公开(公告)号：US20140190706A1

公开(公告)日：2014-07-10

申请号：US14145888

申请日：2013-12-31

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Joseph Varkey ,  Burcu Unal ,  Sheng Chang ,  Matthew Garber ,  Kevin T. Scarsdale

IPC: F04B47/06 ,  E21B4/04

CPC classification number: F04B47/06 ,  E21B17/206 ,  E21B19/22 ,  E21B43/128 ,  H01B7/046

Abstract: 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 a hole 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.

Abstract translation: 提供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吸。 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料或闭孔泡沫。 液体填充剂中的添加剂可补偿ESP操作期间的热膨胀，或减少固体基质的总重量，或在存在油，水，盐或气体的情况下膨胀以密封连续油管中的孔。 连续油管可以从扁钢带形成并围绕ESP电缆进行缝焊。 在液体填充物固化成固体基质之前，可以通过提供额外的ESP电缆来松弛，从而可以生产耐深拉伸的耐久拉伸管。 连续油管可以用腐蚀性井的耐腐蚀合金包覆。