Invention Grant
- Patent Title: Method and apparatus for sealing an annulus around a drill-pipe when drilling down-hole
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Application No.: US15575492Application Date: 2016-05-20
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Publication No.: US10443342B2Publication Date: 2019-10-15
- Inventor: Morten Eidem , Rune Haugom
- Applicant: STATOIL PETROLEUM AS
- Applicant Address: NO Stavanger
- Assignee: STATOIL PETROLEUM AS
- Current Assignee: STATOIL PETROLEUM AS
- Current Assignee Address: NO Stavanger
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: GB1508619.2 20150520
- International Application: PCT/NO2016/050099 WO 20160520
- International Announcement: WO2016/186519 WO 20161124
- Main IPC: E21B21/10
- IPC: E21B21/10 ; E21B23/06 ; E21B33/127 ; E21B34/14
Abstract:
A method of sealing an annulus around a drill-pipe when drilling down-hole includes providing a deflated packer on a drill-pipe when drilling down-hole; opening one or more ports to the packer using a ball-activated valve; and circulating drilling fluid to inflate said packer through said one or more ports, to thereby form a seal in the annulus around the drill-pipe. An apparatus to carry out this method is also provided.
Public/Granted literature
- US20180163502A1 METHOD AND APPARATUS FOR SEALING AN ANNULUS AROUND A DRILL-PIPE WHEN DRILLING DOWN-HOLE Public/Granted day:2018-06-14
Information query
