Title:
WELLBORE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/056836
Kind Code:
A3
Abstract:
A wellbore control device comprising a housing (1) defining a throughbore (2) for receiving a tubular, a first gate (4) having a first hole (6) and a second gate (3) having a second hole (5), piston rods (12a, 12b) operably connected to the first and second gates (4,5), the first and second gates (3,4) being supported by the housing (1) and movable transverse to the throughbore (2) between an open position and a closed position, wherein the open position the first and second holes (5,6) are aligned with the throughbore (2), and wherein the gates (3,4) in the closed position split an upper portion (2') of the throughbore (2) completely from a lower portion (2") of the throughbore (2).
Inventors:
NORBOM ERIK (NO)
Application Number:
PCT/NO2017/050241
Publication Date:
June 21, 2018
Filing Date:
September 22, 2017
Export Citation:
Assignee:
MARITIME PROMECO AS (NO)
International Classes:
E21B29/08; E21B33/06
Domestic Patent References:
| WO2014199184A2 | 2014-12-18 | |||
| WO2016189034A1 | 2016-12-01 |
Foreign References:
| US20160108694A1 | 2016-04-21 | |||
| GB2360804A | 2001-10-03 | |||
| US4997162A | 1991-03-05 | |||
| JPH03279591A | 1991-12-10 |
Attorney, Agent or Firm:
ZACCO NORWAY AS (NO)
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