发明名称 Packer cup for sealing in multiple wellbore sizes eccentrically
摘要 The present invention generally relates to a packer for creating a seal in an annular area. In one aspect, a packer cup for use in a wellbore is provided. The packer cup includes a base and a first seal segment having a first end and a second end. The first end of the first seal segment is attached to the base. The packer cup further includes a second seal segment that is spaced apart from the base. The second seal segment is attached to the second end of the first seal segment, wherein each seal segment is configured to move from a retracted shape to an expanded shape upon activation of the respective seal segment. In another aspect, a method for creating a seal between a tubular and a wellbore is provided. In a further aspect, a packer is provided.
申请公布号 US9140095(B2) 申请公布日期 2015.09.22
申请号 US201314052505 申请日期 2013.10.11
申请人 WEATHERFORD TECHNOLOGY HOLDINGS, LLC 发明人 Northam Paul;Glaser Mark C.
分类号 E21B33/126;E21B33/12 主分类号 E21B33/126
代理机构 Patterson & Sheridan, L.L.P. 代理人 Patterson & Sheridan, L.L.P.
主权项 1. A packer cup for use in a wellbore, the packer cup comprising: a workstring; a base fixed to the workstring; a first seal segment attached to the base such that the workstring extends through the first seal segment; and a second seal segment that is spaced apart from the base and attached to the first seal segment, wherein each seal segment is configured to move from a retracted shape to an expanded shape upon activation of the respective seal segment, wherein an end of the first seal segment is connected to an end of the second seal segment such that a connection portion formed between the first and second seal segments has an outer diameter less than an outer diameter of the first and second seal segments when in the retracted shape, wherein the connection portion has an inner diameter less than an inner diameter of the first and second seal segments when in the retracted shape.
地址 Houston TX US