发明名称 Degradable balls for use in subterranean applications
摘要 Degradable balls for downhole use may include an incompliant degradable polymer and a compliant filler material, the incompliant degradable polymer having an elastic modulus of about 2 GPa or greater, and the compliant filler material having an elastic modulus of less than about 2 GPa. Such degradable balls may be useful in sealing segments of a wellbore and actuating wellbore tools.
申请公布号 US9260935(B2) 申请公布日期 2016.02.16
申请号 US201313907336 申请日期 2013.05.31
申请人 Halliburton Energy Services, Inc. 发明人 Murphree Zachary Ryan;Fripp Michael Linley;Walton Zachary William;Liang Feng;Fulton Dwight
分类号 E21B33/12;C09K8/68;C08J3/20;C08J5/00;C08J7/04;C09K8/03;C09K8/50;C09K8/516;C09D167/04;E21B33/138;E21B34/14 主分类号 E21B33/12
代理机构 McDermott Will & Emery LLP 代理人 McDermott Will & Emery LLP ;Wustenberg John W.
主权项 1. A method comprising: introducing a degradable ball into a wellbore penetrating a subterranean formation, wherein the degradable ball comprises an incompliant degradable polymer and a compliant filler material, the incompliant degradable polymer having an elastic modulus of about 2 GPa or greater, and the compliant filler material having an elastic modulus of less than about 2 GPa; seating the degradable ball in a baffle arranged within the wellbore, and thereby reducing a fluid flow through the baffle and defining an upper segment of the wellbore and a lower segment of the wellbore; treating the upper segment of the wellbore; and degrading the degradable ball and thereby returning fluid connectivity between the upper segment of the wellbore and the lower segment of the wellbore.
地址 Houston TX US