Invention Grant
US07726418B2 Method and apparatus for adding a tubular to drill string with diverter
有权
用于将管子加入到具有转向器的钻柱的方法和装置中
- Patent Title: Method and apparatus for adding a tubular to drill string with diverter
- Patent Title (中): 用于将管子加入到具有转向器的钻柱的方法和装置中
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Application No.: US10576893Application Date: 2004-08-16
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Publication No.: US07726418B2Publication Date: 2010-06-01
- Inventor: Laurence John Ayling
- Applicant: Laurence John Ayling
- Applicant Address: unknown Douglass, Isle of Man
- Assignee: Coupler Development Limited
- Current Assignee: Coupler Development Limited
- Current Assignee Address: unknown Douglass, Isle of Man
- Agent Ronald B. Sherer; Gerow D. Brill
- Priority: GB0319317.4 20030816
- International Application: PCT/GB2004/003501 WO 20040816
- International Announcement: WO2005/019596 WO 20050303
- Main IPC: E21B21/10
- IPC: E21B21/10
Abstract:
Apparatus and a method for adding and removing tubulars whilst containing the pressure within a drill string and/or maintaining circulation of drilling fluid down a drill string using a diverter sub which is able to open up to mud flow from a side mud port and close off the flow of mud from above the drill string with or without continuous rotation of the drill string.
Public/Granted literature
- US20060254822A1 Method and apparatus for adding a tubular to drill string with diverter Public/Granted day:2006-11-16
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