US 11,668,152 B2
Christmas tree and assembly for controlling flow from a completed well
Torgeir Skauen, Asker (NO); and Stuart Spitz, Reading (GB)
Assigned to AKER SOLUTIONS AS, Lysaker (NO)
Appl. No. 17/635,010
Filed by AKER SOLUTIONS AS, Lysaker (NO)
PCT Filed Aug. 14, 2020, PCT No. PCT/NO2020/050205
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/029776, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 1911666 (GB), filed on Aug. 15, 2019.
Prior Publication US 2022/0290521 A1, Sep. 15, 2022
Int. Cl. E21B 33/038 (2006.01); E21B 47/117 (2012.01); E21B 33/035 (2006.01)
CPC E21B 33/0385 (2013.01) [E21B 47/117 (2020.05); E21B 33/0355 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A Christmas tree comprising:
a main body comprising,
a first main body end which is configured to be secured to a wellhead,
a second main body end which is configured to be connected to a production flowline, wherein, the main body is configured to enclose a main passage as a first fluid flow path which extends from the first main body end to the second main body end so that a fluid in the wellhead can pass along the main passage to the production flowline, and
a further passage comprising a first further passage end at an exterior of the main body and a second further passage end at the main passage, the further passage being configured to extend from the first further passage end to the second further passage end so as to provide a second fluid flow path from the main passage to the exterior of the main body;
an electrical bulkhead connector which is secured to the exterior of the main body so as to close the first further passage end, the electrical bulkhead connector comprising a first electrical connection and a second electrical connection;
a wet-mate connector which is mounted in the second further passage end so as to close the second further passage end;
a cable which is configured to transmit an electrical signal and to electrically connect the first electrical connection of the electrical bulkhead connector to the wet-mate connector; and
a sensor arranged in the further passage, the sensor being electrically connected to the second electrical connection of the electrical bulkhead connector.