and a second portion (9b) of the protective tube (9) partially enclosing the optical tip (5) such as to let a distal end of the optical tip (5) in contact with the multiphase flow mixture (100), said second portion (9b) comprising at least one second ring bulge (23) close to the coupling interface (10). It further comprises a coupling tube (24) surrounding facing ends of the first portion (9a) and the second portion (9b), said coupling tube (24) being adjusted in size to fit in between said first and second ring bulges (22, 23), and a coupling and protecting sheath (25) enclosing said first ring bulge (22), coupling tube (24) and second ring bulge (23) in a watertight manner.
    • 用于分析在烃井(51)中流动的多相流混合物(100)的至少一个性质的井下流体特性光学分析探针(1)具有细长的圆柱体形状。 它包括设置成与多相流混合物(100)接触的细长圆柱体的一端处的光学尖端(5)。 它还包括光学连接件(6),该光学连接件适于与设置成与多相流混合物(100)分离的细长圆柱形本体的另一端处的电子模块(11)连接。 光学尖端(5)通过可拆卸和水密的联接器(7)联接到光学连接件(6)。 所述可拆卸和水密接头包括耐受井下条件的保护管(9)的第一部分(9a),所述第一部分(9a)封闭所述光学链路(6)并且包括至少一个第一环形凸起(22) 耦合界面(10)和保护管(9)的第二部分(9b),所述保护管部分地包围光学尖端(5)以使光学尖端(5)的远端与多相流动混合物 (100),所述第二部分(9b)包括靠近所述联接接口(10)的至少一个第二环形凸起(23)。 它进一步包括围绕第一部分(9a)和第二部分(9b)的面向端部的耦合管(24),所述耦合管(24)的尺寸被调整以配合在所述第一和第二环形凸起 以及以水密方式封闭所述第一环形凸起(22),联接管(24)和第二环形凸起(23)的联接和保护护套(25)。