US 12,116,869 B2
Subsea methane production assembly
Anders Billington, Lommedalen (NO); Tatiana Gordeeva, Oslo (NO); and Pavel Stefanov, Høvik (NO)
Assigned to Aker Solutions AS, Lysaker (NO)
Appl. No. 16/313,641
Filed by Aker Solutions AS, Lysaker (NO)
PCT Filed Jul. 3, 2017, PCT No. PCT/NO2017/050176
§ 371(c)(1), (2) Date Dec. 27, 2018,
PCT Pub. No. WO2018/009073, PCT Pub. Date Jan. 11, 2018.
Claims priority of application No. 20161125 (NO), filed on Jul. 6, 2016.
Prior Publication US 2019/0226303 A1, Jul. 25, 2019
Int. Cl. E21B 43/013 (2006.01); E21B 41/00 (2006.01); E21B 43/01 (2006.01); E21B 43/36 (2006.01)
CPC E21B 43/013 (2013.01) [E21B 43/01 (2013.01); E21B 43/36 (2013.01); E21B 41/0099 (2020.05)] 5 Claims
OG exemplary drawing
 
1. A methane production assembly comprising:
a subsea well extending from the seabed to a methane hydrate formation;
a well casing extending into the subsea well;
a subsea well control assembly;
a submersible pump in fluid communication with the methane hydrate formation;
a methane-water separator having a water outlet and a methane outlet;
wherein the submersible pump is arranged above the subsea well;
a riser extending from a surface installation down to the subsea well control assembly; and
wherein the methane-water separator is integrated with a riser joint.