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    • 7. 发明申请
    • ENCAPSULATING AN ELECTRIC SUBMERSIBLE PUMP CABLE IN COILED TUBING
    • 在卷管中包裹电动潜水泵电缆
    • WO2014107470A2
    • 2014-07-10
    • PCT/US2013/078565
    • 2013-12-31
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • VARKEY, JosephUNAL, BurcuCHANG, ShengGARBER, MatthewSCARSDALE, Kevin
    • F04B47/06E21B17/206E21B19/22E21B43/128H01B7/046
    • An electric submersible pump (ESP) cable encapsulated in coiled tubing is provided. In an example process, ESP cable is drawn through coiled tubing. Liquid filler that cures into a supportive solid matrix is pumped into the coiled tubing. The solid matrix may be a rubberized filler or a closed-cell foam. Additives in the liquid filler can compensate for thermal expansion during operation of the ESP, or decrease overall weight of the solid matrix, or swell in the presence of oil, water, salt, or gas to seal holes in the coiled tubing. The coiled tubing may be formed and seam-welded around the ESP cable from flat steel strip. A long coiled tubing resistant to stretch for deep wells may be produced by providing extra ESP cable for slack before the liquid filler cures into solid matrix. The coiled tubing may be clad with corrosion-resistant alloy for corrosive wells.
    • 提供了一种封装在连续油管中的电潜泵(ESP)电缆。 在一个示例过程中,ESP电缆通过连续油管抽出。 固化成支撑固体基质的液体填料被泵入连续油管。 固体基质可以是橡胶填充剂或闭孔泡沫。 液体填充剂中的添加剂可补偿ESP运行期间的热膨胀,或降低固体基质的总重量,或在存在油,水,盐或气体时膨胀以密封连续油管中的孔。 连续油管可以由扁钢带围绕ESP电缆形成并缝焊。 通过在液体填料固化成固体基质之前提供用于松弛的额外ESP电缆,可以生产抗拉深井的长连续油管。 连续油管可涂覆耐腐蚀合金,用于腐蚀性井。