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US07770666B2 Drilling fluid containing a recoverable lost circulation material and method of using and recovering the same 有权
含有可回收的流失物质的钻井液及其使用和回收方法

  • Patent Title: Drilling fluid containing a recoverable lost circulation material and method of using and recovering the same
  • Patent Title (中): 含有可回收的流失物质的钻井液及其使用和回收方法
  • Application No.: US12100971
    Application Date: 2008-04-10
  • Publication No.: US07770666B2
    Publication Date: 2010-08-10
  • Inventor: Barrett Allen
  • Applicant: Barrett Allen
  • Agency: Dunlap Codding, P.C.
  • Main IPC: E21B21/00
  • IPC: E21B21/00 ;  E21B21/06 ;  C09K8/03
Drilling fluid containing a recoverable lost circulation material and method of using and recovering the same
Abstract:
A method to recover a lost circulation material from a drilling fluid used in a drilling operation comprising the steps of: directing a drilling fluid containing a lost circulation material into a drill string positioned in a well bore, the lost circulation material having a magnetic property; recovering the drilling fluid containing at least a portion of the lost circulation material from the well bore; and magnetically separating the lost circulation material from the drilling fluid.
Abstract(Chinese):

一种用于从钻井作业中使用的钻井液中回收流失物质的方法，包括以下步骤：将含有易失循环材料的钻井液引导到位于井筒内的钻柱中，所述失效循环材料具有磁性; 从井筒回收含有至少一部分泄漏循环材料的钻井液; 并将漏液循环材料与钻井液分离。

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